Intro | Search taxa | Taxon tree | Search literature | Taxon match | Homonyms | Statistics | Webservice | Manual | FAQ | LifeWatch | Download | Log in

Homonyms

IRMNG homonym list - genus level - Initial letter = "A" (3295)

Please note, this is a provisional homonyms list from IRMNG on 2024-11-21, and is subject to change. It may include nomina nuda, rejected and otherwise non-current names, plus some published misspellings, in addition to homonyms that have been validly published. A small proportion of duplicate entries awaiting rationalisation may also be included.

Click on any genus name for additional details, as currently available.

Aa
     Aa H.G. Reichenbach, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Aa Baker, 1940 accepted as Philonesia Sykes, 1900 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Microcystidae (Family)

Aaaba
     Aaaba Bellamy, 2002 accepted as Aaaaba Bellamy, 2013 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Aaaba de Laubenfels, 1936 accepted as Crellastrina Topsent, 1927 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Crellidae (Family)

Aaata
 Aaata de Laubenfels, 1930 accepted as Clathria Schmidt, 1862 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Microcionidae (Family)
     Aaata Semenov, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Aaleniella
     Aaleniella Plumhoff, 1963 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Eucytheridae (Family)
     Aaleniella Conti & Fischer, 1981 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Trochidae (Family)

Abacella
     Abacella Maslov, 1956 † accepted as Abacella Maslov, 1956 † (nomen dubium)· Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Codiaceae (Family)
     Abacella Stechow, 1920 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Abacodes
 Abacodes Jeannel, 1948 accepted as Chaetodactyla Tschitscherin, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Abacodes Thomson, 1858 accepted as Buderes Murray, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Abaetetuba
 Abaetetuba Cruz, Salles & Hamada, 2017 accepted as Callibaetis Eaton, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Baetidae (Family)
     Abaetetuba Tourinho-Davis, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Sclerosomatidae (Family)

Abakaniella
     Abakaniella Betekhtina, 1966 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myalinida (Order) > Naiaditidae (Family)
     Abakaniella V.A. Chachlov, 1939 † (uncertain)· Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)

Abalius
     Abalius Cabanis, 1861 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Abalius Kraepelin, 1897 accepted as Abaliella Strand, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Uropygi (Order) > Thelyphonidae (Family)

Abama
 Abama Adanson, 1763 accepted as Narthecium Hudson, 1762 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dioscoreales (Order) > Nartheciaceae (Family)
 Abama Rafinesque, 1837 accepted as Narthecium Hudson, 1762 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dioscoreales (Order) > Nartheciaceae (Family)

Abantiades
 Abantiades Broun, 1914 accepted as Abantiadinus Schenkling in Schenkling & Marshall, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Abantiades Herrich-Schäffer, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hepialidae (Family)
     Abantiades Fairmaire, 1894 accepted as Neoabantis Gebien, 1910 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Abantis
     Abantis Fairmaire, 1892 accepted as Abantiades Fairmaire, 1894 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Abantis Jordan, 1925 † accepted as Absalomichthys Whitley, 1933 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Caristiidae (Family)
     Abantis Hoppfer, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)

Abapus
 Abapus Rafinesque, 1838 accepted as Papiria Thunberg, 1776 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)
     Abapus Adanson, 1763 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Abaris
 Abaris Voss, 1958 accepted as Keibaris Chûjô, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Abaris Dejean, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Abarys
 Abarys Turner, 1947 accepted as Abareia Whalley, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Abarys Agassiz, 1846 accepted as Abaris Dejean, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Abas
     Abas Fennah, 1950 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Achilidae (Family)
     Abas R. Ross & P.A. Sims, 1980 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Hemiaulales (Order) > Hemiaulaceae (Family)
 Abas Núñez & Yáñez, 1984 accepted as Liolaemus Wiegmann, 1834 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Tropiduridae (Family)

Abascantus
     Abascantus Stål, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Abascantus Schaufuss, 1886 accepted as Abascantodes Strand, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Abatus
     Abatus Troschel, 1851 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Schizasteridae (Family)
 Abatus Péringuey, 1898 accepted as Capabatus Csiki, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Abax
 Abax Stephens, 1827 accepted as Abax Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Abax Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Abbotia
     Abbotia Rafinesque, 1836 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Juncaginaceae (Family)
 Abbotia L.P. Perestenko, 1975 accepted as Neoabbottiella Perestenko, 1982 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Halymeniales (Order) > Halymeniaceae (Family)
     Abbotia McCook, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Abbotia Leach, 1830 accepted as Platysoma Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Abbottella
     Abbottella Henderson & Bartsch, 1920 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Annulariidae (Family)
     Abbottella Hollenberg, 1967 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)

Abbottia
 Abbottia L.P. Perestenko, 1977 accepted as Neoabbottiella Perestenko, 1982 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Halymeniales (Order) > Halymeniaceae (Family)
 Abbottia F. von Mueller, 1875 accepted as Timonius A.P. de Candolle, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Abbottina
 Abbottina McCulloch, 1977 accepted as Nonion de Montfort, 1808 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Nonionidae (Family)
     Abbottina Jordan & Fowler, 1903 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)

Abbreviata
     Abbreviata Travassos, 1920 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Physalopteridae (Family)
 Abbreviata Schulz, 1927 accepted as Abbreviata Travassos, 1920 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Physalopteridae (Family)

Abdera
 Abdera Thomson, 1859 accepted as Abdera Stephens, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melandryidae (Family)
     Abdera Stephens, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melandryidae (Family)

Abeillea
 Abeillea Simon, 1897 accepted as Abeillia Bonaparte, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)
 Abeillea Sahlberg, 1908 accepted as Microlipus Leconte, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melyridae (Family)

Abelia
     Abelia Kretzoi, 1938 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Felidae (Family)
     Abelia R. Brown in Abel, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dipsacales (Order) > Caprifoliaceae (Family)

Abella
     Abella Walker, 1862 accepted as Porela Walker, 1855 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lasiocampidae (Family)
     Abella von Heyden, 1826 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Abelterus
 Abelterus Heine & Reichenow, 1890 accepted as Eubucco Bonaparte, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Piciformes (Order) > Ramphastidae (Family)
 Abelterus Stål, 1865 accepted as Trocnada Walker, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Abemus
     Abemus Mulsant & Rey, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Abemus Mulsant & Rey, 1877 accepted as Abemus Mulsant & Rey, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Abeona
 Abeona Stål, 1876 accepted as Amblycara Bergroth, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
 Abeona Girard, 1855 accepted as Micrometrus Gibbons, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Embiotocidae (Family)

Aberdaria
     Aberdaria Holm, 1962 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)
 Aberdaria Blume, 1965 accepted as Primigulella Pilsbry, 1919 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Streptaxidae (Family)

Aberia
 Aberia Hochstetter, 1844 accepted as Dovyalis E.H.F. Meyer ex Arnott, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
     Aberia Melou, 1990 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Rhactorthidae (Family)

Abia
     Abia Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Cimbicidae (Family)
 Abia Agassiz, 1846 accepted as Habia Blyth in Cuvier, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)
     Abia Giebel, 1856 † accepted as Abia Giebel, 1856 † (taxon inquirendum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)
 Abia Poletaeva, 1972 † accepted as Labiostrina Poletaeva, 1972 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Pterocephaliidae (Family)

Abichia
     Abichia Andrusov, 1907 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Abichia Gemmellaro, 1888 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Abiella
     Abiella Ragosin, 1933 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Abiella Khalfin, 1950 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myalinida (Order) > Prokopievskiidae (Family)

Abietinella
     Abietinella Müller Hal., 1896 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Thuidiaceae (Family)
     Abietinella Levinsen, 1913 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Lafoeidae (Family)

Abietites
     Abietites W. Hisinger, 1837 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)
 Abietites V.S. Maljavkina, 1964 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Abiga
     Abiga Guérin-Méneville, 1860 accepted as Scelosodis Solier, 1835 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Abiga Saint-Lager, 1880 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Abila
     Abila Stål, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Romaleidae (Family)
 Abila Gray, 1867 accepted as Raspailia Nardo, 1833 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Axinellida (Order) > Raspailiidae (Family)

Ablabera
 Ablabera Erichson, 1847 accepted as Ablabera Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Ablabera Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Abola
 Abola Lindley, 1853 accepted as Caucaea Schlechter, 1920 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Abola Adanson, 1763 accepted as Cinna Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Abra
 Abra Gray, 1863 accepted as Ochotona Link, 1795 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Lagomorpha (Order) > Ochotonidae (Family)
     Abra Lamarck, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Semelidae (Family)

Abrana
     Abrana Parker, 1931 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Ranidae (Family)
 Abrana Strand, 1928 accepted as Ochotona Link, 1795 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Lagomorpha (Order) > Ochotonidae (Family)

Abranchus
 Abranchus Boïé, 1824 accepted as Abranchus Boïé, 1824 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Abranchus Johansson, 1896 accepted as Oceanobdella Caballero, 1956 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Rhynchobdellida (Order) > Piscicolidae (Family)
 Abranchus Harlan, 1825 accepted as Cryptobranchus Leuckart, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Caudata (Order) > Cryptobranchidae (Family)
 Abranchus accepted as Abrancha Hasselt, 1824 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda incertae sedis (Order) > Gastropoda incertae sedis (Family)

Abretia
     Abretia Rafinesque, 1814 accepted as Abretia Rafinesque, 1814 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Abretia H. Adams & A. Adams, 1853 accepted as Perirhoe Dall, 1908 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Terebridae (Family)

Abrodiaeta
     Abrodiaeta Brunner, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Abrodiaeta Péringuey, 1896 accepted as Abrodiella Bousquet, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Abrodiaeta Brunner, 1893 accepted as Allacta Saussure & Zehntner, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Ectobiidae (Family)

Abroma
     Abroma Stål, 1866 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Abroma N.J. Jacquin, 1776 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Abronia
     Abronia A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)
     Abronia Gray, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Anguidae (Family)

Abrus
     Abrus Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Abrus Dai & Zhang, 2002 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Absentia
 Absentia Togashi, 1990 accepted as Tenthredo Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)
     Absentia Huang, 2001 accepted as Huangiella Kammerer, 2006 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Eriophyidae (Family)

Absidia
     Absidia Mulsant, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cantharidae (Family)
     Absidia Van Tieghem, 1878 · Fungi (Kingdom) > Zygomycota (Phylum) > Mucoromycetes (Class) > Mucorales (Order) > Mucoraceae (Family)

Absolonia
 Absolonia Roewer, 1915 accepted as Abasola Strand, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Travuniidae (Family)
     Absolonia Börner, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Onychiuridae (Family)

Absonus
     Absonus González-Sponga, 1987 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Zalmoxidae (Family)
     Absonus Rubio & Rolán, 2021 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Orbitestellidae (Family)

Absyrtes
 Absyrtes Brischke, 1880 accepted as Absyrtus Holmgren, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Absyrtes Guenée, 1857 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Absyrtus
     Absyrtus Holmgren, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Absyrtus Rafinesque, 1815 accepted as Absyrtus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Hirudinoidea (awaiting allocation) (Order) > Hirudinoidea (awaiting allocation) (Family)

Acacallis
 Acacallis Pascoe, 1883 accepted as Orochlesis Pascoe, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Acacallis Lindley, 1853 accepted as Aganisia J. Lindley, 1839 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Acacallis Hübner, 1823 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Acachmena
 Acachmena H.P. Fuchs, 1960 accepted as Erysimum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Acachmena Turner, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nolidae (Family)
 Acachmena Turner, 1911 accepted as Cathetus Fletcher, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Uraniidae (Family)

Acaciella
     Acaciella N.L. Britton & J.N. Rose, 1928 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Acaciella Walter in Preiss, 1972 † · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > (Order) > (Family)

Acaciothrips
 Acaciothrips Priesner, 1968 accepted as Acaciothrips Priesner, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)
     Acaciothrips Priesner, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)

Acaena
     Acaena Mutis ex Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
     Acaena Treitschke, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Acaerus
 Acaerus Loginova, 1976 accepted as Shaerqia Kemal & Koçak, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Acaerus Pascoe, 1882 accepted as Paipalephorus Jekel, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Acalanthe
     Acalanthe Reichenbach, 1862 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Acalanthe Bonaparte, 1850 accepted as Erythrura Swainson, 1837 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Estrildidae (Family)

Acalanthis
     Acalanthis Erichson in Germar, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)
 Acalanthis Gistl, 1848 accepted as Steatoda Sundevall, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)

Acalia
     Acalia Gray, 1840 accepted as Acalia Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Valvatida (Order) > Ophidiasteridae (Family)
 Acalia Guenée in Duponchel, 1845 accepted as Lignyoptera Lederer, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Acalypha
     Acalypha Dejean, 1834 accepted as Acalypha Dejean, 1834 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Acalypha Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Acalyphes
     Acalyphes Turner, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Acalyphes J.C. Hasskarl, 1844 accepted as Acalypha Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Acalyptus
     Acalyptus Schönherr, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Acalyptus Duméril, 1853 accepted as Acalyptophis Boulenger, 1896 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Hydrophiidae (Family)

Acamarchis
     Acamarchis Rafinesque, 1815 accepted as Acamarchis Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
 Acamarchis Lamouroux, 1816 accepted as Bugula Oken, 1815 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Bugulidae (Family)

Acamas
     Acamas de Montfort, 1808 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Acamas Duchassaing & Michelotti, 1864 accepted as Mycale Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Mycalidae (Family)

Acamatus
 Acamatus Emery, 1894 accepted as Neivamyrmex Borgmeier, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)
 Acamatus Schönherr, 1833 accepted as Piazorhinus Schönherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Acamptus
 Acamptus Brancsik, 1897 accepted as Brancsikellus Berg, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Acamptus Leconte, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Acanthanthus
     Acanthanthus Boileau, 1916 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Acanthanthus Y. Ito, 1981 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)

Acanthaphis
 Acanthaphis Matsumura, 1918 accepted as Matsumuraja Schumacher, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
 Acanthaphis Del Guercio, 1908 accepted as Phylloxera Boyer de Fonscolombe, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Phylloxeridae (Family)

Acantharia
 Acantharia Haeckel, 1881 accepted as Acantharea · Chromista (Kingdom) > Retaria (Phylum) > Acantharia (Class) > (Order) > (Family)
     Acantharia Theissen & H. Sydow, 1918 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Venturiales (Order) > Venturiaceae (Family)
     Acantharia Quenstedt, 1881 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Acantharea (Class) > Actinelida (Order) > Actinastridae (Family)

Acanthascus
     Acanthascus Schulze, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)
     Acanthascus Schulze, 1885 accepted as Acanthascus Schulze, 1886 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)

Acanthaspis
     Acanthaspis Amyot & Serville, 1843 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)
 Acanthaspis Newberry, 1875 † accepted as Macropetalichthys Norwood & Owen, 1846 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Petalichthyida (Order) > Macropetalichthyidae (Family)

Acanthechinus
 Acanthechinus Stebbing, 1888 accepted as Actinacanthus Stebbing, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Epimeriidae (Family)
     Acanthechinus Duncan & Sladen, 1882 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Phymosomatoida (Order) > Phymosomatidae (Family)

Acanthella
 Acanthella Allman, 1883 accepted as Plumularia Lamarck, 1816 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Plumulariidae (Family)
     Acanthella Schmidt, 1862 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Bubarida (Order) > Dictyonellidae (Family)
     Acanthella J.D. Hooker in Bentham & J.D. Hooker, 1867 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Acanthia
 Acanthia Fabricius, 1775 accepted as Cimex Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
 Acanthia Gray, 1825 accepted as Hystrix Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Hystricidae (Family)

Acanthias
 Acanthias Risso, 1827 accepted as Squalus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Squaliformes (Order) > Squalidae (Family)
 Acanthias Müller & Henle, 1839 accepted as Squalus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Squaliformes (Order) > Squalidae (Family)
 Acanthias Leach, 1818 accepted as Squalus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Squaliformes (Order) > Squalidae (Family)
 Acanthias Bonaparte, 1838 accepted as Squalus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Squaliformes (Order) > Squalidae (Family)

Acanthicus
 Acanthicus Laporte, 1832 accepted as Acanthicoides Metcalf, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)
     Acanthicus Agassiz in Spix & Agassiz, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Loricariidae (Family)

Acanthidium
 Acanthidium Lowe, 1839 accepted as Etmopterus Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Squaliformes (Order) > Etmopteridae (Family)
 Acanthidium Montrouzier, 1858 accepted as Polycarmes Stål, 1867 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
 Acanthidium Michener & Griswold, 1994 accepted as Acedanthidium Michener, 2000 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Megachilidae (Family)

Acanthina
     Acanthina K.B. Korde, 1973 † · Plantae (Kingdom) > Rhodophyta (Phylum) > (Class) > Rhodophyta (awaiting allocation) (Order) > Acanthinaceae (Family)
     Acanthina Siebold, 1845 accepted as Acanthina Siebold, 1845 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Acanthina Wiedemann, 1830 accepted as Acanthinomyia Hunter, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
     Acanthina Fischer von Waldheim, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Acanthinoides
     Acanthinoides Matsumura, ? 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
 Acanthinoides Ouchi, 1940 accepted as Ouchimyia Nagatomi & Miyatake, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)

Acanthipodus
     Acanthipodus Bigot, 1890 accepted as Achantipodus Rondani, 1856 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
     Acanthipodus Kertész, 1909 accepted as Achantipodus Rondani, 1856 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Acanthiptera
     Acanthiptera Lioy, 1864 accepted as Acanthiptera Rondani, 1877 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Acanthiptera Rondani, 1877 accepted as Achanthiptera Rondani, 1856 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)

Acanthis
 Acanthis Borkhausen, 1797 accepted as Carduelis Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)
     Acanthis Bechstein, 1803 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Acanthis de Serres, 1816 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Acanthis Keyserling & Blasius, 1840 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Acanthisitta
     Acanthisitta Gray, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Acanthisittidae (Family)
     Acanthisitta De Lafresnaye, 1842 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Acanthisittidae (Family)

Acanthium
 Acanthium Agassiz, 1846 accepted as Hystrix Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Hystricidae (Family)
     Acanthium Heister ex Fabricius, 1759 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Acanthiza
 Acanthiza Gray, 1847 accepted as Acanthina Fischer von Waldheim, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
     Acanthiza Vigors & Horsfield, 1826 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Acanthizidae (Family)

Acanthobatis
 Acanthobatis Larrazet, 1886 † accepted as Anacanthobatis von Bonde & Swart, 1923 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Anacanthobatidae (Family)
 Acanthobatis accepted as Anacanthobatis von Bonde & Swart, 1923 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Anacanthobatidae (Family)

Acanthobolus
     Acanthobolus Stål, 1870 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Acanthobolus Kützing, 1843 accepted as Endocladia J.G. Agardh, 1841 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Endocladiaceae (Family)

Acanthobothrium
 Acanthobothrium Blanchard, 1849 accepted as Acanthobothrium Van Beneden, 1850 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Tetraphyllidea (Order) > Onchobothriidae (Family)
     Acanthobothrium Van Beneden, 1850 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Tetraphyllidea (Order) > Onchobothriidae (Family)

Acanthobrachys
 Acanthobrachys Lacordaire, 1863 accepted as Acanthobrachis Jekel, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Acanthobrachys Fieber, 1860 accepted as Arbela Stål, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Nabidae (Family)

Acanthobracon
     Acanthobracon Szépligeti, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
     Acanthobracon Kriechbaumer, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Acanthocalyx
     Acanthocalyx (A.P. de Candolle) Van Tieghem, 1909 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dipsacales (Order) > Caprifoliaceae (Family)
     Acanthocalyx Cope, 1895 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Acanthocampa
     Acanthocampa Dyar, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Acanthocampa Packard, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)

Acanthocaris
 Acanthocaris Sim, 1872 accepted as Gastrosaccus Norman, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Mysida (Order) > Mysidae (Family)
     Acanthocaris Peach, 1883 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Leptostraca (Order) > Leptostraca (awaiting allocation) (Family)

Acanthocarpus
 Acanthocarpus Göppert, 1864 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Acanthocarpus J.G.C. Lehmann, 1848 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
     Acanthocarpus Stimpson, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Calappidae (Family)

Acanthocephala
 Acanthocephala Backeberg, 1938 accepted as Parodia Spegazzini, 1923 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)
     Acanthocephala de Laporte, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coreidae (Family)
     Acanthocephala Diesing, 1858 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
     Acanthocephala Koelreuter, 1771 · Animalia (Kingdom) > Acanthocephala (Phylum) > (Class) > (Order) > (Family)

Acanthocephalus
     Acanthocephalus Koelreuther, 1771 · Animalia (Kingdom) > Acanthocephala (Phylum) > Palaeacanthocephala (Class) > Echinorhynchida (Order) > Echinorhynchidae (Family)
 Acanthocephalus Cobbold, 1879 accepted as Gymnorhynchus Rudolphi, 1819 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Trypanorhyncha (Order) > Lacistorhynchidae (Family)
     Acanthocephalus A. von Frantzius, 1848 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Actinocephalidae (Family)
     Acanthocephalus Tilesius, 1818 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Acanthocephalus Döderlein in Steindachner & Döderlein, 1883 accepted as Doederleinia Steindachner in Steindachner & Döderlein, 1883 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acropomatidae (Family)
     Acanthocephalus Qiu, 1983 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Acanthocephalus Karelin & Kirilov, 1842 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Acanthocera
     Acanthocera Melichar, 1915 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Derbidae (Family)
     Acanthocera Macquart, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)

Acanthoceras
 Acanthoceras Kützing, 1842 accepted as Ceramium Roth, 1797 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Ceramiaceae (Family)
     Acanthoceras H. Honigmann, 1909 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Chaetocerotales (Order) > Chaetocerotaceae (Family)
     Acanthoceras Neumayr, 1875 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Acanthoceratidae (Family)

Acanthocercus
     Acanthocercus Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Agamidae (Family)
 Acanthocercus Schoedler, 1846 accepted as Acantholeberis Lilljeborg, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Diplostraca (Order) > Macrothricidae (Family)
     Acanthocercus Liévin, 1848 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Acanthocerus
 Acanthocerus Macleay, 1819 accepted as Ceratocanthus White, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)
     Acanthocerus Palisot de Beauvois, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coreidae (Family)
 Acanthocerus Germar, 1843 accepted as Cloeotus Germar, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)

Acanthochaetes
 Acanthochaetes Leach in Risso, 1826 accepted as Acanthochitona Gray, 1821 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Acanthochitonida (Order) > Acanthochitonidae (Family)
 Acanthochaetes Gray in Dieffenbach, 1843 accepted as Acanthochaetes Gray in Dieffenbach, 1843 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Chitonidae (Family)

Acanthochila
 Acanthochila Mörch, 1868 accepted as Cadlina Bergh, 1879 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Cadlinidae (Family)
 Acanthochila Stål, 1873 accepted as Acanthocheila Stål, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tingidae (Family)

Acanthochirus
 Acanthochirus Peters, 1861 accepted as Cercophonius Peters, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Bothriuridae (Family)
 Acanthochirus Oppel, 1862 † accepted as Acanthochirana Strand, 1928 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Aegeridae (Family)

Acanthochiton
 Acanthochiton Iredale, 1915 accepted as Acanthochitona Gray, 1821 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Acanthochitonida (Order) > Acanthochitonidae (Family)
 Acanthochiton Herrmannsen, 1846 accepted as Acanthochitona Gray, 1821 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Acanthochitonida (Order) > Acanthochitonidae (Family)
 Acanthochiton J. Torrey in Sitgreaves, 1853 accepted as Amaranthus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Acanthochitus
 Acanthochitus Herrmannsen, 1846 accepted as Acanthochitus Herrmannsen, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Acanthochitonida (Order) > Acanthochitonidae (Family)
     Acanthochitus Philippi, 1844 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Acanthochondria
 Acanthochondria Weber-van Bosse, 1910 accepted as · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)
     Acanthochondria Oakley, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Chondracanthidae (Family)

Acanthochromis
     Acanthochromis Gill, 1863 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Pomacentridae (Family)
     Acanthochromis Bleeker, 1877 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Pomacentridae (Family)

Acanthochrysis
 Acanthochrysis W. Conrad, 1931 accepted as Chromulina L. Cienkowsky, 1870 · Chromista (Kingdom) > Ochrophyta (Phylum) > Chrysophyceae (Class) > Chromulinales (Order) > Chromulinaceae (Family)
     Acanthochrysis Haupt, 1956 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Acanthocinus
     Acanthocinus Guérin-Méneville, 1826 accepted as Acanthocinus Dejean, 1821 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Acanthocinus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Acanthocladia
 Acanthocladia Ruprecht, 1851 accepted as Endocladia J.G. Agardh, 1841 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Endocladiaceae (Family)
     Acanthocladia King, 1849 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Fenestrida (Order) > Fenestellidae (Family)
     Acanthocladia Ardissone, 1886 (uncertain)· Plantae (Kingdom) > Rhodophyta (Phylum) > (Class) > Rhodophyta (awaiting allocation) (Order) > Rhodophyceae incertae sedis (Family)

Acanthocladium
     Acanthocladium Mitten, 1878 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnales (Order) > Sematophyllaceae (Family)
     Acanthocladium Allman, 1883 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Acanthocladium F. von Mueller, 1861 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Acanthocladus
 Acanthocladus Klotzsch ex Hasskarl, 1864 accepted as Polygala Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Polygalaceae (Family)
 Acanthocladus Carus, 1883 accepted as Acanthocladus Carus, 1883 · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Acanthocladus G.X. Yang in G.X. Yang et al., 2006 † accepted as Gigantocladus A.B. Doweld, 2012 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Gigantopteridales (Order) > Emplectopteridaceae (Family)

Acanthoclinus
 Acanthoclinus Mocquard, 1885 accepted as Paraclinus Mocquard, 1888 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Labrisomidae (Family)
     Acanthoclinus Jenyns, 1841 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Plesiopidae (Family)

Acanthocnema
 Acanthocnema A. Costa in O. Costa, 1859 accepted as Acanthocnema A. Costa in O. Costa, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Acanthocnema Becker, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Scathophagidae (Family)

Acanthocnemis
     Acanthocnemis Blanchard in Gay, 1852 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Acanthocnemis Signoret, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Acanthocnemis Hawle & Corda, 1847 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Acanthococcus
     Acanthococcus J.D. Hooker & W.H. Harvey, 1845 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Cystocloniaceae (Family)
     Acanthococcus Kiritshenko, 1936 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Acanthococcus Lagerheim, 1883 accepted as Glochiococcus G.B. De Toni in G.B. De Toni & D. Levi, 1888 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Neochloridaceae (Family)
     Acanthococcus Signoret, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Eriococcidae (Family)

Acanthocoryphus
 Acanthocoryphus Roewer, 1953 accepted as Chilon Sørensen, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Assamiidae (Family)
     Acanthocoryphus Karny, 1907 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Acanthocyathus
 Acanthocyathus Milne-Edwards & Haime, 1848 accepted as Caryophyllia Lamarck, 1801 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Caryophylliidae (Family)
 Acanthocyathus Bedford, 1934 † accepted as Acanthocyathus Bedford, 1934 † · Animalia (Kingdom) > Porifera (Phylum) > Archaeocyatha (Class) > Acanthinocyathida (Order) > Acanthinocyathidae (Family)

Acanthocyclus
 Acanthocyclus Dybowski, 1873 † accepted as Rhabdocyclus Lang & Smith, 1939 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Palaeocyclidae (Family)
     Acanthocyclus Lucas in H. Milne Edwards & Lucas, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Belliidae (Family)

Acanthocyrtis
 Acanthocyrtis Haeckel, 1887 accepted as Phormostichoartus Campbell, 1951 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Artostrobiidae (Family)
     Acanthocyrtis Haeckel, 1881 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)

Acanthocystis
     Acanthocystis Carter, 1863 · Chromista (Kingdom) > Heliozoa (Phylum) > Centrohelea (Class) > Acanthocystida (Order) > Acanthocystidae (Family)
     Acanthocystis Haeckel, 1896 accepted as Acanthocystis Haeckel, 1896 (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Acanthocystis Bather, 1889 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Acanthocystis (Fayod) Kühner, 1926 accepted as Hohenbuehelia S. Schulzer von Müggenburg in Schulzer von Müggenburg et al., 1866 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Pleurotaceae (Family)
 Acanthocystis Haeckel, 1887 accepted as Acanthocystis Haeckel, 1887 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)

Acanthodactylus
 Acanthodactylus Tessin, 1890 accepted as Trichocerca Lamarck, 1801 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Trichocercidae (Family)
     Acanthodactylus Wiegmann, 1834 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Lacertidae (Family)
     Acanthodactylus Escalera, 1914 accepted as Acontodactylus Desbrochers, 1894 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Acanthodelta
     Acanthodelta Hampson, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Acanthodelta Diaz-Ungria & Gracia-Rodrigo, 1958 accepted as Deltacanthus Diaz-Ungria & Rodrigo, 1958 · Animalia (Kingdom) > Acanthocephala (Phylum) > Eoacanthocephala (Class) > Gyracanthocephala (Order) > Quadrigyridae (Family)

Acanthodera
     Acanthodera Agassiz, 1846 accepted as Acanthoderes Audinet-Serville, 1835 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Acanthodera Westwood, 1847 accepted as Acanthoderus Gray, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Heteronemiidae (Family)

Acanthoderma
     Acanthoderma H. Sydow & P. Sydow, 1917 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Acanthoderma Agassiz, 1835 † accepted as Acanthoderma Agassiz, 1835 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Acanthoderma Agassiz, 1844 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Acanthoderus
     Acanthoderus Laporte de Castelnau, 1840 accepted as Acanthoderus Dejean, 1835 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Acanthoderus Gray, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Heteronemiidae (Family)
 Acanthoderus Gistl, 1848 accepted as Acanthocerus Palisot de Beauvois, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coreidae (Family)
     Acanthoderus Dejean, 1835 accepted as Acanthoderes Audinet-Serville, 1835 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Acanthodes
     Acanthodes Baly, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Acanthodes Fourmanoir & Crosnier, 1964 accepted as Acanthodes Fourmanoir & Crosnier, 1964 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Scorpaenidae (Family)
     Acanthodes Basilewsky, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Acanthodes De Haan in Siebold, 1833 † accepted as Hypothalassia Gistel, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Hypothalassiidae (Family)
     Acanthodes Agassiz, 1833 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Acanthodii (Class) > Acanthodiformes (Order) > Acanthodidae (Family)
     Acanthodes Dybowski, 1873 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Acanthodesma
 Acanthodesma Uhler, 1896 accepted as Polididus Stål, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)
 Acanthodesma Zittel, 1876 † accepted as Acanthodesmia Müller, 1857 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Trissocyclidae (Family)

Acanthodesmia
     Acanthodesmia Müller, 1857 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Trissocyclidae (Family)
     Acanthodesmia V.D. Prynada, 1962 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Acanthodis
     Acanthodis Audinet-Serville, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Acanthodis Miller in Absolom, 1933 † accepted as Acanthodis Miller in Absolom, 1933 † · Animalia (Kingdom) > Chordata (Phylum) > Acanthodii (Class) > Acanthodiformes (Order) > Acanthodidae (Family)

Acanthodiscus
     Acanthodiscus Pantocsek, 1892 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)
     Acanthodiscus Uhlig, 1905 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Berriasellidae (Family)
     Acanthodiscus MacCallum, 1918 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
 Acanthodiscus Volkmer-Ribeiro, 1996 accepted as Racekiela Bass & Volkmer-Ribeiro, 1998 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Spongillida (Order) > Spongillidae (Family)

Acanthodium
     Acanthodium Mitten, 1868 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnales (Order) > Sematophyllaceae (Family)
 Acanthodium Delile, 1813-1814 accepted as Blepharis A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Acanthodon
     Acanthodon Guérin-Méneville, 1838 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Acanthodon von Meyer, 1843 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Acanthodon Weise, 1880 accepted as Gonioctena Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Acanthodus
     Acanthodus Furnish, 1938 † · Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodonta (awaiting allocation) (Order) > (Family)
     Acanthodus Rafinesque, 1814 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Acanthoglossa
 Acanthoglossa Motschoulsky, 1860 accepted as Zyras Stephens, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Acanthoglossa Kraatz, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydroscaphidae (Family)

Acanthognathus
 Acanthognathus Duncker, 1912 accepted as Doryrhamphus Kaup, 1856 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Syngnathiformes (Order) > Syngnathidae (Family)
     Acanthognathus Mayr, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)

Acanthogonyaulax
     Acanthogonyaulax (Kofoid) Graham, 1942 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacaceae (Family)
 Acanthogonyaulax W.A.S. Sarjeant, 1966 † accepted as Acanthaulax Sarjeant, 1968 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacaceae (Family)

Acanthograptus
 Acanthograptus Lapworth, 1881 † accepted as Acanthograptus Lapworth, 1881 † · Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Graptolithina (awaiting allocation) (Order) > Graptolithina (awaiting allocation) (Family)
 Acanthograptus Tsegelnjuk, 1976 † accepted as Bugograptus Tsegelnjuk, 2001 † · Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Graptoloidea (Order) > Monograptidae (Family)
     Acanthograptus Spencer, 1878 † · Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Dendroidea (Order) > Acanthograptidae (Family)

Acantholepis
 Acantholepis Newberry, 1875 † accepted as Eczematolepis Miller, 1892 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Ptyctodontida (Order) > Ptyctodontidae (Family)
     Acantholepis Mayr, 1861 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)
 Acantholepis Krøyer, 1846 accepted as Argentina Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Argentiniformes (Order) > Argentinidae (Family)
 Acantholepis † accepted as Acanthalepis M'Coy in Griffith, 1846 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Acantholepis Lessing, 1831 accepted as Echinops Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Acantholepis Pyanovska & Aleksandro in Pyanovskaya, 1989 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodonta (awaiting allocation) (Order) > (Family)

Acantholithus
     Acantholithus Lindström, 1899 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Tabulata (Order) > Heliolitidae (Family)
 Acantholithus Stimpson, 1858 accepted as Paralomis White, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Lithodidae (Family)

Acantholobivia
 Acantholobivia Backeberg, 1942 accepted as Echinopsis Zuccarini, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)
 Acantholobivia Y. Ito, 1957 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)

Acantholoma
 Acantholoma Castelnau, 1843 † accepted as Leonaspis Richter, 1917 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Lichida (Order) > Selenopeltidae (Family)
 Acantholoma Gaudichaud-Beaupré ex Baillon, 1866 accepted as Pachystroma J. Müller Arg., 1865 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Acantholoma Stål, 1867 accepted as Acantholomidea Sailer, 1945 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Scutelleridae (Family)
 Acantholoma Herzog, 1926 accepted as Bryoacantholoma W. Schultze-Motel, 1963 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryales (Order) > Spiridentaceae (Family)

Acantholonche
     Acantholonche Haeckel, 1881 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)
     Acantholonche Popofsky, 1904 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Acantholophus
     Acantholophus Boisduval, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Acantholophus Dejean, 1834 accepted as Acantholophus Boisduval, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Acantholophus Guérin-Méneville, 1838 accepted as Acantholophus Boisduval, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Acantholophus Koch, 1839 accepted as Lacinius Thorell, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Phalangiidae (Family)

Acanthomera
     Acanthomera Wiedemann, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Pantophthalmidae (Family)
     Acanthomera Montrouzier, 1864 accepted as Montrouzierellus Kirkaldy, 1908 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
     Acanthomera Latreille in Bory, 1828 accepted as Psorodes Dejean, 1834 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Acanthomerus
 Acanthomerus Wollaston, 1871 accepted as Acanthinomerus Boheman, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Acanthomerus Agassiz, 1846 accepted as Acanthomera Latreille in Bory, 1828 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Acanthomerus Guérin, 1834 accepted as Acanthomera Latreille in Bory, 1828 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Acanthomerus Schönherr, 1843 accepted as Australafer Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Acanthometron
     Acanthometron Popofsky, 1904 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Acanthometron Haeckel, 1887 · Chromista (Kingdom) > Retaria (Phylum) > Acantharea (Class) > Arthracanthida (Order) > Acanthometridae (Family)

Acanthomuricea
     Acanthomuricea Hentschel, 1903 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Astrogorgiidae (Family)
     Acanthomuricea Thomson & Henderson, 1906 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Acanthomys
 Acanthomys Lesson, 1842 accepted as Acomys Geoffroy, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)
 Acanthomys Gray, 1867 accepted as Rattus Fischer de Waldheim, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)
 Acanthomys Tokuda, 1941 accepted as Tokudaia Kuroda, 1943 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)
 Acanthomys Gray, 1843 accepted as Rattus Fischer de Waldheim, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)

Acanthonema
 Acanthonema J.G. Agardh, 1846 accepted as Camontagnea Pujals, 1981 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Palmariales (Order) > Rhodothamniellaceae (Family)
     Acanthonema J.D. Hooker, 1862 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
     Acanthonema Grabau, 1909 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca incertae sedis (Class) > Gastropoda/Monoplacophora incertae sedis (Order) > Euomphalidae (Family)

Acanthoneura
 Acanthoneura Stein, 1919 accepted as Syllimnophora Speiser, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
 Acanthoneura Schiner, 1868 accepted as Acanthonevra Macquart, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Acanthonia
 Acanthonia Wasmann, 1918 accepted as Gapia Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Acanthonia Haeckel, 1881 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)
     Acanthonia Popofsky, 1904 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Acanthoniscus
     Acanthoniscus Kinahan, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Armadillidae (Family)
 Acanthoniscus Sars, 1879 accepted as Iolanthe Beddard, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Acanthaspidiidae (Family)
     Acanthoniscus White, 1847 accepted as Acanthoniscus Kinahan, 1859 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Armadillidae (Family)

Acanthonotus
 Acanthonotus Goldfuss, 1809 accepted as Tachyglossus Illiger, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Monotremata (Order) > Tachyglossidae (Family)
 Acanthonotus Koch, 1848 accepted as Syleus Thorell, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Sclerosomatidae (Family)
 Acanthonotus Ross in Ross, 1835 accepted as Acanthonotozoma Boeck, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Acanthonotozomatidae (Family)
 Acanthonotus Bloch & Schneider, 1801 accepted as Notacanthus Bloch, 1788 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Notacanthiformes (Order) > Notacanthidae (Family)
 Acanthonotus Taczanowski, 1872 accepted as Acentroscelus Simon, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Thomisidae (Family)
 Acanthonotus Nalepa, 1889 accepted as Tegonotus Nalepa, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Eriophyidae (Family)
 Acanthonotus Tickell in Day, 1888 accepted as Mystacoleucus Günther, 1868 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Acanthonotus Bentham in W.J. Hooker, 1849 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Acanthonotus Koch, 1839 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Sclerosomatidae (Family)
 Acanthonotus Buckton, 1901 accepted as Acanthonotus Buckton, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Acanthonotus Cuvier, 1800 accepted as Mystacoleucus Günther, 1868 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Acanthonotus Gray, 1830 accepted as Ailia Gray, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ailiidae (Family)
 Acanthonotus Swainson in Richardson, 1832 accepted as Acanthonotus Swainson in Richardson, 1832 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Acanthonyx
     Acanthonyx Latreille, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Epialtidae (Family)
 Acanthonyx Hampson, 1902 accepted as Ctenusa Hampson, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Acanthopale
     Acanthopale C.B. Clarke in Thiselton-Dyer, 1899 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
     Acanthopale San Martín, 1986 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Chrysopetalidae (Family)

Acanthopalpus
     Acanthopalpus Ausserer, 1871 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Acanthopalpus Makarova, 1978 accepted as Makarovana Kocak & Kemal, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Halacaridae (Family)

Acanthophaena
 Acanthophaena Blackwelder, 1952 accepted as Phanerota Casey, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Acanthophaena Cameron, 1934 accepted as Phanerota Casey, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Acanthophallus
 Acanthophallus Lühe, 1903 accepted as Echinophallus Schumacher, 1914 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Bothriocephalidea (Order) > Echinophallidae (Family)
 Acanthophallus Coiffait, 1965 accepted as Mesotyphlus Coiffait, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Acanthophallus Coiffait, 1956 accepted as Xantholinus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Acanthophallus Cope, 1893 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Acanthopharynx
     Acanthopharynx Marion, 1870 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Desmodorida (Order) > Desmodoridae (Family)
 Acanthopharynx Reisinger, 1924 accepted as · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Typhloplanidae (Family)

Acanthophila
     Acanthophila Heinemann, 1870 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Acanthophila Duda, 1924 accepted as Spinulophila Duda, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Drosophilidae (Family)

Acanthophlebia
     Acanthophlebia Towns, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Leptophlebiidae (Family)
     Acanthophlebia Clarke, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Leptophlebiidae (Family)

Acanthophora
     Acanthophora J.V.F. Lamouroux, 1813 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)
     Acanthophora Sollas, 1873 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Astrophorida (awaiting allocation) (Family)
 Acanthophora Borgmeier, 1922 accepted as Acanthophorides Borgmeier, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Phoridae (Family)
 Acanthophora Merrill, 1918 accepted as Aralia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)
 Acanthophora Hulst, 1896 accepted as Acanthotoca Fletcher, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Acanthophorus
     Acanthophorus Audinet-Serville, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Acanthophorus Strohmeyer, 1910 accepted as Peronophorus Strohmeyer, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Acanthophorus Linstow, 1876 accepted as Tetrameres Creplin, 1846 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Tetrameridae (Family)

Acanthophrys
     Acanthophrys A. Milne-Edwards, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Epialtidae (Family)
 Acanthophrys Loman, 1902 accepted as Acanthophrysella Strand, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Assamiidae (Family)

Acanthophthalmus
 Acanthophthalmus van Hasselt, 1823 accepted as Cobitis Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cobitidae (Family)
 Acanthophthalmus Montrouzier, 1855 accepted as Pseudozaena Laporte, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Acanthophyllia
     Acanthophyllia Guo, 1976 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Mussidae (Family)
 Acanthophyllia Wells, 1937 accepted as Cynarina Brüggemann, 1877 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Mussidae (Family)

Acanthophyllum
     Acanthophyllum D.D. Ramteke & D.K. Kapgate, 2014 † accepted as Kapgateophyllum U.B. Deshmukh, 2021 † (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
     Acanthophyllum C.A. Meyer, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)
     Acanthophyllum Dybowski, 1873 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Ptenophyllidae (Family)
     Acanthophyllum W.J. Hooker & Arnott in W.J. Hooker, 1835 accepted as Nassauvia Commerson ex A.L. Jussieu, 1789 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Acanthophyton
 Acanthophyton J.W. Dawson, 1862 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Acanthophyton Lessing, 1832 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Acanthopis
 Acanthopis accepted as Acanthopus Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces incertae sedis (Family)
 Acanthopis Gray, 1825 accepted as Acanthophis Daudin in Sonnini, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)

Acanthopleura
     Acanthopleura Engel in Lindner, 1927 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Acanthopleura Guilding, 1829 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Chitonidae (Family)
     Acanthopleura K.H.E. Koch, 1849 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Acanthopleurus
     Acanthopleurus Egerton, 1841 † accepted as Acanthopleurus Agassiz, 1844 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Tetraodontiformes (awaiting allocation) (Family)
     Acanthopleurus Agassiz, 1844 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Tetraodontiformes (awaiting allocation) (Family)

Acanthoplites
     Acanthoplites Sinzow, 1907 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
 Acanthoplites Douvillé, 1912 † accepted as Acanthohoplites Sinzow, 1907 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Deshayesitidae (Family)

Acanthopora
 Acanthopora Verrill, 1864 † accepted as Echinopora Lamarck, 1816 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Merulinidae (Family)
     Acanthopora Young & Young, 1876 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
     Acanthopora Valiukevičius, 2003 † · Animalia (Kingdom) > Chordata (Phylum) > Acanthodii (Class) > Ischnacanthiformes (Order) > Ischnacanthidae (Family)
 Acanthopora Moseley, 1876 accepted as Stellapora Cairns, 1983 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Stylasteridae (Family)
     Acanthopora d'Orbigny, 1849 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Cyclostomatida (awaiting allocation) (Family)

Acanthopsilus
     Acanthopsilus Kieffer in André, 1908 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Acanthopsilus Portevin, 1914 accepted as Nicrophorus Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Silphidae (Family)

Acanthopsis
 Acanthopsis van Hasselt in Férussac, 1824 accepted as Cobitis Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cobitidae (Family)
 Acanthopsis Agassiz, 1832 † accepted as Cobitis Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cobitidae (Family)
     Acanthopsis W.H. Harvey, 1842 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Acanthopsylla
     Acanthopsylla Jordan & Rothschild, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Pygiopsyllidae (Family)
     Acanthopsylla Nordberg, 1935 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Siphonaptera (awaiting allocation) (Family)

Acanthoptera
     Acanthoptera Popofsky, 1904 accepted as Acanthoptera Popofsky, 1904 (junior homonym)· Chromista (Kingdom) > Retaria (Phylum) > Acantharea (Class) > Arthracanthida (Order) > Lithopteridae (Family)
     Acanthoptera Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Acanthopterus
 Acanthopterus Guérin-Méneville, 1844 accepted as Purpuricenus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Acanthopterus Gray, 1832 accepted as Acanthoptera Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Acanthopterus Faust, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Acanthopus
 Acanthopus Vernet, 1877 accepted as Acanthopus Vernet, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Cytherideidae (Family)
 Acanthopus De Haan, 1833 accepted as Percnon Gistel, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Grapsidae (Family)
     Acanthopus Dahl, 1823 accepted as Accanthopus Dejean, 1821 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Acanthopus Oken, 1816 accepted as Acanthopus Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces incertae sedis (Family)
 Acanthopus Giebel, 1872 accepted as Acanthopus Giebel, 1872 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Acanthopus Latreille in Cuvier, 1829 accepted as Accanthopus Dejean, 1821 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Acanthopus Münster, 1839 accepted as Acanthopus Münster, 1839 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Acanthopus Klug, 1807 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Acanthopygus
     Acanthopygus Montrouzier, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Acanthopygus Deyrolle, 1864 accepted as Geralius Harold, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Acanthopyrgus
     Acanthopyrgus Descamps & Wintrebert, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Pyrgomorphidae (Family)
     Acanthopyrgus Handfield, 1967 † · Animalia (Kingdom) > Porifera (Phylum) > Archaeocyatha (Class) > Capsulocyathida (Order) > Fransuasaecyathidae (Family)

Acanthorhinus
 Acanthorhinus Agassiz, 1846 accepted as Acantharhinus Schönherr, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
 Acanthorhinus Blainville, 1816 accepted as Squalus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Squaliformes (Order) > Squalidae (Family)

Acanthorhipsalis
 Acanthorhipsalis M. Kimnach, 1983 accepted as Lepismium Pfeiffer, 1835 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)
 Acanthorhipsalis (K. Schumann) N.L. Britton & J.N. Rose, 1923 accepted as Lepismium Pfeiffer, 1835 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)

Acanthorhynchia
     Acanthorhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)
     Acanthorhynchia Buckman, 1914 † accepted as Acanthorhynchia Buckman, 1917 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)

Acanthorhynchus
     Acanthorhynchus Gould, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Meliphagidae (Family)
 Acanthorhynchus Shear, 1907 accepted as Physalospora Niessl, 1876 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Xylariales (Order) > Hyponectriaceae (Family)
     Acanthorhynchus Diesing, 1850 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)

Acanthoscelis
     Acanthoscelis Dejean, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Acanthoscelis Dietz, 1897 accepted as Acanthoscelidius · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Acanthoscelis Warren, 1901 accepted as Xanthisthisa Speiser, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Acanthoscelis Latrielle, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Acanthosentis
     Acanthosentis Podder, 1941 (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)
 Acanthosentis Verma & Datta, 1929 accepted as Acanthogyrus Thapar, 1927 · Animalia (Kingdom) > Acanthocephala (Phylum) > Eoacanthocephala (Class) > Gyracanthocephala (Order) > Quadrigyridae (Family)

Acanthosoma
 Acanthosoma Mayer, 1844 accepted as Onesia Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)
     Acanthosoma Curtis, 1824 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Acanthosomatidae (Family)
     Acanthosoma Ross in Ross, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Sergestoidea incertae sedis (Family)
     Acanthosoma Claus, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Acanthosoma DeKay, 1842 accepted as Mola Koelreuter, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Molidae (Family)

Acanthosphaera
     Acanthosphaera Duan, 1984 † accepted as Acanthosphaera Duan, 1984 † (junior homonym)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)
 Acanthosphaera Warburg, 1907 accepted as Naucleopsis Miquel in C.F.P. Martius, 1853 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Moraceae (Family)
     Acanthosphaera S.N. Naumova, 1968 † accepted as Acanthosphaera S.N. Naumova, 1968 † (junior homonym)· Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)
     Acanthosphaera Lemmermann, 1899 · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Chlorellaceae (Family)
     Acanthosphaera Ehrenberg, 1858 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Actinommidae (Family)

Acanthospira
 Acanthospira Weller, 1914 † accepted as Acanthospirina Schuchert & Le Vene, 1929 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Gerkispiridae (Family)
     Acanthospira Schewiakoff, 1926 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Acantharea (Class) > Holacanthida (Order) > Acanthocollidae (Family)
     Acanthospira Reinsch, 1877 accepted as Acanthospira Reinsch, 1877 (nomen nudum)· Chromista (Kingdom) > Retaria (Phylum) > Acantharea (Class) > Holacanthida (Order) > Acanthocollidae (Family)

Acanthospora
     Acanthospora Léger, 1892 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Actinocephalidae (Family)
     Acanthospora K.P.J. Sprengel, 1817 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)

Acanthostethus
 Acanthostethus Herre, 1939 accepted as Gulaphallus Herre, 1925 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Atheriniformes (Order) > Phallostethidae (Family)
     Acanthostethus Smith, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)

Acanthostigmella
 Acanthostigmella Rick, 1933 accepted as Acanthostigma De Notaris, 1863 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Tubeufiales (Order) > Tubeufiaceae (Family)
     Acanthostigmella F. von Höhnel, 1905 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Tubeufiales (Order) > Tubeufiaceae (Family)

Acanthostoma
     Acanthostoma Fischer-Waldheim, 1813 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Acanthostoma Credner, 1883 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Acanthostoma Kriechbaumer, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Acanthostoma Theissen, 1912 accepted as Phaeodimeriella Spegazzini, 1908 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Pseudoperisporiaceae (Family)

Acanthotheca
 Acanthotheca F.E. Clements & Shear, 1931 accepted as Acanthotheciella F. von Höhnel, 1911 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariomycetes incertae sedis (Order) > Sordariomycetes incertae sedis (Family)
     Acanthotheca Vendrasco, Kouchinsky, Porter & Fernandez, 2011 † · Animalia (Kingdom) > Mollusca (Phylum) > Helcionelloida (Class) > Helcionelliformes (Order) > Stenothecidae (Family)
     Acanthotheca A.P. de Candolle, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Acanthothecium
 Acanthothecium Spegazzini, 1889 accepted as Ypsilonia J.H. Léveillé, 1846 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariomycetes incertae sedis (Order) > Sordariomycetes incertae sedis (Family)
 Acanthothecium Vainio, 1890 accepted as Acanthothecis Clements, 1909 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Ostropales (Order) > Graphidaceae (Family)

Acanthothorax
     Acanthothorax Gaede, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Acanthothorax Bretfeld & Griegel, 1999 accepted as Acanthoneelidus Bretfeld & Griegel, 2006 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Neelipleona (Order) > Neelidae (Family)
 Acanthothorax A. Costa in O.G. Costa, 1839 accepted as Polytoxus Spinola, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)

Acanthothyris
 Acanthothyris Paetel, 1875 † accepted as Acanthothiris d'Orbigny, 1850 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)
 Acanthothyris Bronn, 1862 † accepted as Acanthothiris d'Orbigny, 1850 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Acanthothirididae (Family)

Acanthotrema
     Acanthotrema Travassos, 1928 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Opisthorchiida (Order) > Heterophyidae (Family)
 Acanthotrema Oshmarin & Parakhin, 1960 accepted as Pandiontrema Oshmarin, 1963 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Opisthorchiida (Order) > Heterophyidae (Family)
 Acanthotrema Baker & Rowe, 1990 accepted as Kermabrissoides Baker, 1998 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Palaeotropidae (Family)
     Acanthotrema A. Frisch, 2006 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Ostropales (Order) > Graphidaceae (Family)

Acanthotyphlus
 Acanthotyphlus Coiffait, 1965 accepted as Mesotyphlus Coiffait, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Acanthotyphlus Coiffait, 1972 accepted as Mesotyphlus Coiffait, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Acanthozoon
 Acanthozoon Heath & McGregor, 1912 accepted as Pseudoceros Lang, 1884 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Pseudocerotidae (Family)
     Acanthozoon Collingwood, 1876 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Pseudocerotidae (Family)

Acanthura
     Acanthura Lindau, 1901 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
     Acanthura Guilding, 1827 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Acanthurus
     Acanthurus Kirby, 1827 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Acanthurus Daudin, 1803 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Acanthurus Agassiz, 1846 accepted as Acanthrus Acharius, 1780 · Animalia (Kingdom) > Nematoda (Phylum) > Nematoda incertae sedis (Class) > Nemata incertae sedis (Order) > Nematoda incertae sedis (Family)
 Acanthurus Eichhoff, 1886 accepted as Diamerus Erichson, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Acanthurus Bertoni, 1901 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Acanthurus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)

Acanthus
 Acanthus Bloch, 1795 accepted as Acanthurus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)
     Acanthus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Acanthus Dumont, 1816 accepted as Carduelis Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)
     Acanthus Gistl, 1834 accepted as Acanthus Gistl, 1834 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Acanthus Van Dyke, 1932 accepted as Athous Eschscholtz in Thon, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Acanthus Lockington, 1877 accepted as Pilumnus Leach, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pilumnidae (Family)

Acanthyllis
 Acanthyllis Burmeister, 1837 accepted as Acanthyllis Burmeister, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Acanthyllis Pomel, 1874 accepted as Anthyllis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Acantodactylus
     Acantodactylus Desbrochers, 1894 accepted as Acontodactylus Desbrochers, 1894 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Acantodactylus accepted as Acanthodactylus Wiegmann, 1834 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Lacertidae (Family)

Acantopsis
     Acantopsis van Hasselt, 1823 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cobitidae (Family)
 Acantopsis Osella, 1977 accepted as Acamptopsis Champion, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Acara
 Acara Heckel, 1840 accepted as Astronotus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cichlidae (Family)
     Acara Walker, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Acarauna
 Acarauna Catesby, 1771 accepted as Acarauna Catesby, 1771 · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces incertae sedis (Family)
 Acarauna Sevastianoff, 1802 accepted as Gomphosus Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Labridae (Family)

Acardia
     Acardia Schinz in Cuvier, 1822 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Acardia Berthold in Latreille, 1827 accepted as Acardia Berthold in Latreille, 1827 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Acardo
 Acardo Bruguière, 1789 accepted as Acardo Bruguière, 1789 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Acardo Swainson, 1840 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Acardo Herrmannsen, 1846 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Acardo Lamarck, 1799 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Acarella
     Acarella Cohn, 1866 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Acarella H. Sydow, 1927 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetidae incertae sedis (Order) > Vizellaceae (Family)

Acarellus
 Acarellus Tatem, 1872 accepted as Acarus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Acaridae (Family)
 Acarellus Westwood, 1870 accepted as Acarus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Acaridae (Family)

Acarna
 Acarna Boehmer in C.G. Ludwig, 1760 accepted as Atractylis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Acarna J. Hill, 1762 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Acarna Stål, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lophopidae (Family)

Acaroceras
 Acaroceras Chen, Qi & Chen in Chen, Zou, Chen & Qi, 1979 † accepted as Novacaroceras Özdikmen, 2013 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ellesmerocerida (Order) > Novacaroceratidae (Family)
     Acaroceras Grandjean, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Microzetidae (Family)

Acaropsis
 Acaropsis Jordan, 1906 accepted as Acaromimus Jordan, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
     Acaropsis Moquin-Tandon, 1863 accepted as Acaropsis Moquin-Tandon, 1863 (taxon inquirendum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Cheyletidae (Family)
 Acaropsis Steindachner, 1875 accepted as Acaronia Myers, 1940 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cichlidae (Family)

Acarotalpa
     Acarotalpa Amerling, 1861 accepted as Acarotalpa Amerling, 1861 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Acarotalpa Volgin, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Acaridae (Family)

Acartiella
     Acartiella Sewell, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Acartiidae (Family)
 Acartiella Steuer, 1934 accepted as Acartia Dana, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Acartiidae (Family)

Acarus
 Acarus De Blainville, 1816 accepted as Acavus de Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Acavidae (Family)
     Acarus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Acaridae (Family)

Acaste
     Acaste Goldfuss, 1843 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Acastidae (Family)
 Acaste Gistl, 1847 accepted as Acaste Gistl, 1847 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Holothuroidea (awaiting allocation) (Order) > Holothuroidea (awaiting allocation) (Family)

Acastea
     Acastea Rafinesque, 1815 accepted as Acastea Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Acastea Yang, 1993 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Parvivaccidae (Family)

Acastopyge
     Acastopyge Tomczykowa & Tomczyk, 1970 † accepted as Acastopyge Tomcyzkowa, 1971 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Phacopida (awaiting allocation) (Family)
     Acastopyge Tomcyzkowa, 1971 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Phacopida (awaiting allocation) (Family)

Acathartus
     Acathartus Grouvelle, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cucujidae (Family)
 Acathartus Fåhraeus in Harold, 1872 accepted as Ossibia Pascoe, 1867 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Acaulon
     Acaulon Müller Hal., 1847 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Funariales (Order) > Gigaspermaceae (Family)
 Acaulon N.E. Brown, 1928 accepted as Aloinopsis Schwantes, 1926 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)

Acca
     Acca O.C. Berg, 1856 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Acca Johnson, 1899 accepted as Aka de Laubenfels, 1936 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Haplosclerida (Order) > Phloeodictyidae (Family)
 Acca Hübner, 1819 accepted as Pantoporia Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Accentor
     Accentor Bechstein, 1795 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Cinclidae (Family)
     Accentor Bechstein, 1802 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Prunellidae (Family)

Accia
 Accia Curtis, 1844 accepted as Sericoides Guérin-Méneville, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Accia A.F.C. Saint-Hilaire, 1840 accepted as Plukenetia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Accola
 Accola Jordan, 1894 accepted as Accolona Strand, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Accola Simon, 1889 accepted as Masteria Koch in Koch (Keyserling), 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Dipluridae (Family)

Aceclostria
 Aceclostria Schaus in Seitz, 1928 accepted as Aceclostria Vuillot, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Mimallonidae (Family)
     Aceclostria Vuillot, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Mimallonidae (Family)

Acelis
 Acelis Diesing, 1862 accepted as Acmostomum Schmarda, 1859 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Prolecithophora (Order) > Plagiostomidae (Family)
 Acelis Plehn, 1896 accepted as Plehnia Bock, 1913 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Plehniidae (Family)

Acemyia
     Acemyia Lioy, 1864 accepted as Acemyia Schiner, 1861 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Acemyia Schiner, 1861 accepted as Acemya Robineau-Desvoidy, 1830 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Acentetus
 Acentetus Scudder, 1897 accepted as Acentetus Scudder, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Acentetus Cabanis & Heine, 1863 accepted as Phaenicophaeus Stephens in Shaw, 1815 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Cuculiformes (Order) > Cuculidae (Family)

Acentra
     Acentra Burrows, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Psychidae (Family)
 Acentra R.A. Philippi, 1870 accepted as Hybanthus N.J. Jacquin, 1760 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Violaceae (Family)

Acentrolophus
     Acentrolophus Nardo, 1827, nom. nud. accepted as Centrolophus Lacepède, 1802 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Centrolophidae (Family)
 Acentrolophus Nardo, 1827 accepted as Centrolophus Lacepède, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Centrolophidae (Family)

Acentroptera
 Acentroptera Baly, 1858 accepted as Acentroptera Guérin-Méneville, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Acentroptera Guérin-Méneville, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Acentroptera Chevrolat in Dejean, 1836 accepted as Acentroptera Guérin-Méneville, 1844 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Acentropus
 Acentropus Curtis, 1834 accepted as Acentria Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Acentropus Westwood, 1835 accepted as Acentria Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Acentrus
 Acentrus Schönherr, 1845 accepted as Acentrus Desmarest, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Acentrus Desmarest, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Acentrus Dejean, 1835 accepted as Acentrus Desmarest, 1839 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Aceosejus
 Aceosejus Chant, 1963 accepted as Aceoseius Sellnick, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Ascidae (Family)
     Aceosejus Sellnick, 1941 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Acephalus
     Acephalus Marques, Canal, Mazel & Baudoin, 1984 (uncertain)· Chromista (Kingdom) > Miozoa (Phylum) > Apicomplexa (awaiting allocation) (Class) > Apicomplexa (awaiting allocation) (Order) > Apicomplexa (awaiting allocation) (Family)
     Acephalus Mandal & Ray, 2013 · Chromista (Kingdom) > Miozoa (Phylum) > (Class) > Eugregarinida (Order) > Acephalidae (Family)

Acera
 Acera Albers, 1850 accepted as Holospira Martens in Albers, 1860 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Urocoptidae (Family)
 Acera Lamarck, 1822 accepted as Philinopsis Pease, 1860 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Aglajidae (Family)
 Acera Jeffreys, 1867 accepted as Akera O. F. Müller, 1776 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Anaspidea (Order) > Akeridae (Family)

Acerana
 Acerana Gray, 1833 accepted as Aracana Gray, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Aracanidae (Family)
 Acerana Kaup, 1855 accepted as Aracana Gray, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Aracanidae (Family)

Aceras
 Aceras R. Brown in W.T. Aiton, 1813 accepted as Orchis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Aceras Locard, 1886 accepted as Akera O. F. Müller, 1776 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Anaspidea (Order) > Akeridae (Family)

Aceratosmia
     Aceratosmia Schmiedeknecht, 1885 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Aceratosmia Tkalcu, 1969 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Aceratus
     Aceratus Endrődi, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Aceratus Prell, 1936 accepted as Aceratus Endrődi, 1969 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Acerbia
     Acerbia Sotavalta, 1963 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Acerbia (P.A. Saccardo) P.A. Saccardo & P. Sydow, 1899 accepted as Rosenscheldia Spegazzini, 1885 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Dothideomycetes incertae sedis (Family)

Acerella
 Acerella Allen, 1971 accepted as Ephacerella Paclt, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Ephemerellidae (Family)
     Acerella Berlese, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Protura (Class) > Acerentomata (Order) > Acerentomidae (Family)

Acerina
     Acerina Rafinesque, 1814 accepted as Acerina Rafinesque, 1814 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Acerina Güldenstädt, 1775 accepted as Gymnocephalus Bloch, 1793 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Percidae (Family)
 Acerina Cuvier, 1816 accepted as Gymnocephalus Bloch, 1793 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Percidae (Family)

Aceriphyllum
     Aceriphyllum W.M. Fontaine, 1889 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliopsida (awaiting allocation) (Order) > (Family)
 Aceriphyllum Engler in Engler & Prantl, 1891 accepted as Mukdenia Koidzumi, 1935 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Saxifragaceae (Family)

Acerites
     Acerites Viviani, 1833 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
 Acerites W. Hisinger, 1837 † accepted as Acerites Viviani, 1833 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)

Acerodon
 Acerodon Wagner in Schreber, 1839 accepted as Acerodon Jourdan, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Pteropodidae (Family)
     Acerodon Jourdan, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Pteropodidae (Family)

Aceropsis
 Aceropsis Stuxberg, 1880 accepted as Arrhis Stebbing, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Oedicerotidae (Family)
 Aceropsis Sars, 1892 accepted as Aceroides Sars, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Oedicerotidae (Family)

Aceros
 Aceros Lang, 1884 accepted as Acerotisa Strand, 1928 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Euryleptidae (Family)
     Aceros Hodgson, 1844 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Bucerotidae (Family)
 Aceros Boeck, 1861 accepted as Arrhis Stebbing, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Oedicerotidae (Family)

Acerota
     Acerota Förster, 1856 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Acerota auctt. (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Platygastridae (Family)

Acerus
     Acerus Dejean, 1833 accepted as Acerus Burmeister, 1847 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Acerus Agassiz, 1846 accepted as Aceros Hodgson, 1844 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Bucerotidae (Family)
 Acerus Michael, 1884 accepted as Tiphys Koch, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Pionidae (Family)
     Acerus Burmeister, 1847 accepted as Aceratus Endrődi, 1969 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Acervularia
     Acervularia Schweigger, 1819 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Acervulariidae (Family)
     Acervularia Lonsdale in Murchison, 1839 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Acervulina
     Acervulina Hanzawa, 1957 † (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Acervulina Schultze, 1854 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Acervulinidae (Family)

Acesta
     Acesta H. Adams & A. Adams, 1858 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Limoida (Order) > Limidae (Family)
 Acesta Strel'tzov, 1973 accepted as Aricidea Webster, 1879 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Cirratulida (Order) > Paraonidae (Family)

Acestra
 Acestra Kner, 1853 accepted as Farlowella Eigenmann & Eigenmann, 1889 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Loricariidae (Family)
 Acestra Römer, 1861 † accepted as Opeamorphus de Laubenfels in Moore, 1955 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Lyssacinosida (awaiting allocation) (Family)
     Acestra Dallas, 1852 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Acestra Bonaparte, 1846 accepted as Nerophis Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Syngnathiformes (Order) > Syngnathidae (Family)

Acestrus
     Acestrus Woodward, 1901 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Perciformes (awaiting allocation) (Family)
     Acestrus Agassiz, 1845 † accepted as Acestrus Woodward, 1901 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Perciformes (awaiting allocation) (Family)

Acestus
     Acestus Haag-Rutenberg, 1875 accepted as Acestophanus Koch, 1950 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Acestus Leidy, 1851 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)

Acetabularia
     Acetabularia J.V.F. Lamouroux, 1812 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Polyphysaceae (Family)
 Acetabularia (Berkeley) Massee, 1893 accepted as Cyphellopus Fayod, 1889 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Bolbitiaceae (Family)

Acetabulum
 Acetabulum Boehmer in Ludwig, 1760 accepted as Acetabularia J.V.F. Lamouroux, 1812 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Polyphysaceae (Family)
     Acetabulum Lamarck, 1816 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Acetosella
 Acetosella O. Kuntze, 1891 accepted as Oxalis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Oxalidaceae (Family)
 Acetosella (Meisner) Fourreau, 1869 accepted as Rumex Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Polygonaceae (Family)

Achaea
 Achaea O. Pickard-Cambridge, 1882 accepted as Achaearanea Strand, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
     Achaea Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Achaemenes
     Achaemenes Bogatchev, 1947 accepted as Bogatshevia Medvedev & Iwan, 2006 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Achaemenes Stål, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cixiidae (Family)

Achaeta
 Achaeta E.P.N. Fournier, 1886 accepted as Calamagrostis Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Achaeta Vejdovský, 1878 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Enchytraeidae (Family)

Achaetothrips
     Achaetothrips Shumsher Singh, 1946 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Thysanoptera (awaiting allocation) (Family)
 Achaetothrips Karny, 1908 accepted as Thrips Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Thripidae (Family)

Achaeus
     Achaeus Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Inachidae (Family)
 Achaeus Erman, 1835 accepted as Bradypus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pilosa (Order) > Bradypodidae (Family)

Achagua
     Achagua Rindge, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Achagua M. R. Campos, 2001 accepted as Eudaniela Pretzmann, 1971 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pseudothelphusidae (Family)

Acharia
     Acharia Thunberg, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Achariaceae (Family)
     Acharia Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Limacodidae (Family)

Acharista
     Acharista Melichar, 1924 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Acharista Emel'yanov, 1968 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Achates
     Achates Stål, 1867 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Achates Gistl, 1834 accepted as Achates Gistl, 1848 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Janthinidae (Family)
 Achates Gistl, 1848 accepted as Janthina Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Janthinidae (Family)

Achatinella
     Achatinella Schlüter, 1838 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Achatinella Swainson, 1828 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Achatinellidae (Family)

Acheles
 Acheles Oudemans, 1903 accepted as Raphignathus Dugès, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Raphignathidae (Family)
 Acheles Cocco, 1832 accepted as Sergestes H. Milne Edwards, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Sergestidae (Family)

Acherontiellina
     Acherontiellina Delamare-Deboutteville, 1948 accepted as Acherontiella Absolon, 1913 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Hypogastruridae (Family)
 Acherontiellina Salmon, 1964 accepted as Acherontiella Absolon, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Hypogastruridae (Family)

Acherusia
     Acherusia Laporte & Gory, 1838 accepted as Mimicoclytrina Bellamy, 2003 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Acherusia Lucas, 1849 accepted as Rocinela Leach, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Aegidae (Family)
     Acherusia Costa, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Acheta
     Acheta Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Gryllidae (Family)
 Acheta Linnaeus, 1758 accepted as Acheta Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Gryllidae (Family)

Achilleum
     Achilleum Münster, 1834 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Achilleum Oken, 1815 accepted as (unavailable name)· Animalia (Kingdom) > Porifera (Phylum) > (Class) > (Order) > (Family)

Achilus
     Achilus Hemsley, 1895 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)
     Achilus Kirby, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Achilidae (Family)

Achimenes
 Achimenes P. Browne, 1756 accepted as Columnea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
     Achimenes Persoon, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
 Achimenes M. Vahl, 1791 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Achistrum
     Achistrum Etheridge, 1881 † · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Apodida (Order) > Apodida (awaiting allocation) (Family)
     Achistrum Hampton, 1958 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Holothuroidea (awaiting allocation) (Order) > Holothuroidea (awaiting allocation) (Family)

Achlaena
     Achlaena Grisebach, 1866 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Achlaena Karsch, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Chroicopteridae (Family)

Achlis
 Achlis Fischer, 1829 accepted as Alces Gray, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)
 Achlis Reichenbach, 1845 accepted as Rangifer Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)

Achlya
     Achlya C.G.D. Nees in Carus, 1823 · Chromista (Kingdom) > Pseudofungi (Phylum) > Oomycetes (Class) > Saprolegniales (Order) > Saprolegniaceae (Family)
     Achlya Billberg, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Drepanidae (Family)

Achlys
     Achlys Gistl, 1848 accepted as (nomen dubium)· Protozoa (Kingdom) > Protozoa incertae sedis (Phylum) > (Class) > (Order) > (Family)
 Achlys Agassiz, 1846 accepted as Alces Gray, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)
     Achlys A.P. de Candolle, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Berberidaceae (Family)
     Achlys Gistl, 1848 (uncertain)· Animalia (Kingdom) > Rotifera (Phylum) > Rotifera (awaiting allocation) (Class) > Rotifera (awaiting allocation) (Order) > Rotifera (awaiting allocation) (Family)

Achneria
 Achneria Munro ex Bentham & J.D. Hooker, 1883 accepted as Pentameris Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Achneria Palisot de Beauvois, 1812 accepted as Eriachne R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Achoerus
 Achoerus Vlasenko, 1931 accepted as Metadena Linton, 1910 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Opisthorchiida (Order) > Cryptogonimidae (Family)
     Achoerus Beklemischev, 1914 · Animalia (Kingdom) > Xenacoelomorpha (Phylum) > Acoela (Class) > (Order) > Convolutidae (Family)

Achoeus
 Achoeus Guérin-Méneville, 1844 accepted as Bradypus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pilosa (Order) > Bradypodidae (Family)
 Achoeus Desmarest, 1823 accepted as Achaeus Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Majidae (Family)

Achradocystis
 Achradocystis Haeckel, 1896 † accepted as Achradocystites Volborth, 1870 † · Animalia (Kingdom) > Echinodermata (Phylum) > Paracrinoidea (Class) > Comarocystitida (Order) > Comarocystitida (awaiting allocation) (Family)
     Achradocystis Zittel, 1897 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Achras
 Achras Linnaeus, 1753 accepted as Manilkara Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)
     Achras Waterhouse, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lycidae (Family)

Achrus
     Achrus Dejean, 1821 accepted as Lixus Fabricius, 1801 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Achrus Lindberg, 1924 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Achrysum
     Achrysum A. Gray, 1852 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Achrysum Agassiz, 1846 accepted as Achryson Audinet-Serville, 1833 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Achthosus
     Achthosus Gebien, 1911 accepted as Achthosus Pascoe, 1863 (misapplication)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Achthosus Pascoe, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Achyronia
 Achyronia J.C. Wendland, 1798 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Achyronia A. van Royen ex Linnaeus, 1758 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Acia
 Acia Schreber, 1791 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Chrysobalanaceae (Family)
 Acia P.A. Karsten, 1879 accepted as Mycoacia Donk, 1931 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Meruliaceae (Family)
     Acia McAtee, 1934 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Acianthopsis
 Acianthopsis D.L. Szlachetko, 2002 accepted as Acianthus R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Acianthopsis M.A. Clements & D.L. Jones, 2002 accepted as Acianthus R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Acicula
     Acicula Oken, 1815 accepted as Acicula Oken, 1815 (nomen nudum)· Animalia (Kingdom) > Nemertea (Phylum) > Nemertea (awaiting allocation) (Class) > Nemertea (awaiting allocation) (Order) > Nemertea (awaiting allocation) (Family)
     Acicula Hartmann, 1821 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Aciculidae (Family)
     Acicula Renier, 1807 accepted as Acicula Renier, 1807 (nomen dubium)· Animalia (Kingdom) > Nemertea (Phylum) > Nemertea (awaiting allocation) (Class) > Nemertea (awaiting allocation) (Order) > Nemertea (awaiting allocation) (Family)
     Acicula Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Aciculidae (Family)

Acicularia
     Acicularia Langerhans, 1877 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Typhloscolecidae (Family)
 Acicularia Carus & Gerstaecker, 1875 accepted as Acicularia Carus & Gerstaecker, 1875 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)
     Acicularia d'Archiac, 1837 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Acicularia A. d'Archiac, 1843 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Dasycladaceae (Family)
 Acicularia Monterosato, 1884 accepted as Polygireulima Sacco, 1892 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Eulimidae (Family)

Aciculella
     Aciculella Pia in Hirmer, 1927 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Dasycladaceae (Family)
     Aciculella Vyalov, 1968 † · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Hippocrepinidae (Family)

Aciculina
 Aciculina A. Adams, 1853 accepted as Nassarius Duméril, 1805 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)
 Aciculina Vyalov, 1968 † accepted as Aciculella Vyalov, 1968 † · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Hippocrepinidae (Family)
     Aciculina Westerlund, 1887 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Aciculina Meek, 1871 † accepted as Streptacis Meek, 1871 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Streptacididae (Family)
 Aciculina Deshayes, 1861 † accepted as Eulimella Forbes & MacAndrew, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)

Aciculites
     Aciculites Schmidt, 1879 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Lithistida (Order) > Scleritodermidae (Family)
     Aciculites K.M. Piel, 1971 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Acidalia
     Acidalia Hübner, 1819 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Acidalia Treitschke, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Acidalia Chevrolat in Dejean, 1836 accepted as Helioscopa Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Acideres
     Acideres Guérin-Méneville, 1858 accepted as Acideres Thomson, 1860 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Acideres Thomson, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Acidia
     Acidia Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
 Acidia Bosc, 1816 accepted as Ascidia Linnaeus, 1767 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Ascidiidae (Family)
     Acidia Illiger, 1804 accepted as Akis Herbst, 1799 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Acidiella
 Acidiella Pearcey, 1902 accepted as Ascidiella Roule, 1884 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Ascidiidae (Family)
     Acidiella M. Hujslová & M. Kolařík in Hujslová, Kubátová, Kostovčík & Kolařík, 2012 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Teratosphaeriaceae (Family)
     Acidiella Hendel, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Acidioxantha
 Acidioxantha Hendel, 1915 accepted as Acidoxantha Hendel, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
 Acidioxantha Shiraki, 1933 accepted as Acidoxantha Hendel, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Acidomyces
 Acidomyces B.J. Baker, M.A. Lutz, S.C. Dawson, P.L. Bond & J.F. Banfield, 2004 accepted as Acidomyces B.J. Baker, M.A. Lutz, S.C. Dawson, P.L. Bond & J.F. Banfield ex L. Selbmann, G.S. de Hoog & F. De Leo in Selbmann et al., 2008 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Teratosphaeriaceae (Family)
     Acidomyces B.J. Baker, M.A. Lutz, S.C. Dawson, P.L. Bond & J.F. Banfield ex L. Selbmann, G.S. de Hoog & F. De Leo in Selbmann et al., 2008 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Teratosphaeriaceae (Family)

Acidota
     Acidota Kirby in Stephens, 1829 accepted as Acidota Kirby in Stephens, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Acidota Gistel, 1834 accepted as Amphicoma Latreille, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Glaphyridae (Family)
 Acidota Stephens, 1834 accepted as Acidota Kirby in Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Acidoton
     Acidoton O. Swartz, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Acidoton P. Browne, 1756 accepted as Flueggea Willdenow, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)

Aciella
 Aciella (P.A. Karsten) P.A. Karsten, 1899 accepted as Asterodon Patouillard, 1894 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Hymenochaetales (Order) > Hymenochaetaceae (Family)
 Aciella Van Tieghem, 1894 accepted as Amylotheca Van Tieghem, 1894 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Loranthaceae (Family)

Acilana
 Acilana Khomenko, 1937 † accepted as Acilana Khomenko, 1937 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Acilana Krishtofovich, 1964 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Acilius
     Acilius Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)
 Acilius Rafinesque, 1815 accepted as Atyaephyra de Brito Capello, 1867 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Atyidae (Family)

Acinaces
     Acinaces Gerstaecker, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)
 Acinaces Agassiz, 1846 accepted as Gempylus Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gempylidae (Family)

Acinaria
 Acinaria Donati, 1758 accepted as Sargassum C.A. Agardh, 1820 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Fucales (Order) > Sargassaceae (Family)
     Acinaria Rafinesque, 1819 † accepted as Acinaria Rafinesque, 1819 † (nomen dubium)· Plantae (Kingdom) > Charophyta (Phylum) > Charophyceae (Class) > Charales (Order) > Characeae (Family)

Acineta
     Acineta Ehrenberg, 1834 · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Suctorida (Order) > Acinetidae (Family)
     Acineta J. Lindley, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Acinopus
     Acinopus Sturm, 1826 accepted as Acinopus Sturm, 1826 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Acinopus Dejean, 1821 accepted as Acinopus Dejean, 1821 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Acinopus Latreille in Cuvier, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Aciphylla
 Aciphylla J. Hector, 1886 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Aciphylla J.R. Forster & J.G.A. Forster, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Acis
     Acis Duchassaing & Michelloti, 1860 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Acanthogorgiidae (Family)
     Acis Lesson, 1830-1831 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Acis Chevrolat in Dejean, 1836 accepted as Colasposoma Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Acis Billberg, 1820 accepted as Akis Herbst, 1799 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Acis Berlese, 1883 accepted as Atemnus Berlese, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Pseudoscorpionida (Order) > Atemnidae (Family)
     Acis R.A. Salisbury, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Acitheca
 Acitheca R.S. Currah, 1985 accepted as Aciascus A.B. Doweld, 2013 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Onygenales (Order) > Gymnoascaceae (Family)
     Acitheca W.P. Schimper in W.P. Schimper & Schenk, 1879 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Marattiales (Order) > Marattiaceae (Family)

Aclees
     Aclees Schönherr, 1833 accepted as Aclees Schönherr, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Aclees Schönherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Aclees Dejean, 1835 accepted as Aclees Schönherr, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Aclinia
 Aclinia W. Griffith, 1851 accepted as Dendrobium O. Swartz, 1799 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Aclinia Garthe, 1837 accepted as Actinia Linnaeus, 1767 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actiniidae (Family)

Aclytia
 Aclytia Broun, 1880 accepted as Asilis Broun, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cantharidae (Family)
     Aclytia Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Acmaea
     Acmaea Eschscholtz, 1833 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Patellogastropoda (Order) > Acmaeidae (Family)
     Acmaea Eschscholtz in Kotzebue, 1830 accepted as Acmaea Eschscholtz, 1833 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Patellogastropoda (Order) > Acmaeidae (Family)
 Acmaea Keyserling in Koch (Keyserling), 1882 accepted as Hypoblemum Peckham, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Acmaea Agassiz, 1846 accepted as Acicula Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Patellogastropoda (Order) > Acmaeidae (Family)

Acmella
     Acmella Blanford, 1869 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Assimineidae (Family)
     Acmella L.C.M. Richard in Persoon, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Acmocera
 Acmocera Thomson, 1858 accepted as Acmocera Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Acmocera Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Acmonotus
     Acmonotus McLachlan, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Ascalaphidae (Family)
 Acmonotus Philippi, 1896 accepted as Leptonotus Kaup, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Syngnathiformes (Order) > Syngnathidae (Family)

Acmophyllum
     Acmophyllum Karsch, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)
     Acmophyllum Sytova, 1968 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Ptenophyllidae (Family)

Acoelius
 Acoelius Förster, 1851 accepted as Adelius Haliday, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
 Acoelius Agassiz, 1846 accepted as Adelius Haliday, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Acoelodus
     Acoelodus Ameghino, 1897 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > (Family)
     Acoelodus Ameghino, 1897, nom. nud. † accepted as Acoelodus Ameghino, 1897 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > (Family)

Acoeta
 Acoeta Burmeister, 1837 accepted as Acoetes Audouin & Milne Edwards, 1832 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Acoetidae (Family)
 Acoeta Valenciennes, 1833 accepted as Acoetes Audouin & Milne Edwards, 1832 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Acoetidae (Family)

Acoetes
 Acoetes Agassiz, 1846 accepted as Acetes H. Milne Edwards, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Sergestidae (Family)
     Acoetes Audouin & Milne Edwards, 1832 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Acoetidae (Family)

Acolasta
     Acolasta Meyrick, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
 Acolasta Swinderen, 1822 accepted as Sepedon Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sciomyzidae (Family)

Acolastus
     Acolastus Gerstaecker, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Acolastus Scudder, 1872 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Acolium
 Acolium Trevisan, 1862 accepted as Cyphelium Acharius, 1815 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Caliciaceae (Family)
 Acolium (Acharius) S.F. Gray, 1821 accepted as Cyphelium Acharius, 1815 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Caliciaceae (Family)

Acolpus
 Acolpus Jayne, 1882 accepted as Trogoderma Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
     Acolpus Vachal, 1893 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Acolpus Agassiz, 1846 accepted as Acolpus Agassiz, 1846 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Holothuriida (Order) > Holothuriidae (Family)

Acolus
 Acolus Jukes-Browne, 1913 accepted as Jukesena Iredale, 1915 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
     Acolus Förster, 1856 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)

Acoma
 Acoma Steiner, 1920 accepted as Nemacoma Hope & Murphy, 1972 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Ironida (Order) > Oxystominidae (Family)
     Acoma Casey, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Acoma Casey, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Pleocomidae (Family)
     Acoma Bentham, 1844 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Acomia
     Acomia Diesing, 1848 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Acomia Dujardin, 1841 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Acomus
 Acomus Girard, 1856 accepted as Catostomus Lesueur, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Catostomidae (Family)
     Acomus Reichenbach, 1848 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Acontia
     Acontia Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Acontia Ochsenheimer, 1816 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Acontia Westwood, 1848 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Acontias
 Acontias H.W. Schott in H.W. Schott & Endlicher, 1832 accepted as Xanthosoma H.W. Schott in H.W. Schott & Endlicher, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)
     Acontias Cuvier, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
     Acontias Troost, 1836 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Acontistes
     Acontistes Sundevall, 1836 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Acontistes Burmeister, 1838 accepted as Acontista Saussure, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Acanthopidae (Family)

Acorynus
     Acorynus Schönherr, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
     Acorynus Dejean, 1821 accepted as Mesocordylus Lacordaire, 1866 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Acosmetia
     Acosmetia Stephens, 1829 accepted as Acosmetia Stephens, 1830 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Acosmetia Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Acosmus
     Acosmus Dejean, 1834 accepted as Acosmius Walker, 1858 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ripiphoridae (Family)
 Acosmus Desvaux, 1816 accepted as Aspicarpa L.C. Richard, 1815 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)
 Acosmus Lacordaire, 1859 accepted as Acosmius Walker, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ripiphoridae (Family)

Acosta
 Acosta Loureiro, 1790 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
 Acosta Ruiz & Pavón, 1794 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Polygalaceae (Family)
     Acosta Adanson, 1763 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Acosta Özdikmen, 2012 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Lysianassidae (Family)
 Acosta Müller Hal., 1848 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Hypnaceae (Family)

Acostaea
     Acostaea d'Orbigny, 1851 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Etheriidae (Family)
     Acostaea Schlechter, 1923 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Acotreba
     Acotreba Reitter, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Acotreba Reitter, 1883 accepted as Acotreba Reitter, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Acourtia
     Acourtia Cockerell, 1921 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Acourtia D. Don, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Acra
 Acra Brunner von Wattenwyl, 1878 accepted as Acropsis Uvarov, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Acra Papin, 1973 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)
 Acra Bleeker, 1860 accepted as Labeo Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)

Acraea
     Acraea Hübner, 1819 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)
     Acraea Fabricius, 1808 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Acraea Lindley in Bentham, 1845 accepted as Pterichis Lindley, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Acrantus
     Acrantus Wagler, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Teiidae (Family)
 Acrantus Broun, 1882 accepted as Chaetoptelius Fuchs in Reitter, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Acrasia
     Acrasia Rogenhofer, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Acrasia accepted as Acrasis Van Tieghem, 1880 · Protozoa (Kingdom) > Percolozoa (Phylum) > Heterolobosea (Class) > Acrasida (Order) > Acrasidae (Family)

Acratus
 Acratus Horn, 1867 accepted as Chnaunanthus Burmeister, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Acratus Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Acreagris
     Acreagris Felder, 1874 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Zygaenidae (Family)
     Acreagris Koch in Berendt, 1845 accepted as Acreagris Koch in Berendt, 1845 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Margarodidae (Family)
     Acreagris Koch in Berendt, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Margarodidae (Family)

Acremoniula
     Acremoniula G. Arnaud, 1954 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Dothideomycetes incertae sedis (Family)
     Acremoniula G. Arnaud ex Ciferri, 1962 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Acrenhydrosoma
 Acrenhydrosoma Lang, 1948 accepted as Acrenhydrosoma Lang, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Cletodidae (Family)
     Acrenhydrosoma Lang, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Cletodidae (Family)

Acrida
     Acrida Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Acrida Kirby, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Acridites
     Acridites Germar in v. Münster, 1842 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Acridites Goldenberg, 1873 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Insecta (awaiting allocation) (Order) > Insecta (awaiting allocation) (Family)

Acridium
     Acridium Audinet-Serville, 1831 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
 Acridium Schrank, 1801 accepted as Psophus Fieber, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Pyrgomorphidae (Family)

Acrilla
     Acrilla H. Adams, 1860 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Epitoniidae (Family)
     Acrilla Stål, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)

Acrisius
 Acrisius Desbrochers, 1869 accepted as Hyperomorphus Perris, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Acrisius Stål, 1860 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Acrista
     Acrista Hedley, 1922 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Clathurellidae (Family)
 Acrista O.F. Cook, 1901 accepted as Prestoea J.D. Hooker in Bentham & J.D. Hooker, 1883 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Acrobates
     Acrobates Desmarest, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Diprotodontia (Order) > Acrobatidae (Family)
 Acrobates Bonaparte, 1850 accepted as Acrobates Bonaparte, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Acrobela
     Acrobela Förster, 1862 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Acrobela Thiele, 1925 accepted as Microdrillia Casey, 1903 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Borsoniidae (Family)

Acrobothrium
 Acrobothrium Olsson, 1872 accepted as Cyathocephalus Kessler, 1868 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Spathebothriidea (Order) > Acrobothriidae (Family)
 Acrobothrium Baer, 1948 accepted as Acanthobothrium Van Beneden, 1850 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Tetraphyllidea (Order) > Onchobothriidae (Family)

Acrobotrys
     Acrobotrys K. Schumann & K. Krause, 1908 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Acrobotrys Haeckel, 1881 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Cannobotryidae (Family)

Acrocarpus
 Acrocarpus Schenk, 1867 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)
 Acrocarpus C.G.D. Nees in C.F.P. Martius, 1842 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
 Acrocarpus Kützing, 1843 accepted as Gelidiella Feldmann & G. Hamel, 1934 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gelidiales (Order) > Gelidiaceae (Family)
     Acrocarpus R. Wight ex Arnott, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Acrocassis
 Acrocassis Spaeth, 1924 accepted as Acrocassis Spaeth, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Acrocassis Spaeth, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Acrocephalus
 Acrocephalus Bentham, 1829 accepted as Platostoma Palisot de Beauvois, 1808 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Acrocephalus Naumann, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Sylviidae (Family)

Acrocera
 Acrocera Gistl, 1848 accepted as Acrocera Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
     Acrocera Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Acroceridae (Family)

Acrochaete
 Acrochaete A. Peter, 1930 accepted as Setaria Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Acrochaete N. Pringsheim, 1863 accepted as Ulvella P.L. Crouan & H.M. Crouan, 1859 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvellaceae (Family)

Acrochasma
     Acrochasma Reuss, 1860 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Acrochasma O. Korshikov, 1953 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Characiaceae (Family)

Acrochordiceras
     Acrochordiceras Hyatt in Meek, 1877 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)
     Acrochordiceras Waagen, 1895 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Acrocladium
     Acrocladium Mitten, 1869 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Acrocladiaceae (Family)
 Acrocladium Petrak, 1949 accepted as Periconiella P.A. Saccardo in P.A. Saccardo & Berlese, 1885 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Mycosphaerellaceae (Family)

Acrocoris
     Acrocoris Jakolev, 1876 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
     Acrocoris Hahn, 1836 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Acrocosmia
     Acrocosmia Koken, 1897 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Acrocosmia Koken, 1896 † accepted as Acrocosmia Koken, 1897 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)

Acrocystis
     Acrocystis Zanardini, 1872 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)
 Acrocystis Ellis & B. Halsted ex B. Halsted, 1890 accepted as Cystospora J.E. Elliot, 1916 · Chromista (Kingdom) > Cercozoa (Phylum) > Phytomyxea (Class) > Plasmodiophorida (Order) > Plasmodiophoridae (Family)

Acrodactyla
     Acrodactyla Stafford, 1904 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
     Acrodactyla Haliday, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Acrodon
 Acrodon Zimmermann, 1832 accepted as Amara Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Acrodon N.E. Brown, 1927 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)

Acroelytrum
     Acroelytrum Mayr, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coreidae (Family)
 Acroelytrum Steudel, 1846 accepted as Lophatherum A.T. Brongniart in Duperrey, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Acrognathus
     Acrognathus Agassiz in Mantell, 1836 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Myctophiformes (Order) > Myctophidae (Family)
 Acrognathus Erichson, 1839 accepted as Manda Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Acrogonia
     Acrogonia Stål, 1869 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Acrogonia Kriechbaumer, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Acrographinotus
     Acrographinotus Roewer, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)
 Acrographinotus Holmgren, 1916 accepted as Acrographinotus Roewer, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)

Acrolasia
     Acrolasia Enderlein, 1927 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Acrolasia K.B. Presl, 1831 accepted as Mentzelia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cornales (Order) > Loasaceae (Family)

Acrolejeunea
 Acrolejeunea Stephani, 1890 accepted as Schiffneriolejeunea Verdoorn, 1933 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Porellales (Order) > Lejeuneaceae (Family)
     Acrolejeunea (R. Spruce) V. Schiffner, 1893 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Porellales (Order) > Lejeuneaceae (Family)

Acrolepis
     Acrolepis Schrader, 1832 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
     Acrolepis Agassiz, 1833 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Palaeonisciformes (Order) > Acrolepididae (Family)

Acroleptes
     Acroleptes Bonaparte, 1854 accepted as Acroleptes Bonaparte, 1854 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Acroleptes Cabanis, 1861 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Acroleptus
 Acroleptus Cabanis, 1861 accepted as Acroleptus Cabanis, 1861 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Acroleptus Bourgeois, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lycidae (Family)

Acrolister
 Acrolister Bickhardt, 1914 accepted as Acrolister Bickhardt, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
     Acrolister Bickhardt, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Acrolithus
     Acrolithus Liu & Li in Liu et al., 2022 accepted as Xilithus Liu & Li, 2023 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Phrurolithidae (Family)
     Acrolithus Freytag & Ma, 1988 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Acrolobus
 Acrolobus Klotzsch, 1857 accepted as Heisteria N.J. Jacquin, 1760 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Olacaceae (Family)
     Acrolobus Bostrom, 1985 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Cephalobidae (Family)

Acrolophus
     Acrolophus Poey, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
     Acrolophus Ramme, 1941 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Acrolophus Cassini in F. Cuvier, 1827 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Acrometopia
     Acrometopia Lioy, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Acrometopia Schiner, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chamaemyiidae (Family)

Acromia
     Acromia Townes, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Acromia accepted as Acrocomia C.F.P. Martius, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Acromis
     Acromis Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Acromis Erichson, 1847 accepted as Acromis Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Acronema
     Acronema Falconer ex Edgeworth, 1845 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Acronema Rubtsov, 1978 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Marimermithida (Order) > Marimermithidae (Family)
 Acronema Teal, Guillemette, Chapman & Margulis, 1998 accepted as · Chromista (Kingdom) > Bigyra (Phylum) > Bikosea (Class) > Anoecida (Order) > Cafeteriidae (Family)

Acronia
     Acronia Westwood, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Acronia K.B. Presl, 1827 accepted as Pleurothallis R. Brown in W.T. Aiton, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Acronirmus
     Acronirmus Eichler, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Philopteridae (Family)
     Acronirmus Kéler, 1939 accepted as Acronirmus Eichler, 1953 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Philopteridae (Family)

Acronotus
 Acronotus Lacordaire, 1842 accepted as Iphiclus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
 Acronotus Smith, 1827 accepted as Alcelaphus de Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Acronurus
 Acronurus Günther (ex Gronow), 1861 accepted as Acanthurus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)
 Acronurus Gronow in Gray, 1854 accepted as Acanthurus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)

Acropelta
 Acropelta Nakai, 1953 accepted as Polystichum A.W. Roth, 1799 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Dryopteridaceae (Family)
     Acropelta Mella, 1869 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Acropeltis
     Acropeltis L. Agassiz, 1838 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Arbacioida (Order) > Acropeltidae (Family)
     Acropeltis Agassiz, 1840 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Acropeltis Montagne, 1837 accepted as Gelidium J.V.F. Lamouroux, 1813 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gelidiales (Order) > Gelidiaceae (Family)

Acropholis
     Acropholis Nielsen, 1935 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Acropholis Aldinger, 1935 † accepted as Acropholis Aldinger, 1935 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Acrophyllum
     Acrophyllum Bentham in Maund, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Cunoniaceae (Family)
     Acrophyllum Thomson & Nicholson, 1876 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Stauriida (Order) > Acrophyllidae (Family)
 Acrophyllum Beier, 1963 accepted as Acyrophyllum Beier, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Acropis
 Acropis Reider & Hahn, 1835 accepted as Hirundo Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Hirundinidae (Family)
     Acropis Burmeister, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Zopheridae (Family)

Acropogon
     Acropogon Schlechter, 1906 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Acropogon Enderlein, 1933 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Simuliidae (Family)

Acropoma
     Acropoma Temminck & Schlegel in Siebold, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acropomatidae (Family)
     Acropoma Owen, 1854 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Acropora
 Acropora Reuss, 1869 † accepted as Porina d'Orbigny, 1852 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Porinidae (Family)
     Acropora Oken, 1815 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Acroporidae (Family)
     Acropora Krueger, 1823 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Tabulata (Order) > Tabulata (awaiting allocation) (Family)

Acropteris
     Acropteris Geyer in Hübner, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Uraniidae (Family)
 Acropteris Link, 1833 accepted as Asplenium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Aspleniaceae (Family)

Acropteryx
     Acropteryx Ragonot, 1891 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Acropteryx Gistel, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Acrorhynchus
 Acrorhynchus Graff, 1882 accepted as Acrorhynchides Strand, 1928 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Rhabdocoela (Order) > Polycystididae (Family)
 Acrorhynchus A. Milne-Edwards, 1879 accepted as Podochela Stimpson, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Majidae (Family)

Acroria
 Acroria Cossmann, 1889 † accepted as Acroreia Cossmann, 1885 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Basommatophora (Order) > Basommatophora (awaiting allocation) (Family)
     Acroria Walker, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Acroscyphus
     Acroscyphus Léveillé, 1846 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Caliciaceae (Family)
 Acroscyphus N. Kitagawa, 1984 accepted as · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Jungermanniales (Order) > Balantiopsidaceae (Family)

Acrosmiliopsis
     Acrosmiliopsis Reig & Vilella, 1995 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Scleractinia (awaiting allocation) (Family)
     Acrosmiliopsis Kuzmicheva, 2002 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Scleractinia (awaiting allocation) (Family)

Acrospelion
     Acrospelion Besser in J.A. Schultes & J.H. Schultes, 1827 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Acrospelion E.G. von Steudel accepted as Trisetum Persoon, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Acrospira
 Acrospira Welwitsch ex J.G. Baker, 1878 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
     Acrospira Guilding, 1840 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Acrospira Batten, 1985 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Acrospira Montagne, 1857 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Acrospirifer
     Acrospirifer Wedekind in Salamon, 1926 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Delthyrididae (Family)
     Acrospirifer Helmbrecht & Wedekind, 1923 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Delthyrididae (Family)

Acrosporium
 Acrosporium C.G.D. Nees, 1816 accepted as Oidium Link in Willdenow, 1824 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Erysiphales (Order) > Erysiphaceae (Family)
     Acrosporium Bonorden, 1851 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Acrostachys
 Acrostachys (Bentham & J.D. Hooker) Van Tieghem, 1894 accepted as Helixanthera Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Loranthaceae (Family)
 Acrostachys Herter, 1923 accepted as Lycopodium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Lycopodiales (Order) > Lycopodiaceae (Family)

Acrostigma
 Acrostigma O.F. Cook & Doyle, 1913 accepted as Wettinia Poeppig in Endlicher, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
 Acrostigma Forel, 1902 accepted as Stigmacros Forel, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)
     Acrostigma Emery, 1891 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Acrostoma
     Acrostoma Le Sauvage, 1827 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)
 Acrostoma Brot, 1871 accepted as Paracrostoma Cossmann, 1900 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Pachychilidae (Family)
 Acrostoma Westerlund, 1901 accepted as Acrotoma Böttger, 1881 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
     Acrostoma D.F. Didrichsen accepted as Remijia A.P. de Candolle, 1829 (nomen nudum)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Acrostylus
 Acrostylus Clench, 1935 accepted as Placostylus Beck, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Placostylidae (Family)
     Acrostylus Cossmann, 1896 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Nerineidae (Family)

Acroteuthis
 Acroteuthis Berry, 1913 accepted as Alloteuthis Wülker, 1920 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Myopsida (Order) > Loliginidae (Family)
     Acroteuthis Stolley, 1911 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Belemnitida (Order) > Belemnitida (awaiting allocation) (Family)

Acrotherium
     Acrotherium Pomel, 1848 † accepted as Nesodon Owen, 1847 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Toxodontidae (Family)
 Acrotherium Ameghino, 1887 † accepted as Nesodon Owen, 1847 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Toxodontidae (Family)

Acrotoma
     Acrotoma Mocsáry, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Acrotoma Böttger, 1881 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)

Acrotrema
     Acrotrema W. Jack, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dilleniales (Order) > Dilleniaceae (Family)
     Acrotrema Cossmann, 1889 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Acrotylus
     Acrotylus Fieber, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Acrotylus J.G. Agardh, 1849 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Acrotylaceae (Family)

Acrydium
 Acrydium Geoffroy, 1762 accepted as Psophus Fieber, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Acrydium Müller, 1764 accepted as Psophus Fieber, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Actaea
     Actaea De Haan in Siebold, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthidae (Family)
     Actaea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)
 Actaea Druce, 1885 accepted as Ephialtias Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)

Actaeodes
 Actaeodes Benoit, 1977 accepted as Benoitodes Platnick, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Gnaphosidae (Family)
     Actaeodes Dana, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthidae (Family)

Actaeon
 Actaeon Ersch & Gruber, 1818 accepted as Acteon Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Acteonidae (Family)
     Actaeon Grateloup, 1836 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Actaeon Goldfuss, 1820 accepted as Acteon Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Acteonidae (Family)
 Actaeon de Montfort, 1810 accepted as Acteon Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Acteonidae (Family)
     Actaeon Oken, 1815 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Actaeon Rang, 1829 accepted as Elysia Risso, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sacoglossa (Order) > Plakobranchidae (Family)

Actaeopsis
     Actaeopsis Carter, 1898 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthoidea (awaiting allocation) (Family)
 Actaeopsis Lanchester, 1900 accepted as Liomera Dana, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthidae (Family)

Actea
 Actea Walker, 1854 accepted as Ephialtias Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
 Actea Blainville, 1830 accepted as Aetea Lamouroux, 1812 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Aeteidae (Family)
     Actea Germar in v. Münster, 1842 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coptoclavidae (Family)

Actebia
     Actebia Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Actebia Stephens, 1828 accepted as Actebia Stephens, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Actelois
     Actelois von Bülow-Trummer, 1920 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Actelois Strand, 1928 accepted as Actelois Strand, 1928 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Actenista
     Actenista Dejean, 1833 accepted as Actenista Dejean, 1833 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > (Family)
 Actenista Turner, 1941 accepted as Barea Walker, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)

Actenonyx
     Actenonyx White, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Actenonyx Förster, 1868 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Acteon
     Acteon Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Acteonidae (Family)
     Acteon Fleming, 1828 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Actia
 Actia Heine & Reichenow, 1890 accepted as Actia Heine & Reichenow, 1890 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)
     Actia Meigen, 1838 accepted as Actia Robineau-Desvoidy, 1830 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Actia Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Actidium
     Actidium E.M. Fries, 1815 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Mytilinidiales (Order) > Mytilinidiaceae (Family)
     Actidium Matthews, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptiliidae (Family)

Actilasioptera
     Actilasioptera Gagné, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
 Actilasioptera Gagné in Gagné & Law, 1998 accepted as Actilasioptera Gagné, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Actina
     Actina Meigen, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
 Actina Andrássy, 1964 accepted as Brasilaimus Lordello & Zamith, 1957 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Dorylaimida (Order) > Actinolaimidae (Family)

Actinastrum
     Actinastrum Lagerheim, 1882 · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Chlorellaceae (Family)
     Actinastrum Haeckel, 1885 accepted as Actinastrum Haeckel, 1885 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Actinea
 Actinea A.L. Jussieu, 1803 accepted as Helenium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Actinea Milne-Edwards, 1860 accepted as Actinia Linnaeus, 1767 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actiniidae (Family)

Actinella
     Actinella F.W. Lewis, 1864 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Eunotiales (Order) > Eunotiaceae (Family)
     Actinella Lowe, 1852 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)
 Actinella Persoon, 1807 accepted as Helenium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Actinella Jussieu ex Nuttall, 1818 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Actinhelia
     Actinhelia d'Orbigny, 1849 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Actinacididae (Family)
 Actinhelia Duncan, 1880 accepted as Hydnophora Fischer von Waldheim, 1807 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Merulinidae (Family)

Actinia
 Actinia Pallas, 1766 accepted as Pentacta Goldfuss, 1820 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Cucumariidae (Family)
     Actinia Linnaeus, 1767 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actiniidae (Family)
 Actinia Browne, 1756 accepted as Priapus Linnaeus, 1758 · Animalia (Kingdom) > Priapulida (Phylum) > Priapulimorpha (Class) > Priapulimorphida (Order) > Priapulidae (Family)

Actiniscus
     Actiniscus Ehrenberg, 1841 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gymnodiniales (Order) > Actiniscaceae (Family)
 Actiniscus C.G. Ehrenberg, 1840 accepted as Actiniscus Ehrenberg, 1841 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gymnodiniales (Order) > Actiniscaceae (Family)

Actinobdella
     Actinobdella Moore, 1901 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Rhynchobdellida (Order) > Glossiphoniidae (Family)
     Actinobdella Gönnert, 1935 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Actinobolus
 Actinobolus Stein, 1867 accepted as Actinobolina Strand, 1928 · Chromista (Kingdom) > Ciliophora (Phylum) > Litostomatea (Class) > Haptorida (Order) > Actinobolinidae (Family)
     Actinobolus Westwood, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Actinobolus Mörch, 1853 accepted as Cardites Link, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Carditidae (Family)

Actinobotrys
 Actinobotrys H. Hoffmann, 1856 accepted as Bremia Regel, 1843 · Chromista (Kingdom) > Pseudofungi (Phylum) > Oomycetes (Class) > Peronosporales (Order) > Peronosporaceae (Family)
 Actinobotrys W. West & G.S. West, 1905 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Radiococcaceae (Family)

Actinocephalus
 Actinocephalus Thorne, 1967 † accepted as Paractinocephala Andrássy, 1973 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Dorylaimida (Order) > Actinolaimidae (Family)
     Actinocephalus Stein, 1848 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Actinocephalidae (Family)
 Actinocephalus Kützing, 1843 accepted as Hydrocoleum Kützing ex Gomont, 1892 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Oscillatoriales (Order) > Microcoleaceae (Family)
     Actinocephalus (F.A. Körnicke) Sano, 2004 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Eriocaulaceae (Family)

Actinoceratites
     Actinoceratites Bronn, 1834 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Actinoceratites Schrammen, 1928 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Actinochloris
 Actinochloris E.G. von Steudel, 1840 accepted as Chloris O. Swartz, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Actinochloris Korshikov, 1953 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Actinochloridaceae (Family)

Actinoconchus
     Actinoconchus M'Coy, 1844 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Athyridida (Order) > Athyrididae (Family)
     Actinoconchus M'Coy in Griffith, 1842 † accepted as Actinoconchus M'Coy, 1844 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Athyridida (Order) > Athyrididae (Family)

Actinocrinus
 Actinocrinus Agassiz, 1836 † accepted as Actinocrinites Miller, 1821 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Monobathrida (Order) > Actinocrinitidae (Family)
     Actinocrinus Sowerby in Murchison, 1839 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Actinocyathus
 Actinocyathus Kent, 1882 accepted as Actinocyathula Corliss, 1960 · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Exogenida (Order) > Ephelotidae (Family)
     Actinocyathus d'Orbigny, 1849 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Axophyllidae (Family)

Actinocyclus
     Actinocyclus Ehrenberg, 1837 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Coscinodiscophyceae (Class) > Coscinodiscales (Order) > Hemidiscaceae (Family)
 Actinocyclus Schrammen, 1912 † accepted as Ubiquiradius de Laubenfels in Moore, 1955 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinellida (awaiting allocation) (Order) > Hexactinellida (awaiting allocation) (Family)
     Actinocyclus Ehrenberg, 1831 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Actinocyclidae (Family)

Actinodactylus
 Actinodactylus Haswell, 1893 accepted as Actinodactylella Haswell in Macleay, 1893 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Temnocephalidae (Family)
     Actinodactylus Duchassaing, 1850 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actiniaria incertae sedis (Family)

Actinodendron
     Actinodendron Quoy & Gaimard in de Blainville, 1830 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actinodendridae (Family)
 Actinodendron G.F. Orr & Kuehn, 1963 accepted as Oncocladium Wallroth, 1833 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Onygenales (Order) > Gymnoascaceae (Family)

Actinodesma
     Actinodesma Sandberger, 1856 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pterineidae (Family)
     Actinodesma Miller, 1877 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Actinodictyon
     Actinodictyon Pantocsek, 1889 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)
     Actinodictyon Parks, 1909 † · Animalia (Kingdom) > Porifera (Phylum) > Stromatoporoidea (Class) > Clathrodictyida (Order) > Ecclimadictyidae (Family)

Actinodiscus
     Actinodiscus Greville, 1863 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > Coscinodiscophyceae (Class) > Stictodiscales (Order) > Stictodiscaceae (Family)
 Actinodiscus de Blainville, 1830 accepted as Discosoma Rüppell & Leuckart, 1828 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Corallimorpharia (Order) > Discosomidae (Family)
     Actinodiscus Smith & Paul, 1982 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Cyclocystoidea (Order) > Cyclocystoididae (Family)

Actinogonium
     Actinogonium Schomburgk, 1847 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Actinogonium Ehrenberg, 1847 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)
 Actinogonium Allman, 1872 accepted as Coryne Gaertner in Pallas, 1774 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Corynidae (Family)

Actinoides
 Actinoides Gray, 1859 accepted as Actinoides Gray, 1859 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Halcyonidae (Family)
 Actinoides Carlgren, 1900 accepted as Actinioides Haddon & Shackleton, 1893 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actiniidae (Family)

Actinolepis
     Actinolepis Agassiz, 1845 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Arthrodira (Order) > Actinolepididae (Family)
     Actinolepis A.P. de Candolle, 1836 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Actinoloba
     Actinoloba de Blainville, 1830 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actinostolidae (Family)
     Actinoloba Warren · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Actinoma
     Actinoma Haeckel, 1861 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Actinoma Park, 1942 accepted as Actionoma Raffray, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Actinomma
 Actinomma P.A. Saccardo, 1884 accepted as Seuratia Patouillard, 1904 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Seuratiaceae (Family)
     Actinomma Haeckel, 1860 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Actinommidae (Family)

Actinomya
     Actinomya Mayer, 1870 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Actinomya Ulrich, 1893 † accepted as Whiteavesia Ulrich, 1893 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Modiomorphoida (Order) > Modiomorphidae (Family)
 Actinomya Carus in Carus & Gerstaecker, 1875 † accepted as Antinomia Catullo, 1851 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Pygopidae (Family)

Actinonema
     Actinonema C.H. Persoon, 1822 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Actinonema E.M. Fries, 1849 accepted as Spilocaea E.M. Fries, 1819 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Venturiales (Order) > Venturiaceae (Family)
     Actinonema Cobb, 1920 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Chromadorida (Order) > Chromadoridae (Family)

Actinopelte
 Actinopelte P.A. Saccardo, 1913 accepted as Tubakia B.C. Sutton, 1973 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Tubakiaceae (Family)
 Actinopelte Stizenberger, 1861 accepted as Solorinella Anzi, 1860 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Ostropales (Order) > Asterothyriaceae (Family)

Actinopeltis
     Actinopeltis Hawle & Corda, 1847 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Hammatocnemidae (Family)
     Actinopeltis F. von Höhnel, 1907 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Microthyriales (Order) > Microthyriaceae (Family)
 Actinopeltis Poulsen, 1947 † accepted as Grinnellaspis Poulsen, 1948 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Proetida (awaiting allocation) (Family)

Actinophlebia
 Actinophlebia K.B. Presl, 1847 accepted as Cyathea J.E. Smith, 1793 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Cyatheales (Order) > Cyatheaceae (Family)
     Actinophlebia Handlirsch, 1906 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Brongniartiellidae (Family)

Actinophora
 Actinophora Merrill, 1943 accepted as Acinophora Rafinesque, 1808 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Agaricales incertae sedis (Family)
     Actinophora Wallich ex J.J. Bennett & R. Brown, 1852 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Actinophora Berthold in Latreille, 1827 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Actinophorus
     Actinophorus Meek, 1864 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Actinophorus Creutzer, 1799 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Actinophorus Newberry, 1888 † accepted as Tegeolepis Miller, 1892 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Palaeonisciformes (Order) > Palaeonisciformes (awaiting allocation) (Family)

Actinophyllum
     Actinophyllum Phillips in Phillips & Salter, 1848 † accepted as Actinophyllum Phillips in Phillips & Salter, 1848 † (nomen dubium)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Axophyllidae (Family)
 Actinophyllum Ruiz & Pavón, 1794 accepted as Schefflera J.R. Forster & J.G.A. Forster, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)

Actinopora
     Actinopora d'Orbigny, 1853 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Actinoporidae (Family)
     Actinopora Vinassa de Regny, 1918 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Favositida (Order) > Syringolitidae (Family)

Actinopsis
 Actinopsis Lambert, 1897 † accepted as Lambertechinus Cossmann, 1899 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Phymosomatoida (Order) > Phymosomatidae (Family)
 Actinopsis accepted as Acinopsis Monterosato, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Babyloniidae (Family)
     Actinopsis Koren & Danielssen in Sars, Koren & Danielssen, 1856 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actiniidae (Family)
 Actinopsis Starbäck, 1899 accepted as Trichothelium J. Müller Arg., 1885 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Ostropales (Order) > Porinaceae (Family)

Actinoptera
     Actinoptera Tryon, 1884 † accepted as Actinopteria Hall, 1883 † (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pterineidae (Family)
     Actinoptera Rondani, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Actinoptilon
 Actinoptilon Kükenthal, 1910 accepted as Actinoptilum Kükenthal, 1911 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Scleralcyonacea (Order) > Echinoptilidae (Family)
     Actinoptilon Bode, 1953 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Planipennia (awaiting allocation) (Family)

Actinoseris
     Actinoseris d'Orbigny, 1849 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Actinoseris (Endlicher) Cabrera, 1970 accepted as Richterago O. Kuntze, 1891 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Actinosoma
     Actinosoma Holmberg, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
 Actinosoma H. Sydow, 1930 accepted as Actinopeltis F. von Höhnel, 1907 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Microthyriales (Order) > Microthyriaceae (Family)

Actinosphaera
 Actinosphaera D. Noël, 1965 † accepted as Watznaueria P. Reinhardt, 1964 † · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Watznaueriales (Order) > Watznaueriaceae (Family)
 Actinosphaera Hollande & Enjumet, 1960 accepted as Haliommilla Haeckel, 1887 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Rhizosphaeridae (Family)

Actinospongia
     Actinospongia Mostler, 1986 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Tetractinomorpha (awaiting allocation) (Order) > Tetractinomorpha (awaiting allocation) (Family)
     Actinospongia d'Orbigny, 1849 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Axinellida (Order) > Axinellida (awaiting allocation) (Family)

Actinospora
 Actinospora Ingold, 1952 accepted as Actinosporella E. Descals, L. Marvanová & J. Webster, 1999 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pyronemataceae (Family)
 Actinospora Turczaninow in F.E.L. Fischer & C.A. Meyer, 1835 accepted as Actaea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)

Actinostephanus
     Actinostephanus F. Wen, Y.G. Wei & L.F. Fu in Wen et al., 2022 accepted as Skogea U.B. Deshmukh, 2024 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
     Actinostephanus Kwietniewski, 1897 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actinodendridae (Family)

Actinostoma
     Actinostoma Reimers & Sakurai, 1931 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Entodontaceae (Family)
     Actinostoma Young & Young, 1874 † (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)

Actinostroma
     Actinostroma Nicholson, 1886 † · Animalia (Kingdom) > Porifera (Phylum) > Stromatoporoidea (Class) > Actinostromatida (Order) > Actinostromatidae (Family)
 Actinostroma Klotzsch in F.J.F. Meyen, 1843 accepted as Cymatoderma Junghuhn, 1840 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Meruliaceae (Family)

Actinota
 Actinota Agassiz, 1846 accepted as Actinote Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Actinota Hartmann, 1840 accepted as Actinota Hartmann, 1840 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Actinotheca
     Actinotheca Xiao & Zhou, 1985 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Calyptoptomatida (Class) > Calyptoptomatida (awaiting allocation) (Order) > Calyptoptomatida (awaiting allocation) (Family)
     Actinotheca I.C. Cookson & A. Eisenack, 1960 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacaceae (Family)

Actinothecium
 Actinothecium Flotow, 1855 accepted as Verrucaria H.A. Schrader, 1794 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Verrucariales (Order) > Verrucariaceae (Family)
     Actinothecium Cesati in Rabenhorst, 1854 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Actinothrix
 Actinothrix Reinert, Harbach & Kitching, 2009 accepted as Actinotryx Duchassaing & Michelotti, 1860 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Corallimorpharia (Order) > Discosomidae (Family)
     Actinothrix J.E. Gray, 1864 accepted as Actinothrix J.E. Gray, 1864 (taxon inquirendum)· Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Oscillatoriales (Order) > Oscillatoriaceae (Family)

Actinotus
     Actinotus Labillardière, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Actinotus Gravenhorst, 1831 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Actinurus
     Actinurus Ehrenberg, 1830 accepted as Rotaria Scopoli, 1777 (nomen nudum)· Animalia (Kingdom) > Rotifera (Phylum) > Bdelloidea (Class) > Bdelloida (Order) > Philodinidae (Family)
 Actinurus Ehrenberg, 1831 accepted as Rotaria Scopoli, 1777 · Animalia (Kingdom) > Rotifera (Phylum) > Bdelloidea (Class) > Bdelloida (Order) > Philodinidae (Family)

Actis
     Actis McCook, 1889 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Actis Karsch, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)

Actites
 Actites Cuvier, 1817 accepted as Tringa Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)
 Actites Lanchester, 1902 accepted as Actiomera Ng, Guinot & Davie, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthidae (Family)
     Actites N.S. Lander, 1976 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Actites Billberg, 1828 accepted as Limosa Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)

Actocharis
 Actocharis Fauvel, ? 1870 accepted as Actocharis Sharp, 1870 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Actocharis Sharp, 1870 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Actonia
 Actonia Monterosato, 1884 accepted as Alvania Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)
     Actonia C.W. Dodge, 1935 · Fungi (Kingdom) > Ascomycota (Phylum) > Saccharomycetes (Class) > Saccharomycetales (Order) > Saccharomycetales incertae sedis (Family)

Actophilus
 Actophilus Oberholser, 1899 accepted as Actophilornis Oberholser, 1925 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Jacanidae (Family)
 Actophilus Agassiz, 1846 accepted as Harpalus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Acuaria
     Acuaria Zakrzewski, 1886 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Acuaria Bremser, 1811 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Acuariidae (Family)
     Acuaria Quenstedt, 1856 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Aculea
     Aculea Perry, 1810 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Aculea J.G. Douglas, 1973 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)

Aculomicrus
 Aculomicrus Smetana, 1975 accepted as Aculomicrus Smetana, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)
     Aculomicrus Smetana, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)

Acupalpus
     Acupalpus Latreille, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Acupalpus Thomson, 1857 accepted as Bradycellus Erichson, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Acura
     Acura J. Hill, 1763 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dipsacales (Order) > Caprifoliaceae (Family)
     Acura Adams, 1855 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Acura Agassiz, 1846 accepted as Schistura McClelland, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Nemacheilidae (Family)

Acus
     Acus Tsao & Zhao, 1974 † · Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)
 Acus Gray, 1847 accepted as Oxymeris Dall, 1903 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Terebridae (Family)
 Acus Müller, 1766 accepted as Belone Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Beloniformes (Order) > Belonidae (Family)
 Acus Müller, 1774 accepted as Belone Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Beloniformes (Order) > Belonidae (Family)
 Acus Chen, Yang & Wilson, 1989 accepted as Neoacus Dmitriev, 2020 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Achilidae (Family)
 Acus Plumier in Lacepède, 1803 accepted as Sphyraena Artedi in Röse, 1793 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sphyraenidae (Family)
 Acus Swainson, 1839 accepted as Entelurus Duméril, 1870 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Syngnathiformes (Order) > Syngnathidae (Family)
 Acus Catesby, 1771 accepted as Acus Catesby, 1771 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lepisosteiformes (Order) > Lepisosteidae (Family)
 Acus Valmont de Bomare, 1791 accepted as Syngnathus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Syngnathiformes (Order) > Syngnathidae (Family)

Acutaspis
     Acutaspis Repina in Repina, Belyaeva & Sobolev, 1976 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Acutaspis Ferris, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)

Acutella
     Acutella Orlova, 1996 † (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Foraminifera (awaiting allocation) (Class) > (Order) > (Family)
     Acutella Lyashenko, 1973 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Cyrtospiriferidae (Family)

Acutia
 Acutia Kaye, 1919 accepted as Thyrassia Butler, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Zygaenidae (Family)
     Acutia Ragonot, 1891 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Acuticosta
     Acuticosta Simpson, 1900 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
     Acuticosta Grimm, 1998 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcida (awaiting allocation) (Family)

Acutiforcipia
     Acutiforcipia Ashe & O'Connor, 2019 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)
     Acutiforcipia Seredszus & Wichard in Wichard, Gröhn & Seredszus, 2009 † accepted as Acutiforcipia Ashe & O'Connor, 2019 † (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)

Acutipalpa
 Acutipalpa Rosenhauer, 1856 accepted as Aulacophora Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Acutipalpa Hardy, 1939 accepted as Acupalpa Kröber, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Therevidae (Family)

Acutiramus
     Acutiramus Harris & Robertson, 1994 accepted as Porcellidium Claus, 1860 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Porcellidiidae (Family)
     Acutiramus Ruedemann, 1935 † · Animalia (Kingdom) > Arthropoda (Phylum) > (Class) > Eurypterida (Order) > Pterygotidae (Family)

Acystis
     Acystis Schiffner, 1934 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Fucales (Order) > Sargassaceae (Family)
 Acystis Labbé, 1894 accepted as Eimeria Schneider, 1875 · Chromista (Kingdom) > Miozoa (Phylum) > Coccidiomorphea (Class) > Eimeriida (Order) > Eimeriidae (Family)

Acythophanes
     Acythophanes Morimoto & Yoshihara, 1996 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Acythophanes Heller, 1940 accepted as Acythophanes Morimoto & Yoshihara, 1996 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Ada
     Ada Lesson, 1830-31 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Ada Lindley, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Ada Gray, 1825 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Adactyla
 Adactyla Zeller, 1841 accepted as Adactyla Zeller, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Adactyla Barrois & Daday, 1894 (uncertain)· Animalia (Kingdom) > Rotifera (Phylum) > Rotifera (awaiting allocation) (Class) > Rotifera (awaiting allocation) (Order) > Rotifera (awaiting allocation) (Family)

Adactylus
 Adactylus (Endlicher) Rolfe, 1896 accepted as Apostasia Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Adactylus Curtis, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Adamas
     Adamas Chen & Zhang, 2020 † accepted as Anancites Perkovsky, 2022 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lymexylidae (Family)
 Adamas Huber, 1979 accepted as Fenerbahce Özdikmen, Polat, Yilmaz & Yazicioglu, 2006 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cyprinodontiformes (Order) > Nothobranchiidae (Family)
     Adamas Malaise, 1945 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)

Adamboe
 Adamboe Adanson, 1763 accepted as Lagerstroemia Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Lythraceae (Family)
 Adamboe Rafinesque, 1838 accepted as Adamboe Rafinesque, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Convolvulaceae (Family)

Adamia
 Adamia Wallich, 1826 accepted as Dichroa Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cornales (Order) > Hydrangeaceae (Family)
 Adamia Jacques-Félix, 1951 accepted as Feliciadamia A.A. Bullock, 1962 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
 Adamia Tomaszewska, 2000 accepted as Evolocera Sharp, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)

Adamsia
     Adamsia Willdenow, 1808 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
     Adamsia Forbes, 1840 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Hormathiidae (Family)
 Adamsia Dunker, 1857 accepted as Agnewia Tenison-Woods, 1878 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Adamsiella
     Adamsiella L.E. Phillips & W.A. Nelson in L.E. Phillips, 2002 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)
     Adamsiella Pfeiffer, 1851 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Annulariidae (Family)

Adansonia
     Adansonia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Adansonia Saville-Kent, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
 Adansonia Pallary, 1902 accepted as Chauvetia Monterosato, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)

Adapis
     Adapis Cuvier, 1822, nom. nud. † accepted as Adapis Cuvier, 1822 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Adapidae (Family)
     Adapis Cuvier, 1822 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Adapidae (Family)

Adapisorex
     Adapisorex Lemoine, 1881 † accepted as Adapisorex Lemoine, 1883 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Erinaceomorpha (Order) > Adapisoricidae (Family)
     Adapisorex Lemoine, 1883 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Erinaceomorpha (Order) > Adapisoricidae (Family)

Addax
     Addax Laurillard, 1841 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
     Addax Rafinesque, 1815 accepted as Addax Laurillard, 1841 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Addisonia
     Addisonia Dall, 1882 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Addisoniidae (Family)
     Addisonia H.H. Rusby, 1893 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Adelanthus
     Adelanthus Mitten, 1864 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Jungermanniales (Order) > Adelanthaceae (Family)
 Adelanthus Endlicher, 1840 accepted as Pyrenacantha W.J. Hooker in Wight, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Icacinales (Order) > Icacinaceae (Family)

Adelarus
     Adelarus Bonaparte, 1853 accepted as Adelarus Bonaparte, 1853 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Adelarus Bruch, 1853 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Adelia
 Adelia P. Browne, 1756 accepted as Forestiera Poiret in Lamarck, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Oleaceae (Family)
     Adelia Moulds, 2012 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)
     Adelia Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Adelina
 Adelina Laporte de Castelnau, 1840 accepted as Adelonia Laporte, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Adelina Cantraine, 1841 † accepted as Adelinella Wenz, 1922 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Lymnaeidae (Family)
     Adelina Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Adelina Hesse, 1911 accepted as Obvallatus Özdikmen, 2009 (junior homonym)· Chromista (Kingdom) > Miozoa (Phylum) > Coccidiomorphea (Class) > Adeleida (Order) > Adeleidae (Family)
     Adelina Wollaston, 1858 accepted as Adelina Dejean, 1835 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Adelina LeConte, 1851 accepted as Adelina Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Adelinia
     Adelinia Costa, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Keroplatidae (Family)
     Adelinia J.I. Cohen, 2015 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Adeloides
 Adeloides Warren, 1892 accepted as Neadeloides Bryk in Klima, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
 Adeloides Blanchard, 1845 accepted as Adelus Schönherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Adelomorpha
     Adelomorpha Snellen, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Adelomorpha Tapparone-Canefri, 1886 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Adelomyia
     Adelomyia Bonaparte, 1854 accepted as Adelomyia Bonaparte, 1854 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)
     Adelomyia Ulmer, 1912 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)

Adelonema
 Adelonema H.W. Schott, 1860 accepted as Homalomena H.W. Schott in H.W. Schott & Endlicher, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)
     Adelonema Mawson, 1978 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Oxyuridae (Family)
 Adelonema Holovachov & Sturhan, 2003 accepted as Novadelonema Özdikmen, 2010 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Monhysterida (Order) > Diplopeltidae (Family)

Adelophyton
     Adelophyton B. Renault, 1900 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Lepidodendrales (Order) > Lepidodendrales (awaiting allocation) (Family)
 Adelophyton Kraft, 1975 accepted as Adelophycus Kraft, 1994 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Nemastomatales (Order) > Nemastomataceae (Family)

Adelops
 Adelops Tellkampf, 1843 accepted as Ptomaphagus Hellwig, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Silphidae (Family)
     Adelops Dejean, 1833 accepted as Anaides Westwood, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)

Adelopus
     Adelopus Rafinesque, 1832 † accepted as Adelopus Rafinesque, 1832 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
 Adelopus Theissen, 1918 accepted as Phaeocryptopus Naumov, 1915 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideales (Order) > Dothideales incertae sedis (Family)
 Adelopus accepted as Adelotopus Hope, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Adelostoma
     Adelostoma Duponchel, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Adelostoma Smith, 1885 accepted as Adelomorpha Tapparone-Canefri, 1886 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Assimineidae (Family)

Adelothyreus
     Adelothyreus Chevrolat, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
     Adelothyreus Horn, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)

Adelpha
     Adelpha Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Adelpha Schulz, 1906 accepted as Adelpha Schulz, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Adelphella
     Adelphella D.H. Pfister, N. Matocec & I. Kušan, 2009 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pezizaceae (Family)
 Adelphella D.H. Pfister, N. Matocec & I. Kušan, 2008 accepted as Adelphella D.H. Pfister, N. Matocec & I. Kušan, 2009 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pezizaceae (Family)

Adelphia
     Adelphia W.R. Anderson, 2006 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)
     Adelphia Heinrich, 1956 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Adelphoceras
 Adelphoceras Girty, 1909 † accepted as Girtyoceras Wedekind, 1918 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Goniatitida (Order) > Girtyoceratidae (Family)
     Adelphoceras Barrande, 1870 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Nautilida (Order) > Nautilida (awaiting allocation) (Family)

Adelphochernes
     Adelphochernes Beier, 1937 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Pseudoscorpionida (Order) > Chernetidae (Family)
 Adelphochernes Beier, 1944 accepted as Caffrowithius Beier, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Pseudoscorpionida (Order) > Chernetidae (Family)

Adelphus
     Adelphus Germar, 1848 accepted as Adelphus Dejean, 1834 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Adelphus Dejean, 1834 accepted as Praeugena Laporte, 1840 (nomen oblitum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Adelungia
 Adelungia Klapálek, 1914 accepted as Claassenia Wu, 1934 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Perlidae (Family)
     Adelungia Suleymanov, 1966 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Reophacidae (Family)
     Adelungia Melichar, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Adelura
     Adelura Förster, 1862 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Adelura Bonaparte, 1854 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Adena
 Adena Agassiz, 1846 accepted as Hadena Schrank, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Adena Walker, 1863 accepted as Deana Butler, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)

Adenanthemum
 Adenanthemum B. Nordenstam, 1976 accepted as Adenanthellum B. Nordenstam, 1979 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Adenanthemum Conwentz, 1886 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Saxifragaceae (Family)

Adenia
 Adenia J. Torrey, 1843 accepted as Adenia J. Torrey, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Urticaceae (Family)
 Adenia Robineau-Desvoidy, 1863 accepted as Exorista Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Adenia Slamka, 2019 accepted as Balqisia Slamka, 2020 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Adenia Distant, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Adenia Robineau-Desvoidy, 1863 [b] accepted as Arenia Robineau-Desvoidy, 1863 (misspelling - incorrect original spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Adenia Forsskål, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Passifloraceae (Family)

Adenodrilus
     Adenodrilus Chekanovskaya, 1959 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)
     Adenodrilus Holt, 1977 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Branchiobdellida (Order) > Bdellodrilidae (Family)

Adenopetalum
 Adenopetalum Klotzsch & Garcke in Klotzsch, 1859 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Adenopetalum Turczaninow, 1858 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Vitales (Order) > Vitaceae (Family)

Adenophora
     Adenophora F.E.L. Fischer, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)
     Adenophora Borgmeier, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Phoridae (Family)

Adenophorus
     Adenophorus Thomson, 1859 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Adenophorus Gaudichaud-Beaupré, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Polypodiaceae (Family)

Adenoplea
 Adenoplea Radlkofer, 1883 accepted as Buddleja Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
     Adenoplea Reisinger, 1924 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Typhloplanidae (Family)

Adenosma
 Adenosma C.G.D. Nees in Alph. de Candolle, 1847 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
     Adenosma R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)

Adenus
 Adenus Yokoyama, 1926 accepted as Adinus H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)
 Adenus † accepted as Adensu Popov & Rukavishnikova, 1986 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Craniata (Class) > Trimerellida (Order) > Adensuidae (Family)

Adeona
     Adeona Lamouroux, 1812 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Adeonidae (Family)
     Adeona Rafinesque, 1815 accepted as Adeona Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Adeps
     Adeps Gistl, 1857 accepted as Adepsion Strand, 1917 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Adeps Gistl, 1848 accepted as Audouinia Costa, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Corophiidae (Family)

Aderus
 Aderus Westwood, 1830 accepted as Aderus Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Aderidae (Family)
     Aderus Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Aderidae (Family)

Adesmia
     Adesmia A.P. de Candolle, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Adesmia Fischer von Waldheim, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Adesmus
     Adesmus Dejean, 1821 accepted as Adesmus Lepeletier & Audinet-Serville in Latreille, 1825 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Adesmus Latreille, 1829 accepted as Adesmus Lepeletier & Audinet-Serville in Latreille, 1825 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Adesmus Lepeletier & Audinet-Serville in Latreille, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Adetaster
 Adetaster Delage & Hérouard, 1904 † accepted as Adytaster Lambert, 1895 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Spatangoida (awaiting allocation) (Family)
     Adetaster Lambert, 1895 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > (Family)

Adetus
     Adetus Leconte, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Adetus Berendt, 1845 accepted as Adetus Berendt, 1845 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Adexia
     Adexia Melichar, 1901 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Flatidae (Family)
 Adexia Bach, 1854 accepted as Adexius Schoenherr, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Adexius
     Adexius Schoenherr, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Adexius Schönherr, 1833 accepted as Adexius Schoenherr, 1834 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Adiaphorothrips
 Adiaphorothrips sensu Girault, 1928 accepted as Akainothrips Mound, 1971 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)
 Adiaphorothrips Bagnall, 1909 accepted as Machatothrips Bagnall, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)

Adiaphorus
     Adiaphorus Candèze, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Adiaphorus Fåhraeus, 1872 accepted as Ossibia Pascoe, 1867 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Adimus
 Adimus Billberg, 1829 accepted as Altica Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Adimus Schaufuss, 1869 accepted as Adinus H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)

Adina
     Adina Grishin, 2022 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
     Adina R.A. Salisbury, 1808 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Adinopsis
     Adinopsis Cameron, 1918 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Adinopsis Odhner, 1923 accepted as Adinassa Horro, Schönherr & Rolán, 2018 (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)

Adioristidius
     Adioristidius Voss, 1954 accepted as Adioristidius Morrone, 1994 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Adioristidius Morrone, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Adioristidus
     Adioristidus Voss, 1954 accepted as Adioristidius Voss, 1954 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Adioristidus Edwards & Hopwood, 1966 accepted as Adioristidius Morrone, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Adisius
     Adisius Bretfeld, 2002 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Symphypleona (Order) > Bourletiellidae (Family)
     Adisius Fairmaire, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Adleria
 Adleria Witenberg, 1929 accepted as Adleriella Witenberg, 1930 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Opisthorchiida (Order) > Heterophyidae (Family)
     Adleria Rohwer & Fagan, 1917 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Cynipidae (Family)

Admetus
     Admetus Distant, 1883 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
 Admetus Koch, 1850 accepted as Phrynus Lamarck, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Amblypygi (Order) > Tarantulidae (Family)

Admiranda
 Admiranda Ariunchimeg, 1996 † accepted as Admirandopora Ariunchimeg, 2012 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Fenestrida (Order) > Admiratellidae (Family)
     Admiranda Marfenkova, 1991 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Textulariida (Order) > Globivalvulinidae (Family)

Adna
     Adna Leach, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Adna Sowerby, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Sessilia (Order) > Pyrgomatidae (Family)

Adolfia
     Adolfia Rehn, 1914 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Lentulidae (Family)
 Adolfia Gürich, 1909 † accepted as · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Fimbrispiriferidae (Family)

Adolphia
     Adolphia Stolley, 1907 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Adolphia C.F. Meisner, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rhamnaceae (Family)

Adolus
 Adolus Gistl, 1848 accepted as Melanotus Dejean, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Adolus Eschscholtz in Fischer v. Waldheim, 1828 accepted as Pteroloma Schönherr in Gyllenhal, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Silphidae (Family)

Adonia
 Adonia Mulsant, 1846 accepted as Hippodamia Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)
 Adonia Giebel, 1856 † accepted as Olbiogaster Osten-Sacken, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anisopodidae (Family)

Adonis
 Adonis Gronow in Gray, 1854 accepted as Blennius Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Blenniidae (Family)
     Adonis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)

Adonus
 Adonus Korotyaev, Ismailova, Arzanov, Davidyan & Prasolov, 1993 accepted as Adonus Zaslavskij in Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Adonus Zaslavskij in Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Adoreta
     Adoreta Cristofori & Jan, 1832 accepted as Adoreta Cristofori & Jan, 1832 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Adoreta Gistl, 1848 accepted as Strigoderma Burmeister, 1844 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Adorium
     Adorium Rafinesque, 1825 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Adorium Fabricius, 1801 accepted as Oides Weber, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Adra
     Adra Walker, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Adra Schouteden, 1951 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Adrana
     Adrana H. Adams & A. Adams, 1858 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Nuculanida (Order) > Yoldiidae (Family)
 Adrana Walker, 1858 accepted as Paectes Hübner, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Euteliidae (Family)

Adranes
     Adranes Förster, 1868 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Adranes Le Conte, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Adrapsa
 Adrapsa Pagenstecher, 1909 accepted as Adrepsa Moore in Hewitson & Moore, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Adrapsa Walker, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Adrasteia
 Adrasteia Wells, 2002 accepted as Lampropholis Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
     Adrasteia Chambers, 1872 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Adriana
     Adriana de Gregorio, 1934 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Lyttoniidae (Family)
     Adriana Gaudichaud-Beaupré, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Adrimus
     Adrimus Dejean, 1836 accepted as Adrimus Bates, 1872 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Adrimus Bates, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Adrius
     Adrius Dejean, 1821 accepted as Omias Germar, 1817 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Adrius Gistl, 1848 accepted as Adrius Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Adrodamaeus
     Adrodamaeus Paschoal in Paschoal & Johnston, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Gymnodamaeidae (Family)
 Adrodamaeus Paschoal, 1984 accepted as Adrodamaeus Paschoal in Paschoal & Johnston, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Gymnodamaeidae (Family)

Adula
     Adula H. Adams & A. Adams, 1857 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Mytiloida (Order) > Mytilidae (Family)
     Adula Adams, 1861 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Adura
 Adura Malaise, 1941 accepted as Audura Bergh, 1878 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Discodorididae (Family)
     Adura Krzeminska, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Trichoceridae (Family)

Advena
 Advena Kabata, 1979 accepted as Kabatazus Özdikmen, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Lernaeopodidae (Family)
     Advena Palmer, 1937 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Advena Gude, 1913 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicarionidae (Family)

Advenella
     Advenella Coenye et al., 2005 · Bacteria (Kingdom) > Proteobacteria (Phylum) > Betaproteobacteria (Class) > Burkholderiales (Order) > Alcaligenaceae (Family)
     Advenella Wilde, 2006 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Fusulinidae (Family)

Aechmophora
 Aechmophora C.P.J. Sprengel ex E.G. von Steudel, 1840 accepted as Bromus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Aechmophora Stål, 1869 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Aedia
     Aedia Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Aedia Duponchel, 1836 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)

Aedilis
 Aedilis Gistl, 1848 accepted as Adela Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Adelidae (Family)
     Aedilis Audinet-Serville, 1835 accepted as Acanthocinus Dejean, 1821 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Aedilis LeConte, 1852 accepted as Aedilis Audinet-Serville, 1835 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aedon
 Aedon Forster, 1817 accepted as Aedonis Morris, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Aedon Boie, 1826 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Aedonopsis
 Aedonopsis Rey, 1872 accepted as Aedonops Brehm in Baedeker, 1863 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Aedonopsis Sharpe, 1883 accepted as Tychaedon Richmond, 1917 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Muscicapidae (Family)

Aega
     Aega Hartman, 1881 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Aega Hope, 1838 accepted as Ega Laporte, 1834 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Aega Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Aegidae (Family)

Aegaea
     Aegaea Oppenheim, 1891 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Aegaea Oppenheim, 1890 † accepted as Aegaea Oppenheim, 1890 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Aegaeonichthys
 Aegaeonichthys Clarke, 1878 accepted as Himantolophus Reinhardt, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Himantolophidae (Family)
 Aegaeonichthys Günther, 1887 accepted as Himantolophus Reinhardt, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Himantolophidae (Family)

Aegagropila
     Aegagropila Kützing, 1843 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Cladophorales (Order) > Cladophoraceae (Family)
 Aegagropila Topsent, 1888 accepted as Mycale Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Mycalidae (Family)
     Aegagropila Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Mycalidae (Family)

Aegeon
 Aegeon Gosse, 1865 accepted as · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Halcampoididae (Family)
 Aegeon Risso in Kinahan, 1862 accepted as Aegaeon Agassiz, 1846 [in Agassiz, 1842-1846] · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Crangonidae (Family)

Aegeria
 Aegeria Latreille, 1817 accepted as Phalangipus Latreille, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Majidae (Family)
     Aegeria Fabricius, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sesiidae (Family)
     Aegeria Macquart, 1835 accepted as Egeria Robineau-Desvoidy, 1830 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anthomyiidae (Family)
     Aegeria Agassiz, 1846 accepted as Egeria Robineau-Desvoidy, 1830 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anthomyiidae (Family)

Aegialatis
     Aegialatis Kono, 1938 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Aegialatis Gistl, 1848 accepted as Aegialites Mannerheim, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Salpingidae (Family)

Aegialina
     Aegialina Friend, 1916 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)
 Aegialina J.A. Schultes, 1824 accepted as Rostraria Trinius, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Aegialites
     Aegialites Mannerheim, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Salpingidae (Family)
     Aegialites Dejean, 1833 accepted as Aegialites Mannerheim, 1853 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Salpingidae (Family)
 Aegialites Kaup, 1829 accepted as Aegialitis Boie, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Charadriidae (Family)

Aegialitis
     Aegialitis Boie, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Charadriidae (Family)
     Aegialitis R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Plumbaginaceae (Family)
 Aegialitis Trinius, 1820 accepted as Rostraria Trinius, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Aegidium
     Aegidium Westwood, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Aegidium Dejean, 1833 accepted as Aegidium Blanchard, 1845 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)
     Aegidium Blanchard, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)

Aegilips
     Aegilips Walker, 1835 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Aegilips Agassiz, 1845 accepted as Aegilips Agassiz, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Aegilops
     Aegilops Hall, 1850 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcida (awaiting allocation) (Family)
     Aegilops Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Aegina
     Aegina Eschscholtz, 1829 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Narcomedusae (Order) > Aeginidae (Family)
 Aegina Krøyer, 1843 accepted as Aeginina Norman, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Caprellidae (Family)

Aeginella
     Aeginella Boeck, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Caprellidae (Family)
     Aeginella Haeckel, 1879 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Aeginetia
 Aeginetia Cavanilles, 1801 accepted as Bouvardia R.A. Salisbury, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Aeginetia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Orobanchaceae (Family)

Aegiochus
     Aegiochus Herrich-Schäffer, 1856 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Aegiochus Bovallius, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Aegidae (Family)

Aegipan
     Aegipan Rafinesque, 1815 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Aegipan Scudder, 1877 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Aegira
 Aegira Fries, 1825 accepted as Eudesme J.G. Agardh, 1882 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Ectocarpales (Order) > Chordariaceae (Family)
     Aegira Willems, Artois, Vermin, Backeljau & Schockaert, 2005 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Rhabdocoela (Order) > Rhabdocoela incertae sedis (Family)

Aegithalus
     Aegithalus Boie, 1822 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Aegithalus Billberg, 1828 accepted as Aegithalus Billberg, 1828 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Aegithalus Vigors, 1825 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Aegithalus Poche, 1904 accepted as Aegithalos Hermann, 1804 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Aegithalidae (Family)

Aegle
 Aegle Dulac, 1867 accepted as Najas Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Hydrocharitaceae (Family)
     Aegle Correa, 1800 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Aegle Gistl, 1848 accepted as Axiotima Eschscholtz, 1829 · Animalia (Kingdom) > Ctenophora (Phylum) > Tentaculata (Class) > Lobata (Order) > Lobata incertae sedis (Family)
     Aegle Agassiz, 1846 accepted as Egle Robineau-Desvoidy, 1830 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anthomyiidae (Family)
     Aegle De Haan in Siebold, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthidae (Family)
     Aegle Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Aegle Oken, 1815 accepted as Aegle Oken, 1815 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Aegocephalus
     Aegocephalus Gray, 1840 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Aegocephalus Vierthaler, 1852 accepted as Acrocephalus Naumann, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Sylviidae (Family)

Aegocera
     Aegocera Latreille, 1809 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Aegocera Berthold in Latreille, 1827 † accepted as Hippotragus Sundevall, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Aegoceras
 Aegoceras Waagen in Benecke, 1869 † accepted as Angulaticeras Quenstedt, 1883 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Tarphycerida (Order) > Estonioceratidae (Family)
 Aegoceras Remelé, 1880 † accepted as Tragoceras Remelé, 1883 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Tarphycerida (Order) > Tarphycerida (awaiting allocation) (Family)

Aegoceros
 Aegoceros Pallas, 1811 accepted as Capra Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Aegoceros Wagner in Schreber, 1844 † accepted as Hippotragus Sundevall, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Aegolius
     Aegolius Kaup, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)
 Aegolius Keyserling & Blasius, 1840 accepted as Asio Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)

Aegomorphus
 Aegomorphus Houlbert, 1914 accepted as Aulacostethus Waterhouse, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
     Aegomorphus Dejean, 1835 accepted as Aegomorphus Haldeman, 1847 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Aegomorphus Haldeman, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Aegomorphus Thomson, 1860 accepted as Aegomorphus White, 1855 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Aegomorphus White, 1855 accepted as Aegoschema Aurivillius, 1923 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aegorhinus
     Aegorhinus Dejean, 1837 accepted as (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Aegorhinus Erichson, 1834 accepted as Psuchocephalus Latreille, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Aegostheta
     Aegostheta Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Aegostheta Blanchard, 1845 accepted as Aegostheta Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Aegus
     Aegus Macleay, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
 Aegus Lacordaire, 1856 accepted as Lissotes Westwood, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)

Aegypius
     Aegypius Savigny, 1809 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)
 Aegypius Gistl, 1848 accepted as Crossotus Audinet-Serville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aegyria
 Aegyria Ehrenberg, 1838 accepted as Dysteria Huxley, 1857 · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Cyrtophorida (Order) > Dysteriidae (Family)
     Aegyria Claparède & Lachmann, 1858 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Aegyriana
     Aegyriana Deroux, 1975 accepted as Aegyriana Song & Wilbert, 2002 (nomen nudum)· Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Cyrtophorida (Order) > Hartmannulidae (Family)
     Aegyriana Song & Wilbert, 2002 · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Cyrtophorida (Order) > Hartmannulidae (Family)

Aelia
     Aelia Fabricius, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
 Aelia Agassiz, 1846 accepted as Ailia Gray, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ailiidae (Family)
     Aelia Costa, 1855-73 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Aellenia
     Aellenia Masner, 1958 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Aellenia Ulbrich in Engler & Prantl, 1934 accepted as Halothamnus Jaubert & Spach, 1845 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Aello
 Aello Gozis, 1882 accepted as Pterostichus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Aello Leach, 1821 accepted as Mormoops Leach, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Mormoopidae (Family)
     Aello Gloger, 1827 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Aëllo
 Aëllo Gloger, 1827 accepted as Aello Gloger, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Aëllo Leach, 1821 accepted as Mormoops Leach, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Mormoopidae (Family)
 Aëllo Gozis, 1882 accepted as Aello Gozis, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Aellopos
 Aellopos Münster, 1836 † accepted as Spathobatis Thiollière, 1849 † · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Spathobatidae (Family)
     Aellopos Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)

Aellopus
 Aellopus Koch, 1842 accepted as Hexisopus Karsch, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Solifugae (Order) > Hexisopodidae (Family)
     Aellopus Wolff, 1811 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)

Aelurodon
     Aelurodon Merriam, 1910 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Canidae (Family)
     Aelurodon Leidy, 1858 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Canidae (Family)

Aeluroedus
 Aeluroedus Cabanis in Cabanis & Heine, 1851 accepted as Ailuroedus Cabanis in Cabanis & Heine, 1851 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Ptilonorhynchidae (Family)
 Aeluroedus Sharpe, 1881 accepted as Ailuroedus Cabanis in Cabanis & Heine, 1851 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Ptilonorhynchidae (Family)

Aeluropsis
     Aeluropsis Lydekker, 1884 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > (Family)
     Aeluropsis Emeljanov, 1971 accepted as Bubastia Emelyanov, 1975 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Issidae (Family)

Aeluropus
 Aeluropus Milne-Edwards, 1871 accepted as Ailuropoda Milne-Edwards, 1870 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Ursidae (Family)
     Aeluropus Trinius, 1822 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Aeluropus Lydekker, 1891 accepted as Ailuropoda Milne-Edwards, 1870 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Ursidae (Family)

Aelurosauroides
     Aelurosauroides Boonstra, 1934 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Aelurosauroides Broom, 1940 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Aelurosaurus
     Aelurosaurus Owen, 1881 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Aelurosaurus Boulenger, 1885 accepted as Aeluroscalabotes Boulenger, 1885 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)

Aelurus
 Aelurus Flower, 1870 accepted as Ailurus Cuvier in Geoffroy & Cuvier, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Ailuridae (Family)
     Aelurus Klug, 1840 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tiphiidae (Family)
 Aelurus Agassiz, 1846 accepted as Ailurus Cuvier in Geoffroy & Cuvier, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Ailuridae (Family)
 Aelurus Cuvier in Geoffroy & Cuvier, 1825 accepted as Ailurus Cuvier in Geoffroy & Cuvier, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Ailuridae (Family)

Aemasia
     Aemasia Brunner, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Aemasia Jordan & Snyder, 1901 accepted as Enchelycore Kaup, 1856 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Muraenidae (Family)

Aemona
 Aemona Broun, 1880 accepted as Oemona Newman, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Aemona Hewitson, 1868 accepted as Oemona Newman, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aenanthe
     Aenanthe Pallas, 1771 accepted as Oenanthe Vieillot, 1816 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Muscicapidae (Family)
 Aenanthe Vieillot, 1816 accepted as Oenanthe Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Muscicapidae (Family)

Aenigma
 Aenigma Strecker, 1876 accepted as Hyblaea Fabricius, 1793 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hyblaeidae (Family)
 Aenigma Wesolowska & Haddad, 2009 accepted as Zulunigma Wesolowska & Cumming, 2011 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Aenigma (Luer) D.L. Szlachetko & M. Kolanowska in Szlachetko et al., 2022 accepted as Aletheia Z. Feng, 2023 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Aenigma Karsch, 1878 accepted as Argoctenus Koch, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Zoridae (Family)
     Aenigma Amsel, 1956 accepted as Aenigmodes Amsel, 1957 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
 Aenigma Koch in Martini & Chemnitz, 1846 accepted as Enigmonia Iredale, 1918 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Ostreida (Order) > Anomiidae (Family)
     Aenigma H.A. Keller, 2017 accepted as Topea H.A. Keller, 2017 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Aenigma Kuznetsova, 1957 † accepted as Kuznetsoviella Doweld, 2016 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Cytheridae (Family)
     Aenigma Newman, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Aenigma Omelko, 1988 accepted as Semophylax Meyrick, 1932 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)

Aenigmatophyllum
     Aenigmatophyllum W. Hartung & W. Gothan, 1939 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
 Aenigmatophyllum Lang, Smith & Thomas, 1940 † accepted as Enygmophyllum Fomitchev, 1931 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Stauriida (Order) > Uraliniidae (Family)

Aenone
     Aenone Haliday, 1838 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Aenone Risso, 1826 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Aciculata (Order) > Oenonidae (Family)
     Aenone Lamarck, 1818 † (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Aciculata (Order) > Oenonidae (Family)
     Aenone Haliday in Curtis, 1829-30 accepted as Aenone Haliday in Curtis, 1829-30 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Aenopogon
 Aenopogon Agassiz, 1846 accepted as Aenopogon Agassiz, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Aenopogon Fitzinger, 1863 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Aeolis
 Aeolis Menke, 1844 accepted as Aeolidia Cuvier, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Aeolidiidae (Family)
 Aeolis Oken, 1815 accepted as Aeolidia Cuvier, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Aeolidiidae (Family)

Aeolus
     Aeolus Bergman, 1988 † (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Aeolus Eschscholtz in Thon, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Aeonia
 Aeonia J. Lindley, 1824 accepted as Oeonia J. Lindley, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Aeonia Burmeister, 1843 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Aepus
     Aepus Leach in Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Aepus LeConte, 1848 accepted as Acupalpus Latreille, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Aequidens
     Aequidens Eigenmann & Bray, 1894 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cichlidae (Family)
 Aequidens Steindachner, 1915 accepted as Astyanax Baird & Girard, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)

Aerenaea
     Aerenaea Dejean, 1835 accepted as Aerenea Thomson, 1857 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Aerenaea Thomson, 1857 accepted as Aerenea Thomson, 1857 (misspelling - incorrect original spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aerenica
     Aerenica Thomson, 1857 accepted as Recchia Lane, 1966 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Aerenica Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aeria
     Aeria Hübner, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Aeria Gistl, 1848 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
 Aeria O.F. Cook, 1901 accepted as Gaussia H. Wendland, 1865 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Aerope
     Aerope Desmarest, 1823 accepted as Aerope Desmarest, 1823 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Amphipoda (awaiting allocation) (Family)
 Aerope Thomson, 1877 accepted as Aeropsis Mortensen, 1907 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Aeropsidae (Family)
     Aerope Jeffreys, 1876 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Aeropsidae (Family)
 Aerope Martens, 1860 accepted as Natalina Pilsbry in Tryon & Pilsbry, 1893 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Rhytididae (Family)
 Aerope (Endlicher) H.G.L. Reichenbach, 1841 accepted as Aerope (Endlicher) H.G.L. Reichenbach, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Rhizophoraceae (Family)
     Aerope White, 1847 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Decapoda (awaiting allocation) (Family)

Aërope
     Aërope (Endlicher) H.G.L. Reichenbach, 1841 represented as Aerope (Endlicher) H.G.L. Reichenbach, 1841 (alternative representation)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Rhizophoraceae (Family)
 Aërope Jeffreys, 1876 accepted as Aerope Jeffreys, 1876 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Aeropsidae (Family)
     Aërope (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pleocyemata incertae sedis (Family)

Aeroppia
     Aeroppia Balogh, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Oppiidae (Family)
     Aeroppia Hammer, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Oppiidae (Family)

Aeropsis
     Aeropsis Mortensen, 1907 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Aeropsidae (Family)
 Aeropsis P. Ascherson & P. Graebner, 1899 accepted as Airopsis Desvaux, 1809 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Aesalon
     Aesalon Morris in Wood, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Aesalon Kaup, 1829 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Aeschnopsis
     Aeschnopsis Handlirsch, 1939 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Mesuropetalidae (Family)
 Aeschnopsis Cowley, 1942 † accepted as Aeschnopsis Handlirsch, 1939 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Mesuropetalidae (Family)

Aeschrus
     Aeschrus Spinola, 1850 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Aeschrus Dallas, 1851 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Aeschyntelus
     Aeschyntelus Stål, 1872 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Aeschyntelus Waterhouse, 1876 accepted as Ascetoderes Pope, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bothrideridae (Family)

Aessus
 Aessus Stephens, 1829 accepted as Aepus Leach in Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Aessus Dejean (?), 1821 accepted as Aessus Dejean (?), 1821 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Aesthetydeus
     Aesthetydeus André, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tydeidae (Family)
     Aesthetydeus André, 1979 accepted as Aesthetydeus André, 1980 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tydeidae (Family)

Aethalion
 Aethalion Münster, 1842 † accepted as Anaethalion White, 1938 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Elopiformes (Order) > Anaethalionidae (Family)
 Aethalion Herrmannsen, 1846 accepted as Ethalion Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Aethalion Lepeletier & Serville, 1828 accepted as Aetalion Latreille in Humboldt, 1809 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aetalionidae (Family)

Aethalium
 Aethalium Link, 1809 accepted as Fuligo A. Haller, 1768 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxomycetes (Class) > Physarales (Order) > Physaraceae (Family)
 Aethalium Oken, 1817 accepted as Aetalion Latreille in Humboldt, 1809 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aetalionidae (Family)

Aethalodes
 Aethalodes Hulst, 1896 accepted as Aethaloida McDunnough, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Aethalodes Gahan, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Aethalodes Thomas, 1923 accepted as Aethalops Thomas, 1923 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Pteropodidae (Family)
     Aethalodes Kriechbaumer, 1890 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Aethaloptera
     Aethaloptera Brauer, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Hydropsychidae (Family)
 Aethaloptera Hulst, 1896 accepted as Aethalura McDunnough, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Aethecerus
     Aethecerus Wesmael, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Aethecerus Chevrolat, 1862 accepted as Aethecerinus Fall & Cockerell, 1907 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aetheolepis
     Aetheolepis Warren, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Aetheolepis Woodward, 1895 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pholidophoriformes (Order) > Archaeomaenidae (Family)

Aethephyllum
     Aethephyllum N.E. Brown, 1928 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
     Aethephyllum Xu & Chen in Xu, Wang, Chen & Shi, 1987 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)

Aetheria
 Aetheria Oken, 1818 accepted as Etheria Lamarck, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Etheriidae (Family)
 Aetheria S.F.L. Endlicher, 1837 accepted as Stenorrhynchos L.C. Richard ex K.P.J. Sprengel, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Aetheria Agassiz, 1846 accepted as Aetheria Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Aethes
 Aethes Chevrolat, 1883 accepted as Billbergia Blackwelder, 1947 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
     Aethes Billberg, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Aethia
     Aethia Qian & Zhou, 1984 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Aethia Merrem, 1788 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Alcidae (Family)
     Aethia Hübner, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Aethiopocassis
     Aethiopocassis Spaeth, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Aethiopocassis Spaeth, 1924 accepted as Aethiopocassis Spaeth, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Aethiopodillo
     Aethiopodillo Taiti, Paoli & Ferrara, 1998 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Isopoda (awaiting allocation) (Family)
 Aethiopodillo Verhoeff, 1942 accepted as Aethiopodillo Taiti, Paoli & Ferrara, 1998 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Armadillidae (Family)

Aethiops
 Aethiops Martin, 1841 accepted as Cercocebus Geoffroy, 1812 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Cercopithecidae (Family)
 Aethiops Strickland, 1841 accepted as Nigrita Fraser, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Passeridae (Family)

Aethiopsar
     Aethiopsar Sharpe, 1890 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Aethiopsar Oates, 1889 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Aethon
 Aethon Agassiz, 1846 accepted as Diphucrania Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Aethon Krøyer, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Lernanthropidae (Family)

Aethotaxis
     Aethotaxis DeWitt, 1962 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Nototheniidae (Family)
     Aethotaxis Baesemann, 1973 † accepted as Ubinates Baesemann & Purnell, 2000 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Ozarkodinida (Order) > Spathognathodontidae (Family)

Aethra
     Aethra Latreille in Cuvier, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Aethridae (Family)
 Aethra Agassiz, 1846 accepted as Ethra Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lampyridae (Family)

Aethria
     Aethria Hübner, 1821 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Aethria Tosquinet, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Aethria Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Aethriostoma
 Aethriostoma Motschoulsky, 1858 accepted as Attagenus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Aethriostoma Mroczkowski, 1968 accepted as Attagenus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Aethurus
 Aethurus Simon, 1897 accepted as Aethurus Simon, 1897 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Aethurus de Winton, 1898 accepted as Zenkerella Matschie, 1898 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Anomaluridae (Family)

Aethusa
     Aethusa Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Aethusa Guérin in Brullé, 1832 accepted as Ethusa Roux, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Ethusidae (Family)

Aethyia
 Aethyia Agassiz, 1846 accepted as Aethyia Agassiz, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Aethyia Gloger, 1827 accepted as Aythya Boie, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Anseriformes (Order) > Anatidae (Family)

Aetia
 Aetia Chambers, 1880 accepted as Haplochrois Meyrick, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Elachistidae (Family)
 Aetia Adanson, 1763 accepted as Combretum Loefling, 1758 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Combretaceae (Family)
     Aetia Agassiz, 1846 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)

Aëtia
 Aëtia Agassiz, 1846 accepted as Aetia Agassiz, 1846 · Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
     Aëtia Adanson, 1763 represented as Aetia Adanson, 1763 (alternative representation)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Combretaceae (Family)

Aetideus
     Aetideus Brady, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Aetideidae (Family)
 Aetideus Giesbrecht in Giesbrecht & Schmeil, 1898 accepted as Aetideus Giesbrecht in Giesbrecht & Schmeil, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Aetideidae (Family)

Aetius
     Aetius O. Pickard-Cambridge, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Corinnidae (Family)
 Aetius Distant, 1901 accepted as Atelias Kirkaldy, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Aetobatis
 Aetobatis Müller & Henle, 1837 accepted as Aetobatus Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Myliobatidae (Family)
 Aetobatis de Blainville, 1828 accepted as Aetobatus Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Myliobatidae (Family)

Aetosaurus
 Aetosaurus Lydekker, 1888 † accepted as Acteosaurus Meyer, 1860 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Dolichosauridae (Family)
     Aetosaurus Fraas, 1877 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Aetus
 Aetus Riemann, 1838 accepted as Aetos Nitzsch, 1833 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Aetus Morris, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Afghancephalites
     Afghancephalites Weippert & Wolfart, 1968 † accepted as Afghancephalites Weippert & Wolfart, 1968 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Afghancephalites Wolfart, 1970 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Africacarus
     Africacarus Viets, 1962 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Hygrobatidae (Family)
 Africacarus Wallwork, 1965 accepted as Farchacarus Wallwork, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Ceratozetidae (Family)

Africana
     Africana Travassos, 1920 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Heterakidae (Family)
 Africana Ocaña & Brito in Ocaña et al., 2015 accepted as Euafricana Ceccolini & Cianferoni, 2021 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Caryophylliidae (Family)

Africanthropus
 Africanthropus Weinert, 1938 † accepted as Homo Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Hominidae (Family)
 Africanthropus Dreyer, 1935 † accepted as Homo Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Hominidae (Family)

Africasia
 Africasia Rohdendorf, 1934 accepted as Africasiomyia Rohdendorf, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
     Africasia Viets, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Athienemanniidae (Family)

Afrindella
     Afrindella Annandale, 1912 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
     Afrindella Wiebach, 1964 · Animalia (Kingdom) > Bryozoa (Phylum) > Phylactolaemata (Class) > Plumatellida (Order) > Pectinatellidae (Family)

Afrocrania
     Afrocrania Hincks, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Afrocrania (Harms) J. Hutchinson, 1942 accepted as Cornus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cornales (Order) > Cornaceae (Family)

Afrogyrus
 Afrogyrus Brinck, 1956 accepted as Aulonogyrus Motschulsky, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Gyrinidae (Family)
 Afrogyrus Brown & Mandahl-Barth, 1973 accepted as Africanogyrus Özdikmen & Darılmaz, 2007 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)

Afrolimnadia
     Afrolimnadia Tasch, 1987 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Diplostraca (Order) > Lioestheriidae (Family)
 Afrolimnadia Rogers, Rabet & Weeks, 2012 accepted as Gondwanalimnadia Rogers, Rabet & Weeks, 2016 · Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Diplostraca (Order) > Limnadiidae (Family)

Afrololigo
     Afrololigo Brakoniecki, 1986 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Myopsida (Order) > Loliginidae (Family)
 Afrololigo Alexeyev, 1992 accepted as Lolliguncula Steenstrup, 1881 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Myopsida (Order) > Loliginidae (Family)

Afromelitta
 Afromelitta Michez & Kuhlmann in Michez, Kuhlmann & Dellicour, 2014 accepted as Melitta Kirby, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Melittidae (Family)
     Afromelitta Dellicour, Lecocq, Kuhlmann, Mardulyn & Michez, 2014 accepted as Afromelitta Michez & Kuhlmann in Michez, Kuhlmann & Dellicour, 2014 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Melittidae (Family)

Afrophthalma
     Afrophthalma Medvedev, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Afrophthalma Medvedev, 1980 accepted as Afrophthalma Medvedev, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Afroptilum
     Afroptilum Gillies, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Baetidae (Family)
 Afroptilum Darge, 2003 accepted as Adafroptilum Darge, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)

Afrorhytida
     Afrorhytida Möllendorff, 1903, nom. nud. accepted as Afrorhytida Möllendorff, 1903 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Rhytididae (Family)
     Afrorhytida Möllendorff, 1903 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Rhytididae (Family)

Afrosoma
     Afrosoma Mazur, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
     Afrosoma Wilcox, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Afrotis
     Afrotis Bonaparte, 1854 accepted as Eupodotis Lesson, 1839 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Gruiformes (Order) > Otididae (Family)
 Afrotis Gray, 1855 accepted as Eupodotis Lesson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Gruiformes (Order) > Otididae (Family)

Afzelia
 Afzelia J.F. Gmelin, 1792 accepted as Afzelia J.F. Gmelin, 1792 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
     Afzelia Robineau-Desvoidy, 1863 accepted as Afzelia Robineau-Desvoidy, 1863 (nomen dubium)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Afzelia J.E. Smith, 1798 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Agacinosia
     Agacinosia Collado & Alonso-Zarazaga, 1996 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Aderidae (Family)
     Agacinosia Báguena Corella, 1948 accepted as Agacinosia Collado & Alonso-Zarazaga, 1996 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Aderidae (Family)

Agaeocera
     Agaeocera Saunders, 1871 accepted as Agaeocera Saunders, 1871 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Agaeocera Waterhouse, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Agalma
 Agalma Miquel, 1856 accepted as Schefflera J.R. Forster & J.G.A. Forster, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)
     Agalma Martens in Albers, 1860 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Agalma Eschscholtz, 1825 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Agalmatidae (Family)

Agama
     Agama Blake, 1871 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Mutillidae (Family)
     Agama Gervais, 1842 accepted as Agama Gervais, 1842 (nomen nudum)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)
     Agama Daudin, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Agamidae (Family)

Agamus
     Agamus Oken, 1815 accepted as Agamus Oken, 1815 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Agamus A.G. Vologdin, 1970 † · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Cyanophyceae (awaiting allocation) (Order) > Agamaceae (Family)
 Agamus Giebel, 1872 accepted as Agamus Giebel, 1872 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Trogoniformes (Order) > Trogonidae (Family)

Aganis
 Aganis Link, 1830 accepted as Aganis Link, 1830 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Aganis von Buch, 1834 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Aganopeste
     Aganopeste J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Aganopeste J.M.H. Shaw, 2004 accepted as Aganopeste J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Agaocephala
     Agaocephala LePeletier & Serville, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Agaocephala Mannerheim, 1829 accepted as Agaocephala LePeletier & Serville, 1828 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Agapeta
     Agapeta Hübner, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Agapeta Heine, 1863 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)

Agapete
 Agapete Hübner, 1825 accepted as Agapeta Hübner, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Agapete Newman, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Agapetes
 Agapetes Billberg, 1820 accepted as Agapetes Billberg, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Agapetes D. Don ex G. Don, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)

Agapetus
     Agapetus Dejean, 1834 accepted as Agapetus Dejean, 1834 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Agapetus Curtis, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Glossosomatidae (Family)

Agapophyta
 Agapophyta Laporte, 1832 accepted as Agapophyta Guérin, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tessaratomidae (Family)
     Agapophyta Guérin, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tessaratomidae (Family)

Agapostemon
     Agapostemon Guérin-Méneville, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Halictidae (Family)
     Agapostemon Smith, 1853 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Agardhia
 Agardhia A. Cabrera, 1823 accepted as Codium Stackhouse, 1797 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Codiaceae (Family)
 Agardhia K.P.J. Sprengel, 1824 accepted as Qualea Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Vochysiaceae (Family)
 Agardhia S.F. Gray, 1821 accepted as Mougeotia C.A. Agardh, 1824 · Plantae (Kingdom) > Charophyta (Phylum) > Zygnematophyceae (Class) > Zygnematales (Order) > Zygnemataceae (Family)
     Agardhia Gude, 1911 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Pupillidae (Family)
 Agardhia Meneghini, 1838 accepted as Phymatolithon Foslie, 1898 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Hapalidiales (Order) > Hapalidiaceae (Family)

Agardhiella
     Agardhiella F. Schmitz, 1897 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Solieriaceae (Family)
     Agardhiella Hesse, 1923 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Argnidae (Family)

Agaria
 Agaria Gray, 1847 accepted as Cardiocardita Anton, 1838 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Carditidae (Family)
     Agaria Gray, 1840 accepted as Agaria Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Carditidae (Family)

Agaricites
     Agaricites Meschinelli, 1891 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
 Agaricites Milne-Edwards, 1860 accepted as Agaricia Lamarck, 1801 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Agariciidae (Family)

Agaricum
 Agaricum Paulet, 1812 accepted as Fomitopsis P.A. Karsten, 1881 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Fomitopsidaceae (Family)
 Agaricum P. Micheli ex Maratti, 1822 accepted as Fomitopsis P.A. Karsten, 1881 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Fomitopsidaceae (Family)

Agaricus
 Agaricus Rafinesque, 1830 accepted as Amanita Persoon, 1797 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Amanitaceae (Family)
 Agaricus Linnaeus ex Murrill, 1905 accepted as Daedalea Persoon, 1801 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Fomitopsidaceae (Family)
     Agaricus Linnaeus, 1753 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Agaricaceae (Family)

Agarista
     Agarista Leach, 1814 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Agarista D. Don ex G. Don, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
 Agarista A.P. de Candolle, 1836 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Agarites
     Agarites G. Saporta, 1890? † (uncertain)· Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
 Agarites L. Agassiz, 1841 accepted as Arbacia Gray, 1835 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Arbacioida (Order) > Arbaciidae (Family)

Agarum
 Agarum Link, 1809 accepted as Phycodrys Kützing, 1843 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Delesseriaceae (Family)
     Agarum Dumortier, 1822 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Laminariales (Order) > Agaraceae (Family)
 Agarum Bory de Saint-Vincent, 1826 accepted as Agarum Dumortier, 1822 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Laminariales (Order) > Agaraceae (Family)

Agassizia
 Agassizia Vetter, 1881 † accepted as Asthenocormus Woodward, 1895 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pachycormiformes (Order) > Pachycormidae (Family)
     Agassizia Valenciennes in Du Petit-Thouars, 1846 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Prenasteridae (Family)
 Agassizia A. Gray & Engelmann, 1846 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Agassizia Thomson, 1883 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Anthozoa (awaiting allocation) (Order) > (Family)
 Agassizia Yoshiyasu, 1987 accepted as Agassiziella Yoshiyasu, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
     Agassizia Behr, 1870 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Agassizia Spach, 1835 accepted as Camissonia Link, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Onagraceae (Family)
     Agassizia Chavannes, 1833 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Agasta
     Agasta Hope, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Agasta Miers, 1875 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Lecythidaceae (Family)

Agasthenes
     Agasthenes Förster, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Agasthenes Bates, 1873 accepted as Agastenes Lucas, 1920 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Agathamminoides
 Agathamminoides Zaninetti, 1969 † accepted as Gsollbergella Zaninetti, 1979 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Ophthalmidiidae (Family)
     Agathamminoides Vangerow, 1964 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Ammodiscidae (Family)

Agathidium
 Agathidium Illiger in Kugelann, 1798 accepted as Agathidium Panzer · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
     Agathidium Panzer · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)

Agathilla
 Agathilla Norman, 1900 accepted as Agathylla Adams, 1855 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
     Agathilla Westwood, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Agathina
     Agathina White, 1843 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Agathina Rafinesque, 1831 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Agathina Férussac, 1807 accepted as Achatina Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Achatinidae (Family)

Agathinus
 Agathinus Paetel, 1888 accepted as Agathirses Montfort, 1808 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Siliquariidae (Family)
     Agathinus Broun, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Belidae (Family)

Agathiphyllia
 Agathiphyllia † accepted as Agathyphyllia Reuss, 1864 · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Agathiphyllia Reuss, 1863 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Agathis
     Agathis Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
     Agathis R.A. Salisbury, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Araucariales (Order) > Araucariaceae (Family)

Agathocrinus
     Agathocrinus Schevchenko, 1967 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)
     Agathocrinus Stoddart, 1876 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Monobathrida (Order) > Monobathrida (awaiting allocation) (Family)

Agathodes
     Agathodes Guenée, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Agathodes Portevin, 1926 accepted as Stetholiodes Fall, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)

Agathomyia
     Agathomyia Verrall, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Platypezidae (Family)
     Agathomyia Reinhard, 1959 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Agathoxylon
     Agathoxylon Hartig, 1848 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Araucariales (Order) > Araucariaceae (Family)
 Agathoxylon P. Greguss, 1952 † accepted as Agathoxylon Hartig, 1848 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Araucariales (Order) > Araucariaceae (Family)

Agathyrsus
     Agathyrsus D. Don, 1829 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Agathyrsus Herrmannsen, 1846 accepted as Agathirses Montfort, 1808 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Siliquariidae (Family)

Agaura
     Agaura Burmeister, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Agaura Brunner, 1891 accepted as Agaurella Uvarov, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Agavites
 Agavites R. de Visiani, 1869 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliopsida (awaiting allocation) (Order) > (Family)
     Agavites H. Abich, 1859 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)

Agdestis
     Agdestis Moçiño & Sessé ex A.P. de Candolle, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Sarcobataceae (Family)
     Agdestis Séguy, 1937 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)

Agelaea
     Agelaea Géne, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Agelaea Agassiz, 1846 accepted as Agelaia Lepeletier de St Fargeau, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)
     Agelaea Solander ex J.E. Planchon, 1850 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Connaraceae (Family)

Agelastica
 Agelastica Redtenbacher, 1845 accepted as Agelastica Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Agelastica Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Agelenopsis
     Agelenopsis Simon, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Agelenidae (Family)
     Agelenopsis Giebel, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Agelenidae (Family)

Agelia
     Agelia Rafinesque, 1815 accepted as Agelia Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Agelia Laporte & Gory, 1835-36 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Agenia
     Agenia Descourtilz, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Agenia Schiödte, 1837 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pompilidae (Family)

Agenius
 Agenius Lepeletier & Serville, 1825 accepted as Campulipus Kirby, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Agenius Agassiz, 1846 accepted as Ageneiosus Lacepède, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Auchenipteridae (Family)

Agenor
     Agenor Rafinesque, 1815 accepted as Agenor Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Agenor Castelnau, 1879 accepted as Scorpis Valenciennes in Cuvier & Valenciennes, 1832 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Kyphosidae (Family)
 Agenor Dallas, 1851 accepted as Neagenor Bergroth, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
 Agenor Risso, 1827 accepted as Argulus O.F. Müller, 1785 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Arguloida (Order) > Argulidae (Family)

Agenora
     Agenora D. Don, 1829 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Agenora Cameron, 1909 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Ageratina
 Ageratina O. Hoffmann in Engler, 1900 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Ageratina Spach, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Ageratum
     Ageratum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Ageratum P. Miller, 1754 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Ageria
     Ageria Abbass, 1973 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Ageria Adanson, 1763 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Aquifoliales (Order) > Aquifoliaceae (Family)
 Ageria Rafinesque, 1838 accepted as Ilex Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Aquifoliales (Order) > Aquifoliaceae (Family)

Agerina
     Agerina Tjernvik, 1956 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Proetida (awaiting allocation) (Family)
     Agerina Farinacci, 1991 † (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Foraminifera (awaiting allocation) (Class) > (Order) > (Family)
 Agerina Crusafont-Pairo, 1967 † accepted as Agerinia Crusafont Pairó, 1973 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Adapidae (Family)

Agerochus
     Agerochus Rafinesque, 1815 [2] accepted as Agerochus Rafinesque, 1815 [2] (nomen nudum)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Agerochus Rafinesque, 1815 accepted as Agerochus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Agetus
 Agetus Chapuis in Lacordaire, 1874 accepted as Agetinus Lefèvre, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Agetus Krøyer, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Corycaeidae (Family)

Agina
 Agina Turton, 1822 accepted as Hiatella Bosc, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Hiatellidae (Family)
     Agina Necker ex Post & O. Kuntze, 1903 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)

Aglae
     Aglae Lepeletier & Serville, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
 Aglae Dulac, 1867 accepted as Najas Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Hydrocharitaceae (Family)

Aglaia
     Aglaia Swainson, 1827 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Aglaia Renier, 1804 accepted as Aglaia Renier, 1804 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Aglaia Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Meliaceae (Family)
 Aglaia Brady, 1868 accepted as Aglaiocypris Sylvester-Bradley, 1947 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Candonidae (Family)
     Aglaia Renier, 1807 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Aglaia Dalla Torre, 1904 accepted as Agelaia Lepeletier de St Fargeau, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)
 Aglaia F. Allamand, 1770 accepted as Aglaia F. Allamand, 1770 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
     Aglaia Müller, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Candonidae (Family)

Aglaja
     Aglaja Albers, 1850 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Aglaja Eschscholtz, 1825 accepted as Abylopsis Chun, 1888 · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Aglaja Renier, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Aglajidae (Family)

Aglaomorpha
     Aglaomorpha H.W. Schott, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Polypodiaceae (Family)
     Aglaomorpha Koda, 1987 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Aglaope
 Aglaope Rafinesque, 1814 accepted as Lysmata Risso, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Hippolytidae (Family)
     Aglaope Latreille, 1809 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Zygaenidae (Family)

Aglaostola
     Aglaostola Saunders, 1871 accepted as Aglaostola Saunders, 1871 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Aglaostola Thomson, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Aglaura
 Aglaura Oken, 1816 accepted as Aglaura Oken, 1816 · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Aglaura Savigny in Lamarck, 1818 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Aciculata (Order) > Oenonidae (Family)
 Aglaura Doyère, 1841 accepted as · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Aciculata (Order) > Oenonidae (Family)
 Aglaura Herrich-Schaffer, 1849 accepted as Zeuxidia Hübner, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Aglaura Gistl, 1848 accepted as Aglaura Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Aglaura Westwood in Doubleday & Westwood, 1851 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Aglaura Rafinesque, 1815 accepted as Aglaura Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Aglaura Péron & Lesueur, 1810 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Trachylina (Order) > Rhopalonematidae (Family)

Aglia
     Aglia Ochsenheimer, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
 Aglia Gray, 1847 accepted as Aglia Gray, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Aglypha
 Aglypha Mulsant & Rey, 1874 accepted as Dinaraea Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Aglypha Mulsant & Rey, 1873 accepted as Dinaraea Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Aglyptosternon
     Aglyptosternon Bleeker, 1862, nom. nud. accepted as Glyptothorax Blyth, 1860 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Sisoridae (Family)
 Aglyptosternon Bleeker, 1862 accepted as Glyptothorax Blyth, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Sisoridae (Family)

Aglyptus
 Aglyptus Leconte, 1866 accepted as Aglyptinus Cockerell, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
     Aglyptus Förster, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
 Aglyptus Ashmead, 1900 accepted as Aglyptus Ashmead, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Agnaeformia
     Agnaeformia Shatrovskiy, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)
 Agnaeformia Shatrovskiy in Shatrovskij, 1992 accepted as Agnaeformia Shatrovskiy, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)

Agnesia
     Agnesia F.O. Zuloaga & E.J. Judziewicz, 1993 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Agnesia Michaelsen, 1898 accepted as Agnezia C. Monniot & F. Monniot, 1991 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Agneziidae (Family)
 Agnesia Lokay, 1907 accepted as Sognorus Reitter, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Agnesia Attems, 1953 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Paradoxosomatidae (Family)
     Agnesia Koninck, 1883 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Porcelliidae (Family)

Agnus
     Agnus Burmeister, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
 Agnus Günther, 1860 accepted as Astroscopus Brevoort in Gill, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Uranoscopidae (Family)

Agonia
     Agonia Förster, 1862 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Agonia Weise, 1905 accepted as Agonita Strand, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Agonis
     Agonis Felder, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Callidulidae (Family)
     Agonis (A.P. de Candolle) Sweet, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Agonium
     Agonium A.S. Örsted, 1844 · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
 Agonium Solier in Gay, 1849 accepted as Agonum Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Agonodemus
 Agonodemus de Chaudoir, 1838 accepted as Pterostichus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Agonodemus Reitter, 1896 accepted as Pterostichus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Agonoderus
 Agonoderus Gemminger & Harold, 1868 accepted as Pterostichus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Agonoderus Dejean, 1829 accepted as Stenolophus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Agonopsis
 Agonopsis Semenov, 1889 accepted as Agonops Bousquet, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Agonopsis Gill, 1861 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Agonidae (Family)

Agonosoma
 Agonosoma Guérin-Méneville, 1838 accepted as Chrysosoma Guérin, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
     Agonosoma Laporte, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Scutelleridae (Family)

Agonum
     Agonum Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Agonum Stephens, 1827 accepted as Agonum Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Agorius
     Agorius Thorell, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Agorius Simon, 1901 accepted as Agorius Thorell, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Agostenus
 Agostenus Fischer von Waldheim, 1829 accepted as Chlaenius Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Agostenus Motschoulsky, 1850 accepted as Agostenus Fischer von Waldheim, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Agrammodes
 Agrammodes Warren, 1911 accepted as Pseudomaenas Prout, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Agrammodes Uhler in Gillette & Baker, 1895 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Agrapha
     Agrapha Gumppenberg, 1887 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Agrapha Hübner, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Agraphis
     Agraphis Link, 1829 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
 Agraphis Guignot, 1954 accepted as Platambus Thomson, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Agraphus
 Agraphus Schoenherr, 1833 accepted as Agraphus Say, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Agraphus Schoenherr, 1834 accepted as Agraphus Say, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Agraphus Say, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Agrestia
 Agrestia J.W. Thomson, 1961 accepted as Aspicilia A. Massalongo, 1852 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Pertusariales (Order) > Megasporaceae (Family)
 Agrestia accepted as Agrestis Bubani, 1901 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Agreuter
 Agreuter Schmidt-Goebel, 1846 accepted as Oxycentrus Chaudoir, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Agreuter Lepeletier & Serville, 1828 accepted as Chlaenius Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Agria
     Agria Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
 Agria Yakobson & Bianki, 1905 accepted as Argia Rambur, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Coenagrionidae (Family)
     Agria Macquart, 1835 accepted as Agria Robineau-Desvoidy, 1830 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
     Agria Matheron, 1878 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Agricola
 Agricola Blasius, 1857 accepted as Microtus Schrank, 1798 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Cricetidae (Family)
     Agricola Bonaparte, 1854 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Agrilinus
     Agrilinus Mulsant, 1870 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Agrilinus Mulsant & Rey, 1869 accepted as Aphodius Illiger in Kugelann, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Agrilus
 Agrilus Gemminger & Harold, 1869 accepted as Paragrilus Saunders, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Agrilus Dahl, 1823 accepted as Agrilus Curtis, 1825 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Agrilus Curtis, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Agriochaeta
     Agriochaeta Enderlein, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
     Agriochaeta Pascoe, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Agriocnemis
     Agriocnemis Selys, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Coenagrionidae (Family)
     Agriocnemis Selys in Pollen & Van Dam, 1869 accepted as Agriocnemis Selys, 1877 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Coenagrionidae (Family)

Agriodus
 Agriodus Péringuey, 1896 accepted as Nothodaptus Maindron, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Agriodus Smith, 1840 accepted as Otocyon Müller, 1836 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Canidae (Family)

Agrion
     Agrion Leach, 1815 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
     Agrion Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Agriidae (Family)

Agriope
     Agriope Rafinesque, 1815 accepted as Agriope Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Agriope Ragonot, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Agriopis
     Agriopis Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Agriopis Boisduval, 1840 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Agriotes
     Agriotes Eschscholtz in Thon, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
     Agriotes Jan, 1863 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Agriotherium
     Agriotherium Wagner, 1837 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Ursidae (Family)
 Agriotherium Scott, 1898 † accepted as Protoreodon Scott & Osborn, 1887 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Agriochoeridae (Family)

Agrius
     Agrius Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)
     Agrius Chevrolat, 1854 accepted as Picnochile Motschoulsky, 1856 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)

Agrochlaenius
 Agrochlaenius Lučnik, 1933 accepted as Agrochlaenius Basilewsky & Grundmann, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Agrochlaenius Basilewsky & Grundmann, 1954 accepted as Chlaenius Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Agroecus
     Agroecus Dallas, 1851 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
     Agroecus Chatanay, 1915 accepted as Agraecus Fairmaire in Alluaud, 1900 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Agronoma
 Agronoma Gistel, 1848 accepted as Amara Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Agronoma Hübner, 1826 accepted as Agrotis Ochsenheimer, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Agrophila
 Agrophila Agassiz, 1846 accepted as Agriphila Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Agrophila Lioy, 1864 accepted as Liriomyza Mik, 1894 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Agromyzidae (Family)
     Agrophila Boisduval, 1840 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Agrotis
 Agrotis Hübner, 1809-1813 accepted as Agrotis Ochsenheimer, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Agrotis Ochsenheimer, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Aguilaria
     Aguilaria Retana-Salazar & Soto-Rodríguez, 2007 accepted as Dioclesianothrips Retana-Salazar & Soto-Rodriguez, 2007 (misspelling - incorrect original spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)
     Aguilaria Taylor & Wells, 1994 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Pseudomelatomidae (Family)

Agylla
     Agylla Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Agylla Philippi, 1865 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
     Agylla Stål, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Agyriella
     Agyriella P.A. Saccardo, 1884 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Agyriella J.B. Ellis & B.M. Everhart, 1897 accepted as Schizoxylon Persoon, 1810 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Ostropales (Order) > Stictidaceae (Family)

Agyrtes
 Agyrtes Scudder, 1901 accepted as Argyrtes Saussure & Pictet, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Rhaphidophoridae (Family)
     Agyrtes Frölich, 1799 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Agyrtidae (Family)

Ahaetulla
     Ahaetulla Link, 1807 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Ahaetulla Gray, 1825 accepted as Ahaetulla Gray, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Ahmadia
     Ahmadia D.D. Pant & P.C. Srivastava, 1991 † · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Ahmadia H. Sydow, 1939 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Ahngeria
     Ahngeria Kokujew, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Ahngeria Melichar, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Ahrensia
     Ahrensia Uchino et al., 1999 · Bacteria (Kingdom) > Proteobacteria (Phylum) > Alphaproteobacteria (Class) > Rhodobacterales (Order) > Rhodobacteraceae (Family)
     Ahrensia Robineau-Desvoidy, 1863 accepted as Microsoma Macquart, 1855 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Aikinia
 Aikinia Wallich, 1832 accepted as Mnesithea Kunth, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Aikinia R. Brown in N. Wallich, 1832 accepted as Epithema Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Ailanthoxylon
     Ailanthoxylon U. Prakash, 1959 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Simaroubaceae (Family)
 Ailanthoxylon C.G.K. Ramanujam, 1960 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Simaroubaceae (Family)

Aillya
     Aillya Vriese, 1854 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Goodeniaceae (Family)
     Aillya Odhner, 1927 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Aillyidae (Family)

Ailsacrinus
     Ailsacrinus Mironov & Sorokina, 1998 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Millericrinida (Order) > Hyocrinidae (Family)
     Ailsacrinus Taylor, 1983 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Millericrinida (Order) > Millericrinida (awaiting allocation) (Family)

Ailuravus
     Ailuravus Rütimeyer, 1891 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Ischyromyidae (Family)
     Ailuravus Schlosser, 1916 † accepted as Sivanasua Pilgrim, 1931 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Lophocyonidae (Family)

Ailurops
     Ailurops Bonaparte, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Ailurops Wagler, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Diprotodontia (Order) > Phalangeridae (Family)

Ainia
     Ainia Lelesus, 1974 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Tabulata (Order) > Romingeriidae (Family)
 Ainia Jordan, 1919 † accepted as Callopterus Thiollière, 1858 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Actinopterygii incertae sedis (Order) > Actinopterygii incertae sedis (Family)

Ainoa
     Ainoa Männil, 1958 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Ainoa H.T. Lumbsch & I. Schmitt in H.T. Lumbsch et al., 2001 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Baeomycetales (Order) > Baeomycetales incertae sedis (Family)

Ainsworthia
 Ainsworthia Batista & Ciferri, 1962 accepted as Phaeosaccardinula P.C. Hennings, 1905 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Chaetothyriales (Order) > Chaetothyriaceae (Family)
     Ainsworthia Boissier, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Ainuathous
 Ainuathous Kishii, 1987 accepted as Medakathous Kishii, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
     Ainuathous Babai & Ôhira, 1956 accepted as Medakathous Kishii, 1964 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Ainudrilus
     Ainudrilus Wang & Erséus, 2003 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Naididae (Family)
     Ainudrilus Finogenova, 1982 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Naididae (Family)

Aiora
     Aiora I.C. Cookson & A. Eisenack, 1960 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > (Family)
 Aiora R.J. Davey, 1978 † accepted as Balteocysta L.E. Stover & W.R. Evitt, 1978 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > (Family)

Aira
 Aira Reitter, 1876 accepted as Airora Reitter, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)
     Aira Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Aithyia
 Aithyia Gloger, 1827 accepted as Aythya Boie, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Anseriformes (Order) > Anatidae (Family)
     Aithyia Bonaparte, 1838 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Aix
     Aix Boie, 1828 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Anseriformes (Order) > Anatidae (Family)
 Aix Agassiz, 1846 accepted as Aia Eyton, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Aizoon
 Aizoon J. Hill, 1756 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)
     Aizoon Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)

Ajax
 Ajax R.A. Salisbury ex A.H. Haworth, 1812 accepted as Narcissus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)
 Ajax Lesson, 1837 accepted as Eupetes Temminck in Temminck & Laugier, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Corvidae (Family)

Aka
 Aka de Laubenfels, 1936 accepted as Siphonodictyon Bergquist, 1965 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Haplosclerida (Order) > Phloeodictyidae (Family)
     Aka White, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cixiidae (Family)

Akaste
 Akaste Goldfuss, 1843 † accepted as Acaste Goldfuss, 1843 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Acastidae (Family)
     Akaste Gistl, 1848 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Holothuroidea (awaiting allocation) (Order) > Holothuroidea (awaiting allocation) (Family)

Akenomyces
     Akenomyces G. Arnaud ex D. Hornby, 1984 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricomycetes incertae sedis (Order) > Agaricomycetes incertae sedis (Family)
 Akenomyces G. Arnaud, 1954 accepted as Akenomyces G. Arnaud, 1954 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricomycetes incertae sedis (Order) > Agaricomycetes incertae sedis (Family)

Akentra
 Akentra L. Benjamin, 1847 accepted as Utricularia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lentibulariaceae (Family)
     Akentra Franciscolo, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scraptiidae (Family)

Akialoa
     Akialoa Olson & James, 1995 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Passeriformes (awaiting allocation) (Family)
     Akialoa Pratt in Scott et al., 2001 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)

Akidocheilus
     Akidocheilus Till, 1907 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Akidocheilus Shimansky, 1947 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Aktassia
     Aktassia Popov in Nazarov & Popov, 1976 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Acrotretida (Order) > Acrotretidae (Family)
     Aktassia Pritykina, 1968 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)

Ala
     Ala Staudinger, 1882 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Ala D.L. Szlachetko, 1995 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Ala Nalivkin, 1979 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Spiriferidae (Family)
     Ala Lockington, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Mithracidae (Family)

Alaca
     Alaca Böttger, 1911 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Alaca Oman, 1937 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Alacia
     Alacia Martens, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Halocyprida (Order) > Halocyprididae (Family)
     Alacia Poulsen, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Halocyprida (Order) > Halocyprididae (Family)

Alafia
 Alafia Maulik, 1936 accepted as Luperocella Jacoby, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Alafia Du Petit-Thouars, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Alampes
     Alampes Horváth, 1884 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Alampes Champion, 1896 accepted as Peralampes Johnson, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Alampetis
     Alampetis Martens, 1898 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Alampetis Thomson, 1878 accepted as Apateum Spinola, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Alania
     Alania Berge & Vader, 2001 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Stegocephalidae (Family)
     Alania Endlicher, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Boryaceae (Family)

Alanisia
     Alanisia Hupé, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Estaingiidae (Family)
     Alanisia Hupé in Piveteau, 1953, nom. nud. † accepted as Alanisia Hupé, 1953 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Estaingiidae (Family)

Alarconia
     Alarconia Glassell, 1938 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pinnotheridae (Family)
 Alarconia A.P. de Candolle, 1836 accepted as Wyethia Nuttall, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Alardus
 Alardus Busch, 1851 accepted as Micrura Ehrenberg, 1828 · Animalia (Kingdom) > Nemertea (Phylum) > Pilidiophora (Class) > Heteronemertea (Order) > Lineidae (Family)
     Alardus Distant, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Gerridae (Family)

Alaria
     Alaria Schrank, 1788 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Strigeidida (Order) > Diplostomatidae (Family)
 Alaria Morris & Lycett, 1851 † accepted as Dicroloma Gabb, 1868 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Aporrhaidae (Family)
 Alaria Zhao & Li, 2012 accepted as Sinoalaria Zhao & Li, 2014 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiosomatidae (Family)
     Alaria Greville, 1830 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Laminariales (Order) > Alariaceae (Family)
 Alaria Duncan, 1841 accepted as Adonisea Grote, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Alasia
     Alasia Furth & Zhaurova, 2010 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Alasia Enderlein, 1936 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Alaskadiscus
 Alaskadiscus Rohr, Frýda & Blodgett, 2003 † accepted as Alaskodiscus Rohr, Frýda & Blodgett, 2013 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca incertae sedis (Class) > Gastropoda/Monoplacophora incertae sedis (Order) > Tropidodiscidae (Family)
     Alaskadiscus Zhang in Zhang, Lu et al., 1980 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Agnostida (Order) > Eodiscidae (Family)

Alaskoceras
     Alaskoceras Miller & Kummel, 1945 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Tarphycerida (Order) > Tarphycerida (awaiting allocation) (Family)
     Alaskoceras Westermann, 1969 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Alasmodon
 Alasmodon Thomson, 1820 accepted as Alasmidonta Say, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
 Alasmodon Sowerby, 1824 accepted as Alasmodon Sowerby, 1824 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Alastor
     Alastor Weithofer, 1887 † accepted as Hipposideros Gray, 1831 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Hipposideridae (Family)
 Alastor Perty, 1852 accepted as Kerona Müller, 1786 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Oxytrichidae (Family)
     Alastor Lepeletier de St. Fargeau, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)
     Alastor Boisduval, 1869 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Alastor Weithofer, 1888 † accepted as Hipposideros Gray, 1831 (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Hipposideridae (Family)

Alata
     Alata Thorbiornsen, 1823 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Alata Walker, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Alata Linck, 1783 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Alatacythere
 Alatacythere Murray & Hussey, 1952 † accepted as Pterygocythereis Blake in Procter, 1933 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Trachyleberididae (Family)
     Alatacythere Murray & Hussey, 1942 † accepted as Alatacythere Murray & Hussey, 1942 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Trachyleberididae (Family)

Alataupleura
     Alataupleura Lisogor, 1977 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Alataupleura Lisogor, 1974 † accepted as Alataupleura Lisogor, 1974 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Alatavia
     Alatavia G.I. Rodionenko, 1999 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
     Alatavia Baitenov, 1974 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Alatospora
 Alatospora Shulman, Kovalyova & Dubina, 1979 accepted as Alataspora Schulman, Kovaleva & Dubina, 1979 · Animalia (Kingdom) > Cnidaria (Phylum) > Myxosporea (Class) > Bivalvulida (Order) > Alatasporidae (Family)
     Alatospora Ingold, 1942 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Leotiales (Order) > Leotiaceae (Family)

Alauda
 Alauda Daudin, 1816 accepted as Alauda Daudin, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Alauda Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Alaudidae (Family)

Alaudula
 Alaudula Schaufuss, 1889 accepted as Scydmaenus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Alaudula Hume, 1867 accepted as Alaudula Hume, 1867 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Alauna
     Alauna Goodsir, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Cumacea (Order) > Diastylidae (Family)
     Alauna Krøyer, 1846 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Albaidaplax
     Albaidaplax Garassino, Pasini & Castro, 2023 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Goneplacidae (Family)
     Albaidaplax Garassino, Pasini & Castro, 2013 † accepted as Albaidaplax Garassino, Pasini & Castro, 2023 † (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Goneplacidae (Family)

Albanella
 Albanella Harris & Lalicker, 1932 † accepted as · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Beyrichiidae (Family)
 Albanella Müller, 1914 accepted as Speonesiotes Jeannel, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)

Albaniana
     Albaniana Radoman, 1973 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Albaniana Rainbow & Pulleine, 1918 accepted as Euoplos Rainbow, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Idiopidae (Family)

Albardia
     Albardia Weele, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Stilbopterygidae (Family)
 Albardia Jakobson in Jakobson & Bianchi, 1904 accepted as Cerobasis Kolbe, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Trogiidae (Family)

Albatrossia
 Albatrossia Ludwig, 1905 accepted as Porcellanaster Wyville Thomson, 1877 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Paxillosida (Order) > Porcellanasteridae (Family)
 Albatrossia Jordan & Gilbert in Jordan & Evermann, 1898 accepted as Coryphaenoides Gunnerus, 1765 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Macrouridae (Family)

Albersia
     Albersia Adams in Wallace, 1865 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)
     Albersia Kunth, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Albertia
 Albertia Vozzhennikova, 1967 † accepted as · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Peridiniaceae (Family)
     Albertia Rondani, 1843 accepted as Rhamphina Macquart, 1835 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Albertia W.P. Schimper in Voltz, 1837(?) † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Albertia Thomson, 1878 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Anthozoa (awaiting allocation) (Order) > (Family)
 Albertia Tapparoni-Canefri, 1879 accepted as Albersia Adams in Wallace, 1865 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)
     Albertia Dujardin, 1838 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Dicranophoridae (Family)
 Albertia Regel & Schmalhausen, 1877 accepted as Kozlovia Lipsky, 1904 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Albertinia
     Albertinia K.P.J. Sprengel, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Albertinia de Lotto, 1971 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pseudococcidae (Family)

Albertisia
 Albertisia Issel, 1880 accepted as Truncatella Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Truncatellidae (Family)
     Albertisia Beccari, 1877 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Menispermaceae (Family)

Albertisiella
     Albertisiella Griffini, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Albertisiella Pierre ex Aubréville, 1964 accepted as Planchonella Pierre, 1890 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)

Albia
     Albia Thon, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Aturidae (Family)
 Albia Tischbein, 1846 accepted as Abia Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Cimbicidae (Family)

Albileberis
     Albileberis Hou in Hou & Tian, 1982 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Trachyleberididae (Family)
     Albileberis Hou, 1978 † accepted as Albileberis Hou, 1978 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Trachyleberididae (Family)

Albinia
     Albinia Robineau-Desvoidy, 1830 accepted as Albinia Robineau-Desvoidy, 1830 (nomen dubium)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Albinia Briosi, 1877 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Albionella
     Albionella Chickering, 1946 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Albionella Kabata, 1979 accepted as Neoalbionella Özdikmen, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Lernaeopodidae (Family)

Albizzioxylon
     Albizzioxylon A.A. Nikitin, 1935 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Albizzioxylon Ramanujam, 1960 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Albizzioxylon P. Greguss, 1969 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Albrechtia
     Albrechtia Taki, 1955 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Ischnochitonidae (Family)
     Albrechtia Carbonell & Descamps, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Albula
 Albula Bloch & Schneider, 1801 accepted as Albula Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Albuliformes (Order) > Albulidae (Family)
     Albula Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Albuliformes (Order) > Albulidae (Family)
 Albula Gronow, 1763 accepted as Albula Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Albuliformes (Order) > Albulidae (Family)
 Albula Osbeck, 1765 accepted as Salanx Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osmeriformes (Order) > Salangidae (Family)
 Albula Röding, 1798 accepted as Polinices Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Naticidae (Family)
 Albula Catesby, 1771 accepted as Mugil Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Mugilidae (Family)

Alburnus
     Alburnus Rafinesque, 1820 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Alburnus Catesby, 1771 accepted as Alburnus Catesby, 1771 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sciaenidae (Family)

Alcathous
     Alcathous Stål, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Alcathous Thomson, 1864 accepted as Alcathousiella Monné, 2005 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Alce
 Alce Smith, 1827 accepted as Alces Gray, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)
     Alce Vrolik, 1829 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Alce Frisch, 1775 accepted as Alces Gray, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)
 Alce Blumenbach, 1799 † accepted as Megaloceros Brookes, 1827 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)

Alcea
 Alcea P. Miller, 1754 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Alcea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Alcelaphus
 Alcelaphus Gloger, 1841 accepted as Alces Gray, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)
     Alcelaphus de Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Alcephalus
 Alcephalus Brooke, 1876 accepted as Alcelaphus de Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Alcephalus Sclater in Anderson, 1891 accepted as Alcelaphus de Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Alcheringa
     Alcheringa Walter, 1972 † · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > (Order) > (Family)
     Alcheringa Theischinger, 1994 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)

Alcides
 Alcides Wiedemann, 1823 accepted as Merus Gistl, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Alcides Hübner, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Uraniidae (Family)
 Alcides Schönherr in Sahlberg, 1823 accepted as Sternuchopsis Heller, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Alcidia
 Alcidia Woodworth, 1913 accepted as Euleia Walker, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
 Alcidia Westwood, 1879 accepted as Alcides Hübner, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Uraniidae (Family)
     Alcidia Bourguignat, 1889 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Alcidia Monterosato, 1890 accepted as Alvania Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)

Alcidiella
 Alcidiella Cossmann, 1921 accepted as Alvania Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)
 Alcidiella Thiele, 1929 accepted as Alvania Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)

Alcidion
     Alcidion Thomson, 1860 accepted as Nealcidion Monné, 1977 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Alcidion Sturm, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Alcidion Dejean, 1835 accepted as Alcidion Sturm, 1843 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Alcidion White, 1855 accepted as Alcidion Sturm, 1843 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Alcidis
 Alcidis Hübner, 1823 accepted as Alcides Hübner, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Uraniidae (Family)
     Alcidis Scudder, 1875 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Papilionidae (Family)

Alcidius
     Alcidius Boucard, 1895 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Alcidius Maes, 1998 accepted as Alcidion Sturm, 1843 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Alcimus
     Alcimus Loew, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Alcimus Dallas, 1851 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
 Alcimus Fairmaire, 1849 accepted as Aegus Macleay, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)

Alcina
     Alcina Clarke, 1976 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
 Alcina Cavanilles, 1791 accepted as Melampodium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Alcinoe
     Alcinoe Ménétriés, 1849 accepted as Alcinoeta Strand, 1929 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Alcinoe Della Chiaje, 1841 accepted as Leucothea Mertens, 1833 · Animalia (Kingdom) > Ctenophora (Phylum) > Tentaculata (Class) > Lobata (Order) > Leucotheidae (Family)
     Alcinoe Rang, 1828 · Animalia (Kingdom) > Ctenophora (Phylum) > Tentaculata (Class) > Lobata (Order) > Ocyropsidae (Family)
     Alcinoe Rafinesque, 1815 accepted as Alcinoe Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Alcinoeta
     Alcinoeta von Steven, 1865 accepted as Alcinoeta Strand, 1929 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Alcinoeta Strand, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Alcinous
     Alcinous Deyrolle, 1864 accepted as Aaaaba Bellamy, 2013 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Alcinous Costa, 1861 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Pycnogonida (Class) > Pantopoda (Order) > Pantopoda (awaiting allocation) (Family)

Alciopa
     Alciopa Audouin & Milne-Edwards in Cuvier, 1829 accepted as Alciopa Audouin & Milne-Edwards, 1833 (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Alciopidae (Family)
     Alciopa Audouin & Milne-Edwards, 1833 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Alciopidae (Family)

Alciope
 Alciope A.P. de Candolle in J. Lindley, 1836 accepted as Capelio B. Nordenstam, 2002 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Alciope Adams, 1861 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Alciope Viguier, 1886 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Alciopidae (Family)
 Alciope Rafinesque, 1814 accepted as Pontonia Latreille, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Palaemonidae (Family)

Alcippe
     Alcippe Blyth, 1844 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Alcippeidae (Family)
 Alcippe Hancock, 1849 accepted as Trypetesa Norman, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Apygophora (Order) > Trypetesidae (Family)
     Alcippe Gumppenberg, 1887 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Alcippoides
 Alcippoides Turquier & Carton, 1976 accepted as Tomlinsonia Turquier, 1985 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Apygophora (Order) > Trypetesidae (Family)
 Alcippoides Strand, 1928 accepted as Trypetesa Norman, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Apygophora (Order) > Trypetesidae (Family)

Alcis
     Alcis Curtis, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Alcis Gray, 1850 accepted as Alces Gray, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)

Alcmena
     Alcmena Koch, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Alcmena Stål, 1859 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Alcockia
     Alcockia Goode & Bean, 1896 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Ophidiiformes (Order) > Ophidiidae (Family)
 Alcockia Števčić, 2005 accepted as Alfredalcockia Števčić, 2011 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Epialtidae (Family)
 Alcockia Eguchi, 1968 accepted as Dendrophyllia de Blainville, 1830 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Dendrophylliidae (Family)

Alcyon
     Alcyon Boie, 1832 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Alcyon Blumenbach, 1803 accepted as Alcedo Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Alcedinidae (Family)

Alcyoncellum
 Alcyoncellum de Blainville, 1830 accepted as Corbitella Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Euplectellidae (Family)
 Alcyoncellum Quoy & Gaimard, 1833 accepted as Corbitella Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Euplectellidae (Family)

Alcyone
     Alcyone Swainson, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Alcedinidae (Family)
     Alcyone Kraatz, 1865 accepted as Alcinoe Ménétriés, 1849 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Alcyonidium
     Alcyonidium J.V.F. Lamouroux, 1813 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Ctenostomatida (Order) > Alcyonidiidae (Family)
 Alcyonidium auct. accepted as Alcyonium Linnaeus, 1758 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Alcyoniidae (Family)

Alcyonium
     Alcyonium W. Hisinger, 1823 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Alcyonium Linnaeus, 1758 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Alcyoniidae (Family)
 Alcyonium Pallas, 1766 accepted as Botryllus Gaertner, 1774 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Styelidae (Family)

Alcyonum
 Alcyonum Rafinesque, 1815 accepted as Alcyonium Linnaeus, 1758 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Alcyoniidae (Family)
     Alcyonum Risso, 1826 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Aldanella
     Aldanella P.N. Kolosov, 1966 † (uncertain)· Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Rivulariaceae (Family)
     Aldanella Vostokova, 1962 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Helcionelloida (Class) > Pelagiellifomes (Order) > Aldanellidae (Family)

Aldania
     Aldania Moore, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Aldania V.A. Samylina, 1956 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadales (Order) > Cycadales (awaiting allocation) (Family)
     Aldania Krylov, 1969 † · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Acrescentida (Order) > Alterniidae (Family)
     Aldania Vassiljeva, 1985 † · Animalia (Kingdom) > Animalia incertae sedis (Phylum) > Coeloscleritophora (Class) > Chancelloriida (Order) > Chancelloriida (awaiting allocation) (Family)

Alderia
     Alderia Lahille, 1888 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Urochordata (awaiting allocation) (Class) > Urochordata (awaiting allocation) (Order) > Urochordata (awaiting allocation) (Family)
     Alderia Allman, 1845 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sacoglossa (Order) > Limapontiidae (Family)
     Alderia Thompson, 1844 accepted as Alderia Allman, 1845 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sacoglossa (Order) > Limapontiidae (Family)

Alderina
     Alderina Norman, 1903 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Calloporidae (Family)
 Alderina Pruvot-Fol, 1954 accepted as Alderella Odhner in Franc, 1968 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sacoglossa (Order) > Limapontiidae (Family)

Aldina
 Aldina Adanson, 1763 accepted as Aldina Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Aldina Endlicher, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Aldina E.H.F. Meyer, 1836 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Aldina Angiolini, 1995 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Allorhynchidae (Family)

Aldingeria
 Aldingeria Gross, 1942 † accepted as Moythomasia Gross, 1950 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Palaeonisciformes (Order) > Palaeonisciformes (awaiting allocation) (Family)
     Aldingeria Moy-Thomas, 1942 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Aldinia
 Aldinia Rafinesque, 1840 accepted as Croton Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Aldinia Scopoli, 1777 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Aldrichia
     Aldrichia Coquillett, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)
     Aldrichia Palmer, 1937 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)
     Aldrichia Vaughan, 1900 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Caryophylliidae (Family)
     Aldrichia Theobald, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)

Aldrichiella
 Aldrichiella Rohdendorf, 1931 accepted as Aldrichina Townsend, 1934 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)
 Aldrichiella Hendel, 1911 accepted as Aldrichiomyza Hendel, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Milichiidae (Family)
     Aldrichiella Vaughan, 1903 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Caryophylliidae (Family)

Aldrovandia
     Aldrovandia Goode & Bean, 1896 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Notacanthiformes (Order) > Halosauridae (Family)
     Aldrovandia Enderlein, 1912 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Aldrovandia Števčić, 2005 accepted as Aldrovandiopanope Števčić, 2011 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthidae (Family)

Alebion
 Alebion Gray, 1867 accepted as Iophon Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Acarnidae (Family)
     Alebion Krøyer, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Caligidae (Family)

Alecto
 Alecto Heyden, 1883 accepted as Pterostichus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Alecto Lesson, 1831 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)
     Alecto Leach, 1815 accepted as (nomen dubium)· Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Comatulida (Order) > Comatulida (awaiting allocation) (Family)
 Alecto Agassiz, 1846 accepted as Alecton Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lampyridae (Family)
 Alecto Wagler, 1830 accepted as Notechis Boulenger, 1896 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)
 Alecto Lamouroux, 1821 accepted as Stomatopora Bronn, 1825 · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Stomatoporidae (Family)

Alector
 Alector Gray, 1855 accepted as Alector Gray, 1855 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)
 Alector Gistl, 1848 accepted as Cepheus Koch in Panzer, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Compactozetidae (Family)
     Alector Merrem, 1786 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Alector Oken, 1817 accepted as Alector Oken, 1817 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Cracidae (Family)

Alectoria
 Alectoria accepted as Alectoris Kaup, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)
     Alectoria Brunner von Wattenwyl, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Alectoria Acharius, 1810 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)
 Alectoria Link, 1833 accepted as Usnea Dillenius ex Adanson, 1763 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)

Alectoris
     Alectoris Kaup, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)
 Alectoris Gistl, 1848 accepted as Endomychus Panzer, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)

Alectorolophus
     Alectorolophus Brunner, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Alectorolophus Zinn, 1757 accepted as Rhinanthus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Orobanchaceae (Family)

Alectorurus
 Alectorurus Makino, 1908 accepted as Comospermum S. Rauschert, 1982 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
     Alectorurus W.P. Schimper, 1869 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
 Alectorurus Gloger, 1842 accepted as Alectrurus Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
 Alectorurus Agassiz, 1846 accepted as Alectorurus Agassiz, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Alectrura
 Alectrura Blyth, 1852 accepted as Alectura Latham, 1824 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Megapodiidae (Family)
 Alectrura Reichenbach, 1850 accepted as Alectrurus Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)

Alectryon
     Alectryon Cabanis, 1846 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Alectryon J. Gaertner, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
 Alectryon Melvill, 1918 accepted as Nassarius Duméril, 1805 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)

Alectura
 Alectura Swainson, 1837 accepted as Alectrurus Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
     Alectura Latham, 1824 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Megapodiidae (Family)

Alecturus
     Alecturus d'Orbigny & Lafresnay, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Alecturus Temminck, 1822 accepted as Alectrurus Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)

Aleioglyphesthus
 Aleioglyphesthus Herman, 2001 accepted as Glyphesthus Kraatz, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Aleioglyphesthus Scheerpeltz, 1975 accepted as Glyphesthus Kraatz, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Alema
     Alema Enderlein, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Coniopterygidae (Family)
     Alema Sharp, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Alena
     Alena Navás, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Raphidioptera (Order) > Raphidiidae (Family)
     Alena Gyulai, Saldaitis & Zilli, 2019 accepted as Aliona Gyulai, Saldaitis & Zilli, 2019 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Alena Polechová, Zicha & Rak, 2023 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Cyrtodontida (Order) > (Family)

Aleodorus
     Aleodorus Say, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Aleodorus Say, 1839 accepted as Aleodorus Say, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Alepis
 Alepis Agassiz, 1846 accepted as Alepes Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
     Alepis Van Tieghem, 1894 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Loranthaceae (Family)

Alepocephalus
     Alepocephalus Parr, 1952 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Alepocephalus Risso, 1820 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osmeriformes (Order) > Alepocephalidae (Family)

Aleposomus
 Aleposomus Roule (ex Brauer), 1915 accepted as Rouleina Jordan, 1923 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osmeriformes (Order) > Alepocephalidae (Family)
 Aleposomus Gill, 1884 accepted as Xenodermichthys Günther, 1878 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osmeriformes (Order) > Alepocephalidae (Family)

Alepyrum
 Alepyrum Hieronymus, 1873 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Restionaceae (Family)
 Alepyrum R. Brown, 1810 accepted as Centrolepis Labillardière, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Restionaceae (Family)

Aleria
     Aleria Marshall, 1874 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Aleria Stål, 1876 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Alestogrammus
 Alestogrammus Hoedeman, 1951 accepted as Bathyaethiops Fowler, 1949 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Alestidae (Family)
 Alestogrammus Hoedeman, 1956 accepted as Bathyaethiops Fowler, 1949 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Alestidae (Family)

Aletes
     Aletes Ibrahim, 1933 (uncertain)· Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Aletes J.M. Coulter & J.N. Rose, 1888 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Aletes Chapuis in Lacordaire, 1874 accepted as Alethaxius Lefèvre, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Aletes Lohmann, 1889 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Halacaridae (Family)
     Aletes G. Somers, 1953 † (uncertain)· Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Aletes Rafinesque, 1815 accepted as Aletes Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Aletes Carpenter, 1857 accepted as Thylacodes Guettard, 1770 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)

Aleuria
     Aleuria (E.M. Fries) Fuckel, 1870 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pyronemataceae (Family)
 Aleuria (E.M. Fries) Gillet, 1879 accepted as Peziza Dillenius ex E.M. Fries, 1822 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pezizaceae (Family)

Aleurina
     Aleurina Massee, 1898 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pyronemataceae (Family)
 Aleurina (P.A. Saccardo) P.A. Saccardo & P. Sydow in P.A. Saccardo, 1902 accepted as Peziza Dillenius ex E.M. Fries, 1822 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pezizaceae (Family)

Aleuroglyphus
     Aleuroglyphus Zachvatkin, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Acaridae (Family)
     Aleuroglyphus Zachvatkin, 1936 accepted as Aleuroglyphus Zachvatkin, 1941 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Acaridae (Family)

Alexandra
     Alexandra Bunge, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
 Alexandra R.H. Schomburgk, 1845 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Alexandrella
 Alexandrella E.V. Bykova, 1958 † accepted as Maylisoria Bykova, 1961 † · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Allogromiida (Order) > Maylisoriidae (Family)
     Alexandrella Chevreux, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Stilipedidae (Family)
 Alexandrella Tonnoir, 1926 accepted as Tonnoiraptera Alexander, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Limoniidae (Family)

Alexandria
 Alexandria Pfeffer, 1881 accepted as Clypeaster Lamarck, 1801 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Clypeasteroida (Order) > Clypeasteridae (Family)
 Alexandria Tomlin, 1926 accepted as Alexania Strand, 1928 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Epitoniidae (Family)
 Alexandria Obolkina, 1995 accepted as Kotinia Obolkina in Aescht, 2001 · Chromista (Kingdom) > Ciliophora (Phylum) > Prostomatea (Class) > Prostomatida (Order) > Prostomatida (awaiting allocation) (Family)

Alexandrina
     Alexandrina Otte & Perez-Gelabert, 2009 accepted as Hapithus Uhler, 1864 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Oecanthidae (Family)
 Alexandrina Hadži, 1938 accepted as Folliculinopsis Fauré-Fremiet, 1936 · Chromista (Kingdom) > Ciliophora (Phylum) > Heterotrichea (Class) > Heterotrichida (Order) > Folliculinidae (Family)

Alexia
 Alexia Stephens, 1833 accepted as Sphaerosoma Stephens, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Alexiidae (Family)
 Alexia Leach in Gray, 1847 accepted as Myosotella Monterosato, 1906 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ellobiida (Order) > Ellobiidae (Family)
     Alexia de Laever, 1979 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Alexia J.M. Anderson & H.M. Anderson, 2003 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Gymnospermae (awaiting allocation) (Class) > Alexiales (Order) > Alexiaceae (Family)

Alexina
     Alexina Edwards, 1929 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)
     Alexina Hottinger & Caus, 2009 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Meandropsinidae (Family)

Aleyrodes
     Aleyrodes Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aleyrodidae (Family)
 Aleyrodes Latreille, 1807 accepted as Aleyrodes Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aleyrodidae (Family)

Alfredia
     Alfredia Cassini in F. Cuvier, 1816 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Alfredia Bezzi, 1918 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Limoniidae (Family)

Alga
 Alga Adanson, 1763 accepted as Zostera Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Zosteraceae (Family)
 Alga Boehmer in C.G. Ludwig, 1760 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Potamogetonaceae (Family)

Algerina
     Algerina Kriz, 2008 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Antipleuroida (Order) > Spanilidae (Family)
 Algerina † accepted as Algeriana Majoran, 1989 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Algoa
 Algoa Castelnau, 1861 accepted as Coryphaena Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Coryphaenidae (Family)
     Algoa Brues, 1910 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Bethylidae (Family)
     Algoa Gray, 1840 accepted as Algoa Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Algol
     Algol Kirkaldy, 1901 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)
     Algol Sollas, 1888 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)

Alia
 Alia Dumont, 1817 accepted as Alca Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Laridae (Family)
 Alia Gray, 1830 accepted as Ailia Gray, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ailiidae (Family)
     Alia H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Columbellidae (Family)

Alibertia
     Alibertia Risbec, 1951 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)
     Alibertia A. Richard ex A.P. de Candolle, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Alicia
     Alicia Johnson, 1861 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Aliciidae (Family)
     Alicia Thomson, 1864 accepted as Egalicia Lane, 1974 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Alicia W.R. Anderson, 2006 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)
 Alicia Angas, 1868 accepted as Thraciopsis Tate & May, 1900 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Thraciidae (Family)

Aliciana
     Aliciana Clarke, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
     Aliciana Noguera, 2005 accepted as Alicianella Noguera, 2006 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Alicula
 Alicula Ehrenberg, 1831 accepted as Aliculastrum Pilsbry in Tryon & Pilsbry, 1896 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Haminoeidae (Family)
     Alicula Eichwald, 1830 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Scaphandridae (Family)

Alidus
     Alidus Gahan, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Alidus Boisduval in d'Urville, 1835 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Aliella
     Aliella M. Qaiser & H.W. Lack, 1986 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Aliella Ali, 1968 accepted as Synhimantus Railliet, Henry & Sisoff, 1912 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Acuariidae (Family)

Aliena
     Aliena Key, 1976 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Morabidae (Family)
     Aliena Betekhtina, 1998 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myalinida (Order) > Prokopievskiidae (Family)
     Aliena Breedy, McFadden & Cortés, 2023 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Pterogorgiidae (Family)

Alienosternus
     Alienosternus Martins, 1976 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Alienosternus Lackner, 2016 accepted as Phoxonotus Marseul, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Alienus
     Alienus Bridwell, 1919 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Alienus Handlirsch, 1906 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Paoliida (Order) > Blattinopsidae (Family)
     Alienus Galileo & Martins, 2010 accepted as Hosticus Galileo, Rosa & Santos-Silva, 2020 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Alifera
 Alifera Muir-Wood & Cooper, 1960 † accepted as Alitaria Cooper & Muir-Wood, 1967 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Marginiferidae (Family)
     Alifera Piette in d'Orbigny, 1891 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Aliger
     Aliger Howell, 1937 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
 Aliger Thiele, 1929 accepted as Lobatus Swainson, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Strombidae (Family)

Alima
     Alima Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Stomatopoda (Order) > Squillidae (Family)
 Alima Carus & Gerstaecker, 1868-1875 accepted as Alima Carus & Gerstaecker, 1868-1875 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Alimerichthus
     Alimerichthus Guérin-Méneville in Sagra, 1857 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Alimerichthus Claus, 1871 accepted as Harpiosquilla Holthuis, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Stomatopoda (Order) > Squillidae (Family)

Alina
     Alina Griveaud, 1976 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Alina Adanson, 1763 accepted as Hyperbaena Miers ex Bentham, 1861 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Menispermaceae (Family)
     Alina Risso, 1826 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Urochordata (awaiting allocation) (Class) > Urochordata (awaiting allocation) (Order) > Urochordata (awaiting allocation) (Family)
     Alina Récluz, 1842 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Alina Robineau-Desvoidy, 1863 accepted as Morellia Robineau-Desvoidy, 1830 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Alina Raciborski, 1909 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Alinaceae (Family)

Aline
     Aline Bonaparte, 1854 accepted as Aline Bonaparte, 1854 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Aline Gray, 1855 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Alinema
     Alinema Rasheed, 1963 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Philometridae (Family)
 Alinema Jogis, 1968 accepted as Rusguniella Seurat, 1919 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Acuariidae (Family)

Aliniella
 Aliniella J. Raynal, 1973 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
     Aliniella B.V. Skvortzov, 1958 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Peranemea (Class) > Natomonadida (Order) > Astasiidae (Family)

Alinostoma
 Alinostoma Jankowski in Small & Lynn, 1985 accepted as Pseudochilodonopsis Foissner, 1979 · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Cyrtophorida (Order) > Chilodonellidae (Family)
 Alinostoma Yankovskij, 1980 accepted as Pseudochilodonopsis Foissner, 1979 · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Cyrtophorida (Order) > Chilodonellidae (Family)

Aliona
     Aliona Özdikmen, 2009 · Chromista (Kingdom) > Miozoa (Phylum) > Paragregarea (Class) > Archigregarinida (Order) > Merogregarinidae (Family)
     Aliona Gyulai, Saldaitis & Zilli, 2019 accepted as Aliona Gyulai, Saldaitis & Zilli, 2019 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Aliopsis
     Aliopsis Abdelhamid, Abdelghany & Abu Saima, 2022 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Arbacioida (Order) > Acropeltidae (Family)
 Aliopsis S. Omer & M. Qaiser, 1991 accepted as Gentianella Moench, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)

Alipes
     Alipes Conrad, 1865 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Alipes Imhoff, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Scolopendromorpha (Order) > Scolopendridae (Family)

Aliturus
 Aliturus Distant, 1908 accepted as Neoaliturus Distant, 1918 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Aliturus Fairmaire, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aliurus
 Aliurus accepted as Aliturus Fairmaire, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Aliurus Dunn & Dunn, 1940 accepted as Hemidactylus Oken, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)

Alkanna
 Alkanna Adanson, 1763 accepted as Alkanna Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Lythraceae (Family)
     Alkanna Tausch, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Allactina
 Allactina Hebard, 1929 accepted as Balta Tepper, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Ectobiidae (Family)
     Allactina Curran, 1924 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)

Allantodia
 Allantodia R. Brown, 1810 accepted as Diplazium O. Swartz, 1801 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Athyriaceae (Family)
 Allantodia Wallich ex J. Smith, 1841 accepted as Diplaziopsis Christensen, 1906 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Diplaziopsidaceae (Family)

Allardia
     Allardia Nicolas, 1898 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Allardia Decaisne in Jacquemont, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Allardiana
     Allardiana Levasseur, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Allardiana Levasseur, 1965 accepted as Allardiana Levasseur, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Allardiana Rigout, 1994 accepted as Bisallardiana Antoine, 2003 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Allata
     Allata Walker, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
     Allata Walker, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)

Allenbya
     Allenbya S.R.S. Cevallos-Ferriz & R.A. Stockey, 1989 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Nymphaeales (Order) > Nymphaeaceae (Family)
     Allenbya Archibald & Cannings, 2022 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Dysagrionidae (Family)

Allenella
 Allenella Aurivillius in Seitz, 1927 accepted as Allenella Aurivillius in Seitz, 1927 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Allenella Genise, 1992 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tiphiidae (Family)
     Allenella Iredale, 1944 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Punctidae (Family)

Allengreerus
 Allengreerus Hoser, 2009 accepted as Lampropholis Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
 Allengreerus Hoser, 2012 accepted as Lampropholis Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)

Allenia
 Allenia Phillips, 1944 accepted as Radyera Bullock, 1957 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Allenia Cory, 1891 accepted as Margarops Sclater, 1859 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Sturnidae (Family)
 Allenia Ewart, 1909 accepted as Micrantheum Desfontaines, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Picrodendraceae (Family)

Alleniella
     Alleniella S. Olsson, J. Enroth & D. Quandt in Olsson et al., 2011 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Neckeraceae (Family)
     Alleniella Musacchio & Simeoni, 1991 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Allerya
 Allerya Mörch, 1877 accepted as Williamia Monterosato, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Basommatophora incertae sedis (Order) > Siphonariidae (Family)
     Allerya Bourguignat, 1878 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Endodontidae (Family)

Allescheria
     Allescheria R. Hartig, 1899 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Rhytismatales (Order) > Rhytismatales incertae sedis (Family)
 Allescheria P.A. Saccardo & P. Sydow, 1899 accepted as Monascus Van Tieghem, 1884 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Eurotiales (Order) > Monascaceae (Family)

Allia
     Allia Walker, 1867 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Allia Strel'tzov, 1973 accepted as Aricidea Webster, 1879 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Cirratulida (Order) > Paraonidae (Family)
     Allia Schouteden, 1907 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Alliaria
     Alliaria Heister ex Fabricius, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Alliaria O. Kuntze, 1891 accepted as Dysoxylum Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Meliaceae (Family)

Alligator
     Alligator Cuvier, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Crocodylia (Order) > Alligatoridae (Family)
     Alligator Rafinesque, 1815 accepted as Alligator Cuvier, 1817 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Crocodylia (Order) > Alligatoridae (Family)

Allionia
     Allionia Michelotti, 1861 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Comatulida (Order) > Comatulida (awaiting allocation) (Family)
 Allionia Loefling, 1758 accepted as Allionia Loefling, 1758 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)
     Allionia Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)

Allioniella
 Allioniella V.F. Brotherus, 1911 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnales (Order) > Sematophyllaceae (Family)
 Allioniella Rydberg, 1902 accepted as Mirabilis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)

Alliphis
     Alliphis Halbert, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Eviphididae (Family)
     Alliphis Vitzthum in Kükenthal, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Eviphididae (Family)

Allobacciger
 Allobacciger Machida & Uchida, 2001 accepted as Monorcheides Odhner, 1905 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Monorchiidae (Family)
     Allobacciger Hafeezullah & Siddiqi, 1970 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Fellodistomidae (Family)

Allobia
 Allobia Livschitz & Mitrofanov, 1969 accepted as Bryobia Koch in Panzer, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tetranychidae (Family)
 Allobia Rafinesque, 1838 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Allocera
 Allocera Hoogstraal, 1959 accepted as Haemaphysalis Koch, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Ixodidae (Family)
     Allocera Borchmann, 1916 accepted as Cerostira Borchmann, 1942 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Allocera Sichel, 1866 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Alloceraea
 Alloceraea Schulze, 1918 accepted as Haemaphysalis Koch, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Ixodidae (Family)
 Alloceraea Benick, 1934 accepted as Plataraea Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Allocerus
 Allocerus Gemminger in Gemminger & Harold, 1872 accepted as Alocerus Mulsant, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Allocerus Audinet-Serville, 1832 accepted as Allocerus Lacordaire, 1830 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Allocerus Lacordaire, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Allochytridium
     Allochytridium D.J.S. Barr & N.L. Désaulniers, 1987 · Fungi (Kingdom) > Chytridiomycota (Phylum) > Chytridiomycetes (Class) > Chytridiales (Order) > Endochytriaceae (Family)
 Allochytridium Salkin, 1970 accepted as Allochytrium A.B. Doweld, 2013 · Fungi (Kingdom) > Chytridiomycota (Phylum) > Chytridiomycetes (Class) > Chytridiales (Order) > Endochytriaceae (Family)

Allocladus
 Allocladus Sukh-Dev & Zeba-Bano, 1979 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)
     Allocladus J.A. Townrow, 1967 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)

Allocosmia
     Allocosmia Sugi in Inoue & Kawabe, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Allocosmia Cossmann, 1897 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)

Allocota
     Allocota Motschoulsky, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Allocota Förster, 1868 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Allocota Bernhauer, 1916 accepted as Gyrophaena Mannerheim, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Allocota Meyrick, 1904 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Allocotus
 Allocotus Loew, 1872 accepted as Paracosmus Osten-Sacken, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)
     Allocotus Mayr, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Allocotus Fischer de Waldheim, 1838 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Allocotus Puton, 1874 accepted as Melanotrichus Reuter, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Allodactylus
 Allodactylus Weise, 1883 accepted as Zacladus Reitter, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Allodactylus Lataste & Rochebrune, 1876 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)

Allodapa
 Allodapa Schulz, 1906 accepted as Allodapa Schulz, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
     Allodapa Diesing, 1861 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Subuluridae (Family)
 Allodapa Brunner von Wattenwyl, 1878 accepted as Pelerinus Bolivar, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Allodape
     Allodape Lepeletier & Serville, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
 Allodape Endlicher, 1839 accepted as Allodape Endlicher, 1839 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)

Allodapus
 Allodapus Kleine, 1922 accepted as Allodapinus Hedicke, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Allodapus Fieber, 1860 accepted as Hallodapus Fieber, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Allodiplogaster
 Allodiplogaster Paramonov & Sobolev in Skrjabin, Shikhobalova, Sobolev, Paramonov & Sudarikov, 1954 accepted as Koerneria Meyl, 1960 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Diplogasterida (Order) > Diplogasteridae (Family)
     Allodiplogaster Paramonov, 1952 accepted as Allodiplogaster Paramonov, 1952 (nomen nudum)· Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Diplogasterida (Order) > Diplogasteridae (Family)

Allodiplosis
     Allodiplosis Kieffer & Jørgensen, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
     Allodiplosis Rübsaamen, 1910 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Alloea
     Alloea Haliday, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Alloea Turner, 1948 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Alloeomyia
     Alloeomyia Hardy, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
 Alloeomyia Reinert, Harbach & Kitching, 2008 accepted as Collessius Reinert, Harbach & Kitching, 2006 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)

Alloeoneis
 Alloeoneis Pantocsek, 1889 accepted as Scoliopleura Grunow, 1860 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Naviculales (Order) > Scoliotropidaceae (Family)
 Alloeoneis J. Schumann, 1867 accepted as Scoliopleura Grunow, 1860 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Naviculales (Order) > Scoliotropidaceae (Family)

Alloeoneura
     Alloeoneura Loew, 1879 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Psyllidae (Family)
 Alloeoneura Warren, 1895 accepted as Distoneura Fletcher, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Allogabus
 Allogabus Guignot, 1951 accepted as Platambus Thomson, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)
 Allogabus Guignot, 1952 accepted as Platambus Thomson, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Allogalathea
     Allogalathea Baba, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Galatheidae (Family)
 Allogalathea Miyake & Sakai, 1967 accepted as Allogalathea Baba, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Galatheidae (Family)

Allogaster
     Allogaster Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Allogaster Selys, 1878 accepted as Neallogaster Cowley, 1934 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Cordulegastridae (Family)

Allogenes
 Allogenes Andrewes, 1931 accepted as Allophanes Andrewes, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Allogenes Gude, 1911 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Alloionema
     Alloionema Hartlaub, 1907 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Trachylina (Order) > Halicreatidae (Family)
     Alloionema Schneider, 1859 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Alloionematidae (Family)

Allolagus
 Allolagus Dice, 1929 † accepted as Alilepus Dice, 1931 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Lagomorpha (Order) > Leporidae (Family)
 Allolagus Ognev, 1929 accepted as Lepus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Lagomorpha (Order) > Leporidae (Family)

Allolepis
 Allolepis Jordan & Hubbs, 1925 accepted as Bothrocara Bean, 1890 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Zoarcidae (Family)
     Allolepis Heintz, 1932 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Allolepis Soderstrom & Decker, 1965 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Allolobophora
     Allolobophora Eisen, 1873 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Lumbricidae (Family)
     Allolobophora Perel, 1976 † (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Lumbricidae (Family)
     Allolobophora Omodeo, 1956 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)

Allomicrus
     Allomicrus Gahan, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Allomicrus Franz, 1971 accepted as Scydmaenus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Allomicrus Franz, 1975 accepted as Scydmaenus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Allomorpha
 Allomorpha Jacoby, 1892 accepted as Hespera Weise, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Allomorpha Cameron, 1876 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Allomyia
 Allomyia Malloch, 1919 accepted as Allomyella Malloch, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Scathophagidae (Family)
     Allomyia Ren, 1998 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)
     Allomyia Banks, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Apataniidae (Family)
 Allomyia Felt, 1918 accepted as Oligotrophus Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
 Allomyia Fedotova, 1991 accepted as Alliomyia Gagne, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Allonapochus
 Allonapochus Franz, 1986 accepted as Euconnus Thomson, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Allonapochus Franz, 1972 accepted as Euconnus Thomson, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Allonema
     Allonema Ulrich & Bassler, 1904 † · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Ctenostomatida (Order) > Vinellidae (Family)
     Allonema H. Sydow, 1934 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Alloneura
 Alloneura Selys, 1860 accepted as Caconeura Kirby, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Protoneuridae (Family)
     Alloneura Martins-Neto & Vulcano, 1989 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)
     Alloneura Rondani, 1856 accepted as Tomosvaryella Aczél, 1939 (nomen dubium)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Pipunculidae (Family)

Allonychus
     Allonychus Pritchard & Baker, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tetranychidae (Family)
 Allonychus Zaitzev, 1905 accepted as Agabus Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Allonyx
 Allonyx Leconte, 1861 accepted as Enallonyx Wolcott, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melyridae (Family)
     Allonyx Jacquelin du Val, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)

Allopentarthrum
     Allopentarthrum Kuschel in Wibmer & O'Brien, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Allopentarthrum Voss, 1936 accepted as Allopentarthrum Kuschel in Wibmer & O'Brien, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Allopertes
     Allopertes Jacob, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Allopertes Hustache, 1938 accepted as Allopertes Jacob, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Allophallus
     Allophallus Dziedzicki, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Mycetophilidae (Family)
 Allophallus Hubbs, 1936 accepted as Carlhubbsia Whitley, 1951 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cyprinodontiformes (Order) > Poeciliidae (Family)

Allopharynx
     Allopharynx Strom, 1928 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Plagiorchiidae (Family)
 Allopharynx Steinböck, 1932 accepted as Alloeopharynx Steinböck, 1932 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Prolecithophora (Order) > Plagiostomidae (Family)

Allophryxus
     Allophryxus Koehler, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Dajidae (Family)
 Allophryxus Bruce, 1974 accepted as Hemiphryxus Bruce, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Bopyridae (Family)

Allophyla
     Allophyla Loew, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Heleomyzidae (Family)
 Allophyla Weise, 1889 accepted as Sangariola Jacobson, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Allophyla Turner, 1947 accepted as Euturneria Fletcher, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Allophylax
     Allophylax Bedel, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Allophylax Banks, 1907 accepted as Caborius Navás, 1918 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Limnephilidae (Family)

Allophyllum
     Allophyllum Schouppé, 1957 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)
     Allophyllum (Nuttall) A. Grant & V. Grant, 1955 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Polemoniaceae (Family)

Allophyllus
 Allophyllus Gleditsch, 1764 accepted as Allophylus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
     Allophyllus Fauvel, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Allophylus
     Allophylus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
     Allophylus Brunner in Brunner & Redtenbacher, 1907 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Diapheromeridae (Family)

Allophyton
     Allophyton Thomson, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Allophyton T.S. Brandegee, 1914 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Alloplectus
     Alloplectus Broun, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Alloplectus C.F.P. Martius, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Allopliosilpha
     Allopliosilpha Gersdorf, 1970 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > (Family)
     Allopliosilpha Gersdorf, 1971 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Silphidae (Family)

Allopogon
     Allopogon Schiner, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Allopogon Horn, 1880 accepted as Allopogonia Cockerell, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Artematopodidae (Family)

Allopora
     Allopora Dana in Wilkes, 1848 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Stylasteridae (Family)
 Allopora Ehrenberg, 1834 accepted as Stylaster Gray, 1831 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Stylasteridae (Family)

Alloproctus
     Alloproctus Bergroth, 1924 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Alloproctus Silvestri, 1948 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polyxenida (Order) > Lophoproctidae (Family)

Alloptellus
     Alloptellus Dubinin, 1953 accepted as Alloptellus Dubinin, 1955 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Alloptidae (Family)
     Alloptellus Dubinin, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Alloptidae (Family)

Allopterus
     Allopterus Zhang, 1991 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Allopteridae (Family)
     Allopterus Broun, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melandryidae (Family)

Alloschema
     Alloschema Beier, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Alloschema Jordan, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Allosphaerium
     Allosphaerium Kidder & Summers, 1935 · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Cyrtophorida (Order) > Hartmannulidae (Family)
 Allosphaerium Link, 1826 accepted as Rhizoctonia A.P. de Candolle, 1816 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Cantharellales (Order) > Ceratobasidiaceae (Family)

Allostoma
     Allostoma Westblad, 1955 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Prolecithophora (Order) > Cylindrostomidae (Family)
     Allostoma van Beneden, 1861 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Prolecithophora (Order) > Cylindrostomidae (Family)

Allotheca
     Allotheca Ehrenberg, 1843 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Allotheca Cameron, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Allotria
     Allotria Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Allotria Westwood, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Allotria Rafinesque, 1837 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Commelinales (Order) > Commelinaceae (Family)

Allotrius
 Allotrius Laporte, 1840 accepted as Senodonia Laporte, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
     Allotrius Temminck in Temminck & Laugier, 1835 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Timaliidae (Family)

Allotropa
     Allotropa J. Torrey & A. Gray, 1858 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
     Allotropa Förster, 1856 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Allotrypes
     Allotrypes Bezzi, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
     Allotrypes François, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Geotrupidae (Family)

Alloxylon
 Alloxylon Zalessky, 1927 † accepted as Alloxylon Zalessky, 1927 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)
     Alloxylon P.H. Weston & M.D. Crisp, 1991 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)

Allozercon
     Allozercon Vitzthum, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Heterozerconidae (Family)
     Allozercon Blaszak, 1984 accepted as Blaszakzercon Kemal & Koçak, 2009 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Zerconidae (Family)

Allozetes
 Allozetes Feider, Vasiliu & Calugar, 1971 accepted as Minunthozetes Hull, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Mycobatidae (Family)
 Allozetes Higgins, 1965 accepted as Kalyptrazetes Balogh, 1972 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Microzetidae (Family)
     Allozetes Berlese, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Mycobatidae (Family)

Allportia
     Allportia Tenison-Woods, 1877 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Allportia Schouteden, 1906 accepted as Poecilotoma Dallas, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Alluaudella
 Alluaudella Shelford, 1910 accepted as Alluaudellina Chopard, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Nocticolidae (Family)
 Alluaudella Gravier, 1905 accepted as Odontosyllis Claparède, 1863 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Syllidae (Family)

Alluaudia
     Alluaudia (Drake del Castillo) Drake del Castillo, 1903 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Didiereaceae (Family)
     Alluaudia Bolivar, 1893 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Alluaudia Lameere, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Alluaudiella
     Alluaudiella Bolivar, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Alluaudiella Poppius, 1914 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Allucita
     Allucita Hill, 1773 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Thysanoptera (awaiting allocation) (Family)
 Allucita Billberg, 1820 accepted as Allucita Billberg, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Allurus
 Allurus Eisen, 1873 accepted as Eiseniella Michaelsen, 1900 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Lumbricidae (Family)
 Allurus Jordan & Evermann, 1896 accepted as Careproctus Krøyer, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Liparidae (Family)
     Allurus Förster, 1862 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Almana
 Almana Rafinesque, 1838 accepted as Sinningia C.G.D. Nees, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
     Almana Stål, 1861 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Almeria
     Almeria Agenjo, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Almeria Paetel, 1875 accepted as Amerianna Strand, 1928 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)

Alnicola
 Alnicola Kühner, 1926 accepted as Naucoria (E.M. Fries) P. Kummer, 1871 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Strophariaceae (Family)
     Alnicola (Kühner) R. Heim, 1931 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Strophariaceae (Family)

Alnites
 Alnites W. Hisinger, 1837 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliopsida (awaiting allocation) (Order) > (Family)
     Alnites H.R. Göppert, 1837 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fagales (Order) > Betulaceae (Family)
 Alnites H. Deane, 1902 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fagales (Order) > Betulaceae (Family)

Alnoxylon
 Alnoxylon E. Hofmann, 1944 † accepted as Alnoxylon E. Hofmann, 1944 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fagales (Order) > Betulaceae (Family)
     Alnoxylon Felix, 1884 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fagales (Order) > Betulaceae (Family)

Alobus
 Alobus Peters, 1867 accepted as Pipistrellus Kaup, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Vespertilionidae (Family)
 Alobus Leconte, 1856 accepted as Diplotaxis Kirby, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Alocasia
     Alocasia (H.W. Schott) G. Don in R. Sweet, 1839 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)
 Alocasia Necker ex Rafinesque, 1837 accepted as Arisaema C.F.P. von Martius, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)

Alocodon
     Alocodon Thulborn, 1973 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Ornithischia (Order) > Fabrosauridae (Family)
 Alocodon Rose, Bown & Simons, 1977 † accepted as Alocodontulum Rose, Bown & Simons, 1978 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cimolesta (Order) > Epoicotheriidae (Family)

Alocorhinus
     Alocorhinus Jekel, 1854 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Alocorhinus Sahlberg, 1823 accepted as Alocorhinus Sahlberg, 1823 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Aloea
 Aloea Sacco, 1886 accepted as Aloea Sacco, 1886 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Aloea Linnavuori, 1975 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Aloides
 Aloides Agassiz, 1846 accepted as Aloeides Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
 Aloides Adams, 1856 accepted as Corbula Bruguière, 1797 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Corbulidae (Family)
     Aloides Fabricius, 1759 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Hydrocharitaceae (Family)

Aloinella
     Aloinella J. Cardot, 1909 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)
 Aloinella (A. Berger) A. Lemée, 1939 accepted as Aloe Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asphodelaceae (Family)

Aloma
 Aloma Linnavuori, 1993 accepted as Raunoloma Lis, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cydnidae (Family)
 Aloma Andrewes, 1931 accepted as Nesites Andrewes, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Aloma Hörnes & Auinger, 1891 † accepted as Atoma Bellardi, 1875 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)

Alona
     Alona Baird, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Diplostraca (Order) > Chydoridae (Family)
 Alona J. Lindley, 1844 accepted as Nolana Linnaeus f., 1762 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)

Alope
 Alope Walker, 1855 accepted as Pericallia Hübner, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Alope White, 1847, nom. nud. accepted as Alope White, 1847 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Hippolytidae (Family)
     Alope White, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Hippolytidae (Family)

Alopecias
     Alopecias C. Steven, 1856 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Alopecias Müller & Henle, 1837 accepted as Alopias Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Lamniformes (Order) > Alopiidae (Family)

Alopecocyon
 Alopecocyon Viret, 1951 † accepted as Alopecocyon Camp & Vanderhoof, 1940 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Ailuridae (Family)
     Alopecocyon Camp & Vanderhoof, 1940 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Ailuridae (Family)

Alopecodon
     Alopecodon Broom, 1908 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Therapsida (Order) > Scylacosauridae (Family)
     Alopecodon Viret, 1933 † accepted as Alopecocyon Camp & Vanderhoof, 1940 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Ailuridae (Family)

Alopecurus
     Alopecurus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Alopecurus Steedman, 1833 accepted as Cynictis Ogilby, 1833 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Herpestidae (Family)

Alophia
     Alophia Rasmussen et al., 2019 † accepted as Alophe Rasmussen et al., 2019 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Cercopithecoidea incertae sedis (Family)
     Alophia Herbert, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
     Alophia Ragonot in Romanoff, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Alophia Fairmaire, 1896 accepted as Diadelia Waterhouse, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Alophus
     Alophus Malherbe, 1860 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Alophus Schönherr, 1826 accepted as Graptus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Alophus Dugès, 1885 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Alophus Ashmead, 1904 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Alophyllus
 Alophyllus Heller, 1916 accepted as Allophyllus Fauvel, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Alophyllus accepted as Allophylus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)

Alosimus
     Alosimus (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Alosimus Mulsant, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Meloidae (Family)

Aloysia
     Aloysia Issel, 1907 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Aloysia A. Paláu y Verdéra, 1784 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)

Alpertia
     Alpertia Orlowski & Radwanski, 1986 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actiniaria (awaiting allocation) (Family)
     Alpertia Loomis, 1972 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Polydesmidae (Family)

Alpha
     Alpha Dalla Torre, 1904 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)
 Alpha Brunner, 1893 accepted as Cordillacris Rehn, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Alpha de Saussure, 1854 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Alpharaia
 Alpharaia Leigh-Sharpe, 1924 accepted as Raja Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rajidae (Family)
     Alpharaia Jordan, 1925 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Alpheus
     Alpheus Fabricius, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Alpheidae (Family)
 Alpheus Weber, 1795 accepted as Alpheus Weber, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Alpheidae (Family)

Alphitobius
     Alphitobius Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Alphitobius sensu Carter, 1920 accepted as Ulomoides Blackburn, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Alphitobius Lea, 1915 accepted as Alphitopis Pascoe, 1870 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Alphitopola
 Alphitopola Thomson, 1857 accepted as Prosopocera Blanchard, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Alphitopola Dejean, 1835 accepted as Alphitopola Thomson, 1857 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Alphus
     Alphus Dejean, 1835 accepted as Alphus White, 1855 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Alphus Wallengren, 1869 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Alphus White, 1855 accepted as Alphus White, 1855 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Alphus Thomson, 1860 accepted as Alphus White, 1855 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Alpinia
     Alpinia Brundin, 1948 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Alpinia Roxburgh, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)
 Alpinia Linnaeus, 1753 accepted as Alpinia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)

Alpismaris
 Alpismaris Swainson, 1838 accepted as Engraulis Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Clupeiformes (Order) > Engraulidae (Family)
 Alpismaris Risso, 1827 accepted as Synodus Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Aulopiformes (Order) > Synodontidae (Family)

Alsatia
 Alsatia Tattersall & Schwartz, 1983 † accepted as Europolemur Weigelt, 1933 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Notharctidae (Family)
     Alsatia Andreae, 1884 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Alseis
     Alseis Kirkaldy, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Alseis H.W. Schott in K.P.J. Sprengel, 1827 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Alsine
 Alsine J. Gaertner accepted as Minuartia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)
 Alsine Linnaeus, 1753 accepted as Stellaria Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Alsinella
     Alsinella J. Hill, 1756 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)
 Alsinella S.F. Gray, 1821 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)
 Alsinella Moench, 1794 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Alsobia
     Alsobia Bourguignat, 1858 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Alsobia Hanstein, 1854 accepted as Episcia C.F.P. Martius, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Alsomitra
     Alsomitra (Blume) Spach, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Cucurbitaceae (Family)
 Alsomitra Bentham & J.D. Hooker, 1867 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Cucurbitaceae (Family)

Alsophila
     Alsophila Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Alsophila R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Cyatheales (Order) > Cyatheaceae (Family)

Alsophilites
     Alsophilites M. Hirmer, 1927 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Cyatheales (Order) > Cyatheaceae (Family)
     Alsophilites N.A. Bolchovitina, 1959 † (uncertain)· Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Alstonia
     Alstonia R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Alstonia Mutis ex Linnaeus f., 1782 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Symplocaceae (Family)
 Alstonia Scopoli, 1777 accepted as Alstonia Scopoli, 1777 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Altajella
 Altajella Gulička, 1972 accepted as Kirkayakus Özdikmen, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Altajellidae (Family)
     Altajella Kul'kov, 1962 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Xenomartiniidae (Family)

Altellopsis
     Altellopsis Simon, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Amaurobiidae (Family)
 Altellopsis Mello-Leitão, 1925 accepted as Ciniflella Mello-Leitão, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Zoropsidae (Family)

Alterbia
     Alterbia J.K. Lentin & G.L. Williams, 1976 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Peridiniaceae (Family)
 Alterbia J.K. Lentin & G.L. Williams, 1977 † accepted as Alterbidinium J.K. Lentin & G.L. Williams, 1985 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Peridiniaceae (Family)

Alteuthellopsis
     Alteuthellopsis Lang, 1948 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Peltidiidae (Family)
     Alteuthellopsis Lang, 1944 accepted as Alteuthellopsis Lang, 1948 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Peltidiidae (Family)

Altha
 Altha Neckaja, 1958 † accepted as Neckajatia Schallreuter, 1974 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Palaeocopida (awaiting allocation) (Family)
     Altha Walker, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Limacodidae (Family)
     Altha Neckaja, 1955 † accepted as Altha Neckaja, 1955 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Althepus
     Althepus Rafinesque, 1815 accepted as Althepus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Althepus Thorell, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Psilodercidae (Family)

Althoffia
 Althoffia K. Schumann, 1887 accepted as Trichospermum Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Althoffia Lohmann, 1892 · Animalia (Kingdom) > Chordata (Phylum) > Appendicularia (Class) > Copelata (Order) > Oikopleuridae (Family)

Altica
 Altica Laicharting, 1781 accepted as Altica Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Altica Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Alticeps
 Alticeps Gistl, 1848 accepted as Cephalopterus Geoffroy, 1809 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
     Alticeps Williams, 1977 accepted as Metalticeps Dmitriev, 2020 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Achilidae (Family)

Alticus
     Alticus Lacepède, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Blenniidae (Family)
 Alticus Valenciennes, 1836 (ex Commerson) in Cuvier & Valenciennes accepted as Alticus Lacepède, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Blenniidae (Family)

Altigena
 Altigena Lin, 1933 accepted as Bangana Hamilton, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Altigena Burton, 1934 accepted as Bangana Hamilton, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)

Alucita
     Alucita Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Alucitidae (Family)
 Alucita Denis & Schiffermueller, 1775 accepted as Alucita Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Alucitidae (Family)

Aluco
     Aluco Martens, 1880 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Cerithiidae (Family)
 Aluco Link, 1807 accepted as Pseudovertagus Vignal, 1904 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Cerithiidae (Family)
     Aluco Fleming, 1822 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Alueva
     Alueva Sdzuy, 1961 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Alueva Lotze, 1958 † accepted as Alueva Lotze, 1958 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Alura
     Alura Möschler, 1883 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Alura Chamberlin, 1926 accepted as Verrucaditha Chamberlin, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Pseudoscorpionida (Order) > Tridenchthoniidae (Family)

Alus
     Alus Bubani, 1897 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)
 Alus Gray, 1825 accepted as Alces Gray, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)

Aluta
 Aluta Jekelius, 1932 † accepted as Brasovia Neubauer, Kroh, Harzhauser, Georgopoulou & Mandic, 2015 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)
     Aluta Matthew, 1896 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Archaeocopida (Order) > Beyrichonidae (Family)
     Aluta B.L. Rye & M.E. Trudgen, 2000 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Alutera
 Alutera Schinz in Cuvier, 1822 accepted as Aluterus Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Monacanthidae (Family)
 Alutera Oken (ex Cuvier), 1817 accepted as Aluterus Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Monacanthidae (Family)

Aluvigerina
 Aluvigerina Thalmann, 1952 accepted as Uvigerina d'Orbigny, 1826 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Uvigerinidae (Family)
 Aluvigerina Hofker, 1951 accepted as Uvigerina d'Orbigny, 1826 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Uvigerinidae (Family)

Alvania
     Alvania Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)
     Alvania Beddard, 1893 accepted as Alvania Beddard, 1893 (junior homonym)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Eudrilidae (Family)

Alvaradoa
     Alvaradoa Liebmann, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Picramniales (Order) > Picramniaceae (Family)
     Alvaradoa Ibanez & Alonso in Groh Ponte-Li, Alon & Ibanez, 1994 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Hygromiidae (Family)

Alveolaria
     Alveolaria Busk, 1859 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Tretocycloeciidae (Family)
 Alveolaria Johnston, 1865 accepted as Sabellaria Lamarck, 1818 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Sabellariidae (Family)
     Alveolaria Lagerheim, 1892 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniosiraceae (Family)

Alveolina
 Alveolina Van Tieghem, 1895 accepted as Psittacanthus C.F.P. Martius, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Loranthaceae (Family)
     Alveolina d'Orbigny, 1826 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Alveolinidae (Family)

Alveolites
 Alveolites Defrance, 1816 † accepted as Alveolina d'Orbigny, 1826 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Alveolinidae (Family)
     Alveolites Lamarck, 1801 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Tabulata (Order) > Alveolitidae (Family)

Alveosphaera
     Alveosphaera V.V. Kirjanov, 1978 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)
     Alveosphaera R.W. Jordan & J.R. Young, 1990 · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Syracosphaerales (Order) > Calciosoleniaceae (Family)

Alvesia
     Alvesia F.M.J. Welwitsch, 1869 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Alvesia F.M.J. Welwitsch, 1859 accepted as Alvesia F.M.J. Welwitsch, 1859 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Alveus
     Alveus I. Kaczmarska & G.A. Fryxell, 1996 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Bacillariales (Order) > Bacillariaceae (Family)
     Alveus Hamilton, 1942 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda incertae sedis (Family)

Alvinia
 Alvinia Monterosato, 1884 accepted as Alvania Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)
     Alvinia Sytchevskaya, 1999 † accepted as Alvininia Prokofiev, 2022 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perleidiformes (Order) > Perleididae (Family)

Alyattes
 Alyattes Thomson, 1864 accepted as Pterolophia Newman, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Alyattes Stål, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Alyattes Kinberg, 1866 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)

Alycus
     Alycus Rafinesque, 1815 accepted as Lycus Fabricius, 1787 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lycidae (Family)
     Alycus Koch, 1842 accepted as Alycus Koch, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Bimichaeliidae (Family)

Alyscum
     Alyscum Diesing, 1848 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Alyscum Dujardin, 1841 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Alysia
     Alysia Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
 Alysia Guenée, 1868 accepted as Alysina Cockerell, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Alysia Lowe, 1839 accepted as Gonichthys Gistel, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Myctophiformes (Order) > Myctophidae (Family)
 Alysia Cavalcante & Silva in Cavalcante et al., 1972 accepted as Vouauxiella F. Petrak & H. Sydow, 1927 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Alysidium
     Alysidium Busk, 1852 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Alysidiidae (Family)
     Alysidium Kunze, 1817 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Cantharellales (Order) > Botryobasidiaceae (Family)

Alysidota
 Alysidota Agassiz, 1846 accepted as Alysidota Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Alysidota Busk, 1856 accepted as Phylactella Hincks, 1879 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Phylactellidae (Family)

Alysiella
     Alysiella Langeron, 1923 (Approved Lists, 1980) · Bacteria (Kingdom) > Proteobacteria (Phylum) > Betaproteobacteria (Class) > Neisseriales (Order) > Neisseriaceae (Family)
     Alysiella Ferrière in Beier, 1930 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Alyssoderus
 Alyssoderus Kerremans, 1893 accepted as Alissoderus Deyrolle, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Alyssoderus Deyrolle, 1864 accepted as Alissoderus Deyrolle, 1864 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Amaea
 Amaea Malmgren, 1866 accepted as Amaeana Hartman, 1959 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)
     Amaea H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Epitoniidae (Family)

Amalactus
     Amalactus Schönherr, 1833 accepted as Amalactus Schoenherr, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Amalactus Dejean, 1835 accepted as Amalactus Schoenherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Amalactus Schoenherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amalapoderus
     Amalapoderus Voss, 1937 accepted as Amalapoderus Legalov, 2007 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Attelabidae (Family)
 Amalapoderus Legalov, 2007 accepted as Homapoderus Legalov, 2003 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Attelabidae (Family)

Amalgamoporus
     Amalgamoporus Farmer, 1975 † (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
     Amalgamoporus Farmer, 1968 † accepted as Amalgamoporus Farmer, 1968 † (nomen nudum)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)

Amalia
 Amalia Moquin-Tandon, 1855 accepted as Milax Gray, 1855 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Milacidae (Family)
 Amalia Endlicher, 1837 accepted as Amalia Endlicher, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)
 Amalia G.B. De Toni, 1934 accepted as Romeria M. Koczwara in Geitler, 1932 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Synechococcales (Order) > Romeriaceae (Family)
 Amalia H.G.L. Reichenbach, 1841 accepted as Laelia J. Lindley, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Amallocerus
     Amallocerus Guérin-Méneville, 1844 accepted as Pteracantha Newman, 1838 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Amallocerus Dejean, 1835 accepted as Amallocerus Guérin-Méneville, 1844 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Amalorrhynchus
     Amalorrhynchus Reitter, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Amalorrhynchus Colonnelli, 1979 accepted as Rhinoncus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amalthea
     Amalthea Gumppenberg, 1887 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Amalthea R. D'Archino & W.A. Nelson in D'Archino, Nelson & Zuccarello, 2014 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Halymeniales (Order) > Halymeniaceae (Family)
 Amalthea Oken, 1817 † accepted as Amaltheus de Montfort, 1808 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hipponicidae (Family)
     Amalthea Rafinesque, 1815 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
 Amalthea Schumacher, 1817 accepted as Sabia Gray, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hipponicidae (Family)

Amalthus
 Amalthus Sowerby, 1839 † accepted as Amaltheus de Montfort, 1808 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hipponicidae (Family)
     Amalthus Pascoe, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amalus
     Amalus Mulsant & Rey, 1870 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Amalus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amana
     Amana Walker, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Epicopeiidae (Family)
 Amana Honda, 1935 accepted as Tulipa Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
 Amana Raffray, 1890 accepted as Anama Newton & Chandler, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Amanda
     Amanda Macnae, 1954 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Facelinidae (Family)
     Amanda J.G. Douglas, 1973 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)

Amandinea
 Amandinea M. Choisy, 1950 accepted as Amandinea Choisy ex C. Scheidegger & M. Mayrhofer in C. Scheidegger, 1993 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Caliciaceae (Family)
     Amandinea Choisy ex C. Scheidegger & M. Mayrhofer in C. Scheidegger, 1993 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Caliciaceae (Family)

Amandopaussus
 Amandopaussus Luna de Carvalho, 1989 accepted as Paussus Linnaeus, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Amandopaussus Kolbe, 1938 accepted as Paussus Linnaeus, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Amanita
     Amanita Adanson, 1763 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Agaricales incertae sedis (Family)
 Amanita Dillenius ex Boehmer, 1760 accepted as Agaricus Linnaeus, 1753 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Agaricaceae (Family)
     Amanita Persoon, 1797 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Amanitaceae (Family)

Amanitella
 Amanitella Earle, 1909 accepted as Amanita Persoon, 1797 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Amanitaceae (Family)
 Amanitella Maire, 1913 accepted as Limacella Earle, 1909 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Amanitaceae (Family)

Amansia
     Amansia Oudemans, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Canestriniidae (Family)
     Amansia J.V.F. Lamouroux, 1809 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)

Amansites
     Amansites (A.T. Brongniart) A.T. Brongniart in A.C.V.D. d'Orbigny, 1849 † (uncertain)· Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Amansites Brongniart, 1828 † · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Amara
     Amara Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Amara Stephens, 1827 accepted as Amara Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Amaracus
 Amaracus J. Hill, 1756 accepted as Amaracus J. Hill, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Amaracus J.G. Gleditsch, 1764 accepted as Origanum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Amaralia
     Amaralia Fowler, 1954 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Aspredinidae (Family)
 Amaralia Welwitsch ex Bentham & J.D. Hooker, 1873 accepted as Sherbournia G. Don in Loudon, 1855 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Amaralia Kegel, 1967 † accepted as Ridiculella Koerber & Costa da Silva, 2014 † (junior homonym)· Questionable / non-biota (fossil) (Kingdom) > Pseudofossils (Phylum) > (Class) > (Order) > (Family)

Amarantha
     Amarantha Motschoulsky, 1860 accepted as Metaclisa Jacquelin Du Val, 1861 (nomen oblitum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Amarantha Faust, 1875 accepted as Amarantha Motschoulsky, 1860 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Amaranthus
     Amaranthus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
     Amaranthus Müller in Knorr, 1766 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Amaranthus Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Amaroecium
 Amaroecium Bronn, 1862 accepted as Amaroucium Milne Edwards, 1841 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Aplousobranchia (Order) > Polyclinidae (Family)
 Amaroecium Milne Edwards, 1841 accepted as Aplidium Savigny, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Aplousobranchia (Order) > Polyclinidae (Family)

Amaryllis
     Amaryllis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)
     Amaryllis Haswell, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Amaryllididae (Family)

Amasia
 Amasia Meigen, 1800 accepted as Amasia Meigen, 1800 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Amasia Chapuis in Lacordaire, 1874 accepted as Colaspoides Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Amasia Dejean, 1836 accepted as Amasia Chapuis in Lacordaire, 1874 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Amasis
 Amasis Chapuis in Lacordaire, 1874 accepted as Hylax Lefèvre, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Amasis Nordenskiöld, 1905 accepted as Sigthoria Koenike, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Anisitsiellidae (Family)
     Amasis Leach, 1817 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Amasis Sörensen, 1910 accepted as Hypoxestus Loman, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Assamiidae (Family)

Amastris
     Amastris Stål, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)
     Amastris Meyrick, 1883 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Amastus
     Amastus Walker, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Amastus Motschoulsky, 1865 accepted as Rhytisternus Chaudoir, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Amathes
     Amathes Hübner, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Amathes Gistl, 1848 accepted as Nyctemera Hübner, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Amathia
     Amathia Lamouroux, 1812 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Ctenostomatida (Order) > Vesiculariidae (Family)
     Amathia Walker, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
 Amathia Rathke, 1837 accepted as Amathilla Bate & Westwood, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Gammarellidae (Family)
 Amathia Roux, 1828 accepted as Anamathia Smith, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Majidae (Family)
     Amathia Simon, 1873 accepted as Amathia Simon, 1873 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Eresidae (Family)
     Amathia Duponchel in Godart, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Amathia Chaudhri, Akbar & Rasool, 1979 accepted as Neoseiulus Hughes, 1948 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Phytoseiidae (Family)

Amathitis
 Amathitis Zimmermann, 1832 accepted as Amara Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Amathitis Ganglbauer, 1892 accepted as Amara Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Amathus
     Amathus Stephens, 1836 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)
     Amathus Stephens, 1833 accepted as Amathus Stephens, 1833 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)

Amathusia
     Amathusia Mulsant & Verreaux, 1866 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Amathusia Fabricius, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Amathusia Hartmeyer, 1901 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Urochordata (awaiting allocation) (Class) > Urochordata (awaiting allocation) (Order) > Urochordata (awaiting allocation) (Family)
     Amathusia Rafinesque, 1815 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mecoptera (Order) > Mecoptera (awaiting allocation) (Family)
     Amathusia Philippi, 1887 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Amatodes
     Amatodes Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Amatodes Solier, 1843 accepted as Amatodes Dejean, 1834 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Amatula
 Amatula Medikus, 1787 accepted as Solanum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)
     Amatula Wiltshire, 1983 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Amaura
 Amaura Brunner von Wattenwyl, 1878 accepted as Ligocatinus Rehn, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Amaura Geyer in Hübner, 1837 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Amaura Møller, 1842 accepted as Aartsenia Warén, 1991 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)

Amauresthes
 Amauresthes accepted as Amauraesthes Chevrolat, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Amauresthes Reichenbach, 1863 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Amaurina
     Amaurina Aurivillius, 1910 accepted as Amauris Hübner, 1816 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Amaurina Kolbe, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Amaurobius
     Amaurobius Koch, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Amaurobiidae (Family)
 Amaurobius Koch, 1836 accepted as Coelotes Blackwall, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Agelenidae (Family)

Amauroderma
     Amauroderma (Patouillard) Torrend, 1920 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Ganodermataceae (Family)
     Amauroderma Murrill, 1905 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Ganodermataceae (Family)

Amaurops
     Amaurops Fairmaire, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Amaurops Fairmaire, 1852 accepted as Amaurops Fairmaire, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Amauropsis
 Amauropsis Sharpe, 1894 accepted as Amauropsis Sharpe, 1894 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Amauropsis Mörch in Rink, 1857 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Naticidae (Family)

Amaurus
 Amaurus Laporte de Castelnau, 1840 accepted as Lanelater Arnett, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Amaurus Burmeister, 1834 accepted as Megymenum Guérin, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Dinidoridae (Family)

Amazonella
     Amazonella Lundblad, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)
     Amazonella Fouquet, Recoder, Teixeira, Cassimiro, Amaro, Camacho, Damasceno, Carnaval, Moritz & Rodrigues, 2012 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Bufonidae (Family)
     Amazonella Myers, 1934 accepted as Amazonella Myers, 1934 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Amazoniella
 Amazoniella Retana-Salazar, 2009 accepted as Anactinothrips Bagnall, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)
 Amazoniella Batista & H. Maia, 1960 accepted as Amazonia Theissen, 1913 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Meliolales (Order) > Meliolaceae (Family)

Amazula
     Amazula Kraatz, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Amazula Keyserling, 1886 accepted as Anapis Simon, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Anapidae (Family)

Ambates
 Ambates Schönherr, 1833 accepted as Embates Chevrolat, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Ambates Schoenherr, 1835 accepted as Embates Chevrolat, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Ambates Chevrolat, 1835 accepted as Embates Chevrolat, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Ambilobea
     Ambilobea M. Thulin, B.-A. Beier & S.G. Razafimandimbison, 2008 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Burseraceae (Family)
     Ambilobea Villiers, 1971 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)

Amblema
     Amblema Rafinesque, 1820 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
 Amblema Rafinesque, 1819 accepted as · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)

Amblesthis
 Amblesthis Thomson, 1860 accepted as Deroplia Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Amblesthis Dejean, 1835 accepted as Amblesthis Thomson, 1860 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Amblis
 Amblis Gistl, 1834 accepted as Chrysobothris Eschscholtz, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Amblis Gistel, 1848 accepted as Gonioctena Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Amblodon
 Amblodon Rafinesque, 1819 accepted as Ictiobus Rafinesque, 1820 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Catostomidae (Family)
     Amblodon Rafinesque, 1818 accepted as Ictiobus Rafinesque, 1820 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Catostomidae (Family)

Amblonyx
 Amblonyx Rafinesque, 1832 accepted as Aonyx Lesson, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)
     Amblonyx Hitchcock, 1858 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Amblyanthera
 Amblyanthera J. Müller Arg. in C.F.P. Martius, 1860 accepted as Mandevilla J. Lindley, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Amblyanthera Blume, 1849 accepted as Osbeckia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Amblyanthus
 Amblyanthus (Schlechter) F.G. Brieger in F.G. Brieger et al., 1981 accepted as Dendrobium O. Swartz, 1799 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Amblyanthus Alph. de Candolle, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)

Amblybelus
     Amblybelus Naef, 1922 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Amblybelus Montrouzier, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Amblybolus
     Amblybolus Keeton, 1964 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)
     Amblybolus Cook, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)

Amblycara
     Amblycara Fairmaire, 1893 accepted as Amblycarenum Gebien, 1910 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Amblycara Bergroth, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Amblycentrus
     Amblycentrus Fowler, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Amblycentrus Goren, 1979 accepted as Cryptocentroides Popta, 1922 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gobiidae (Family)

Amblycephalus
 Amblycephalus Boie, 1827 accepted as Amblycephalus Boie, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
     Amblycephalus Kirschbaum, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Amblycephalus Curtis, 1831 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Amblycephalus Zeder, 1803 accepted as Triaenophorus Rudolphi, 1793 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Bothriocephalidea (Order) > Triaenophoridae (Family)

Amblycerus
     Amblycerus Thunberg, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Amblycerus Raffray, 1895 accepted as Cerylambus Newton & Chandler, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Amblycerus accepted as Amblycercus Cabanis in Cabanis & Heine, 1851 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)

Amblydromus
 Amblydromus Muma, 1961 accepted as Metaseiulus Muma, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Phytoseiidae (Family)
 Amblydromus Wainstein, 1962 accepted as Typhlodromalus Muma, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Phytoseiidae (Family)

Amblygnathus
 Amblygnathus Solier in Gay, 1851 accepted as Mulsanteus Des Gozis, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
     Amblygnathus Dejean, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Amblygonia
     Amblygonia Herrich-Schäffer, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Amblygonia Felder & Felder, 1865 accepted as Parcella Stichel, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)

Amblynotus
     Amblynotus Hartig, 1843 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Amblynotus (A. de Candolle) Johnston, 1924 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Amblyodon
 Amblyodon Agassiz, 1846 accepted as Ictiobus Rafinesque, 1820 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Catostomidae (Family)
     Amblyodon Palisot de Beauvois, 1804 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryales (Order) > Meesiaceae (Family)
     Amblyodon Dawson, 1882 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
 Amblyodon Agassiz, 1846 [2] accepted as Paguma Gray, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Viverridae (Family)

Amblyopinus
     Amblyopinus Solsky, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Amblyopinus Fauvel, 1875 accepted as Amblyopinus Solsky, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Amblyopsis
     Amblyopsis DeKay, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Percopsiformes (Order) > Amblyopsidae (Family)
 Amblyopsis G.O. Sars, 1869 accepted as Amblyops G.O. Sars, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Mysida (Order) > Mysidae (Family)

Amblyopus
     Amblyopus Gilmore, 1927 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Amblyopus de Saussure, 1878 accepted as Amblyrhethus Kirby, 1906 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Oecanthidae (Family)
 Amblyopus Valenciennes in Cuvier & Valenciennes, 1837 accepted as Taenioides Lacepède, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gobiidae (Family)
     Amblyopus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
 Amblyopus Lacordaire, 1842 accepted as Amblyopus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)

Amblyosillis
 Amblyosillis Eisig, 1881 accepted as Amblyosyllis Grube, 1857 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Syllidae (Family)
 Amblyosillis Grube, 1857 accepted as Amblyosyllis Grube, 1857 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Syllidae (Family)

Amblyotis
 Amblyotis Kolenati, 1858 accepted as Eptesicus Rafinesque, 1820 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Vespertilionidae (Family)
 Amblyotis Agassiz, 1846 accepted as Vombatus Geoffroy, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Diprotodontia (Order) > Vombatidae (Family)

Amblypterus
     Amblypterus Gould, 1838 accepted as Eleothreptus Gray, 1840 (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Caprimulgiformes (Order) > Caprimulgidae (Family)
     Amblypterus Agassiz, 1833 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Palaeonisciformes (Order) > Amblypteridae (Family)

Amblypteryx
     Amblypteryx Stephens, 1836 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)
     Amblypteryx Stephens, 1829 accepted as Amblypteryx Stephens, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)

Amblyrhinus
     Amblyrhinus Schönherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Amblyrhinus Schönherr, 1823 accepted as Amblyrhinus Schönherr, 1826 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amblyrhynchus
     Amblyrhynchus Bell, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Iguanidae (Family)
 Amblyrhynchus Nuttall, 1834 accepted as Phalaropus Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)
 Amblyrhynchus Gray, 1840 accepted as Amblyramphus Leach, 1814 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)

Amblyseialus
 Amblyseialus Karg, 1983 accepted as Amblyseius Berlese, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Phytoseiidae (Family)
     Amblyseialus Muma, 1961 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Phytoseiidae (Family)

Amblysemius
     Amblysemius Agassiz, 1844 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Amiiformes (Order) > Caturidae (Family)
     Amblysemius Agassiz, 1844, nom. nud. † accepted as Amblysemius Agassiz, 1844 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Amiiformes (Order) > Caturidae (Family)

Amblysomus
 Amblysomus Faust, 1904 accepted as Whiteheadia Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Amblysomus Pomel, 1848 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Afrosoricida (Order) > Chrysochloridae (Family)

Amblysterna
     Amblysterna Saunders, 1871 accepted as Amblysterna Saunders, 1871 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Amblysterna Thomson, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Amblytropis
 Amblytropis Kitagawa, 1936 accepted as Gueldenstaedtia F.E.L. Fischer, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Amblytropis (Mitten) Brotherus in Engler & Prantl, 1907 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hookeriales (Order) > Daltoniaceae (Family)

Amblyura
     Amblyura Hemprich & Ehrenberg, 1828 accepted as Amblyura Hemprich & Ehrenberg, 1828 (taxon inquirendum)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda incertae sedis (Class) > Nemata incertae sedis (Order) > Nematoda incertae sedis (Family)
     Amblyura Lederer, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Amblyzancla
 Amblyzancla Turner, 1939 accepted as Turneriella Seven & Özdikmen, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Yponomeutidae (Family)
     Amblyzancla Turner, 1936 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Ambo
 Ambo Chamberlin, 1918 accepted as Timarete Kinberg, 1866 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Cirratulida (Order) > Cirratulidae (Family)
     Ambo A. Witkowski, M. Ashworth, H. Lange-Bertalot & G. Klein in Witkowski et al., 2020 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > (Order) > Bacillariophyceae incertae sedis (Family)

Ambraria
 Ambraria Cruse, 1825 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Ambraria Heister ex Fabricius, 1763 accepted as Anthospermum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Ambrina
 Ambrina Spach, 1836 accepted as Chenopodium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
 Ambrina Moquin-Tandon, 1840 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Ambrosiella
     Ambrosiella Odhner, 1963 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Ambrosiella Brader, 1964 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Microascales (Order) > Ceratocystidaceae (Family)

Ambulyx
     Ambulyx Westwood, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)
     Ambulyx Walker, 1856 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Amechania
     Amechania Hewitson, 1861 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Amechania A.P. de Candolle ex Dunal in A.P. de Candolle, 1839 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)

Amediella
     Amediella Jaschhof in Jaschhof & Jaschhof, 2003 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
     Amediella Papp, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)

Ameghinoa
     Ameghinoa Spegazzini, 1897 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Ameghinoa Viana & Rossi, 1957 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Ameiropsyllus
     Ameiropsyllus Bodin, 1979 accepted as Ameiropsyllus Huys, 2009 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Ameiridae (Family)
     Ameiropsyllus Huys, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Ameiridae (Family)

Ameles
     Ameles Burmeister, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Amelidae (Family)
 Ameles Saussure, 1871 accepted as Yersinia Saussure, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Amelidae (Family)
 Ameles Walker, 1855 accepted as Aemilia Kirby, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Amelia
     Amelia Alefeld, 1856 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
     Amelia Hübner, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Amelia Wagner, 1931 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Amellus
 Amellus P. Browne, 1756 accepted as Amellus P. Browne, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Amellus Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Amellus Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Amerhinus
 Amerhinus Schoenherr, 1825 accepted as Ameris Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Amerhinus Schönherr in Sahlberg, 1823 accepted as Ameris Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amerhis
 Amerhis Billberg, 1820 accepted as Ameris Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Amerhis Agassiz, 1846 accepted as Thoracus Chevrolat, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Ameria
     Ameria Walker, 1854 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Ameria Adams, 1861 accepted as Amerianna Strand, 1928 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)

Americonuphis
 Americonuphis Orensanz, 1974 accepted as Australonuphis Paxton, 1979 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Eunicida (Order) > Onuphidae (Family)
     Americonuphis Fauchald, 1973 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Eunicida (Order) > Onuphidae (Family)

Amerina
     Amerina Rafinesque, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
 Amerina Fuhrmann, 1901 accepted as Anonchotaenia Cohn, 1900 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Paruterinidae (Family)
 Amerina A.P. de Candolle ex C.F. Meisner, 1840 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Ameris
     Ameris Dejean, 1821 accepted as Ameris Dejean, 1821 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Ameris J.C. Arthur, 1906 accepted as Phragmidium Link, 1816 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Phragmidiaceae (Family)
 Ameris Schönherr in Germar, 1824 accepted as Thoracus Chevrolat, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amerus
     Amerus Collinge & Shoebotham, 1909 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > (Order) > Collembola (awaiting allocation) (Family)
     Amerus Berlese, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Ameridae (Family)

Amesia
     Amesia Duncan, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Zygaenidae (Family)
     Amesia Robineau-Desvoidy, 1863 accepted as Microphthalma Macquart, 1843 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Amesia A. Nelson & Macbride, 1913 accepted as Epipactis Zinn, 1757 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Ametria
     Ametria Förster, 1862 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Ametria Gistl, 1848 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Melithaeidae (Family)

Ametron
     Ametron Rafinesque, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
     Ametron Hayward, 1940 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Amia
 Amia Gronow in Gray, 1854 accepted as Apogon Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Apogonidae (Family)
 Amia Gistl, 1848 † accepted as Amia Gistl, 1848 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Amia Linnaeus, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Amiiformes (Order) > Amiidae (Family)
 Amia Gronow, 1763 accepted as Apogon Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Apogonidae (Family)
     Amia W.L. Fry, 1983 † (uncertain)· Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
 Amia Gistl, 1848 accepted as Dolichosoma Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melyridae (Family)
 Amia Browne, 1789 accepted as Megalops Lacepède, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Elopiformes (Order) > Megalopidae (Family)

Amicrops
     Amicrops Montrouzier, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Amicrops Saulcy, 1880 accepted as Bergrothia Reitter, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Amictoides
     Amictoides Bezzi, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Empididae (Family)
     Amictoides Gerasimov, 1937 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Amicula
     Amicula Gray, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Chitonida (Order) > Mopaliidae (Family)
     Amicula Witkowski, Lange-Bertalot & Metzeltin, 2000 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Naviculales (Order) > Naviculaceae (Family)
     Amicula Gray, 1840 accepted as Amicula Gray, 1847 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Chitonida (Order) > Mopaliidae (Family)
     Amicula Dworakowska, 1971 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Amicus
     Amicus V.P. Maslov, 1956 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Dasycladaceae (Family)
     Amicus Tschigova, 1977 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Knoxitidae (Family)
     Amicus Koroleva, 1967 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)

Amida
     Amida Lewis, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)
     Amida Nuttall, 1841 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Amieta
     Amieta Ngassam & Grain, 1998 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Hysterocinetidae (Family)
     Amieta Dubois, 1987 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Pyxicephalidae (Family)

Amimopina
     Amimopina Iredale, 1933 accepted as Amimopina Solem, 1964 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Cerastidae (Family)
     Amimopina Solem, 1964 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Enidae (Family)

Amintinus
     Amintinus Lesne, 1938 accepted as Amintinus Borowski & Wegrzynowicz, 2007 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bostrichidae (Family)
     Amintinus Borowski & Wegrzynowicz, 2007 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bostrichidae (Family)

Amira
 Amira Lane, 1914 accepted as Khalilia Neveu-Lemaire, 1924 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Strongylidae (Family)
     Amira Girault, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)

Amissus
 Amissus Chaudri, Akbar & Rasool, 1974 accepted as Brevipalpus Donnadieu, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tenuipalpidae (Family)
     Amissus Stål, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tessaratomidae (Family)

Ammobates
     Ammobates Latreille, 1809 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Ammobates Stannius, 1831 accepted as Stannia Rondani, 1857 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Ammobatoides
     Ammobatoides Radoszkowsky, 1867 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
     Ammobatoides Schenk, 1867 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)

Ammobia
 Ammobia van der Wulp, 1869 accepted as Deuterammobia Bezzi, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
     Ammobia Bezzi & Stein, 1907 accepted as Amobia Robineau-Desvoidy, 1830 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
     Ammobia Billberg, 1820 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Ammocharis
 Ammocharis Burmeister, 1856 accepted as Ammocharis Burmeister, 1856 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Oweniida (Order) > Oweniidae (Family)
     Ammocharis Herbert, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Ammocoetus
     Ammocoetus Erichson, 1847 accepted as Ammoecius Mulsant, 1842 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Ammocoetus Duméril, 1812 accepted as Petromyzon Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Cephalaspidomorphi (Class) > Petromyzontiformes (Order) > Petromyzontidae (Family)

Ammoconia
     Ammoconia Haeckel, 1889 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Ammoconia Lederer, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Ammodesmus
     Ammodesmus Cook, 1896, nom. nud. accepted as Ammodesmus Cook, 1896 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Ammodesmidae (Family)
     Ammodesmus Cook, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Ammodesmidae (Family)

Ammodiscus
     Ammodiscus Reuss, 1862 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Ammodiscidae (Family)
 Ammodiscus Carpenter in Carpenter & Jeffreys, 1871 accepted as Octineon Moseley in Fowler, 1894 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Octineonidae (Family)

Ammodromus
     Ammodromus Guérin-Méneville, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tiphiidae (Family)
 Ammodromus Strickland, 1841 accepted as Ammodramus Swainson, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)

Ammodytes
 Ammodytes Bonaparte, 1831 accepted as Ammodytes Bonaparte, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Ammodytes Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Ammodytidae (Family)

Ammomyia
     Ammomyia Mik, 1883 accepted as Hammomyia Rondani, 1877 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anthomyiidae (Family)
 Ammomyia Stein, 1916 accepted as Hammomyia Rondani, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anthomyiidae (Family)

Ammomys
 Ammomys Bonaparte, 1831 accepted as Microtus Schrank, 1798 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Cricetidae (Family)
 Ammomys Thomas, 1906 accepted as Mesembriomys Palmer, 1906 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)

Ammonia
     Ammonia Herrmannsen, 1852 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Ammonia Brünnich, 1772 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Rotaliidae (Family)
 Ammonia Koch, 1842 accepted as Ammonia Koch, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Ammonicerina
     Ammonicerina Costa, 1856 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Ammonicerina O. G. Costa, 1861 accepted as Omalogyra Jeffreys, 1859 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Omalogyridae (Family)

Ammonites
     Ammonites Bruguière, 1789 † accepted as Ammonites Bruguière, 1789 † (unavailable name)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > (Family)
     Ammonites Gesner, 1758 † accepted as (unavailable name)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > (Family)

Ammonoceras
     Ammonoceras Lamarck, 1822 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Ammonoceras Pfeiffer, 1855 accepted as Happia Bourguignat, 1889 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Scolodontidae (Family)

Ammophila
     Ammophila Kirby, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)
     Ammophila Host, 1809 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Ammophilus
 Ammophilus Perty in Cuvier, 1833 accepted as Podium Fabricius, 1805 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)
 Ammophilus Latreille in Cuvier, 1829 accepted as Ammophila Kirby, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)

Ammothea
     Ammothea Lamarck, 1816 accepted as Lemnalia Gray, 1868 (junior subjective synonym)· Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Lemnaliidae (Family)
     Ammothea Leach, 1814 · Animalia (Kingdom) > Arthropoda (Phylum) > Pycnogonida (Class) > Pantopoda (Order) > Ammotheidae (Family)

Amneris
     Amneris Riedl, 1993 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Cosmopterigidae (Family)
 Amneris Whitley, 1935 accepted as Melanotaenia Gill, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Atheriniformes (Order) > Melanotaeniidae (Family)

Amnesia
 Amnesia Pagenstecher, 1909 accepted as Amesia Duncan, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Zygaenidae (Family)
 Amnesia Horn in Leconte, 1876 accepted as Dyslobus Leconte, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amnicola
     Amnicola Gerbe in Degland & Gerbe, 1867 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Amnicola Gould & Haldeman in Haldeman, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Amnicolidae (Family)

Amniscus
     Amniscus Haldeman, 1847 accepted as Amniscus Dejean, 1835 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Amniscus Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Amnosia
     Amnosia Doubleday, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Amnosia Doubleday, 1844 accepted as Amnosia Doubleday, 1849 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Amoeba
     Amoeba Bory de St. Vincent, 1822 accepted as Amoeba Bory de St. Vincent, 1822 (nomen dubium)· Protozoa (Kingdom) > Amoebozoa (Phylum) > Tubulinea (Class) > Euamoebida (Order) > Amoebidae (Family)
     Amoeba Ehrenberg, 1830 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Tubulinea (Class) > Euamoebida (Order) > Amoebidae (Family)

Amoeboidium
 Amoeboidium accepted as Amoebidium Cienkowsky, 1861 · Protozoa (Kingdom) > Choanozoa (Phylum) > Ichthyosporea (Class) > Eccrinida (Order) > Amoebidiidae (Family)
     Amoeboidium B.V. Timofeev & T.N. Hermann in B.S. Sokolov, 1979 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Amoebophilus
     Amoebophilus P.A. Dangeard, 1910 · Fungi (Kingdom) > Zygomycota (Phylum) > Zoopagomycetes (Class) > Zoopagales (Order) > Cochlonemataceae (Family)
     Amoebophilus Hollande & Guilcher, 1945 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Amolops
 Amolops Tschitscherin, 1898 accepted as Pterostichus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Amolops Cope, 1865 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Ranidae (Family)
 Amolops Hull, 1916 accepted as Ramusella Hammer, 1962 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Oppiidae (Family)

Amomophyllum
 Amomophyllum Engler, 1877 accepted as Spathiphyllum H.W. Schott in H.W. Schott & Endlicher, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)
 Amomophyllum Watelet, 1866 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)

Amomum
 Amomum Linnaeus, 1753 accepted as Zingiber P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)
     Amomum Roxburgh, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)

Amonia
     Amonia Slamka, 2019 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Amonia C.G. Nestler, 1816 accepted as Aremonia Necker ex C.G. Nestler, 1816 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
     Amonia Koch, 1836 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Amorbaeus
 Amorbaeus Agassiz, 1846 accepted as Amorbaius Schönherr, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Amorbaeus Gemminger & Harold, 1871 accepted as Amorbaius Schönherr, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amoreuxia
     Amoreuxia A.P. de Candolle, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Bixaceae (Family)
 Amoreuxia Moquin-Tandon, 1826 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Amoria
     Amoria Gray, 1855 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Volutidae (Family)
 Amoria K.B. Presl, 1831 accepted as Trifolium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Amoroecium
 Amoroecium Woodward, 1856 accepted as Amaroucium Milne Edwards, 1841 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Aplousobranchia (Order) > Polyclinidae (Family)
 Amoroecium Milne Edwards, 1841 accepted as Aplidium Savigny, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Aplousobranchia (Order) > Polyclinidae (Family)
 Amoroecium Agassiz, 1847 accepted as Aplidium Savigny, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Aplousobranchia (Order) > Polyclinidae (Family)

Amorpha
     Amorpha Hübner, 1809 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)
     Amorpha Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Amorphina
     Amorphina Parker & Jones, 1857 accepted as Amorphina Parker & Jones, 1857 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Amorphina Schmidt, 1870 accepted as Halichondria Fleming, 1828 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Suberitida (Order) > Halichondriidae (Family)

Amorphocephalus
 Amorphocephalus Bowdich in T.E. Bowdich, 1825 accepted as Xyrichtys Cuvier, 1814 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Labridae (Family)
 Amorphocephalus Schönherr, 1840 accepted as Amorphocephala Damoiseau, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Amorphocerus
     Amorphocerus Schönherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Amorphocerus Schönherr, 1825 accepted as Amorphocerus Schönherr, 1826 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amorphopus
 Amorphopus Schönherr, 1840 accepted as Calodromus Guérin, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Amorphopus Audinet-Serville, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)
 Amorphopus Hustache, 1931 accepted as Tachylechriops Heller, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Amorphopus Bell, 1858 accepted as Paeduma Rathbun, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Hexapodidae (Family)

Amoura
 Amoura Gray, 1847 accepted as Amaura Møller, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)
     Amoura Folin in Folin & Périer, 1873 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)

Ampedus
 Ampedus Germar, 1844 accepted as Ampedus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
     Ampedus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Ampelis
     Ampelis Morris in Wood, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Coraciiformes (awaiting allocation) (Family)
     Ampelis Linnaeus, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Bombycillidae (Family)
 Ampelis Möhring, 1758 accepted as Ampelis Möhring, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Bombycillidae (Family)

Ampelophyllum
 Ampelophyllum Lesquereux, 1876 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliopsida (awaiting allocation) (Order) > (Family)
     Ampelophyllum A.B. Massalongo, 1859 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Vitales (Order) > Vitaceae (Family)

Ampezzoscala
     Ampezzoscala Bandel & El-Nakh, 1993 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Ampezzoscala Bandel, 1992 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Prosobranchia (awaiting allocation) (Order) > Prosobranchia (awaiting allocation) (Family)

Amphacanthus
     Amphacanthus Dogiel, 1926 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Amphacanthus Bloch & Schneider, 1801 accepted as Siganus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Siganidae (Family)

Amphiacantha
     Amphiacantha Caullery & Mesnil, 1914 · Fungi (Kingdom) > Rozellomycota (Phylum) > Rudimicrosporea (Class) > Metchnikovellida (Order) > Amphiacanthidae (Family)
 Amphiacantha Popofsky, 1904 accepted as Acanthonidium Haeckel, 1887 · Chromista (Kingdom) > Retaria (Phylum) > Acantharea (Class) > Arthracanthida (Order) > (Family)
 Amphiacantha Matsumoto, 1917 accepted as Dougaloplus A.M. Clark, 1970 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Ophiurida (Order) > Amphiuridae (Family)

Amphiactis
 Amphiactis Matsumoto, 1915 accepted as Histampica A.M. Clark, 1970 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Ophiurida (Order) > Ophiactidae (Family)
     Amphiactis Verrill, 1869 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Polyopidae (Family)

Amphianthus
 Amphianthus Kükenthal, 1902 accepted as Amphiacme Kükenthal, 1903 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Scleralcyonacea (Order) > Chunellidae (Family)
     Amphianthus Hertwig, 1882 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Hormathiidae (Family)
 Amphianthus J. Torrey, 1837 accepted as Gratiola Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)

Amphibia
 Amphibia Berthold in Latreille, 1827 accepted as Succinea Draparnaud, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Succineidae (Family)
 Amphibia Stackhouse, 1809 accepted as Bostrychia Montagne in Sagra, 1842 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)
     Amphibia Gray, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > (Order) > (Family)
 Amphibia Perroud & Montrouzier, 1864 accepted as Egadroma Motschoulsky, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Amphiblestrum
     Amphiblestrum Gray, 1848 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Calloporidae (Family)
     Amphiblestrum Schrammen, 1936 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lychniscosida (Order) > Sporadopylidae (Family)

Amphibola
 Amphibola accepted as Amphibolia Macquart, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Amphibola Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Basommatophora incertae sedis (Order) > Amphibolidae (Family)

Amphibolia
     Amphibolia Snellen in Romanoff, 1884 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Amphibolia H.M.L. Bolus ex H. Herre, 1971 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
     Amphibolia Macquart, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Amphibolidina
     Amphibolidina Schmarda, 1849 accepted as Amphibolidina Schmarda, 1849 (taxon inquirendum)· Animalia (Kingdom) > Rotifera (Phylum) > Rotifera incertae sedis (Class) > (Order) > (Family)
     Amphibolidina Schmarda, 1849, nom. nud. accepted as Amphibolidina Schmarda, 1849 (nomen nudum)· Animalia (Kingdom) > Rotifera (Phylum) > Rotifera incertae sedis (Class) > (Order) > (Family)

Amphibolonarzon
     Amphibolonarzon Gistl, 1848 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Amphibolonarzon Villa, 1833 accepted as Amphibolonarzon Villa, 1833 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Latridiidae (Family)

Amphibolus
 Amphibolus Mulsant & Rey, 1863 accepted as Episernus Thomson, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
     Amphibolus Waterhouse, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)
 Amphibolus Bertolani, 1981 accepted as Bertolanius Özdikmen, 2008 · Animalia (Kingdom) > Tardigrada (Phylum) > Eutardigrada (Class) > Parachela (Order) > Eohypsibiidae (Family)
     Amphibolus Klug in Ehrenberg, 1830 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Amphibrachium
 Amphibrachium Hertwig, 1879 accepted as Bibrachium Stechow, 1919 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Anthoathecata incertae sedis (Family)
     Amphibrachium Haeckel, 1881 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Prunobrachiidae (Family)

Amphicampa
 Amphicampa Rabenhorst, 1864 accepted as Entomoneis Ehrenberg, 1845 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Surirellales (Order) > Entomoneidaceae (Family)
     Amphicampa (Ehrenberg) Ralfs, 1861 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Eunotiales (Order) > Eunotiaceae (Family)

Amphicarpa
     Amphicarpa Michaelsen, 1922 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Styelidae (Family)
 Amphicarpa S. Elliott ex Nuttall, 1818 accepted as Amphicarpaea S. Elliott ex Nuttall, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Amphicarydiscus
     Amphicarydiscus Lipman, 1972 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)
     Amphicarydiscus Lipman, 1965 † (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Amphiceras
     Amphiceras Gemmellaro, 1884 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
 Amphiceras Gray, 1847 accepted as Amphiperas Gronovius, 1781 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ovulidae (Family)

Amphichaeta
     Amphichaeta Brauer & Bergenstamm, 1889 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Amphichaeta D. McAlpine, 1904 accepted as Seimatosporium Corda in J. Sturm, 1833 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Amphisphaeriales (Order) > Sporocadaceae (Family)
     Amphichaeta Tauber, 1879 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Naididae (Family)

Amphichlorops
     Amphichlorops Lutz, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)
     Amphichlorops Lutz, 1909 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Amphichoerus
 Amphichoerus Graff, 1891 accepted as Amphiscolops Graff, 1904 · Animalia (Kingdom) > Xenacoelomorpha (Phylum) > Acoela (Class) > (Order) > Convolutidae (Family)
     Amphichoerus Gore, 1874 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Suidae (Family)

Amphicorina
     Amphicorina Quatrefages, 1850 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Sabellidae (Family)
     Amphicorina Claparède, 1864 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Sabellidae (Family)

Amphicoryne
 Amphicoryne Brady, 1884 accepted as Amphicoryna Schlumberger in Milne-Edwards, 1881 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Vaginulinidae (Family)
 Amphicoryne Schlumberger, 1881 accepted as Amphicoryna Schlumberger in Milne-Edwards, 1881 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Vaginulinidae (Family)

Amphicosmia
 Amphicosmia Gardner, 1842 accepted as Cyathea J.E. Smith, 1793 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Cyatheales (Order) > Cyatheaceae (Family)
     Amphicosmia Pilsbry & Vanatta, 1898 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Urocoptidae (Family)

Amphicrania
 Amphicrania Burmeister, 1855 accepted as Clavipalpus Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Amphicrania Dejean, 1833 accepted as Liogenys Guérin, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Amphicrossus
     Amphicrossus Erichson in Germar, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nitidulidae (Family)
 Amphicrossus Huys, 1991 accepted as Ambilimbus Ivanenko, Defaye & Huys, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Erebonasteridae (Family)

Amphicyrta
     Amphicyrta Eschscholtz in Germar, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Byrrhidae (Family)
     Amphicyrta Dejean, 1836 accepted as Amphicyrta Eschscholtz in Germar, 1843 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Byrrhidae (Family)

Amphidiscus
     Amphidiscus Ehrenberg, 1839, nom. nud. † accepted as Amphidiscus Ehrenberg, 1839 † (nomen nudum)· Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > (Order) > Bacillariophyceae incertae sedis (Family)
     Amphidiscus Ehrenberg, 1839 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > (Order) > Bacillariophyceae incertae sedis (Family)

Amphidium
 Amphidium Nylander, 1891 accepted as Epiphloea Trevisan, 1880 · Fungi (Kingdom) > Ascomycota (Phylum) > Lichinomycetes (Class) > Lichinales (Order) > Lichinaceae (Family)
 Amphidium C.G.D. Nees in Sturm, 1819 accepted as Amphidium C.G.D. Nees in Sturm, 1819 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Orthotrichales (Order) > Orthotrichaceae (Family)
     Amphidium W.P. Schimper, 1856 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Dicranales (Order) > Rhabdoweisiaceae (Family)

Amphidoxa
     Amphidoxa Albers, 1850 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)
 Amphidoxa A.P. de Candolle, 1838 accepted as Gnaphalium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Amphidromus
 Amphidromus Hessle, 1925 accepted as Amphiduros Hartman, 1959 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Hesionidae (Family)
     Amphidromus Albers, 1850 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)

Amphigenes
 Amphigenes Janka, 1860 accepted as Festuca Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Amphigenes Meyrick, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Xyloryctidae (Family)

Amphigynus
 Amphigynus Bedel, 1879 accepted as Amphigynus Bedel, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Amphigynus Haliday, 1841 accepted as Calathus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Amphilestes
 Amphilestes Selys, 1862 accepted as Rhinagrion Calvert, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Megapodagrionidae (Family)
     Amphilestes Blackwelder, 1946 accepted as Aphilesthes Bates, 1881 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Amphilestes Owen, 1859 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Eutriconodonta (Order) > Amphilestidae (Family)

Amphilocus
     Amphilocus Dejean, 1836 accepted as Iphiclus Chevrolat in Dejean, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
 Amphilocus Ortiz & Lalana, 2002 accepted as Amphilochus Spence Bate, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Amphilochidae (Family)

Amphiloma
 Amphiloma Körber, 1855 accepted as Caloplaca Th. Fries, 1860 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Teloschistaceae (Family)
 Amphiloma Nylander, 1855 accepted as Lepraria Acharius, 1803 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Stereocaulaceae (Family)

Amphimallon
 Amphimallon Berthold in Latreille, 1827 accepted as Amphimallon Le Peletier & Serville, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Amphimallon Le Peletier & Serville, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Amphimenes
     Amphimenes Bertoni, 1923 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Amphimenes Bates, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Amphimonhystera
     Amphimonhystera Allgén, 1929 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Monhysterida (Order) > Xyalidae (Family)
     Amphimonhystera Timm, 1961 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Monhysterida (Order) > Xyalidae (Family)

Amphimoschus
     Amphimoschus Gray, 1852 accepted as Amphimoschus Gray, 1852 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Tragulidae (Family)
     Amphimoschus Bourgeois, 1873 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)
     Amphimoschus Gervais, 1867-69 † accepted as Amphimoschus Gervais, 1867-69 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)

Amphinema
     Amphinema Haeckel, 1879 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Pandeidae (Family)
     Amphinema P.A. Karsten, 1892 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Atheliales (Order) > Atheliaceae (Family)

Amphinome
 Amphinome Meigen, 1800 accepted as Amphinome Meigen, 1800 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Amphinome Bruguière, 1789 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Amphinomida (Order) > Amphinomidae (Family)

Amphinomia
 Amphinomia A.P. de Candolle, 1825 accepted as Lotononis (A.P. de Candolle) Ecklon & Zeyher, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Amphinomia Hooper, 1991 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Agelasida (Order) > Agelasidae (Family)

Amphiodon
     Amphiodon Rafinesque, 1818 accepted as Amphiodon Rafinesque, 1818 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osteoglossiformes (Order) > Hiodontidae (Family)
 Amphiodon J. Huber, 1909 accepted as Poecilanthe Bentham, 1860 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Amphiodon Rafinesque, 1819 accepted as Hiodon Lesueur, 1818 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osteoglossiformes (Order) > Hiodontidae (Family)

Amphion
     Amphion Reiche, 1840 accepted as Neoamphion Monné, 2005 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Amphion Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)
     Amphion R.A. Salisbury, 1866 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
     Amphion Pander, 1830 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Pliomeridae (Family)
     Amphion H. Milne Edwards, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphionidacea (Order) > Amphionididae (Family)
 Amphion Gistl, 1848 accepted as Axius Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Processidae (Family)

Amphionycha
     Amphionycha Thomson, 1860 accepted as Amphionycha Dejean, 1835 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Amphionycha LeConte, 1852 accepted as Hemierana Aurivillius, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Amphionycha Chevrolat, 1838 accepted as Amphionycha Dejean, 1835 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Amphionycha Leséleuc, 1844 accepted as Quatiara Lane, 1972 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Amphionycha Dejean, 1835 accepted as Adesmus Lepeletier & Audinet-Serville in Latreille, 1825 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Amphipalaemon
 Amphipalaemon Nobili, 1901 accepted as Anchistioides Paul'son, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Anchistioididae (Family)
 Amphipalaemon Balss, 1921 accepted as Balssia Kemp, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Palaemonidae (Family)

Amphipeltis
     Amphipeltis Salter, 1863 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Amphipeltis Carl, 1914 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Polydesmidae (Family)

Amphipogon
     Amphipogon Wahlberg, 1845 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Piophilidae (Family)
     Amphipogon R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Amphiporella
     Amphiporella Girty, 1910 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Trepostomatida (Order) > Trepostomatida (awaiting allocation) (Family)
 Amphiporella Friedrich, 1939 accepted as Germanemertes Kajihara, 2021 · Animalia (Kingdom) > Nemertea (Phylum) > Enopla (Class) > Hoplonemertea (Order) > Amphiporidae (Family)

Amphiprion
     Amphiprion Bloch & Schneider, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Pomacentridae (Family)
 Amphiprion Townes, 1961 † accepted as Lipoprion Townes, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Amphipyga
     Amphipyga Osborn, 1928 accepted as Amphipyga Osborn, 1928 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Amphipyga Osborn, 1930 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Amphiro
     Amphiro McIntosh, 1922 accepted as Terebella Linnaeus, 1767 (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)
 Amphiro Kinberg, 1865 accepted as Marphysa Quatrefages, 1866 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Eunicida (Order) > Eunicidae (Family)

Amphiroa
 Amphiroa Blainville, 1830 accepted as Abyla Quoy & Gaimard, 1827 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Abylidae (Family)
     Amphiroa J.V.F. Lamouroux, 1812 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Corallinales (Order) > Lithophyllaceae (Family)

Amphisa
     Amphisa Curtis, 1828 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Amphisa Robineau-Desvoidy, 1863 accepted as Linnaemya Robineau-Desvoidy, 1830 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Amphisaurus
     Amphisaurus Barkas, 1870 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
 Amphisaurus Marsh, 1877 † accepted as Anchisaurus Marsh, 1885 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Saurischia (Order) > Anchisauridae (Family)

Amphiscolops
     Amphiscolops Graff, 1904 · Animalia (Kingdom) > Xenacoelomorpha (Phylum) > Acoela (Class) > (Order) > Convolutidae (Family)
     Amphiscolops Hull, 1962 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)

Amphisilen
 Amphisilen Klein, 1775 accepted as Centriscus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Syngnathiformes (Order) > Centriscidae (Family)
 Amphisilen Walbaum, 1792 accepted as Centriscus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Syngnathiformes (Order) > Centriscidae (Family)

Amphisphaerella
     Amphisphaerella Haeckel, 1887 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)
     Amphisphaerella (P.A. Saccardo) Kirschstein, 1934 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Xylariales (Order) > Xylariales incertae sedis (Family)

Amphispina
     Amphispina Clark, 1970 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Ophiuroidea (awaiting allocation) (Order) > Ophiuroidea (awaiting allocation) (Family)
     Amphispina Nielsen, 1932 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Ophiurida (Order) > Amphiuridae (Family)

Amphissa
 Amphissa O. Pickard-Cambridge, 1882 accepted as Altella Simon, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Dictynidae (Family)
     Amphissa H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Columbellidae (Family)
     Amphissa Walker, 1855 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Amphistylus
     Amphistylus Haeckel, 1881 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Spumellaria (awaiting allocation) (Family)
 Amphistylus Gahan, 1890 accepted as Hypamazso Barrion & Khan, 2003 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Amphitasus
 Amphitasus Csiki, 1931 accepted as Amphitasus Csiki, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Amphitasus Bates, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Amphitectus
 Amphitectus Dahlbom, 1842 accepted as Amphitectus Hartig, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Figitidae (Family)
     Amphitectus Hartig, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Figitidae (Family)

Amphitherium
 Amphitherium accepted as Amphithera Meyrick, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Roeslerstammiidae (Family)
     Amphitherium de Blainville, 1838 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Amphitheriida (Order) > Amphitheriidae (Family)

Amphithoe
     Amphithoe Rafinesque, 1815 [2] accepted as (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
 Amphithoe Dana, 1853 accepted as Ampithoe Leach, 1814 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ampithoidae (Family)
     Amphithoe Rafinesque, 1815 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Anostraca (Order) > Anostraca (awaiting allocation) (Family)
     Amphithoe Leach, 1814 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ampithoidae (Family)

Amphitholus
     Amphitholus Haeckel, 1887 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Tholoniidae (Family)
 Amphitholus F. Schütt, 1895 accepted as Monaster Schütt, 1895 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Amphilothales (Order) > Amphilothaceae (Family)

Amphithrix
 Amphithrix Bornet & Flahault, 1886 accepted as Homoeothrix (G. Thuret ex E. Bornet & C. Flahault) O. Kirchner in A. Engler & Prantl, 1898 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Oscillatoriales (Order) > Homoeotrichaceae (Family)
     Amphithrix Ragonot in Romanoff, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Amphithrix Español, 1952 accepted as Amphithrixoides Bouchard & Löbl, 2008 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Amphitoe
     Amphitoe Dana, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ampithoidae (Family)
 Amphitoe Latreille, 1817 accepted as Ampithoe Leach, 1814 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ampithoidae (Family)

Amphitrema
     Amphitrema Wright, 1868 accepted as Amphitrema Wright, 1868 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Amphitrema Archer, 1867 · Chromista (Kingdom) > Bigyra (Phylum) > Labyrinthulea (Class) > Amphitremida (Order) > Amphitremidae (Family)

Amphitretus
 Amphitretus Marshall, 1942 accepted as Rhadinoscapus Kolbe, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Amphitretus Blanchard, 1894 accepted as Echinophallus Schumacher, 1914 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Bothriocephalidea (Order) > Echinophallidae (Family)
     Amphitretus Hoyle, 1885 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Octopoda (Order) > Amphitretidae (Family)

Amphitrite
     Amphitrite Müller, 1771 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)
 Amphitrite Ascanius, 1774 accepted as Dendronotus Alder & Hancock, 1845 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Dendronotidae (Family)
 Amphitrite De Haan in Siebold, 1833 accepted as Portunus Weber, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Portunidae (Family)
 Amphitrite P.T. Cleve ex O. Kunze, 1891 accepted as Auricula Castracane, 1873 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Surirellales (Order) > Auriculaceae (Family)

Amphitrix
 Amphitrix Kützing ex Bornet & Flahault, 1886 accepted as Homoeothrix (G. Thuret ex E. Bornet & C. Flahault) O. Kirchner in A. Engler & Prantl, 1898 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Oscillatoriales (Order) > Homoeotrichaceae (Family)
 Amphitrix Amsel, 1935 accepted as Amphithrix Ragonot in Romanoff, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Amphitropis
 Amphitropis J. Gicklhorn, 1920 accepted as Pteromonas Seligo, 1887 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Phacotaceae (Family)
     Amphitropis L. Rabenhorst, 1868 · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)

Amphius
 Amphius Gistl, 1834 accepted as Hypnoidus Dillwyn, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Amphius Sollas, 1888 accepted as Neamphius de Laubenfels, 1953 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Thoosidae (Family)

Amphodus
     Amphodus J. Lindley, 1827 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Amphodus Peters, 1872 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hylidae (Family)

Amphora
     Amphora Ehrenberg ex Kützing, 1844 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Thalassiophysales (Order) > Catenulaceae (Family)
     Amphora Cumberland, 1826 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Amphora Wollaston, 1864 accepted as Laparocerus Schönherr, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Amphora Willems, 1994 † accepted as Coronadinium Willems in Williams, Lentin & Fensome, 1998 † · Plantae (Kingdom) > Calcitarcha (Phylum) > (Class) > (Order) > Pithonellidae (Family)

Amphorella
 Amphorella Borza & Samuel, 1977 † accepted as Spiriamphorella Borza & Samuel, 1977 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Nubeculariidae (Family)
     Amphorella Lowe, 1852 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Ferussaciidae (Family)
 Amphorella T.S. Brandegee, 1910 accepted as Matelea Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Amphorella Daday, 1887 accepted as Amphorides Strand, 1928 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Tintinnida (Order) > Tintinnidae (Family)
     Amphorella † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)
 Amphorella Léger, 1892 accepted as Amphoroides Labbé, 1899 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Actinocephalidae (Family)

Amphorellopsis
 Amphorellopsis Golemansky, 1970 accepted as Ogdeniella Golemansky, 1982 · Chromista (Kingdom) > Cercozoa (Phylum) > Thecofilosea (Class) > Tectofilosida (Order) > Psammonobiotidae (Family)
     Amphorellopsis Kofoid & Campbell, 1929 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Tintinnida (Order) > Tintinnidae (Family)

Amphoridium
 Amphoridium Servit, 1954 accepted as · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
 Amphoridium A. Massalongo, 1852 accepted as Verrucaria H.A. Schrader, 1794 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Verrucariales (Order) > Verrucariaceae (Family)
     Amphoridium Haeckel, 1869 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
 Amphoridium W.P. Schimper, 1860 accepted as Amphidium W.P. Schimper, 1856 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Dicranales (Order) > Rhabdoweisiaceae (Family)

Amphorina
 Amphorina Quatrefages, 1844 accepted as Eubranchus Forbes, 1838 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Eubranchidae (Family)
 Amphorina d'Orbigny, 1849 accepted as Hyalinonetrion Patterson & Richardson, 1988 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Lagenidae (Family)

Amphoriscus
     Amphoriscus Haeckel, 1870 · Animalia (Kingdom) > Porifera (Phylum) > Calcarea (Class) > Sycettida (Order) > Amphoriscidae (Family)
     Amphoriscus Sara, 1951 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Amphoropsis
     Amphoropsis (Cleve) Mereschkowsky, 1901 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Naviculales (Order) > Amphipleuraceae (Family)
     Amphoropsis Spegazzini, 1918 · Fungi (Kingdom) > Ascomycota (Phylum) > Laboulbeniomycetes (Class) > Pyxidiophorales (Order) > Pyxidiophoraceae (Family)

Amphorosteus
     Amphorosteus Gibbes, 1850 † accepted as Amphorosteus Gibbes, 1851 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Squamata (awaiting allocation) (Family)
     Amphorosteus Gibbes, 1851 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Squamata (awaiting allocation) (Family)

Amphorula
 Amphorula L. Dodekova, 1969 † accepted as Amphorulacysta Y.-Y. Chen, 2013 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacaceae (Family)
     Amphorula Haeckel, 1872 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
 Amphorula W.B. Grove, 1922 accepted as Chaetoconis F.E. Clements, 1909 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Xylariales (Order) > Hyponectriaceae (Family)

Amphymenium
     Amphymenium Haeckel, 1881 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Prunobrachiidae (Family)
     Amphymenium Kunth in Humboldt, Bonpland & Kunth, 1824 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Amphyplatys
 Amphyplatys Schwarz, 1906 accepted as Amphiplatys Sharp, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Amphyplatys Dolin, 1976 accepted as Amphiplatys Sharp, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Ampithoe
 Ampithoe Rafinesque, 1815 accepted as Ampithoe Rafinesque, 1815 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Ampithoe Leach, 1814 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ampithoidae (Family)

Amplaria
     Amplaria Chamberlin, 1941 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Striariidae (Family)
 Amplaria Knight-Jones, 1973 accepted as Amplicaria Knight-Jones, 1984 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Serpulidae (Family)

Ampliata
     Ampliata Wagner, 1907 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Ampliata Arkell, 1934 † accepted as Perampliata Arkell, 1936 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneroida (awaiting allocation) (Family)

Amplicephalus
     Amplicephalus de Long, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Amplicephalus Stitt, 1970 † accepted as Magnacephalus Stitt, 1971 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)

Ampliotrema
     Ampliotrema Kalb ex Kalb, 2006 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Ostropales (Order) > Graphidaceae (Family)
 Ampliotrema Kalb, 2004 accepted as Ampliotrema Kalb ex Kalb, 2006 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Ostropales (Order) > Graphidaceae (Family)

Amplypterus
 Amplypterus Wiegmann, 1838 accepted as Eleothreptus Gray, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Caprimulgiformes (Order) > Caprimulgidae (Family)
     Amplypterus Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)

Ampullacera
 Ampullacera Agassiz, 1846 accepted as Ampullacera Agassiz, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Basommatophora incertae sedis (Order) > Amphibolidae (Family)
 Ampullacera Quoy & Gaimard, 1832 accepted as Amphibola Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Basommatophora incertae sedis (Order) > Amphibolidae (Family)

Ampullaria
 Ampullaria Couch, 1963 accepted as Ampullariella Couch, 1964 (Approved Lists, 1980) · Bacteria (Kingdom) > Actinobacteria (Phylum) > Actinobacteria (Class) > Actinomycetales (Order) > Micromonosporaceae (Family)
 Ampullaria A.L. Smith, 1903 accepted as Melanospora Corda, 1837 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Melanosporales (Order) > Ceratostomataceae (Family)
 Ampullaria Lamarck, 1799 accepted as Pila Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Ampullariidae (Family)

Ampullariella
     Ampullariella Couch, 1964 (Approved Lists, 1980) · Bacteria (Kingdom) > Actinobacteria (Phylum) > Actinobacteria (Class) > Actinomycetales (Order) > Micromonosporaceae (Family)
     Ampullariella Raspail, 1909 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Ampullaster
     Ampullaster Jankowski, 1976 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Peritrichida (Order) > Operculariidae (Family)
     Ampullaster Fell, 1963 † · Animalia (Kingdom) > Echinodermata (Phylum) > Somasteroidea (Class) > Goniactinida (Order) > Goniactinida (awaiting allocation) (Family)

Ampullina
 Ampullina Quélet, 1875 accepted as Leptosphaeria Cesati & De Notaris, 1863 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Leptosphaeriaceae (Family)
     Ampullina Guppy, 1895 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Ampullina Bowdich, 1822 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Naticidae (Family)

Ampusa
 Ampusa Rambur, 1838 accepted as Empusa Illiger in Kugelann, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Empusidae (Family)
 Ampusa Pictet-Baraban, 1831 accepted as Empusa Illiger in Kugelann, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Empusidae (Family)

Ampycophora
     Ampycophora Meyrick, 1882 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Ampycophora Wahlberg, 1847 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Ampyx
     Ampyx Dalman, 1827 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Raphiophoridae (Family)
 Ampyx Agassiz, 1846 accepted as Corynomalus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)
     Ampyx Walker, 1855 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Amsteinia
     Amsteinia Bremi, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Amsteinia Verhoeff, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Julida (Order) > Blaniulidae (Family)
     Amsteinia Bremi, 1857 accepted as Amsteinia Bremi, 1857 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Amurella
 Amurella A.G. Vologdin, 1965 † accepted as · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Cyanophyceae (awaiting allocation) (Order) > Cyanophyceae (awaiting allocation) (Family)
 Amurella Kluge, 1997 accepted as Ephemerella Walsh, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Ephemerellidae (Family)

Amuria
     Amuria Staudinger in Romanoff, 1887 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Amuria Whalen & Carter, 1998 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)
     Amuria Aurivillius, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lasiocampidae (Family)
     Amuria Brunner, 1893 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Amussium
 Amussium Herrmannsen, 1846 accepted as Amusium Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Ostreida (Order) > Pectinidae (Family)
 Amussium Agassiz, 1846 accepted as Amusium Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Ostreida (Order) > Pectinidae (Family)

Amycla
     Amycla Koch, 1857 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Amycla Rafinesque, 1815 accepted as Mantispa Illiger in Kugelann, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Mantispidae (Family)
 Amycla H. Adams & A. Adams, 1853 † accepted as Tritia Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)
     Amycla Doubleday in Doubleday & Westwood, 1849 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Amycle
     Amycle Stål, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Fulgoridae (Family)
 Amycle O. Pickard-Cambridge, 1873 accepted as Amyciaea Simon, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Thomisidae (Family)

Amycles
 Amycles Walker, 1856 accepted as Anycles Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Amycles Herrich-Schäffer, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Amycterus
 Amycterus Lacordaire, 1863 accepted as Gagatophorus Jekel, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Amycterus Schönherr, 1826 accepted as Amycterus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Amycterus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amycus
     Amycus Rafinesque, 1815 accepted as Amycus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Amycus Stål, 1855 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Amycus Koch, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Amyda
     Amyda Oppel, 1811 accepted as Amyda Geoffroy, 1809 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Trionychidae (Family)
 Amyda Geoffroy, 1809 accepted as Amyda Geoffroy, 1809 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Trionychidae (Family)
 Amyda Oken, 1816 accepted as Amyda Geoffroy, 1809 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Trionychidae (Family)

Amydala
     Amydala Gray, 1847 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Amydala Pascoe, 1871 accepted as Ampagia Pascoe, 1870 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amydona
 Amydona Walker, 1855 accepted as Perola Walker, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Limacodidae (Family)
 Amydona Walker, 1855 [2] accepted as Trabala Walker, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lasiocampidae (Family)

Amydropa
     Amydropa Reitter, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cryptophagidae (Family)
     Amydropa Reitter, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Silvanidae (Family)

Amygdala
     Amygdala Roemer, 1857 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
     Amygdala Gray, 1825 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Amygdala Hustache, 1936 accepted as Ampagia Pascoe, 1870 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Amygdalus
 Amygdalus O. Kuntze, 1891 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Amygdalus Linnaeus, 1753 accepted as Prunus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)

Amyia
     Amyia Thomson, 1878 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Amyia Saunders, 1871 accepted as Euamyia Kerremans, 1903 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Amylocarpus
 Amylocarpus Barbosa Rodrigues, 1902 accepted as Bactris N.J. Jacquin ex Scopoli, 1777 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
     Amylocarpus Currey, 1859 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Leotiomycetes incertae sedis (Order) > Leotiomycetes incertae sedis (Family)

Amymoma
 Amymoma Latreille, 1796 accepted as Amymoma Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Tegastidae (Family)
     Amymoma Pascoe, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Amymone
 Amymone Savigny, 1822 accepted as Amymone Savigny, 1822 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
 Amymone Claus, 1863 accepted as Parategastes G.O. Sars, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Tegastidae (Family)
 Amymone Agassiz, 1846 accepted as Amymone Agassiz, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Amymone Claus, 1860 accepted as Tegastes Norman, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Tegastidae (Family)
 Amymone O.F. Müller, 1785 accepted as Tegastes Norman, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Tegastidae (Family)

Amyntas
     Amyntas Wollaston, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Amyntas Kinberg, 1866 accepted as Amynthas Kinberg, 1866 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Megascolecidae (Family)

Amyris
     Amyris Marcus & Marcus, 1968 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Faubelidae (Family)
     Amyris P. Browne, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Amytis
 Amytis Lesson, 1831 accepted as Diaphorillas Oberholser, 1899 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Maluridae (Family)
 Amytis Savigny, 1822 accepted as Proceraea Ehlers, 1864 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Syllidae (Family)

Amyxa
 Amyxa Troschel, 1852 accepted as Prisogaster Mörch, 1850 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Turbinidae (Family)
     Amyxa Van Tieghem, 1893 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Thymelaeaceae (Family)

Anabaena
     Anabaena Bory de Saint-Vincent ex Bornet & Flahault, 1886 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Nostocaceae (Family)
 Anabaena A.H.L. Jussieu, 1824 accepted as Romanoa Trevisan, 1848 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Anabaenella
 Anabaenella H. Welsh, 1964 accepted as Pseudanabaena Lauterborn, 1915 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Synechococcales (Order) > Pseudanabaenaceae (Family)
 Anabaenella Pax & K. Hoffmann in Engler, 1919 accepted as Romanoa Trevisan, 1848 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Anabarella
     Anabarella A.N. Abramova, 1984 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cupressales (Order) > Sciadopityaceae (Family)
     Anabarella Zakharov, 1970 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Anabarella Vostokova, 1962 † · Animalia (Kingdom) > Mollusca (Phylum) > Monoplacophora (Class) > Pelagiellida (Order) > Pelagiellida (awaiting allocation) (Family)

Anabaria
     Anabaria Komar, 1964 † · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Acrescentida (Order) > Tungussidae (Family)
     Anabaria A.G. Vologdin, 1937 † · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Cyanophyceae (awaiting allocation) (Order) > Cyanophyceae (awaiting allocation) (Family)
     Anabaria Lopushinskaya, 1965 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Atrypida (Order) > Atrypinidae (Family)

Anabasis
     Anabasis Heinrich, 1956 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Anabasis Trojan, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)
     Anabasis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Anabathra
     Anabathra Möschler, 1887 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Anabathra H.T.M. Witham, 1833 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Lepidodendrales (Order) > Lepidodendrales (awaiting allocation) (Family)

Anableps
 Anableps Bloch, 1794 accepted as Anableps Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cyprinodontiformes (Order) > Anablepidae (Family)
     Anableps Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cyprinodontiformes (Order) > Anablepidae (Family)
 Anableps Gronow, 1763 accepted as Anableps Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cyprinodontiformes (Order) > Anablepidae (Family)

Anabolina
 Anabolina Strand, 1917 accepted as Anabolodes Strand, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
     Anabolina Banks, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Limnephilidae (Family)

Anabolus
 Anabolus de Bonvouloir, 1871 accepted as Anabolodes Strand, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
 Anabolus Gistl, 1857 accepted as Irichroa Newman, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Anacampseros
 Anacampseros P. Browne, 1756 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Portulacaceae (Family)
 Anacampseros P. Miller, 1754 accepted as Sedum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)
     Anacampseros Linnaeus, 1758 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Anacampserotaceae (Family)

Anacampta
     Anacampta Loew, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ulidiidae (Family)
 Anacampta Miers, 1878 accepted as Tabernaemontana Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Anacantha
 Anacantha Solier in Gay, 1851 accepted as Dilobitarsus Latreille, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
     Anacantha (M.M. Iljin) J. Soják, 1982 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Anacanthopus
 Anacanthopus Blackburn, 1898 accepted as Anacanthodes Britton, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Anacanthopus Germain, 1903 accepted as Leiomelus Ander, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Anostostomatidae (Family)
     Anacanthopus Montandon, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Anacanthus
 Anacanthus Minding, 1832 accepted as Malapterurus Lacepède, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Malapteruridae (Family)
 Anacanthus Ehrenberg in Van der Hoeven, 1833 accepted as Urogymnus Müller & Henle, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Dasyatidae (Family)
     Anacanthus Audinet-Serville, 1832 accepted as Chorenta Gistl, 1848 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anacanthus Gray, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Monacanthidae (Family)
 Anacanthus Cuvier, 1829 (ex Ehrenberg) accepted as Dasyatis Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Dasyatidae (Family)
     Anacanthus Uhler, 1860 accepted as Homoeocerus Burmeister, 1835 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coreidae (Family)

Anacardium
     Anacardium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)
 Anacardium Lamarck, 1783 accepted as Anacardium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)

Anacasnonia
 Anacasnonia Liebke, 1938 accepted as Archicolliuris Liebke, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Anacasnonia Csiki, 1932 accepted as Anacasnonia Csiki, 1932 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Anacharis
     Anacharis Dalman, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Figitidae (Family)
 Anacharis L.C. Richard, 1814 accepted as Elodea A. Michaux, 1803 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Hydrocharitaceae (Family)

Anachilus
 Anachilus Chapman, 1928 accepted as Simoxenops Chapman, 1937 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Furnariidae (Family)
 Anachilus Leconte, 1861 accepted as Selonodon Latreille, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Anachoreta
     Anachoreta O'Dogherty, 1994 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)
 Anachoreta Gistl, 1848 accepted as Diprion Schrank, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Diprionidae (Family)

Anacis
     Anacis Porter, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Anacis Schrank, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Anacolliuris
     Anacolliuris Csiki, 1932 accepted as Anacolliuris Csiki, 1932 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Anacolliuris Liebke, 1938 accepted as Archicolliuris Liebke, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Anacostia
     Anacostia E.M. Friis, P.R. Crane & K.R. Pedersen, 1997 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliopsida (awaiting allocation) (Order) > (Family)
     Anacostia Shaffer, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Anactinia
     Anactinia (J.D. Hooker) E.J. Remy in C. Gay, 1849 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Anactinia Annandale, 1909 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Ceriantharia (Order) > Arachnactidae (Family)

Anactis
     Anactis Ehrenberg, 1834 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Ceriantharia (Order) > Arachnactidae (Family)
     Anactis Rafinesque, 1815 accepted as Anactis Rafinesque, 1815 (nomen nudum)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Anactis Cassini in F. Cuvier, 1827 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Anacyrthosiphon
     Anacyrthosiphon Basu, Ghosh & Raychaudhuri, 1976 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Anacyrthosiphon Raychaudhuri, Ghosh & Basu, 1980 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Anadara
     Anadara Gray, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)
 Anadara Moore, 1883 accepted as Euploea Fabricius, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Anadara Deshayes, 1830 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Anadasmus
 Anadasmus Looss, 1899 accepted as Orchidasma Looss, 1900 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Telorchiidae (Family)
     Anadasmus Walsingham, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)

Anadema
     Anadema Meuschen, 1787 accepted as (unavailable name)· Animalia (Kingdom) > Echinodermata (Phylum) > (Class) > (Order) > (Family)
 Anadema J.G. Agardh, 1846 accepted as Acrosiphonia J.G. Agardh, 1846 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)
     Anadema H. Adams & A. Adams, 1854 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Colloniidae (Family)

Anadyomene
     Anadyomene J.V.F. Lamouroux, 1812 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Cladophorales (Order) > Anadyomenaceae (Family)
     Anadyomene Fritsch, 1900 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Protoblattoidea (Order) > Protoblattoidea (awaiting allocation) (Family)
 Anadyomene Gistl, 1848 accepted as Anadyomene J.V.F. Lamouroux, 1812 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Cladophorales (Order) > Anadyomenaceae (Family)

Anaedes
 Anaedes Agassiz, 1846 accepted as Anaides Westwood, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)
     Anaedes Agassiz, 1846 [2] accepted as Anaedus Blanchard, 1842 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Anaedus
     Anaedus Dejean, 1834 accepted as Anaedus Blanchard, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Anaedus Blanchard, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Anaeretes
 Anaeretes Cabanis & Heine, 1860 accepted as Anairetes Reichenbach, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
     Anaeretes Dejean, 1836 accepted as Dichelonyx Harris, 1826 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Anaesthetis
     Anaesthetis Mulsant, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anaesthetis Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anagasta
     Anagasta Radoman, 1973 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)
     Anagasta Heinrich, 1956 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Anaglyptus
     Anaglyptus A. Milne-Edwards, 1873 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Decapoda (awaiting allocation) (Family)
 Anaglyptus Mulsant, 1839 accepted as Anaglyptus Mulsant, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anagnia
     Anagnia Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Anagnia Stål, 1861 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Anagonia
     Anagonia Ameghino, 1904 † accepted as Astrapogonia Kretzoi & Kretzoi, 2000 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > (Family)
     Anagonia Brauer & Bergenstamm, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Anahedenstroemia
     Anahedenstroemia Spath, 1934 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Anahedenstroemia Hyatt in Eastman-Zittel, 1900 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Anahuacia
     Anahuacia Hoffmann, 1963 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombiculidae (Family)
     Anahuacia Gruendel, 1972 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Anaides
 Anaides Baird, 1849 accepted as Aneides Baird in Baird-Heck, 1851 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Caudata (Order) > Plethodontidae (Family)
     Anaides Westwood, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)

Anais
     Anais Bonaparte, 1854 accepted as Petasophora Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)
     Anais Lesson, 1843 accepted as Bolinopsis L. Agassiz, 1860 (junior homonym)· Animalia (Kingdom) > Ctenophora (Phylum) > Tentaculata (Class) > Lobata (Order) > Bolinopsidae (Family)
     Anais Lesson, 1840 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Corvidae (Family)

Anaitis
 Anaitis Malmgren, 1865 accepted as Paranaitis Southern, 1914 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Phyllodocidae (Family)
     Anaitis Duponchel in Godart, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Anaitis Römer, 1857 accepted as Placamen Iredale, 1925 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
     Anaitis A.P. de Candolle, 1836 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Analcis
 Analcis Schönherr, 1833 accepted as Tyloderma Say, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Analcis Say, 1831 accepted as Tyloderma Say, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Analcis Wagler, 1830 accepted as Dasypeltis Wagler, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Analectis
     Analectis A.L. Jussieu ex Jaume Saint-Hilaire, 1805 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)
     Analectis Daniltshenko, 1980 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lampriformes (Order) > Lampriformes (awaiting allocation) (Family)

Anama
     Anama Newton & Chandler, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anama Martins, 2005 accepted as Urimaso Galileo, Rosa & Santos-Silva, 2020 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anamenia
     Anamenia Ventenat, 1803 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)
     Anamenia Nierstrasz, 1908 · Animalia (Kingdom) > Mollusca (Phylum) > Aplacophora (Class) > Cavibelonia (Order) > Strophomeniidae (Family)

Anamorphus
     Anamorphus Leconte, 1878 accepted as Anamorphus Leconte & Horn, 1883 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)
     Anamorphus Leconte & Horn, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)

Ananas
     Ananas P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)
 Ananas J. Gaertner, 1788 accepted as Bromelia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)

Anancites
     Anancites Perkovsky, 2022 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lymexylidae (Family)
     Anancites Lovén, 1883 accepted as Ananchites Lamarck, 1801 † (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Holasteridae (Family)

Anancylus
     Anancylus Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anancylus Dejean, 1835 accepted as Anancylus Thomson, 1864 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Anancylus Gutiérrez Gregoric, 2012 accepted as Sineancylus Gutiérrez Gregoric, 2014 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)

Anania
 Anania Thorell, 1895 accepted as Artonis Thorell in Simon, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
     Anania El-Nakhal, 2010 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Globigerinida (Order) > Abathomphalidae (Family)
     Anania Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)

Ananthura
     Ananthura Barnard, 1925 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Antheluridae (Family)
     Ananthura H. Robinson & J.J. Skvarla, 2011 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Ananus
     Ananus Sluiter, 1880 accepted as Holothuria Linnaeus, 1767 (nomen dubium)· Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Holothuriida (Order) > Holothuriidae (Family)
     Ananus Rubtzov, 1977 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Marimermithida (Order) > Marimermithidae (Family)

Anapa
 Anapa Gray, 1853 accepted as Anapella Dall, 1895 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Mesodesmatidae (Family)
     Anapa Gray, 1847 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Lasaeidae (Family)
 Anapa Gray, 1842 accepted as Lasaea Brown, 1827 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Lasaeidae (Family)

Anaperus
 Anaperus Mabille & Boullet, 1919 accepted as Caicella Hemming, 1934 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
     Anaperus Troschel, 1846 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Cucumariidae (Family)
     Anaperus Graff, 1911 accepted as Thalassoanaperus Rivaz Hernández, 2018 (junior homonym)· Animalia (Kingdom) > Xenacoelomorpha (Phylum) > Acoela (Class) > (Order) > Convolutidae (Family)

Anaphora
 Anaphora Gistl, 1848 accepted as Idiellana Cotton & Godfrey, 1942 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Sertulariidae (Family)
     Anaphora Clemens, 1859 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Anaphora Gagnepain, 1932 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Anapolemon
 Anapolemon Wasmann, 1916 accepted as Micropolemon Wasmann, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Anapolemon Wasmann, 1917 accepted as Micropolemon Wasmann, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Anapriona
     Anapriona Breuning, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anapriona Gilmour, 1959 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anaptychus
 Anaptychus Stimpson, 1860 accepted as Ala Lockington, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Majidae (Family)
     Anaptychus Oppel, 1856 † accepted as (nomen dubium)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Aptychi (awaiting allocation) (Family)

Anapus
     Anapus Stål, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
 Anapus Bergendal, 1892 accepted as Ascomorpha Perty, 1850 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Gastropodidae (Family)

Anarhynchus
     Anarhynchus Quoy & Gaimard in d'Urville, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Charadriidae (Family)
 Anarhynchus Guérin-Méneville, 1838 accepted as Calochromus Guérin-Méneville, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lycidae (Family)

Anarmostus
 Anarmostus Putnam, 1863 accepted as Haemulon Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Haemulidae (Family)
     Anarmostus Loew, 1860 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)

Anarnacus
 Anarnacus Tiedemann, 1808 † accepted as Anarnacus Tiedemann, 1808 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Odontoceti incertae sedis (Family)
     Anarnacus Duméril, 1806 accepted as Anarnacus Duméril, 1806 (nomen dubium)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Odontoceti incertae sedis (Family)

Anartia
     Anartia Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Anartia Miers, 1878 accepted as Tabernaemontana Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Anaschisma
     Anaschisma R. Zander in Zander et al., 2021 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)
     Anaschisma Branson, 1905 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Temnospondyli (Order) > Metoposauridae (Family)

Anasicydium
     Anasicydium Trouessart & Neumann, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Vexillariidae (Family)
 Anasicydium Canestrini, 1899 accepted as Anasicydium Trouessart & Neumann, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Vexillariidae (Family)

Anasis
     Anasis Laporte, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Anasis Raffray, 1891 accepted as Asanis Newton & Chandler, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Anasphondylia
     Anasphondylia Tavares, 1922 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Anasphondylia Blanchard, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Anaspis
 Anaspis Müller, 1764 accepted as Anaspis Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scraptiidae (Family)
 Anaspis Thomson, 1893 accepted as Anaspides Thomson, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Anaspidacea (Order) > Anaspidesidae (Family)
     Anaspis Geoffroy, 1762 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scraptiidae (Family)
 Anaspis Rechinger, 1941 accepted as Scutellaria Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Anaspis Robertson, 1941 † accepted as Saarolepis Robertson, 1945 † · Animalia (Kingdom) > Chordata (Phylum) > Cephalaspidomorphi (Class) > Birkeniiformes (Order) > Birkeniidae (Family)

Anasser
 Anasser A.L. Jussieu, 1789 accepted as Geniostoma J.R. Forster & J.G.A. Forster, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Loganiaceae (Family)
     Anasser Absalão & Pimenta, 2003 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)

Anasterias
 Anasterias Studer, 1885 accepted as Lysasterias Fisher, 1908 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Asteriidae (Family)
     Anasterias Perrier, 1875 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Asteriidae (Family)

Anastoma
 Anastoma Burmeister, 1840 accepted as Anostostoma Gray, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Anostostomatidae (Family)
 Anastoma Cristofori & Jan, 1832 accepted as Anostoma Fischer, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)

Anastomus
     Anastomus Minding, 1832 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Anastomus Bonnaterre, 1790 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Ciconiidae (Family)
 Anastomus Paetel, 1875 accepted as Anostoma Fischer, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)

Anastylops
 Anastylops Ameghino, 1897 † accepted as Notostylops Ameghino, 1897 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Notostylopidae (Family)
     Anastylops Ameghino, 1897, nom. nud. † accepted as Notostylops Ameghino, 1897 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Notostylopidae (Family)

Anasyntormon
 Anasyntormon Parent, 1932 accepted as Anasyntormon Dyte, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
     Anasyntormon Dyte, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Anataelia
     Anataelia Bolivar, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Dermaptera (Order) > Pygidicranidae (Family)
 Anataelia Draudt, 1933 accepted as Paranataelia Draudt, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Anataëlia
 Anataëlia Draudt, 1933 accepted as Paranataelia Draudt, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Anataëlia Bolivar, 1899 accepted as Anataelia Bolivar, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Dermaptera (Order) > Pygidicranidae (Family)

Anatherum
 Anatherum Palisot de Beauvois, 1812 accepted as Andropogon Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Anatherum Nábelek, 1929 accepted as Festuca Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Anatibetites
     Anatibetites Mojsisovics, 1897 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)
     Anatibetites Mojsisovics, 1896 † accepted as Anatibetites Mojsisovics, 1897 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)

Anatifopsis
     Anatifopsis Barrande, 1872 † · Animalia (Kingdom) > Echinodermata (Phylum) > Stylophora (Class) > Mitrata (Order) > Kirkocystidae (Family)
     Anatifopsis Barrande in Bigsby, 1868 † accepted as Anatifopsis Barrande in Bigsby, 1868 † (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Stylophora (Class) > Stylophora (awaiting allocation) (Order) > Stylophora (awaiting allocation) (Family)

Anatina
     Anatina Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Mactridae (Family)
 Anatina Lamarck, 1818 accepted as Laternula Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Laternulidae (Family)

Anatinella
     Anatinella Spasski & Spasskaya, 1954 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Hymenolepididae (Family)
     Anatinella Sowerby G. B II., 1833 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Anatinellidae (Family)

Anatiniana
     Anatiniana Bourguignat, 1881 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
     Anatiniana Fagot, 1892 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)

Anatis
 Anatis accepted as Antalis H. Adams & A. Adams, 1854 · Animalia (Kingdom) > Mollusca (Phylum) > Scaphopoda (Class) > Dentaliida (Order) > Dentaliidae (Family)
     Anatis Mulsant, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)

Anatomus
     Anatomus Montfort, 1810 accepted as Anatomus Montfort, 1810 (nomen dubium)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta incertae sedis (Family)
 Anatomus A. Adams, 1862 accepted as Anatoma Woodward, 1859 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Scissurellidae (Family)

Anatonochilus
     Anatonochilus Péringuey, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Anatonochilus Péringuet, 1907 accepted as Anatochilus Péringuey, 1907 (misspelling - incorrect original spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Anatrichus
 Anatrichus LeConte accepted as Anatrichis LeConte, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Anatrichus Loew, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chloropidae (Family)

Anatrum
     Anatrum Reichardt, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Anatrum accepted as Anantrum Overstreet, 1968 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Bothriocephalidea (Order) > Bothriocephalidae (Family)

Anatrypa
     Anatrypa Nalivkin, 1941 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Atrypida (Order) > Atrypidae (Family)
     Anatrypa Hecker (?), 1935 † (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)

Anaua
 Anaua Miquel, 1861 accepted as Drypetes M. Vahl, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Putranjivaceae (Family)
 Anaua Forster, 1970 accepted as Uzakia Koçak & Kemal, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Cycloctenidae (Family)
     Anaua Stål, 1878 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Anaulacus
     Anaulacus Semenov, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Aulacidae (Family)
 Anaulacus Macleay, 1825 accepted as Aephnidius Macleay, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Anaulax
     Anaulax de Roissy, 1805 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Anaulax Murray, 1859 accepted as Metaxenus Motschoulsky, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Anaulax Bernhauer, 1929 accepted as Drusilla Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Anaulus
     Anaulus Pfeiffer, 1855 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Pupinidae (Family)
     Anaulus Ehrenberg, 1844 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Anaulales (Order) > Anaulaceae (Family)

Anaurus
     Anaurus Rafinesque, 1815 accepted as Anaurus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Anaurus Simon, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Anax
 Anax P. Ravenna, 1988 accepted as Clinanthus Herbert, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)
     Anax Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Aeshnidae (Family)

Anaxandra
 Anaxandra Stål, 1876 accepted as Onesia Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)
     Anaxandra Kirby, 1904 accepted as Anaxarcha Stål, 1877 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Hymenopodidae (Family)

Anaxarete
     Anaxarete Gistl, 1848 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Anaxarete Geyer, 2016 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Chengkouiidae (Family)

Ancaeus
 Ancaeus Agassiz, 1846 accepted as Ancaeus Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Gnathiidae (Family)
 Ancaeus Fauvel, 1864 accepted as Clavilispinus Bernhauer, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Ancaeus Fauvel, 1865 accepted as Clavilispinus Bernhauer, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Ancaeus Adams, 1869 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Ancalagon
     Ancalagon Conway Morris, 1977 † · Animalia (Kingdom) > Priapulida (Phylum) > Priapulimorpha (Class) > Priapulimorphida (Order) > Ancalagonidae (Family)
 Ancalagon van Valen, 1978 † accepted as Ankalagon van Valen, 1980 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mesonychia (Order) > Mesonychidae (Family)

Anceus
 Anceus Risso, 1816 accepted as Gnathia Leach, 1814 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Gnathiidae (Family)
 Anceus Roback, 1963 accepted as Axarus Roback, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)

Anceya
     Anceya Bourguignat, 1885 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Paludomidae (Family)
 Anceya Ancey, 1887 accepted as Anceya Ancey, 1887 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Vitrinidae (Family)

Anchialus
 Anchialus Thomson, 1859 accepted as Berosus Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)
 Anchialus Krøyer, 1861 accepted as Anchialina Norman & Scott, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Mysida (Order) > Mysidae (Family)
     Anchialus Gistl, 1834 accepted as Anchialus Gistl, 1834 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Anchieta
     Anchieta Bechyne, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Anchieta Navás, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Rhachiberothidae (Family)

Anchineura
     Anchineura Thomson, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
     Anchineura Carpenter, 1963 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Megasecoptera (Order) > Megasecoptera (awaiting allocation) (Family)

Anchinia
     Anchinia Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
 Anchinia Rathke, 1835 accepted as Doliopsis Vogt, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Thaliacea (Class) > Doliolida (Order) > Doliopsidae (Family)

Anchiolus
     Anchiolus Gistl, 1848 accepted as Ottokelleria d'Andretta & Martínez, 1957 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Anchiolus [misspelling] accepted as Anchialina Norman & Scott, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Mysida (Order) > Mysidae (Family)

Anchiphyllia
     Anchiphyllia Butler, 1893 accepted as Anchiphyllia Warren, 1895 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Anchiphyllia Warren, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Anchista
 Anchista accepted as Anchistia Dana, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Palaemonidae (Family)
     Anchista Nietner, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Anchistrum
 Anchistrum Peach in Geikie, 1900 † accepted as Achistrum Etheridge, 1881 † · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Apodida (Order) > Apodida (awaiting allocation) (Family)
     Anchistrum Ameghino, 1901 † accepted as Pleurostylodon Ameghino, 1897 † (junior subjective synonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Isotemnidae (Family)

Anchodemus
 Anchodemus Motschoulsky, 1864 accepted as Anchomenus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Anchodemus Leconte, 1876 accepted as Listronotus Jekel, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Ancholeus
 Ancholeus Chaudoir, 1876 accepted as Poecilus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Ancholeus Dejean, 1828 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Anchomenus
 Anchomenus Stephens, 1827 accepted as Anchomenus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Anchomenus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Anchonoides
 Anchonoides Brèthes, 1910 accepted as Hypselus Schönherr, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
     Anchonoides Distant, 1916 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Anchonus
     Anchonus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Anchonus Desbrochers, 1904 accepted as Oxygonium Basilewsky, 1951 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Anchorella
 Anchorella Nordmann, 1832 accepted as Anchorella Cuvier, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Lernaeopodidae (Family)
 Anchorella Cuvier, 1830 accepted as Clavella Oken, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Lernaeopodidae (Family)

Anchura
     Anchura Melichar, 1926 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Jassidae (Family)
     Anchura Conrad, 1860 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Aporrhaidae (Family)

Anchusa
 Anchusa J. Hill, 1756 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)
     Anchusa Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Anchylorhynchus
     Anchylorhynchus Schoenherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Anchylorhynchus Dejean, 1835 accepted as Anchylorhynchus Schoenherr, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Anchylorhynchus Schönherr, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Ancilla
 Ancilla Barrande, 1881 † accepted as Ancilla Barrande, 1881 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Modiomorphoida (Order) > Praeostreidae (Family)
     Ancilla Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Ancillariidae (Family)

Ancistrella
     Ancistrella Chejsin, 1930 · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)
     Ancistrella Van Tieghem, 1903 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Ancistrocladaceae (Family)

Ancistria
     Ancistria Erichson, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Passandridae (Family)
 Ancistria Quatrefages, 1866 accepted as Heteromastus Eisig, 1887 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Capitellida (Order) > Capitellidae (Family)

Ancistrina
     Ancistrina Chejsin, 1930 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Ancistrina Gaede in Seitz, 1927 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Ancistris
 Ancistris accepted as Ancistrus Kner, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Loricariidae (Family)
     Ancistris Mabille, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Ancistrocarpus
     Ancistrocarpus D. Oliver, 1865 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Ancistrocarpus Kunth in Humboldt, Bonpland & Kunth, 1817 accepted as Ancistrocarpus Kunth in Humboldt, Bonpland & Kunth, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Phytolaccaceae (Family)

Ancistrocephalus
 Ancistrocephalus Lühe, 1899 accepted as Anchistrocephalus Monticelli, 1890 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Bothriocephalidea (Order) > Triaenophoridae (Family)
 Ancistrocephalus Paine, 1913 accepted as Physconella Paine, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Philopteridae (Family)

Ancistrocerus
 Ancistrocerus Koch in Hahn, 1839 accepted as Metamitobates Roewer, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)
     Ancistrocerus Wesmael, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)

Ancistrodes
 Ancistrodes Turner, 1946 accepted as Ancistromorpha Common, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
     Ancistrodes Hampe, 1867 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Meteoriaceae (Family)
 Ancistrodes Kéler, 1939 accepted as Coloceras Taschenberg, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Philopteridae (Family)

Ancistrodesmus
 Ancistrodesmus Naudin, 1850 accepted as Microlepis (A.P. de Candolle) Miquel, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
 Ancistrodesmus Agassiz, 1846 accepted as Ankistrodesmus Corda, 1838 · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Oocystaceae (Family)

Ancistrodon
 Ancistrodon Roemer, 1852 † accepted as Grypodon Hay, 1899 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pycnodontiformes (Order) > Pycnodontiformes (awaiting allocation) (Family)
 Ancistrodon Wagler, 1830 accepted as Agkistrodon de Beauvois, 1799 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Viperidae (Family)

Ancistrophora
     Ancistrophora A. Gray, 1859 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Ancistrophora Schiner, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Ancistrophyllum
     Ancistrophyllum Göppert, 1841 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Lycopodiopsida (awaiting allocation) (Order) > Lycopodiopsida (awaiting allocation) (Family)
 Ancistrophyllum (G. Mann & H. Wendland) H. Wendland in Kerchove, 1878 accepted as Laccosperma (G. Mann & H. Wendland) Drude, 1877 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Ancistropus
     Ancistropus Stimpson, 1855 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Echiurida (Order) > Echiuridae (Family)
     Ancistropus Verhoeff, 1943 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)

Ancistrorhynchus
     Ancistrorhynchus L'Hardy, 1963 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Gnathorhynchidae (Family)
     Ancistrorhynchus Finet, 1907 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Ancistrospora
 Ancistrospora G. Thor, 1991 accepted as Ancistrosporella G. Thor, 1995 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Roccellaceae (Family)
     Ancistrospora C.A. Menendez & C.L. Azcuy, 1972 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Ancistrotus
 Ancistrotus Koch in Hahn, 1839 accepted as Metamitobates Roewer, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)
     Ancistrotus Audinet-Serville, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Ancistrum
 Ancistrum J.R. Forster & J.G.A. Forster, 1775 accepted as Acaena Mutis ex Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
     Ancistrum Maupas, 1883 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Ancistridae (Family)

Anconia
     Anconia Mabille, 1886 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Anconia Olsson, 1931 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Anconia Scudder, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Ancora
     Ancora Sidaravichiene, 1975 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Primitiidae (Family)
     Ancora Labbé, 1899 · Chromista (Kingdom) > Miozoa (Phylum) > (Class) > Eugregarinida (Order) > Ancoridae (Family)

Ancorasporella
     Ancorasporella J. Mena Portales, A. Mercado Sierra & G. Heredia, 2017 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Ancorasporella J. Mena Portales, A. Mercado Sierra & G. Heredia, 1998 accepted as Ancorasporella J. Mena Portales, A. Mercado Sierra & G. Heredia, 2017 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Ancorella
     Ancorella Lendenfeld, 1907 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Pachastrellidae (Family)
     Ancorella Nordmann, 1832 accepted as Anchorella Cuvier, 1830 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Lernaeopodidae (Family)

Ancorina
 Ancorina accepted as Ancora Labbé, 1899 · Chromista (Kingdom) > Miozoa (Phylum) > (Class) > Eugregarinida (Order) > Ancoridae (Family)
     Ancorina Schmidt, 1862 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)

Ancudia
     Ancudia Philippi, 1902 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Ancudia Shear, 1988 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Eudigonidae (Family)

Ancyclostoma
 Ancyclostoma accepted as Ancylostoma Dubini, 1843 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Ancylostomatidae (Family)
     Ancyclostoma Scudder, 1882 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Ancylis
     Ancylis Hübner, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Ancylis Diakonoff, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Ancylistes
     Ancylistes Pfitzer, 1872 · Fungi (Kingdom) > Entomophthoromycota (Phylum) > Entomophthoromycetes (Class) > Entomophthorales (Order) > Ancylistaceae (Family)
     Ancylistes Chevrolat, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Ancyllus
     Ancyllus Haldeman, 1842 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Ancyllus Gray, 1821 accepted as Ancylus O. F. Müller, 1773 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)

Ancylobrentus
     Ancylobrentus Damoiseau, 1965 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Ancylobrentus Kleine, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Ancylocera
     Ancylocera Audinet-Serville, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Ancylocera Mik, 1866 accepted as Agculocera Macquart, 1855 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Ancyloceras
     Ancyloceras d'Orbigny, 1842 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ancyloceratidae (Family)
     Ancyloceras Agassiz, 1846 accepted as Ancylocera Audinet-Serville, 1834 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Ancylocheira
 Ancylocheira Chevrolat, 1838 accepted as Ancylocheira Chevrolat, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Ancylocheira Eschscholtz, 1829 accepted as Buprestis Linnaeus, 1758 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Ancylodon
     Ancylodon Illiger, 1811 accepted as Ancylodon Illiger, 1811 (nomen dubium)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Odontoceti incertae sedis (Family)
 Ancylodon Cuvier & Cloquet, 1816 accepted as Macrodon Schinz in Cuvier, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sciaenidae (Family)
 Ancylodon Oken, 1817 accepted as Macrodon Schinz in Cuvier, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sciaenidae (Family)

Ancylognathus
     Ancylognathus Lund, 1831 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Ancylognathus Dejean, 1836 accepted as Calognathus Guérin, 1837 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Ancyloides
     Ancyloides Kuznetsov, 1964 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Ancyloides Diakonoff, 1982 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Ancylonotus
 Ancylonotus Laporte de Castelnau, 1840 accepted as Ancylonotus Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Ancylonotus Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Ancylopsocus
     Ancylopsocus Tillyard, 1926 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Psocoptera (awaiting allocation) (Family)
     Ancylopsocus Li, 1997 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Psocoptera (awaiting allocation) (Family)

Ancylopus
     Ancylopus Carman, 1928 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Ancylopus Costa, 1854 accepted as Ancylopus Chevrolat in Dejean, 1836 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)
     Ancylopus Flor, 1860 accepted as Gastrodes Westwood, 1840 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Rhyparochromidae (Family)
 Ancylopus Agassiz, 1846 accepted as Ancylopus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)
     Ancylopus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)

Ancylorhynchus
     Ancylorhynchus Wanner, 1902 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Ancylorhynchus Agassiz, 1846 accepted as Anchylorhynchus Schoenherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Ancylorhynchus Berthold in Latreille, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Ancylorhynchus Desmarest, 1840 accepted as Anchylorhynchus Schoenherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Ancylorrhynchus
 Ancylorrhynchus accepted as Ancylorhynchus Berthold in Latreille, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Ancylorrhynchus Schönherr, 1833 accepted as Anchylorhynchus Schönherr, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Ancylorrhynchus Gemminger & Harold, 1871 accepted as Anchylorhynchus Schoenherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Ancyloscelis
     Ancyloscelis Berthold in Latreille, 1827 accepted as Ancyloscelis Latreille in Cuvier, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
 Ancyloscelis Ogloblin, 1930 accepted as Ivalia Jacoby, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Ancyloscelis Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)

Ancylotela
 Ancylotela sensu Cobos, 1955 accepted as Tyndaris Thomson, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Ancylotela Waterhouse, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Ancylotropis
     Ancylotropis Jekel, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
     Ancylotropis B. Eriksen, 1993 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Polygalaceae (Family)

Ancylus
     Ancylus Haliday, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Ancylus O. F. Müller, 1773 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)

Ancyra
     Ancyra White, 1845 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Ancyra Cameron, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Ancyracanthus
     Ancyracanthus Diesing, 1839 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Gnathostomatidae (Family)
     Ancyracanthus Diesing, 1838 accepted as Ancyracanthus Diesing, 1839 (nomen nudum)· Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Gnathostomatidae (Family)
 Ancyracanthus Kamaltynov, 2001 accepted as Acanthogammarus Stebbing, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Acanthogammaridae (Family)

Ancyrophorus
 Ancyrophorus Kraatz, 1858 accepted as Ochthephilus Mulsant & Rey, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Ancyrophorus Raunkiaer, 1888 accepted as Enerthenema Bowman, 1830 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxomycetes (Class) > Stemonitidales (Order) > Amaurochaetaceae (Family)

Ancystrocerus
     Ancystrocerus Raffray, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Ancystrocerus Dalla Torre, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)

Andalusiana
     Andalusiana Sdzuy, 1961 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Redlichiida (Order) > Olenellidae (Family)
     Andalusiana Lotze, 1958 † accepted as Andalusiana Lotze, 1958 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Andania
 Andania Boeck, 1871 accepted as Andaniexis Stebbing, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Stegocephalidae (Family)
     Andania Walker, 1860 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Andara
 Andara accepted as Anadara Gray, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)
     Andara Capronnier, 1874 accepted as Andara Capronnier, 1874 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Andersenia
     Andersenia Neagu, 1968 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Textulariida (Order) > Eggerellidae (Family)
     Andersenia R. Wetherbee & R.F. Waller in Wetherbee, Gornik, Grant & Waller, 2015 · Chromista (Kingdom) > Ochrophyta (Phylum) > Pelagophyceae (Class) > Sarcinochrysidales (Order) > Sarcinochrysidaceae (Family)

Andersonia
     Andersonia R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
 Andersonia C.L. von Willdenow ex J.K. Roemer & J.A. Schultes, 1819 accepted as Gaertnera Lamarck, 1792 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Andersonia Boulenger, 1900 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Amphiliidae (Family)
 Andersonia Roxburgh, 1832 accepted as Aglaia Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Meliaceae (Family)
 Andersonia Malloch, 1928 accepted as Andersonosia van Emden, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Andersonia Strickland, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
     Andersonia F.E. Arce & A.I. Lutz, 2014 † accepted as Acevedoa F.E. Arce & A.I. Lutz, 2014 † (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Matatiellales (Order) > Matatiellaceae (Family)

Andersoniella
 Andersoniella C. Davis & A. Amorim, 2020 accepted as Andersoniodoxa C. Davis & A. Amorim, 2020 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)
 Andersoniella K.J.F. Schmitz in Engler & Prantl, 1897 accepted as Leptocladia J.G. Agardh, 1892 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Dumontiaceae (Family)
     Andersoniella Lamsdell, 2020 † · Animalia (Kingdom) > Arthropoda (Phylum) > Xiphosura (Class) > Xiphosurida (Order) > Belinuridae (Family)

Anderssonia
 Anderssonia Sun, 1925 † accepted as Anderssonella Kobayashi, 1936 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphida (awaiting allocation) (Family)
     Anderssonia Kluge, 1914 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
 Anderssonia Strebel, 1908 accepted as Newnesia E. A. Smith, 1902 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Newnesiidae (Family)

Andesia
     Andesia Hampson, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Andesia Hauman, 1915 accepted as Oxychloe R.A. Philippi, 1860 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Juncaceae (Family)

Andex
     Andex Sharp, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)
 Andex Burr, 1911 accepted as Spongovostox Burr, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Dermaptera (Order) > Spongiphoridae (Family)

Andibothriurus
 Andibothriurus Bücherl, 1964 accepted as Bothriurus Peters, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Bothriuridae (Family)
 Andibothriurus Maury, 1975 accepted as Bothriurus Peters, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Bothriuridae (Family)

Andina
     Andina Röber in Seitz, 1909 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Andina J.A. Jiménez & M.J. Cano, 2012 accepted as Gertrudiella V.F. Brotherus in Engler & Prantl, 1925 (junior subjective synonym)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)

Andinia
     Andinia Polinski, 1922 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
     Andinia (C.A. Luer) C.A. Luer, 2000 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Andonia
     Andonia Harris & Burrows, 1891 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Turridae (Family)
 Andonia Cossmann, 1891 † accepted as Pseudoandonia Moroni & Ruggieri, 1981 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)

Andraea
 Andraea accepted as Andreaea J. Hedwig, 1801 · Plantae (Kingdom) > Bryophyta (Phylum) > Andreaeopsida (Class) > Andreaeales (Order) > Andreaeaceae (Family)
 Andraea Hartmann in Pfeiffer, 1848 accepted as Clausilia Draparnaud, 1805 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)

Andrea
     Andrea Mishchenko in Gorochov, Mistshenko & Podgornaja, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Andrea Mez in A.C. de Candolle, 1896 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)

Andreaea
     Andreaea J. Hedwig, 1801 · Plantae (Kingdom) > Bryophyta (Phylum) > Andreaeopsida (Class) > Andreaeales (Order) > Andreaeaceae (Family)
 Andreaea B.T. Palm & S.C.J. Jochems, 1923 accepted as Andreaeana B.T. Palm & S.C.J. Jochems, 1924 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Andreaea Schrammen, 1902 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinosa (Order) > Hexactinosa (awaiting allocation) (Family)

Andresia
     Andresia Prenant, 1924 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Polynoidae (Family)
 Andresia H. Sleumer, 1967 accepted as Cheilotheca J.D. Hooker in Bentham & J.D. Hooker, 1876 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
     Andresia Stephenson, 1921 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Andresiidae (Family)
 Andresia Hinz-Schallreuter, 1993 † accepted as · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda incertae sedis (Family)

Andreus
     Andreus Ashmead, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Andreus Vosmaer in Bronn, 1885 accepted as Adreus Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Axinellida (Order) > Hemiasterellidae (Family)

Andreusia
 Andreusia Hampson, 1913 accepted as Andreusia Hampson, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Andreusia Dunal ex C.F. Meisner, 1839 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericales (awaiting allocation) (Family)
     Andreusia Ventenat, 1805 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Andrewesia
     Andrewesia Liebke, 1938 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Andrewesia Csiki, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Andrewesius
     Andrewesius Andrewes, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Andrewesius Jedlicka, 1932 accepted as Andrewesius Andrewes, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Andrewsia
 Andrewsia K.P.J. Sprengel, 1817 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
     Andrewsia Grote, 1882 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Andrewsiella
     Andrewsiella T. Jurkschat, 1997 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Fragilariales (Order) > Fragilariaceae (Family)
     Andrewsiella Izzard, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Acanaloniidae (Family)

Andriana
     Andriana B.-E. van Wyk, 1999 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Andriana Rehn, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)

Andrina
     Andrina Robineau-Desvoidy, 1863 accepted as Periscepsia Gistl, 1848 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Andrina Lioy, 1864 accepted as Andrina Robineau-Desvoidy, 1863 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Andringitra
     Andringitra C. Skema, 2012 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Andringitra Villiers, 1971 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)

Androctenus
     Androctenus Esquivel de Verde & Machado-Allison, 1969 accepted as Androctonus Ehrenberg in Hemprich & Ehrenberg, 1828 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Buthidae (Family)
     Androctenus (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Polyctenidae (Family)

Androgeus
     Androgeus Berendt, 1845 accepted as Androgeus Berendt, 1845 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Androgeus Stål, 1865 accepted as Diniella Bergoth, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Rhyparochromidae (Family)
     Androgeus Leonhardt & Bronn, 1845 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Androgyne
     Androgyne Walsingham in Swinhoe, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Androgyne W. Griffith, 1851 accepted as Panisea (Lindley) Lindley, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Androgynella
     Androgynella Cockerell, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Androgynella Guţu, 2006 accepted as Apseudes Leach, 1814 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Tanaidacea (Order) > Apseudidae (Family)

Andromeda
 Andromeda Agassiz, 1844 accepted as Andromeda Agassiz, 1844 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Andromeda Gistl, 1848 accepted as Andromeda Gistl, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Andromeda Baumgartner in Baumgartner, de Wever & Kocher, 1980 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Amphipyndacidae (Family)
     Andromeda Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
 Andromeda Gistl, 1834 accepted as Acmaeodera Eschscholtz, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Andropodum
 Andropodum Scudder, 1875 accepted as Appias Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)
     Andropodum Hübner, 1822 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Andropus
 Andropus Bonaparte, 1850 accepted as Andropadus Swainson in Richardson, 1832 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Pycnonotidae (Family)
 Andropus A. Brand, 1912 accepted as Nama Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Androscydmaenus
 Androscydmaenus Franz, 1980 accepted as Scydmaenus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Androscydmaenus Franz, 1992 accepted as Scydmaenus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Androstachys
 Androstachys F.C. Grand'Eury, 1877 † accepted as Dolerotheca T.G. Halle, 1933 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Pachytestales (Order) > Pachytestales (awaiting allocation) (Family)
     Androstachys Prain, 1908 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Picrodendraceae (Family)

Androya
     Androya Spaeth, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Androya H. Perrier de la Bâthie, 1952 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Andrusovia
     Andrusovia Dovgal, 2002 (uncertain)· Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > (Order) > Suctoria (awaiting allocation) (Family)
     Andrusovia Westerlund, 1902 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)

Andrussovia
     Andrussovia Derzhavin, 1927 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Pontogammaridae (Family)
 Andrussovia Dybowski & Grochmalicki, 1917 accepted as Andrussovia Dybowski & Grochmalicki, 1917 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)

Anegleis
     Anegleis Casey, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)
     Anegleis Iablokoff-Khnzorian, 1982 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)

Anelasma
 Anelasma Sørensen, 1873 accepted as Anelasmocephalus Simon, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Trogulidae (Family)
 Anelasma Ivanov, 1925 † accepted as Brachythyrina Fredericks, 1929 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Spiriferidae (Family)
     Anelasma Darwin, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Pedunculata (Order) > Anelasmatidae (Family)
     Anelasma Cossmann, 1889 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Anelasma Miers, 1851 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Menispermaceae (Family)

Anelastes
     Anelastes Kirby, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
 Anelastes Agassiz, 1846 accepted as Analestesa Leach, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Anellaria
 Anellaria P.A. Karsten, 1879 accepted as Panaeolus (E.M. Fries) Quélet, 1872 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Agaricales incertae sedis (Family)
     Anellaria Bakkendorf, 1934 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)

Anelpistus
     Anelpistus Brauns, 1897 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Anelpistus Horn, 1870 accepted as Scotodes Eschscholtz, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Stenotrachelidae (Family)

Anelytra
     Anelytra Redtenbacher, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Anelytra Rafinesque, 1815 accepted as Anelytra Redtenbacher, 1891 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Anema
     Anema Nylander ex K.B.J. Forssell, 1885 · Fungi (Kingdom) > Ascomycota (Phylum) > Lichinomycetes (Class) > Lichinales (Order) > Lichinaceae (Family)
 Anema Günther, 1860 accepted as Ichthyscopus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Uranoscopidae (Family)

Anematichthys
 Anematichthys Bleeker, 1859 accepted as Cyclocheilichthys Bleeker, 1859 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
     Anematichthys Bleeker, 1859, nom. nud. accepted as Cyclocheilichthys Bleeker, 1859 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)

Anemeca
     Anemeca Kirby, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Anemeca Shcherbakov in Shcherbakov, Lukashevich & Blagoderov, 1995 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Hennigmatidae (Family)

Anemerus
 Anemerus Agassiz, 1846 accepted as Cenchroma Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Anemerus Gemminger & Harold, 1871 accepted as Cenchroma Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Anemia
     Anemia O. Swartz, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Schizaeales (Order) > Anemiaceae (Family)
     Anemia Laporte, 1840 accepted as Cheirodes Gené, 1839 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Anemia Nuttall, 1838 accepted as Anemopsis W.J. Hooker & Arnott, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Piperales (Order) > Saururaceae (Family)
     Anemia Verrall in Scudder, 1882 accepted as Anemya Robineau-Desvoidy, 1863 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Anemia Reitter, 1904 accepted as Anemia Laporte, 1840 (misapplication)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Anemiadena
     Anemiadena Ardoin, 1971 accepted as Anemiadena Bouchard & Bousquet, 2021 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Anemiadena Bouchard & Bousquet, 2021 accepted as Cheirodes Gené, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Anemone
 Anemone accepted as Anemonia Risso, 1826 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actiniidae (Family)
     Anemone Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)

Aneorhachis
     Aneorhachis Kleine, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Aneorhachis Kleine, 1922 accepted as Aneorhachis Kleine, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Anepischetos
 Anepischetos Wells & Wellington, 1983 accepted as Nannoscincus Günther, 1872 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
     Anepischetos Smith, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Anepsia
     Anepsia Reichenbach, 1850 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Anepsia Koch, 1871 accepted as Anepsion Strand, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
 Anepsia Iablokoff-Khnzorian, 1963 accepted as Xanthomelina Iablokoff-Khnzorian, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Anepsia Gistl, 1848 accepted as Wahlbergia Zetterstedt, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Anepsia Brunner von Wattenwyl, 1878 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Anepsius
 Anepsius Puton, 1869 accepted as Anepsiocoris Puton, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Rhyparochromidae (Family)
     Anepsius Bates, 1862 accepted as Trigonopeplus White, 1855 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Anepsius Candèze, 1859 accepted as Achrestus Candèze in Harold, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
     Anepsius Leconte, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Anepsius Loew, 1857 accepted as Anepsiomyia Bezzi, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Anethas
     Anethas Jacobson, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Anethas Zimmerman, 1994 accepted as Abethas Zimmerman in Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Anetia
     Anetia Endlicher, 1839 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
     Anetia Robineau-Desvoidy, 1863 accepted as Anetia Robineau-Desvoidy, 1863 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Anetia Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Aneura
     Aneura (uncertain)· Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
     Aneura Marshall, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Mycetophilidae (Family)
     Aneura Dumortier, 1822 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Metzgeriales (Order) > Aneuraceae (Family)

Aneuria
     Aneuria Malloch, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Heleomyzidae (Family)
 Aneuria (J.G. Agardh) Weber-van Bosse, 1911 accepted as Lenormandiopsis Papenfuss, 1967 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)

Aneurina
     Aneurina Lioy, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Aneurina Hebard, 1935 accepted as Aneurinita Hebard, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Ectobiidae (Family)

Angara
 Angara Rochebrune, 1883 accepted as Angaria Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Turbinidae (Family)
 Angara Budde-Lund, 1908 accepted as Agabiformius Verhoeff, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Porcellionidae (Family)
     Angara Brunner, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Angaridella
     Angaridella Benediktov, 1998 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Angaridella Kolesnikov, 1974 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Angariella
 Angariella V.D. Prynada, 1962 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Gymnospermae (awaiting allocation) (Class) > Gymnospermae (awaiting allocation) (Order) > Gymnospermae (awaiting allocation) (Family)
     Angariella V.A. Chachlov, 1939 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)

Angarina
     Angarina I.A. Kulkova in Kulkova & Lauchin, 1975 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
 Angarina Bayle, 1878 accepted as Angaria Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Angariidae (Family)

Angasia
 Angasia Spence Bate, 1863 accepted as Tozeuma Stimpson, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Hippolytidae (Family)
 Angasia Carpenter in Dall, 1882 accepted as Craspedochiton Shuttleworth, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Acanthochitonida (Order) > Acanthochitonidae (Family)

Angela
 Angela González-Sponga, 1987 accepted as Leptostygnus Mello-Leitão, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Agoristenidae (Family)
     Angela Audinet-Serville, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Angelidae (Family)
 Angela Lesson, 1843 accepted as Athorybia Eschscholtz, 1829 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Agalmatidae (Family)

Angelandra
 Angelandra Endlicher, 1850 accepted as Croton Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Angelandra Endlicher, 1843 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Angelia
     Angelia Lower, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Angelia Berlese, 1885 accepted as Lohmannia Michael, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Lohmanniidae (Family)

Angelica
     Angelica Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Angelica Distant, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Angelica Marsh, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Angelina
     Angelina Altiner, 1988 † (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Involutinida (Order) > Pseudovidalinidae (Family)
     Angelina E.M. Fries, 1849 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Dermateaceae (Family)
     Angelina Salter in Murchison, 1859 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Olenidae (Family)

Angelopsis
     Angelopsis Lens & van Reimsdijk, 1908 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Rhodaliidae (Family)
     Angelopsis Fewkes, 1886 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Rhodaliidae (Family)

Angelus
     Angelus Hering in Seitz, 1933 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Limacodidae (Family)
 Angelus Aldrich, 1911 † accepted as Tellina Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Tellinidae (Family)

Angiopteris
 Angiopteris Adanson, 1763 accepted as Onoclea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Onocleaceae (Family)
     Angiopteris G.F. Hoffmann, 1796 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Marattiales (Order) > Marattiaceae (Family)

Angiostoma
     Angiostoma Dujardin, 1844 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Angiostomatidae (Family)
 Angiostoma Agassiz, 1846 accepted as Angiostoma Agassiz, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Angiostrongylus
     Angiostrongylus Drozdz, 1971 (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)
     Angiostrongylus Kamensky, 1905 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Metastrongylidae (Family)

Angiotheca
 Angiotheca H. Sydow, 1939 accepted as Dictyonella von Höhnel, 1909 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetidae incertae sedis (Order) > Saccardiaceae (Family)
     Angiotheca W.P. Schimper in W.P. Schimper & Schenk, 1879 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Marattiales (Order) > Marattiaceae (Family)

Angistrisoma
     Angistrisoma Soares & Soares, 1948 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Cranaidae (Family)
     Angistrisoma Roewer, 1932 accepted as Angistrisoma Soares & Soares, 1948 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Cranaidae (Family)

Angitia
     Angitia Holmgren, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Angitia Walker, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Angolaia
     Angolaia Linnavuori & Al-Ne'amy, 1983 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Angolaia Antunes & Cappetta, 2002 † accepted as Angolabatis Antunes & Cappetta, 2006 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Hypsobatidae (Family)

Angolia
     Angolia Cerda Gonzalez, 1980 accepted as Huequenia Cerda, 1986 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Angolia Obenberger, 1920 accepted as Alissoderus Deyrolle, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Angolia Malloch, 1934 accepted as Angolina Pont, 1972 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)

Angorchis
 Angorchis L.M.A. du P. Thouars, 1809 accepted as Angraecum Bory de St.-Vincent, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Angorchis C.G.D. Nees von Esenbeck, 1826 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Angra
 Angra Travassos, 1929 accepted as Rondonema Artigas, 1926 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Carnoyidae (Family)
     Angra Schumacher, 1913 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Angraecopsis
 Angraecopsis J.M.H. Shaw, 2013 accepted as Angraeconopsis J.M.H. Shaw, 2013 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Angraecopsis Kraenzlin, 1900 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Anguilla
     Anguilla Schrank, 1798 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Anguillidae (Family)
 Anguilla Davaine, 1857 † accepted as Anguillula Müller, 1786 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Tripylida (Order) > Tripylidae (Family)

Anguillaria
 Anguillaria R. Brown, 1810 accepted as Wurmbea Thunberg, 1781 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Colchicaceae (Family)
 Anguillaria J. Gaertner, 1788 accepted as Anguillaria J. Gaertner, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)

Anguillina
 Anguillina Cossmann, 1912 † accepted as Lemintina Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)
     Anguillina Hammerschmidt, 1839 (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)

Anguilloides
     Anguilloides Cadrobbi, 1962 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Anguilliformes (awaiting allocation) (Family)
 Anguilloides accepted as Anguilluloides Rühm, 1956 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Panagrolaimidae (Family)

Anguillula
 Anguillula Chaussat, 1850 accepted as Lankesterella Labbé, 1899 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Eucoccidiida (Order) > Lankesterellidae (Family)
 Anguillula Hemprich & Ehrenberg, 1828 accepted as Anguillula Müller, 1786 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Panagrolaimidae (Family)
     Anguillula Müller, 1786 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Tripylida (Order) > Tripylidae (Family)
     Anguillula Ehrenberg, 1831 (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)

Anguina
 Anguina P. Miller, 1755 accepted as Trichosanthes Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Cucurbitaceae (Family)
     Anguina Scopoli, 1777 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Anguinidae (Family)

Anguinaria
     Anguinaria Lamarck, 1816 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Aeteidae (Family)
 Anguinaria Schumacher, 1817 accepted as Tenagodus Guettard, 1770 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Siliquariidae (Family)

Anguinella
     Anguinella van Beneden, 1845 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Ctenostomatida (Order) > Nolellidae (Family)
 Anguinella Conrad, 1845 † accepted as Lemintina Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)

Angularia
     Angularia J. Portilla, 2016 accepted as Maxiluloa U.B. Deshmukh & J.M.H. Shaw, 2021 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Angularia S.R. Samoilovitch ex G. Norris & W.A.S. Sarjeant, 1965 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)
     Angularia Wöhrmann & Koken, 1892 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Angularia Busk, 1881 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
 Angularia Clerc, 1906 accepted as Angularella Strand, 1928 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Progynotaeniidae (Family)

Angulorbis
     Angulorbis Wenz, 1941 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Angulorbis Yen, 1944 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Anguria
 Anguria P. Miller, 1754 accepted as Citrullus H.A. Schrader in Ecklon & Zeyher, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Cucurbitaceae (Family)
 Anguria N.J. Jacquin, 1760 accepted as Psiguria Arnott, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Cucurbitaceae (Family)

Angustella
     Angustella Waagen, 1907 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Angustella Li, 1986 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Evacanthidae (Family)
     Angustella Steklov & Tsytovich, 1967 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Anhammus
     Anhammus Dejean, 1835 accepted as Anhammus Thomson, 1860 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anhammus Thomson, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anhanga
     Anhanga Galileo & Martins, 2003 accepted as Monnetyra Galileo & Martins, 2006 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anhanga Distant, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Anhuisaurus
 Anhuisaurus Chen in Wang Guixiang, 1984 † accepted as Chensaurus Mazin, Suteethora, Buffetaut, Jaeger & Helmcke-Ingavat, 1991 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Ichthyosauria (Order) > Ichthyosauria (awaiting allocation) (Family)
     Anhuisaurus Hou, 1974 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Ichthyosauria (Order) > Ichthyosauria (awaiting allocation) (Family)

Ania
 Ania J. Lindley, 1831 accepted as Tainia Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Ania Stephens, 1831 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Ania Distant, 1884 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Ania Stephens in Shaw, 1824 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Aniara
     Aniara Dejean, 1834 accepted as Aniara Melsheimer, 1853 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Aniara Brunner von Wattenwyl, 1878 accepted as Aniarella Bolivar, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Aniara Lacordaire, 1859 accepted as Aniara Melsheimer, 1853 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Aniara Hope, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)
     Aniara Melsheimer, 1853 accepted as Holaniara Fairmaire, 1871 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Aniarella
     Aniarella Enderlein, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Aniarella Bolivar, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Aniaria
     Aniaria Horn, 1893 accepted as Aniara Hope, 1838 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)
     Aniaria Gistel, 1850 accepted as Aniaria Horn, 1893 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)

Anicia
 Anicia Salvin, 1869 accepted as Anetia Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Anicia Robineau-Desvoidy, 1863 accepted as Metopia Meigen, 1803 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Anicula
     Anicula Omelko & Omelko, 2021 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Anicula Ryvkin, 1985 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Anidanthus
     Anidanthus Whitehouse, 1928 † accepted as Anidanthus Hill, 1950 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Linoproductidae (Family)
     Anidanthus Hill, 1950 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Linoproductidae (Family)

Anidopsis
 Anidopsis Kessel, 1935 accepted as Anidopsis Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Anidopsis Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Anila
     Anila Distant, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Anila Ludwig ex O. Kuntze, 1891 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Anilara
     Anilara Saunders, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Anilara Thomson, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Anillosthetus
 Anillosthetus Bertolini, 1872 accepted as Octavius Fauvel, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Anillosthetus Mulsant & Rey, 1877 accepted as Octavius Fauvel, 1873 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Anillosthetus Mulsant & Rey, 1876 accepted as Octavius Fauvel, 1873 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Anisacantha
 Anisacantha R. Brown, 1810 accepted as Bassia Allioni, 1766 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
     Anisacantha Redtenbacher in Brunner & Redtenbacher, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Anisacanthidae (Family)

Anisacanthus
 Anisacanthus K.B. Presl, 1845 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
     Anisacanthus C.G.D. Nees, 1842 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Anisacodon
 Anisacodon Marsh, 1875 † accepted as Megacerops Leidy, 1870 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Brontotheriidae (Family)
     Anisacodon Marsh, 1872 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Leptictida (Order) > Leptictidae (Family)

Anisakis
     Anisakis Mozgovoi, 1951 (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)
     Anisakis Dujardin, 1844 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Anisakidae (Family)

Anisanthera
 Anisanthera W. Griffith, 1854 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
 Anisanthera Rafinesque, 1837 [2] accepted as Caccinia G. Savi, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)
     Anisanthera Rafinesque, 1837 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Anisanthus
 Anisanthus Sweet ex Klatt, 1864 accepted as Gladiolus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
     Anisanthus J.A. Schultes in J.J. Roemer & J.A. Schultes, 1819 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dipsacales (Order) > Caprifoliaceae (Family)

Anisarthron
     Anisarthron Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Anisarthron Redtenbacher, 1845 accepted as Anisarthron Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anisitsia
 Anisitsia Eigenmann & Kennedy in Eigenmann, 1903 accepted as Hemiodus Müller, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Hemiodontidae (Family)
     Anisitsia Viereck, 1912 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Anisocalyx
 Anisocalyx H.M.L. Bolus, 1958 accepted as Jacobsenia H.M.L. Bolus & Schwantes in H.M.L. Bolus, 1954 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
 Anisocalyx Hance in Walpers, 1852 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
     Anisocalyx V. Donati, 1758 · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Anisocalyx Costa, 1842 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Anisocardia
     Anisocardia Cossmann, 1886 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Anisocardia Munier-Chalmas, 1863 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Arcticidae (Family)

Anisocera
 Anisocera Stephens, 1835 accepted as Kateretes Herbst in Jablonsky, 1793 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nitidulidae (Family)
     Anisocera Dejean, 1833 accepted as Anisocera Dejean, 1833 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > (Family)

Anisoceras
     Anisoceras Hope, 1840 accepted as Nicolebertia Burckhardt & Slipinski, 1995 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cucujidae (Family)
 Anisoceras Grube, 1856 accepted as Dorvillea Parfitt, 1866 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Eunicida (Order) > Dorvilleidae (Family)
     Anisoceras Pictet, 1854 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Anisoceratidae (Family)

Anisocerus
 Anisocerus Gemminger & Harold, 1868 accepted as Nicolebertia Burckhardt & Slipinski, 1995 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cucujidae (Family)
     Anisocerus Lacordaire, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anisocerus Audinet-Serville, 1836 accepted as Anisocerus Lacordaire, 1830 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anisocerus Westwood, 1830 accepted as Nicolebertia Burckhardt & Slipinski, 1995 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Passandridae (Family)
     Anisocerus Faldermann, 1837 accepted as Ceratanisus Gemminger in Gemminger & Harold, 1870 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Anisochaeta
     Anisochaeta A.P. de Candolle, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Anisochaeta Beddard, 1890 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Megascolecidae (Family)

Anisochalepus
     Anisochalepus Uhmann, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Anisochalepus Spaeth, 1937 accepted as Anisochalepus Uhmann, 1940 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Anisocheirus
 Anisocheirus Whitley, 1931 accepted as Dendrochirus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Scorpaenidae (Family)
     Anisocheirus Guérin-Méneville, 1844 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Anisocheirus Westwood, 1832 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Tanaidacea (Order) > Tanaididae (Family)

Anisochirus
 Anisochirus Jeannel, 1946 accepted as Harpalus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Anisochirus Agassiz, 1846 accepted as Anisocheirus Guérin-Méneville, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Anisochirus Günther, 1862 accepted as Brachirus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Soleidae (Family)

Anisocycla
     Anisocycla Baillon in Grandidier, 1887 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Menispermaceae (Family)
 Anisocycla Cossmann, 1888 accepted as Belonidium Cossmann, 1892 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)
 Anisocycla Monterosato, 1880 accepted as Eulimella Forbes & MacAndrew, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)

Anisodera
 Anisodera Baly, 1858 accepted as Lasiochila Weise, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Anisodera Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Anisodera Duponchel in d'Orbigny accepted as Anisodera Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Anisodiscus
     Anisodiscus Grunow ex Pantocsek, 1886 · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)
     Anisodiscus Gaud & Mouchet, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Proctophyllodidae (Family)

Anisodon
     Anisodon Rosen, 1905 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
     Anisodon Lartet in de Blainville, 1849 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Chalicotheriidae (Family)
     Anisodon W.P. Schimper in Bruch, W.P. Schimper & Gümbel, 1852 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Fabroniaceae (Family)
     Anisodon Pomel, 1848 † accepted as Anisodon Lartet in de Blainville, 1849 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Chalicotheriidae (Family)

Anisogamia
     Anisogamia Saussure, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Corydiidae (Family)
 Anisogamia Warren, 1896 accepted as Anisozyga Prout, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Anisogaster
     Anisogaster Blakemore, 2000 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Megascolecidae (Family)
 Anisogaster Looss, 1901 accepted as Anisocladium Looss, 1902 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Opisthorchiida (Order) > Cryptogonimidae (Family)
     Anisogaster Deyrolle in Maillard, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anisognathus
 Anisognathus Lacordaire, 1866 accepted as Bolbocranius Kolbe, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Anisognathus Reichenbach, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)

Anisogonia
     Anisogonia Butler, 1893 accepted as Anisogonia Butler, 1893 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Anisogonia Warren, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Anisolepis
     Anisolepis Boulenger, 1885 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Leiosauridae (Family)
     Anisolepis Steetz in J.G.C. Lehmann, 1845 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Anisolobus
 Anisolobus Alph. de Candolle, 1844 accepted as Odontadenia Bentham, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
     Anisolobus Vincent, 1924 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Gregarinidae (Family)

Anisomera
 Anisomera Brullé, 1834 accepted as Anisomeria Brinck, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)
     Anisomera Meigen, 1818 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Anisomeria
     Anisomeria Brinck, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)
     Anisomeria D. Don, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Phytolaccaceae (Family)

Anisomyces
 Anisomyces Pilát, 1940 accepted as Gloeophyllum P.A. Karsten, 1882 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Gloeophyllales (Order) > Gloeophyllaceae (Family)
     Anisomyces Theissen & H. Sydow, 1914 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Valsaceae (Family)

Anisomysis
 Anisomysis Bacescu, 1973 accepted as Anisomysis Hansen, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Mysida (Order) > Mysidae (Family)
     Anisomysis Hansen, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Mysida (Order) > Mysidae (Family)

Anisonchus
     Anisonchus Cope, 1881 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Condylarthra (Order) > Periptychidae (Family)
     Anisonchus Dejean, 1833 accepted as Hoplopus Laporte, 1832 (junior objective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Anisonema
 Anisonema A.H.L. Jussieu, 1824 accepted as Phyllanthus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)
     Anisonema Dujardin, 1841 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Peranemea (Class) > Anisonemida (Order) > Anisonemidae (Family)

Anisoneura
     Anisoneura Cameron, 1876 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)
 Anisoneura de Selys Longchamps, 1859 accepted as Philoganga Kirby, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Amphipterygidae (Family)
     Anisoneura Guenée, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Anisoneura Lioy, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Anisonotus
 Anisonotus Raymond, 1920 † accepted as Anisonotella Whittington, 1952 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphida (awaiting allocation) (Family)
     Anisonotus A. Milne-Edwards, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Inachidae (Family)
     Anisonotus White, 1847 accepted as Anisonotus White, 1847 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Isopoda (awaiting allocation) (Family)

Anisonyx
 Anisonyx Rafinesque, 1817 accepted as Spermophilus Cuvier, 1824 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Sciuridae (Family)
     Anisonyx Latreille, 1806 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Anisophyllum
     Anisophyllum Milne-Edwards & Haime, 1850 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Anisophyllidae (Family)
 Anisophyllum Lesquereux, 1874 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliopsida (awaiting allocation) (Order) > (Family)
 Anisophyllum A.H. Haworth, 1812 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Anisophyllum N.J. Jacquin, 1763 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Anisophyllum G. Don ex G. Bentham, 1949 accepted as Anisophyllea R. Brown ex Sabine, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Anisophylleaceae (Family)
 Anisophyllum Boivin ex Baillon, 1858 accepted as Croton Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Anisopleura
     Anisopleura de Selys Longchamps, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Epallagidae (Family)
     Anisopleura E. Fenzl, 1843 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Anisopogon
     Anisopogon Loew, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Anisopogon R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Anisoptera
     Anisoptera P.W. Korthals in Temminck, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Dipterocarpaceae (Family)
     Anisoptera Schneider, 1843 accepted as Platymantispa Rehn, 1939 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Rhachiberothidae (Family)
     Anisoptera Berthold in Latreille, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Anisoptera Herrich-Schäffer, 1840 accepted as Anisoptera Herrich-Schäffer, 1840 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Anisopus
 Anisopus accepted as Sericosura Fry & Hedgpeth, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Pycnogonida (Class) > Pantopoda (Order) > Ammotheidae (Family)
 Anisopus Hope, 1838 accepted as Epirinus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Anisopus Owen, 1842 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Anisopus Audinet-Serville, 1835 accepted as Anisopodus White, 1855 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anisopus Templeton, 1837 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Amphipoda (awaiting allocation) (Family)
     Anisopus Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anisopodidae (Family)
 Anisopus De Haan in Siebold, 1833 accepted as Ovalipes Rathbun, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Carcinidae (Family)
 Anisopus Hitchcock, 1848 † accepted as Batrachopus Hitchcock, 1845 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Crocodylia (Order) > Batrachopodidae (Family)
     Anisopus N.E. Brown, 1895 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Anisoramphus
     Anisoramphus A.P. de Candolle, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Anisoramphus Gray, 1855 accepted as Anisoramphus Gray, 1855 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Anisorhynchus
     Anisorhynchus Schönherr, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Anisorhynchus Meek, 1871 † accepted as Ursirivus Vokes, 1945 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Corbulidae (Family)

Anisosis
     Anisosis Hermann, 1914 † accepted as Laloides Oldroyd, 1972 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Anisosis Deyrolle, 1867 accepted as Zophosis Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Anisostichus
 Anisostichus Bureau, 1864 accepted as Bignonia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Bignoniaceae (Family)
     Anisostichus van Emden, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Anisosticta
     Anisosticta Duponchel in d'Orbigny, 1842 accepted as Anisosticta Dejean, 1835 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)
     Anisosticta Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)

Anisotes
 Anisotes Lindley ex C.F. Meisner, 1838 accepted as Anisotes Lindley ex C.F. Meisner, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Lythraceae (Family)
     Anisotes C.G.D. Nees in Alph. de Candolle, 1847 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Anisothrix
     Anisothrix O. Hoffmann in O. Kuntze, 1898 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Anisothrix Ragonot, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Anisotoma
     Anisotoma Panzer, 1797 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
     Anisotoma Fenzl, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Anisotoma Illiger, 1798 accepted as Anisotoma Panzer, 1797 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
 Anisotoma Schmidt, 1841 accepted as Leiodes Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
 Anisotoma Knoch in Kugelann, 1798 accepted as Anisotoma Panzer, 1797 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)

Anisotylus
     Anisotylus Caldwell, 1949 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Anisotylus Timberlake, 1919 accepted as Homalotylus Mayr, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)

Anisoxya
     Anisoxya Mulsant, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melandryidae (Family)
 Anisoxya Topsent, 1898 accepted as Topsentia Berg, 1899 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Suberitida (Order) > Halichondriidae (Family)

Anissus
     Anissus Dlabola, 1980 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Anissus Meek, 1876 † accepted as Anisus Studer, 1820 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)

Anisum
 Anisum J.C. Schaeffer, 1760 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Anisum J. Hill, 1756 accepted as Pimpinella Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Anisus
     Anisus Dejean, 1821 accepted as Bronchus Germar, 1817 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Anisus Studer, 1820 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)

Anius
 Anius Pascoe, 1885 accepted as Nephius Pascoe, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Anius Candèze, 1889 accepted as Candanius Hayek, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Anixia
 Anixia H. Hoffmann, 1862 accepted as Orbicula M.C. Cooke, 1871 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pyronemataceae (Family)
     Anixia E.M. Fries, 1819 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricomycetidae incertae sedis (Order) > Agaricomycetidae incertae sedis (Family)

Ankyroderma
 Ankyroderma Ludwig, 1890 accepted as Molpadia Cuvier, 1817 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Molpadiida (Order) > Molpadiidae (Family)
 Ankyroderma Danielssen & Koren, 1881 accepted as Molpadia Cuvier, 1817 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Molpadiida (Order) > Molpadiidae (Family)

Anna
     Anna Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)
     Anna Malloch, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Anna Pellegrin, 1930 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
     Anna Amalitsky, 1922 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Annamia
     Annamia L.T.T. Nguyen in Nguyen, Cronberg, Moestrup & Daugbjerg, 2013 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Oscillatoriales (Order) > Microcoleaceae (Family)
     Annamia Hora, 1932 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Balitoridae (Family)

Annandalea
 Annandalea Topsent, 1928 accepted as Thoosa Hancock, 1849 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Thoosidae (Family)
     Annandalea Bolivar, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Pyrgomorphidae (Family)

Annandalia
 Annandalia Needham, 1909 accepted as Psectra Hagen, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Hemerobiidae (Family)
     Annandalia Topsent, 1928 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Annea
     Annea B.A. Mackinder & J.J. Wieringa, 2013 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Annea Thies, 1983 † · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Orectolobiformes (Order) > Orectolobiformes (awaiting allocation) (Family)

Annella
     Annella S.K. Srivastava, 1976 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
     Annella Gray, 1858 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Subergorgiidae (Family)

Anneslea
     Anneslea Wallich, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Pentaphylacaceae (Family)
 Anneslea Roxburgh ex H.C. Andrews, 1811 accepted as Anneslea Roxburgh ex H.C. Andrews, 1811 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Nymphaeales (Order) > Nymphaeaceae (Family)

Annickia
     Annickia A.K. van Setten & P.J.M. Maas, 1990 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliales (Order) > Annonaceae (Family)
     Annickia Gibeaux, 1990 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)

Anningia
 Anningia Cox, 1936 † accepted as Anningella Cox, 1958 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pectinida (Order) > Buchiidae (Family)
     Anningia Broom, 1927 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Annona
     Annona Distant, 1884 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Annona Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliales (Order) > Annonaceae (Family)

Annoselix
     Annoselix Iredale, 1939, nom. nud. accepted as Annoselix Iredale, 1939 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)
     Annoselix Iredale, 1939 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)

Annularia
 Annularia B.V. Timofeev & T.N. Hermann in B.S. Sokolov, 1979 † accepted as · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)
     Annularia Sternberg, 1821 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Equisetales (Order) > Calamitaceae (Family)
     Annularia Rafinesque, 1815 · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
 Annularia Hochstetter, 1841 accepted as Voacanga Du Petit-Thouars, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Annularia (S. Schulzer von Müggenburg) Gillet, 1876 accepted as Chamaeota (W.G. Smith) F.S. Earle, 1909 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Pluteaceae (Family)
     Annularia Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Annulariidae (Family)

Annularius
 Annularius Roussel, 1806 accepted as Coprinus Persoon, 1797 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Agaricaceae (Family)
 Annularius S. Komura, 2005 † accepted as Circularius E.A. Molinari-Novoa, C.E. Sánchez Ocharan & M.D. Guiry in Molinari-Novoa et al., 2021 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > (Order) > Bacillariophyceae incertae sedis (Family)

Annulina
 Annulina Link in C.G.D. Nees, 1820 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Cladophorales (Order) > Cladophoraceae (Family)
     Annulina Terquem, 1862 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Annulina M.F. Neuburg ex E.S. Rasskazova, 1961 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Equisetales (Order) > Gondwanostachyaceae (Family)

Annulodiscus
     Annulodiscus M. Hajós, 1966 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)
 Annulodiscus Tardieu-Blot, 1948 accepted as Salacia Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Anoba
     Anoba Walker, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Anoba accepted as Onoba H. Adams & A. Adams, 1852 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)

Anocelis
 Anocelis Grube, 1872 accepted as Alaoplana Kenk, 1974 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Tricladida (Order) > Dendrocoelidae (Family)
     Anocelis Stimpson, 1857 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Tricladida (Order) > Dendrocoelidae (Family)

Anocerastes
 Anocerastes Imhoff, 1856 accepted as Anacerastes Labram & Imhoff, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Anocerastes Lacordaire, 1866 accepted as Anacerastes Labram & Imhoff, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Anodesia
     Anodesia Agassiz, 1846 accepted as Anodesis Solier, 1834 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Anodesia Dajoz, 1980 accepted as Madadesia Dajoz, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Zopheridae (Family)

Anodesis
     Anodesis Solier, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Anodesis Gistl, 1848 accepted as Notiobia Perty, 1830 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Anodiscus
 Anodiscus Perrier, 1869 accepted as Ctenodiscus Müller & Troschel, 1842 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Paxillosida (Order) > Ctenodiscidae (Family)
     Anodiscus Bentham in Bentham & J.D. Hooker, 1876 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Anodocheilus
     Anodocheilus Babington, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)
     Anodocheilus Babington in Hope, 1838 accepted as Anodocheilus Babington, 1841 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Anodon
 Anodon Wagler, 1830 accepted as Hyperoodon Lacépède, 1804 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Ziphiidae (Family)
 Anodon Rabenhorst, 1848 accepted as Grimmia J. Hedwig, 1801 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Grimmiales (Order) > Grimmiaceae (Family)
 Anodon Smith, 1829 accepted as Dasypeltis Wagler, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
     Anodon Fairmaire, 1871 accepted as Paranodon Cockerell, 1905 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Anodon Oken, 1815 † accepted as Anodonta Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
 Anodon Agassiz, 1846 accepted as Aodon Lacepède, 1798 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Myliobatidae (Family)

Anodonta
     Anodonta Link, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
     Anodonta Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
 Anodonta Saunders, 1843 accepted as Cryptocephalus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Anodonta Herrich-Schäffer, 1855 accepted as Anodonta Herrich-Schäffer, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Anodonta Rambur, 1858 accepted as Anodonta Rambur, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Anodonte
 Anodonte Fischer de Waldheim, 1807 accepted as Anodontites Bruguière, 1792 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Mycetopodidae (Family)
 Anodonte Fischer de Waldheim, 1823 † accepted as Anodonta Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)

Anodontina
     Anodontina Macquart, 1838 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Anodontina Mörch, 1853 accepted as Anodontina Mörch, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Lucinidae (Family)

Anodontochilus
 Anodontochilus Agassiz, 1846 accepted as Anodocheilus Babington, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)
 Anodontochilus Régimbart, 1895 accepted as Anodocheilus Babington, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Anodontophora
     Anodontophora Cossmann, 1897 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Trigonodidae (Family)
     Anodontophora Pomorski, 2007 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Onychiuridae (Family)

Anodontopsis
     Anodontopsis M'Coy, 1851 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Modiomorphoida (Order) > Modiomorphoida (awaiting allocation) (Family)
 Anodontopsis Simpson in F.C. Baker, 1898 accepted as Anodontoides Simpson in F.C. Baker, 1898 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)

Anodontus
 Anodontus Cervigón, 1961 accepted as Guentherus Osório, 1917 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Ateleopodiformes (Order) > Ateleopodidae (Family)
     Anodontus Stouge & Bagnoli, 1988 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodonta (awaiting allocation) (Order) > (Family)

Anodus
     Anodus Burmeister, 1847 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptiliidae (Family)
     Anodus Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Hemiodontidae (Family)
 Anodus Nordmann, 1837 accepted as Tasgius Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Anodus Bruch & W.P. Schimper in Bruch, W.P. Schimper & Gümbel, 1846 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Grimmiales (Order) > Seligeriaceae (Family)
 Anodus Agassiz in Spix & Agassiz, 1829 accepted as Anodus Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Hemiodontidae (Family)

Anoectochilus
     Anoectochilus Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Anoectochilus Redtenbacher, 1845 accepted as Aulonium Erichson, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Zopheridae (Family)

Anoema
 Anoema König, 1825 † accepted as Prolagus Pomel, 1852 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Lagomorpha (Order) > Prolagidae (Family)
 Anoema Cuvier, 1809 accepted as Cavia Pallas, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Caviidae (Family)

Anogcodes
     Anogcodes Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Oedemeridae (Family)
 Anogcodes Gistl, 1848 accepted as Anogcodes Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Oedemeridae (Family)

Anogmius
     Anogmius Cope, 1871 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Anogmius Cope, 1877 † accepted as Bananogmius Whitley, 1940 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tselfatiiformes (Order) > Plethodidae (Family)

Anogramma
 Anogramma Ogilby, 1899 accepted as Callanthias Lowe, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Callanthiidae (Family)
     Anogramma Link, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)

Anoixis
     Anoixis Townes, 1969 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Anoixis Chang, Kirejtshuk & Ren, 2010 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Anoma
     Anoma Albers, 1850 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Urocoptidae (Family)
     Anoma Loureiro, 1790 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Moringaceae (Family)

Anomaea
 Anomaea Walker, 1856 accepted as Anomoia Walker, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
     Anomaea Blanchard, 1845 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Anomaeus
 Anomaeus Fischer von Waldheim, 1821 accepted as Cymindis Latreille, 1805 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Anomaeus Stephens, 1829 accepted as Anomaeus Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Anomala
 Anomala Marshall, 1895 accepted as Anomalomyia Hutton, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Mycetophilidae (Family)
 Anomala Travassos, 1918 accepted as Tanqua Blanchard, 1904 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Gnathostomatidae (Family)
     Anomala von Block in Becker, 1799 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Anomala Deshayes, 1854 accepted as Polymesoda Rafinesque, 1820 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Cyrenidae (Family)
     Anomala Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Anomala Möller, 1832 accepted as Polymesoda Rafinesque, 1820 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Cyrenidae (Family)

Anomalacantha
     Anomalacantha James, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
     Anomalacantha Loeblich & Tappan, 1961 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Actinommidae (Family)

Anomalanthus
 Anomalanthus Bell, 1884 accepted as Clypeaster Lamarck, 1801 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Clypeasteroida (Order) > Clypeasteridae (Family)
 Anomalanthus Klotzsch, 1838 accepted as Erica Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
     Anomalanthus Roberts, 1922 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Anomalesia
     Anomalesia Cooper & Grant, 1976 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Cranaenidae (Family)
 Anomalesia N.E. Brown, 1932 accepted as Gladiolus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Anomalina
     Anomalina Mousson in Hartmann, 1842 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Anomalina d'Orbigny, 1826 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Anomalinidae (Family)

Anomalipes
     Anomalipes Guérin-Méneville, 1832 accepted as Anomalipus Guérin-Méneville, 1831 (misspelling - incorrect original spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Anomalipes Yu, Wang, Chen, Sullivan, Wang, Wang & Xu, 2018 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Saurischia (Order) > Caenagnathidae (Family)

Anomalipus
     Anomalipus Latreille in Guérin, 1846 accepted as Anomalipus Guérin-Méneville, 1831 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Anomalipus Lacordaire, 1859 accepted as Anomalipus Guérin-Méneville, 1831 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Anomalipus Guérin-Méneville, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Anomalocalyx
     Anomalocalyx Brock, 1999 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Obolellata (Class) > Naukatida (Order) > Tomteluvidae (Family)
     Anomalocalyx Ducke, 1932 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Anomalocardia
     Anomalocardia Adams, 1857 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
 Anomalocardia Mörch, 1853 accepted as Tegillarca Iredale, 1939 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)
     Anomalocardia Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)

Anomalocaris
 Anomalocaris Vogdes, 1917 † accepted as Anomalocaris Whiteaves, 1892 † · Animalia (Kingdom) > Arthropoda (Phylum) > Dinocaridida (Class) > Radiodonta (Order) > Anomalocarididae (Family)
     Anomalocaris Whiteaves, 1892 † · Animalia (Kingdom) > Arthropoda (Phylum) > Dinocaridida (Class) > Radiodonta (Order) > Anomalocarididae (Family)
     Anomalocaris (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Anomalocera
 Anomalocera Gray, 1869 accepted as Hippocamelus Leuckart, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)
     Anomalocera Westwood, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Anomalocera Templeton, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Pontellidae (Family)
 Anomalocera Philippi, 1870 accepted as Hippocamelus Leuckart, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)

Anomalochilus
     Anomalochilus Blanchard, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Anomalochilus Lidth de Jeude in Weber, 1890 accepted as Anomochilus Berg, 1901 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Anomochilidae (Family)

Anomalocystites
     Anomalocystites Hall, 1859 † · Animalia (Kingdom) > Echinodermata (Phylum) > Stylophora (Class) > Mitrata (Order) > Anomalocystidae (Family)
     Anomalocystites Billings, 1858 † accepted as Anomalocystites Hall, 1859 † (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Stylophora (Class) > Mitrata (Order) > Anomalocystidae (Family)

Anomalodon
     Anomalodon Jan, 1863 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Anomalodon Bowdich in T.E. Bowdich, 1825 accepted as Pomadasys Lacepède, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Haemulidae (Family)

Anomalon
     Anomalon Panzer, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Anomalon Jurine, 1807 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Anomalonema
 Anomalonema Travassos, 1925 accepted as Tanqua Blanchard, 1904 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Gnathostomatidae (Family)
     Anomalonema Raymond, 1946 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Anomalonyx
 Anomalonyx Moser, 1922 accepted as Anomonyx Saylor, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Anomalonyx Moser, 1921 accepted as Anomonyx Saylor, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Anomalonyx Denier, 1935 accepted as Epicauta Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Meloidae (Family)
     Anomalonyx Weise, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Anomalopleura
 Anomalopleura Kleine, 1916 accepted as Megalosebus Kolbe, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Anomalopleura Leonardi, 1948 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Anomalops
     Anomalops Kner, 1868 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Beryciformes (Order) > Anomalopidae (Family)
 Anomalops Jekel, 1875 accepted as Sanchezruizia Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Anomaloptera
 Anomaloptera Lioy, 1863 accepted as Nigrotipula Hutson & Vane-Wright, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)
     Anomaloptera Perris in Amyot & Serville, 1843 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Anomaloptera Burmeister, 1855 accepted as Anomaloptera Burmeister, 1855 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Anomalopterus
     Anomalopterus Gray, 1855 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Anomalopterus Vaillant, 1886 accepted as Leptochilichthys Garman, 1899 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osmeriformes (Order) > Leptochilichthyidae (Family)

Anomalopteryx
 Anomalopteryx Stein, 1874 accepted as Anomalopterygella Fischer, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Limnephilidae (Family)
     Anomalopteryx Reichenbach, 1853 † · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Dinornithiformes (Order) > Emeidae (Family)
     Anomalopteryx Kennel, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Anomalopus
 Anomalopus Stimpson, 1871 accepted as Anomalothir Miers, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Majidae (Family)
     Anomalopus Duméril, 1851 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
     Anomalopus Casey, 1915 accepted as Anomalopides Strand, 1928 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Anomalopus Gilmore, 1927 † accepted as Anomalopodia Strand, 1935 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Pelycosauria (Order) > Pelycosauria (awaiting allocation) (Family)

Anomalorbis
     Anomalorbis Paul, 1991 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Anomalorbis Vine, 1972 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Serpulidae (Family)

Anomalostoma
 Anomalostoma Brauer, 1865 accepted as Philanisus Walker, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Chathamiidae (Family)
     Anomalostoma Cordeira, 1981 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Hystrignathidae (Family)

Anomaloxylon
     Anomaloxylon Gothan, 1910 † accepted as Protocedroxylon W. Gothan, 1910 † (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Araucariales (Order) > Araucariaceae (Family)
     Anomaloxylon Felix, 1887 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliopsida (awaiting allocation) (Order) > (Family)

Anomalurus
     Anomalurus Waterhouse, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Anomaluridae (Family)
 Anomalurus Fitzinger, 1843 accepted as Underwoodisaurus Wermuth, 1965 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)

Anomia
 Anomia Deshayes, 1830 accepted as Anomia Deshayes, 1830 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Anomia Forskål, 1775 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Anomia Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Ostreida (Order) > Anomiidae (Family)
     Anomia Fieber, 1866 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Anomiopsis
 Anomiopsis Burmeister, 1861 accepted as Anomiopsoides Blackwelder, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Anomiopsis Westwood, 1837 accepted as Eucranium Brullé, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Anomites
     Anomites Martini, 1767 (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Anomites Martin, 1809 (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Anomites Wahlenberg, 1821 (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Anomites Huepsch, 1781 (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)

Anommatophilus
     Anommatophilus Wasmann, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Anommatophilus Wasmann, 1902 accepted as Anommatophilus Wasmann, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Anommatoxenus
     Anommatoxenus Wasmann, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Anommatoxenus Wasmann, 1902 accepted as Anommatoxenus Wasmann, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Anomocystis
     Anomocystis Haeckel, 1896, nom. nud. † accepted as Anomalocystites Hall, 1859 † (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Stylophora (Class) > Mitrata (Order) > Anomalocystidae (Family)
 Anomocystis Haeckel, 1896 † accepted as Anomalocystites Hall, 1859 † · Animalia (Kingdom) > Echinodermata (Phylum) > Stylophora (Class) > Mitrata (Order) > Anomalocystidae (Family)
 Anomocystis Jaekel, 1918 † accepted as Spermacystis Ubaghs, 1967 † · Animalia (Kingdom) > Echinodermata (Phylum) > Stylophora (Class) > Mitrata (Order) > Mitrata (awaiting allocation) (Family)

Anomoderus
 Anomoderus de Chaudoir, 1879 accepted as Anomophaenus Fauvel, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Anomoderus Fairmaire, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anomodon
     Anomodon W.J. Hooker & T. Taylor, 1818 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnales (Order) > Anomodontaceae (Family)
     Anomodon Le Conte, 1848 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Soricomorpha (Order) > Talpidae (Family)
     Anomodon Keyser, 1975 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Therapsida (Order) > Diictodontidae (Family)

Anomoea
     Anomoea Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Anomoea Lacordaire, 1848 accepted as Anomoia Walker, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Anomoia
 Anomoia Chevrolat in Dejean, 1836 accepted as Anomoea Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Anomoia Walker, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Anomolepis
 Anomolepis Spassky, Yurpalova & Kornyushin, 1968 accepted as Anomolepis Spassky & Gubanov, 1959 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Dilepididae (Family)
     Anomolepis Spassky & Gubanov, 1959 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Dilepididae (Family)

Anomoneura
     Anomoneura Schwarz, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Anomoneura Warren, 1901 accepted as Anomozela Fletcher, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Anomospermum
 Anomospermum Dalzell, 1851 accepted as Actephila Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)
     Anomospermum Miers, 1851 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Menispermaceae (Family)

Anomphala
     Anomphala Westerlund, 1886 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Anomphala Herrmannsen, 1846 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Anomphalus
     Anomphalus Dybowski & Grochmalicki, 1925 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Anomphalus Meek & Worthen, 1866 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Anomphalidae (Family)

Anomus
     Anomus Fairmaire, 1847 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)
 Anomus Laporte de Castelnau, 1840 accepted as Aomus Schönherr, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Anomus Agassiz, 1846 accepted as Anomis Hübner, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Anoncholaimus
     Anoncholaimus Stekhoven, 1950 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Oncholaimida (Order) > Oncholaimidae (Family)
     Anoncholaimus Cobb, 1920 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Oncholaimida (Order) > Oncholaimidae (Family)

Anoncodes
     Anoncodes Schmidt, 1844 accepted as Anogcodes Dejean, 1834 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Oedemeridae (Family)
 Anoncodes Redtenbacher, 1845 accepted as Nacerdes Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Oedemeridae (Family)

Anoncosorius
 Anoncosorius Notman, 1925 accepted as Anancosorius Bernhauer, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Anoncosorius Bernhauer & Schubert, 1911 accepted as Anancosorius Bernhauer, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Anonychia
     Anonychia Warren, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Anonychia Reuter, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Anonymus
     Anonymus Storer, 1988 † accepted as Churcheria Storer, 2002 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Ischyromyidae (Family)
     Anonymus Lang, 1884 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Anonymidae (Family)

Anonyx
     Anonyx Krøyer, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Uristidae (Family)
 Anonyx Agassiz, 1846 accepted as Aonyx Lesson, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)
 Anonyx Agassiz, 1846 [2] accepted as Aonychus Schönherr, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Anophthalmus
 Anophthalmus Peyerimhoff, 1909 accepted as Speotrechus Jeannel, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Anophthalmus LeConte, 1861-1862 accepted as Neaphaenops Jeannel, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Anophthalmus Alikuhni, 1949 accepted as Alikuhnia Hartman, 1959 (junior homonym)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Microphthalmidae (Family)
 Anophthalmus Blatchley, 1910 accepted as Pseudanophthalmus Jeannel, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Anophthalmus Schmidt in Sturm, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Anophthalmus Jeannel, 1909 accepted as Geotrechus Jeannel, 1919 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Anoplia
 Anoplia E.G. von Steudel, 1854 accepted as Leptochloa Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Anoplia Hall & Clarke, 1892 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Chonetidae (Family)

Anopliella
     Anopliella Banks, 1939 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Anopliella Racheboeuf, 1998 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Anopliidae (Family)

Anoplistes
     Anoplistes Westwood, 1835 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Anoplistes Audinet-Serville, 1834 accepted as Asias Semenov, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anoplitis
 Anoplitis Chapuis, 1875 accepted as Sumitrosis Butte, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Anoplitis Kirby, 1837 accepted as Chalepus Thunberg, 1805 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Anoplium
 Anoplium Haldeman, 1847 accepted as Hesperophanes Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Anoplium auctt., Lacordaire, 1869 accepted as Micranoplium Linsley, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anoplocephala
     Anoplocephala Blanchard, 1848 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Anoplocephalidae (Family)
 Anoplocephala Stål, 1870 accepted as Megymenum Guérin, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Dinidoridae (Family)

Anoplocephalus
 Anoplocephalus Hendrick, 1895 accepted as Anoplocephala Blanchard, 1848 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Anoplocephalidae (Family)
     Anoplocephalus Schaeffer, 1906 accepted as Coscinocephalus Prell, 1936 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Anoplocis
     Anoplocis Lea, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Anoplocis Kawanabe, 1996 accepted as Aliocis Sandoval-Gómez & Lopes-Andrade, 2015 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ciidae (Family)

Anoplocnemus
 Anoplocnemus Burmeister, 1847 accepted as Odontolabis Hope, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
 Anoplocnemus Hope, 1845 accepted as Odontolabis Hope, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)

Anoplognathus
     Anoplognathus Leach in Kirby, 1819 accepted as Anoplognathus Leach, 1815 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Anoplognathus Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Anoploiulus
     Anoploiulus Verhoeff, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)
     Anoploiulus Verhoeff, 1893 accepted as Anoploiulus Verhoeff, 1893 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)

Anoplomerus
     Anoplomerus Guérin-Méneville, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anoplomerus Thomson, 1860 accepted as Anoplomerus Guérin-Méneville, 1844 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anoplomerus Dejean, 1835 accepted as Anoplomerus Guérin-Méneville, 1844 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anoplomerus Rondani, 1856 accepted as Anoplopus Rondani, 1857 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Anoplonotus
 Anoplonotus Trouessart, 1916 accepted as Inermodorsus Gaud & Mouchet, 1959 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Syringobiidae (Family)
     Anoplonotus Smith, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Munidopsidae (Family)

Anoplophora
     Anoplophora Hope, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Anoplophora Alberti, 1864 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Trigonodidae (Family)

Anoplopus
     Anoplopus Wagler, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)
     Anoplopus Rondani, 1857 accepted as Scellus Loew, 1857 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Anoplorhynchus
 Anoplorhynchus Sundevall, 1872 accepted as Anodorhynchus Spix, 1824 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Psittaciformes (Order) > Psittacidae (Family)
 Anoplorhynchus Meixner, 1925 accepted as Sekerana Sekera, 1912 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Rhabdocoela (Order) > Koinocystididae (Family)

Anoplosoma
 Anoplosoma G.O. Sars, 1911 accepted as Anoplosomella Strand, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Ameiridae (Family)
 Anoplosoma Agassiz, 1846 accepted as Anoplosoma Agassiz, 1846 · Animalia (Kingdom) > Sipuncula (Phylum) > Sipuncula (awaiting allocation) (Class) > Sipuncula (awaiting allocation) (Order) > Sipuncula (awaiting allocation) (Family)

Anoplostethus
     Anoplostethus Schmidt, 1909 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cercopidae (Family)
     Anoplostethus Brullé, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Anoplostoma
     Anoplostoma Bütschli, 1874 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Enoplida (Order) > Anoplostomatidae (Family)
     Anoplostoma E.A. Hodgson & Allison, 1962 (uncertain)· Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Jungermanniales (Order) > Chaetophyllopsaceae (Family)

Anoplus
     Anoplus Dejean, 1821 accepted as Anoplus Schönherr, 1826 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Anoplus Agassiz, 1846 accepted as Buprestis Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Anoplus Temminck & Schlegel, 1843 accepted as Banjos Bleeker, 1876 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Banjosidae (Family)
 Anoplus Dalla Torre, 1897 accepted as Anoplius Dufour, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pompilidae (Family)
     Anoplus Schönherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Anoplus Gray, 1840 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Anoplus Germar, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Anops
     Anops d'Orbigny, 1836 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Anops Oken, 1815 accepted as Haemobaphes Steenstrup & Lütken, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Chondracanthidae (Family)
     Anops Boisduval, 1836 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Anops Brendel, 1890 accepted as Arianops Brendel, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Anops Bell, 1833 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Amphisbaenidae (Family)

Anopsilus
     Anopsilus Jacobson, 1917 accepted as Lapsionus Ponting, 2020 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Anopsilus Kirsch, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Anorthorrhinus
 Anorthorrhinus Sharp, 1892 accepted as Anorthorhinus Blackburn, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Anorthorrhinus Blackburn, 1890 accepted as Anorthorrhinus Sharp, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Anorthus
     Anorthus Loew, 1850 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Anorthus Horváth, 1890 accepted as Nysius Dallas, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)

Anostoma
     Anostoma Fischer, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)
 Anostoma van Hasselt in Bleeker, 1859 accepted as Betta Bleeker, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Osphronemidae (Family)
 Anostoma Rafinesque, 1815 accepted as Anostomus Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Anostomidae (Family)

Anostomus
 Anostomus Cuvier, 1816 accepted as Anostomus Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Anostomidae (Family)
     Anostomus Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Anostomidae (Family)

Anota
 Anota (Lindley) Schlechter, 1914 accepted as Rhynchostylis Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Anota Gray, 1863 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Testudines (awaiting allocation) (Family)
     Anota Hallowell, 1852 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Phrynosomatidae (Family)

Anoteropora
     Anoteropora Canu & Lecointre, 1925 accepted as Anoteropora Canu & Bassler, 1927 (nomen nudum)· Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Mamilloporidae (Family)
     Anoteropora Canu & Bassler, 1927 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Mamilloporidae (Family)

Anotheca
 Anotheca Español, 1969 accepted as Stagetus Wollaston, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
     Anotheca Smith, 1939 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hylidae (Family)

Anotis
 Anotis A.P. de Candolle, 1830 accepted as Arcytophyllum Willdenow ex J.A. Schultes & J.H. Schultes, 1827 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Anotis Rafinesque, 1815 accepted as Spalax Güldenstädt, 1770 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Spalacidae (Family)
     Anotis Bavay, 1869 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)

Anotus
 Anotus Wagner in Schreber, 1855 accepted as Blarina Gray, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Soricomorpha (Order) > Soricidae (Family)
     Anotus Westerlund, 1883 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Anotus Agassiz, 1846 accepted as Aotus Illiger, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Aotidae (Family)

Anoura
     Anoura Gray, 1840 accepted as Anoura Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Anoura Gervais, 1843 accepted as Neanura Macgillivray, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Neanuridae (Family)
     Anoura Gray, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Phyllostomidae (Family)

Anourella
 Anourella Vignon, 1901 accepted as Anourella Vignon, 1901 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Molgulidae (Family)
 Anourella Bory de St. Vincent, 1822 accepted as Keratella Bory de St. Vincent, 1822 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Brachionidae (Family)

Ansa
     Ansa Walker, 1868 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Ansa Walker, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Ansa Temirbekova in Magomedov & Temirbekova, 1978 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)

Anserella
     Anserella Selby, 1840 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Anserella Swainson, 1837 accepted as Anserella Swainson, 1837 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Anserina
 Anserina Velenovský, 1934 accepted as Ascobolus Persoon, 1791 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Ascobolaceae (Family)
     Anserina Dumortier, 1827 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Ansonia
     Ansonia Stoliczka, 1870 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Bufonidae (Family)
     Ansonia Kiriakoff, 1967 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)

Ansorgia
     Ansorgia Warren, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Ansorgia Boulenger, 1912 accepted as Pareutropius Regan, 1920 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Schilbeidae (Family)
 Ansorgia Krzeminski & Lukaschevitch, 1993 † accepted as Ansorgius Krzeminski in Evenhuis, 1994 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ansorgiidae (Family)

Ansorus
 Ansorus Marshall, 1935 accepted as Ansorus Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Ansorus Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Antacanthus
 Antacanthus A. Richard ex A.P. de Candolle, 1830 accepted as Scolosanthus Vahl, 1796 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Antacanthus Dewalque, 1877 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Antaceus
     Antaceus Bonaparte, 1846 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Antaceus Heckel in Fitzinger & Heckel, 1836 accepted as Acipenser Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Acipenseriformes (Order) > Acipenseridae (Family)

Antagmopleura
     Antagmopleura Chernysheva, 1961 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Antagmopleura Lermontova in Sivov, Lermontova & Chernysheva, 1960 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Antagmopleura Repina, 1960 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Antalia
     Antalia A. Doğru-Koca, 2024 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Antalia Mannerheim, 1830 accepted as Autalia Mannerheim, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Antalium
     Antalium Herrmannsen, 1846 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Antalium Guettard, 1770 accepted as Serpula Linnaeus, 1758 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Serpulidae (Family)

Antarctia
     Antarctia Hübner, 1820 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Antarctia Dejean, 1828 accepted as Metius Curtis, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Antarctodomus
     Antarctodomus A. Adams, 1863 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)
     Antarctodomus Dell, 1972 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)

Antarctodrilus
     Antarctodrilus Brinkhurst, 1991 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Phreodrilidae (Family)
     Antarctodrilus Brinkhurst, 1966 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)

Antares
     Antares Sollas, 1888 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
 Antares zur Strassen, 1902 accepted as Pleuroprion zur Strassen, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Arcturidae (Family)

Antatlasia
     Antatlasia Hupé, 1952 † accepted as Antatlasia Hupé, 1952 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ellipsocephalidae (Family)
     Antatlasia Hupé, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ellipsocephalidae (Family)

Antedon
     Antedon de Fréminville, 1811 · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Comatulida (Order) > Antedonidae (Family)
     Antedon Burmeister, 1847 accepted as Antodon Brême, 1845 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Antelope
 Antelope Murr, 1775 accepted as Antilope Pallas, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Antelope Forster, 1790 accepted as Antilope Pallas, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Antennaria
     Antennaria Dokhtouroff, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)
 Antennaria Link, 1809 accepted as Antennularia H.G.L. Reichenbach, 1829 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Venturiales (Order) > Venturiaceae (Family)
     Antennaria J. Gaertner, 1791 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Antennarius
 Antennarius Cuvier, 1816 (ex Commerson) accepted as Antennarius Daudin, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Antennariidae (Family)
 Antennarius Commerson in Lacepède, 1798 accepted as Antennarius Daudin, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Antennariidae (Family)
     Antennarius Daudin, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Antennariidae (Family)

Antennella
     Antennella Allman, 1877 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Halopterididae (Family)
 Antennella Theissen & H. Sydow, 1918 accepted as Scorias E.M. Fries, 1832 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Capnodiaceae (Family)

Antennellopsis
     Antennellopsis Jäderholm, 1896 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Halopterididae (Family)
 Antennellopsis J.M. Mendoza in F.L. Stevens, 1930 accepted as Phragmocapnias Theissen & H. Sydow, 1918 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Capnodiaceae (Family)

Antennopsis
 Antennopsis Allman, 1877 accepted as Nemertesia Lamouroux, 1812 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Plumulariidae (Family)
     Antennopsis R. Heim, 1952 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Antennularia
 Antennularia Lamarck, 1816 accepted as Nemertesia Lamouroux, 1812 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Plumulariidae (Family)
     Antennularia H.G.L. Reichenbach, 1829 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Venturiales (Order) > Venturiaceae (Family)

Antenor
 Antenor de Montfort, 1808 accepted as Lenticulina Lamarck, 1804 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Vaginulinidae (Family)
 Antenor Jones in Dixon, 1878 † accepted as Antedon de Fréminville, 1811 · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Comatulida (Order) > Antedonidae (Family)
 Antenor Ridgway, 1873 accepted as Parabuteo Baird, Brewer & Ridgway, 1874 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)

Anteris
     Anteris Wallengren, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Anteris Förster, 1856 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)

Anteros
     Anteros Laporte, 1840 accepted as Helops Fabricius, 1775 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Anteros Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)
 Anteros Blanchard, 1845 accepted as Agapete Newman, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anthalia
 Anthalia Zetterstedt, 1837 accepted as Anthalia Zetterstedt, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Hybotidae (Family)
     Anthalia Zetterstedt, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Hybotidae (Family)

Anthea
 Anthea Johnston, 1838 accepted as · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Antheidae (Family)
 Anthea Catesby, 1771 accepted as Anthea Catesby, 1771 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Lutjanidae (Family)

Anthedon
 Anthedon Agassiz, 1846 † accepted as Antedon de Fréminville, 1811 · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Comatulida (Order) > Antedonidae (Family)
     Anthedon Robertson, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Anthelephilus
 Anthelephilus Hope, 1840 accepted as Anthelephila Hope, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthicidae (Family)
 Anthelephilus LaFerté-Senéctère, 1849 accepted as Anthelephila Hope, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthicidae (Family)

Anthelia
     Anthelia (Dumortier) Dumortier, 1835 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Jungermanniales (Order) > Antheliaceae (Family)
     Anthelia Hulst, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Anthelia Lamarck, 1816 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Xeniidae (Family)
 Anthelia H.W. Schott, 1863 accepted as Epipremnum H.W. Schott, 1857 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)

Anthemodes
 Anthemodes Haeckel, 1888 accepted as Cordagalma Totton, 1932 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Agalmatidae (Family)
 Anthemodes Haeckel, 1869 accepted as Nanomia A. Agassiz, 1865 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Agalmatidae (Family)

Anthemoessa
     Anthemoessa Agassiz, 1846 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Anthemoessa Robertson, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Anthemoessa Sandhouse, 1943 accepted as Anthemoessa Robertson, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Anthemoëssa
 Anthemoëssa Robertson, 1905 accepted as Anthemoessa Robertson, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Anthemoëssa Agassiz, 1846 accepted as Anthemoessa Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Antherophagus
     Antherophagus Dejean, 1821 accepted as Antherophagus Latreille in Cuvier, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cryptophagidae (Family)
     Antherophagus Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cryptophagidae (Family)

Antheroplax
     Antheroplax Lendenfeld, 1887 accepted as Antheroplax Lendenfeld, 1887 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Dictyoceratida (Order) > Thorectidae (Family)
 Antheroplax Lendenfeld, 1889 accepted as Thorecta Lendenfeld, 1888 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Dictyoceratida (Order) > Thorectidae (Family)

Antherura
     Antherura Gray, 1842 accepted as Antherura Gray, 1842 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Antherura Loureiro, 1790 accepted as Psychotria Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Anthicimorphus
 Anthicimorphus Franz, 1975 accepted as Euconnus Thomson, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Anthicimorphus Franz, 1986 accepted as Euconnus Thomson, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Anthobaris
 Anthobaris Hustache, 1938 accepted as Anthobaris Hustache, 1951 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Anthobaris Hustache, 1951 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Anthobates
 Anthobates Le Conte in Agassiz, 1850 accepted as Pentaria Mulsant, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Mordellidae (Family)
 Anthobates Gistl, 1848 accepted as Chalcodermus Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Anthobium
 Anthobium Erichson, 1839 accepted as Eusphalerum Kraatz, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Anthobium Leach in Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Anthocephala
 Anthocephala Guiart, 1925 accepted as Anthocephalus Rudolphi, 1819 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Trypanorhyncha (Order) > Lacistorhynchidae (Family)
     Anthocephala Cabanis & Heine, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)

Anthocephalus
 Anthocephalus Schneider, 1887 accepted as Anthorhynchus Labbé, 1899 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Actinocephalidae (Family)
 Anthocephalus Rudolphi, 1819 accepted as Callitetrarhynchus Pintner, 1931 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Trypanorhyncha (Order) > Lacistorhynchidae (Family)
 Anthocephalus A. Richard, 1830 accepted as Breonia A. Richard ex A.P. de Candolle, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Anthocoma
     Anthocoma Turner, 1946 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
     Anthocoma Zollinger & Moritzi, 1845 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Anthocroca
     Anthocroca Zeller, 1877 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Anthocroca Butler, 1878 accepted as Anthocroca Butler, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Anthocyrtis
     Anthocyrtis Ehrenberg, 1847, nom. nud. accepted as Anthocyrtis Ehrenberg, 1847 (nomen nudum)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Theoperidae (Family)
     Anthocyrtis Ehrenberg, 1847 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Theoperidae (Family)

Anthodiscus
 Anthodiscus E. Grove & G. Sturt, 1887 accepted as · Chromista (Kingdom) > Bacillariophyta (Phylum) > Coscinodiscophyceae (Class) > Coscinodiscales (Order) > Heliopeltaceae (Family)
     Anthodiscus G.F.W. Meyer, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Caryocaraceae (Family)

Anthodon
 Anthodon Owen, 1876 † accepted as Paranthodon Nopcsa, 1929 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Ornithischia (Order) > Stegosauridae (Family)
     Anthodon Ruiz & Pavon, 1798 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Anthometra
     Anthometra Boisduval, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Anthometra Clark, 1915 accepted as Anthometrina Eléaume, Hess & Messing, 2011 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Comatulida (Order) > Antedonidae (Family)

Anthomorpha
     Anthomorpha Bornemann, 1884 † · Animalia (Kingdom) > Porifera (Phylum) > Archaeocyatha (Class) > Archaeocyathida (Order) > Archaeocyathida (awaiting allocation) (Family)
     Anthomorpha † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Oncocerida (Order) > Oncocerida (awaiting allocation) (Family)

Anthomya
     Anthomya Rafinesque, 1815 accepted as Anthomyia Meigen, 1803 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anthomyiidae (Family)
     Anthomya Robineau-Desvoidy, 1830 accepted as Anthomyia Meigen, 1803 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anthomyiidae (Family)

Anthomyces
     Anthomyces Dietel, 1899 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Raveneliaceae (Family)
 Anthomyces Grüss, 1918 accepted as Metschnikowia T. Kamienski, 1899 · Fungi (Kingdom) > Ascomycota (Phylum) > Saccharomycetes (Class) > Saccharomycetales (Order) > Metschnikowiaceae (Family)

Anthomyza
 Anthomyza Zetterstedt in Oken, 1837 accepted as Anthomyia Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anthomyiidae (Family)
     Anthomyza Swainson, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Anthomyza Fallén, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anthomyzidae (Family)

Anthonomus
     Anthonomus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Anthonomus Dietz, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Anthophagus
     Anthophagus Jennings, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Anthophagus Gravenhorst, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Anthophila
     Anthophila Haworth, 1811 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Choreutidae (Family)
 Anthophila Ochsenheimer, 1816 accepted as Eublemma Hübner, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Anthophilax
 Anthophilax Leconte in Agassiz, 1850 accepted as Anthophylax Leconte, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Anthophilax Mulsant, 1863 accepted as Pachyta Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Anthophilax Thomson, 1866 accepted as Gaurotes Leconte, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anthophora
 Anthophora Gistl, 1848 † accepted as Stylophora Schweigger, 1820 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Pocilloporidae (Family)
     Anthophora Latreille, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)

Anthophycus
     Anthophycus Kützing, 1849 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Fucales (Order) > Sargassaceae (Family)
     Anthophycus Piedboeuf, 1887 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Anthophylax
     Anthophylax Leconte, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Anthophylax Blessig, 1873 accepted as Pachyta Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anthophyllum
     Anthophyllum Steudel, 1855 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
 Anthophyllum Schweigger, 1819 accepted as Caryophyllia Lamarck, 1801 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Caryophylliidae (Family)

Anthophysa
     Anthophysa Bory de Saint-Vincent, 1822 · Chromista (Kingdom) > Ochrophyta (Phylum) > Chrysophyceae (Class) > Chromulinales (Order) > Chromulinales incertae sedis (Family)
 Anthophysa Brandt, 1835 accepted as Athorybia Eschscholtz, 1829 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Anthophysidae (Family)
 Anthophysa Chun, 1897 accepted as Athorybia Eschscholtz, 1829 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Agalmatidae (Family)
 Anthophysa Doflein, 1909 accepted as Anthophysa Bory de Saint-Vincent, 1822 · Chromista (Kingdom) > Ochrophyta (Phylum) > Chrysophyceae (Class) > Chromulinales (Order) > Chromulinaceae (Family)

Anthopogon
 Anthopogon Necker ex Rafinesque, 1837 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
 Anthopogon Nuttall, 1818 accepted as Gymnopogon Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Anthora
 Anthora Gray, 1857 accepted as Coelotrochus P. Fischer, 1879 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Trochidae (Family)
     Anthora Walker, 1855 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Anthora Doubleday, 1844 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Anthora (A.P. de Candolle) Fourreau, 1868 accepted as Aconitum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)

Anthostoma
 Anthostoma Rafinesque, 1815 accepted as Caryophyllaeus Müller, 1787 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Caryophyllidea (Order) > Caryophyllaeidae (Family)
 Anthostoma Schmarda, 1861 accepted as Naineris Blainville, 1828 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Orbiniida (Order) > Orbiniidae (Family)
 Anthostoma Nitschke, 1867 accepted as Cryptosphaeria Cesati & De Notaris, 1853 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Xylariales (Order) > Diatrypaceae (Family)
     Anthostoma von Höhnel, 1912 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Xylariales (Order) > Diatrypaceae (Family)

Anthotribus
 Anthotribus Gistel, 1856 accepted as Platystomos Schneider, 1791 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Anthotribus Hoffmann, 1803 accepted as Anthribus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Anthracia
 Anthracia Meigen, 1838 accepted as Nyctia Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
     Anthracia Hübner, 1823 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Anthracias
     Anthracias Mulsant & Rey, 1859 accepted as Anthracias Dejean, 1834 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Anthracias Dejean, 1834 accepted as Cryphaeus Klug, 1833 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Anthracias Klug, 1839 accepted as Allocoelia Mocsáry, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chrysididae (Family)
     Anthracias Redler, 1858 accepted as Anthracias Dejean, 1834 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Anthracias Fischer von Waldheim, 1829 accepted as Anthracias Dejean, 1834 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Anthracites
     Anthracites Redtenbacher, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Anthracites Karny, 1926 accepted as Anthracites Karny, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Anthracomya
     Anthracomya Rondani, 1856 accepted as Morinia Robineau-Desvoidy, 1830 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Polleniidae (Family)
     Anthracomya Salter, 1861 † accepted as Anthraconaia Trueman & Weir, 1946 † (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myalinida (Order) > Naiaditidae (Family)

Anthracomyia
     Anthracomyia Rondani, 1868 accepted as Anthracomya Rondani, 1856 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Polleniidae (Family)
 Anthracomyia Malloch, 1927 accepted as Anthracomyza Malloch, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Polleniidae (Family)

Anthracoptera
     Anthracoptera Salter, 1862 † accepted as Anthracoptera Salter, 1862 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Anthracoptera Salter, 1863 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Anthracosia
     Anthracosia King, 1844 accepted as Anthracosia King, 1844 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Anthracosia King, 1856 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Anthrenoides
     Anthrenoides Ducke, 1907 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Andrenidae (Family)
 Anthrenoides Beal, 2003 accepted as Anthrenus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Anthrenus
     Anthrenus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Anthrenus Müller, 1764 accepted as Anthrenus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Anthrenus Pic, 1937 accepted as Anthrenus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Anthribites
     Anthribites Heer, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
     Anthribites Zherichin in Cromov, Dmitriev, Zherichin, Lebedev, Ponomarenko, Rasnitsyn & Sukatsheva, 1993 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Anthribus
 Anthribus Fabricius, 1790 accepted as Platyrhinus Schellenberg, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Anthribus Clairville, 1798 accepted as Rhinosimus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Salpingidae (Family)
     Anthribus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Anthribus Müller, 1764 accepted as Anthribus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Anthribus LeConte, 1876 accepted as Toxonotus Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Anthribus Thomson, 1859 accepted as Platystomos Schneider, 1791 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Anthriscus
 Anthriscus Bernhardi, 1800 accepted as Torilis Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Anthriscus Persoon, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Anthrobia
     Anthrobia Tellkampf, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)
     Anthrobia Simon, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Anthrocephalus
 Anthrocephalus Krefft, 1871 accepted as Anthocephalus Rudolphi, 1819 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Trypanorhyncha (Order) > Lacistorhynchidae (Family)
 Anthrocephalus Schmiedeknecht, 1909 accepted as Antrocephalus Kirby, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chalcididae (Family)

Anthrodus
 Anthrodus Schönherr, 1833 accepted as Platystomos Schneider, 1791 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Anthrodus Gistl, 1848 accepted as Lepromoris Pascoe, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anthrolomus
 Anthrolomus Hope, 1837 accepted as Anthrolomus Dejean, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Anthrolomus Dejean, 1837 accepted as Trypetes Schönherr, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Anthropithecus
 Anthropithecus Lesson, 1840 accepted as Pan Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Hominidae (Family)
 Anthropithecus Haeckel, 1895 accepted as Pan Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Hominidae (Family)

Anthropodus
     Anthropodus Lapouge, 1894 † accepted as Mesopithecus Wagner, 1839 † (junior subjective synonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Cercopithecidae (Family)
 Anthropodus Schlosser, 1901 † accepted as Dryopithecus Lartet, 1857 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Hominidae (Family)

Anthropomorphus
 Anthropomorphus Seger, 1745 accepted as Geastrum Persoon, 1794 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Geastrales (Order) > Geastraceae (Family)
     Anthropomorphus Ameghino, 1884 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Anthyllis
 Anthyllis Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)
     Anthyllis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Anthypna
     Anthypna Latreille, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Glaphyridae (Family)
     Anthypna Eschscholtz, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Glaphyridae (Family)

Antias
 Antias Richardson, 1906 accepted as Santia Sivertsen & Holthuis, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Pleurocopidae (Family)
     Antias Lacepède, 1798 accepted as Anthias Bloch, 1792 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Anabantidae (Family)
     Antias Distant, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Anticheiropus
     Anticheiropus Hitchcock, 1865 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Saurischia (awaiting allocation) (Family)
     Anticheiropus Sarjeant & Mossman, 1978 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Anapsida (awaiting allocation) (Order) > Anapsida (awaiting allocation) (Family)

Antichira
     Antichira Rübsaamen, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
     Antichira Agassiz, 1846 accepted as Anticheira Eschscholtz, 1818 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Anticlea
     Anticlea Stephens, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Anticlea Stephens, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Anticlea Kunth, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Melanthiaceae (Family)

Anticyra
     Anticyra Curtis, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Psychomyiidae (Family)
     Anticyra Walker, 1855 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Antigastra
     Antigastra Lederer, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
 Antigastra Dalla Torre, 1898 accepted as Antigastra Dalla Torre, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chalcididae (Family)

Antigona
     Antigona Vellozo, 1829 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
     Antigona Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)

Antigone
     Antigone Reichenbach, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Gruiformes (Order) > Gruidae (Family)
 Antigone Gray, 1847 † accepted as Antigona Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)

Antilla
 Antilla Fischer, 1887 accepted as Antilla Fischer, 1887 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Lucinidae (Family)
 Antilla Hustache, 1936 accepted as Autillia Heller, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Antillia
     Antillia R.M. King & H.E. Robinson, 1971 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Antillia Seidlitz, 1905 accepted as Autillia Heller, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Antillia Duncan, 1864 † · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Scleractinia incertae sedis (Family)

Antimima
     Antimima Turner, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
     Antimima N.E. Brown, 1930 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)

Antineura
     Antineura Osten-Sacken, 1881 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Antineura Melander, 1913 accepted as Haplomyza Hendel, 1914 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Agromyzidae (Family)

Antinoe
     Antinoe Thomson, 1864 accepted as Novantinoe Santos-Silva & Hovore, 2007 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Disteniidae (Family)
     Antinoe Kinberg, 1856 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Polynoidae (Family)

Antinoella
     Antinoella Augener in Roemer & Schaudinn, 1928 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Polynoidae (Family)
 Antinoella Malmgren, 1866 accepted as Bylgides Chamberlin, 1919 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Polynoidae (Family)

Antiopa
 Antiopa Meigen, 1800 accepted as Antiopa Meigen, 1800 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Antiopa Stål, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Antiopa Alder & Hancock, 1848 accepted as Janolus Bergh, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Proctonotidae (Family)

Antiora
     Antiora Walker, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
 Antiora Möschler, 1882 accepted as Pseudantiora Kirby, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)

Antipha
     Antipha Walker, 1855 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Antipha Baly, 1865 accepted as Dercetina Gressitt & Kimoto, 1963 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Antipus
     Antipus de Geer, 1778 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Antipus Hitchcock, 1858 † accepted as Batrachopus Hitchcock, 1845 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Crocodylia (Order) > Batrachopodidae (Family)

Antirhynchonella
     Antirhynchonella Oehlert in Fischer, 1887 † accepted as Antirhynchonella Oehlert in Fischer, 1887 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Pentamerida (Order) > Pentameridae (Family)
     Antirhynchonella Quenstedt, 1869 † accepted as Antirhynchonella Quenstedt, 1869 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Pentamerida (Order) > Pentameridae (Family)

Antirrhaea
 Antirrhaea Herrich-Schäffer, 1864 accepted as Antirrhea Hübner, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Antirrhaea Boisduval, 1870 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Antisphodrus
     Antisphodrus Carret, 1907 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Antisphodrus Schaufuss, 1865 accepted as Laemostenus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Antissa
     Antissa Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
 Antissa Stål, 1871 accepted as Euantissa Giglio-Tos, 1927 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Hymenopodidae (Family)

Antithesia
     Antithesia Stephens, 1829 accepted as Antithesia Stephens, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Antithesia Stephens, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Antitragus
 Antitragus J. Gaertner, 1790 accepted as Crypsis W. Aiton, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Antitragus Oberwimmer, 1931 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Antonella
     Antonella Astafieva-Urbajtis & Ramovs, 1985 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Parallelodontidae (Family)
     Antonella Cooke & Kondo, 1960 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Antonella J.A. Caro, 1981 accepted as Tridens J.J. Roemer & J.A. Schultes, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Antongila
     Antongila Roewer, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Triaenonychidae (Family)
 Antongila Kiriakoff, 1958 accepted as Exantongila Fletcher in Watson, Fletcher & Nye, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)

Antongilia
 Antongilia H. Jumelle, 1928 accepted as Dypsis Noronha ex C.F.P. Martius, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
     Antongilia Redtenbacher in Brunner & Redtenbacher, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Bacillidae (Family)

Antongilus
     Antongilus Gomy, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
 Antongilus Gomy, 1977 accepted as Bacanius Leconte, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Antonia
     Antonia Loew, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)
     Antonia Stål, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Antonia R. Brown, 1832 accepted as Rhynchoglossum Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
     Antonia Pohl, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Loganiaceae (Family)
 Antonia Signoret, 1872 accepted as Antonina Signoret, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pseudococcidae (Family)

Antoniana
 Antoniana Bubani, 1901 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Antoniana Tussac, 1818 accepted as Faramea Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Antoniella
     Antoniella Kiritshenko, 1938 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Antoniella Soyka, 1950 accepted as Anaphes Haliday, 1833 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Mymaridae (Family)

Antonina
 Antonina Vvedenskiy, 1961 accepted as Clinopodium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Antonina Signoret, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pseudococcidae (Family)

Antrocephalus
     Antrocephalus Lehmann, 1838 (uncertain)· Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Aytoniaceae (Family)
     Antrocephalus Kirby, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chalcididae (Family)

Antroherpon
 Antroherpon Apfelbeck, 1894 accepted as Antroherpon Reitter, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
     Antroherpon Reitter, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
 Antroherpon Ganglbauer, 1899 accepted as Antroherpon Ganglbauer, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)

Antropora
     Antropora Norman, 1903 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Antroporidae (Family)
 Antropora Lang, 1916 accepted as Coelopora Lang, 1917 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Pelmatoporidae (Family)

Antrosphaera
     Antrosphaera Sarjeant, 1961 † · Plantae (Kingdom) > Chlorophyta (Phylum) > (Class) > (Order) > Prasinophytina (awaiting allocation) (Family)
     Antrosphaera He, 1984 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Antunesia
     Antunesia Amaro, 1966 (uncertain)· Chromista (Kingdom) > Bigyra (Phylum) > Opalinea (Class) > Opalinida (Order) > Opalinidae (Family)
     Antunesia O. Hoffmann, 1892 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Anubis
     Anubis Stål, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Anubis Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Anulomyces
     Anulomyces W.W. Bydgosz, 1932 · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
 Anulomyces Wroblewski, 1931 accepted as Anulomyces Wroblewski, 1931 · Bacteria (Kingdom) > Tenericutes (Phylum) > Mollicutes (Class) > Mycoplasmatales (Order) > Mycoplasmataceae (Family)

Anupama
     Anupama K.N.A. Raj, K.P.D. Latha & P. Manimohan, 2019 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Callistosporiaceae (Family)
     Anupama Jonathan, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Anura
 Anura Bellardi, 1873 accepted as Pisanianura Rovereto, 1899 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Pisanianuridae (Family)
 Anura Agassiz, 1846 accepted as Anoura Gray, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Phyllostomidae (Family)
 Anura (S.V. Juzepczuk) O.V. Tscherneva, 1962 accepted as Cousinia Cassini in F. Cuvier, 1827 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Anura Hodgson, 1841 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Anura Duméril, 1805 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > (Family)
 Anura Nicolet, 1847 accepted as Neanura Macgillivray, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Neanuridae (Family)

Anurella
 Anurella Ehrenberg, 1830 accepted as Anurella Ehrenberg, 1830 · Animalia (Kingdom) > Rotifera (Phylum) > Rotifera (awaiting allocation) (Class) > Rotifera (awaiting allocation) (Order) > Rotifera (awaiting allocation) (Family)
 Anurella Lacaze-Duthiers, 1877 accepted as Molgula Forbes in Forbes & Hanley, 1848 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Molgulidae (Family)

Anurophorus
 Anurophorus Nicolet, 1841, nom. nud. accepted as Anurophorus Nicolet, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Entomobryomorpha (Order) > Isotomidae (Family)
     Anurophorus Nicolet, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Entomobryomorpha (Order) > Isotomidae (Family)

Anurophyllina
 Anurophyllina Mesnil in Lindner, 1961 accepted as Anurophyllina Mesnil, 1977 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Anurophyllina Mesnil, 1977 accepted as Prosopofrontina Townsend, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Anurosporidium
 Anurosporidium Guyenot, 1943 accepted as Urosporidium Caullery & Mesnil, 1905 · Chromista (Kingdom) > Cercozoa (Phylum) > Ascetosporea (Class) > Haplosporida (Order) > Urosporidiidae (Family)
     Anurosporidium Caullery & Chappelier, 1906 · Chromista (Kingdom) > Cercozoa (Phylum) > Ascetosporea (Class) > Haplosporida (Order) > Urosporidiidae (Family)

Anytus
 Anytus Grote, 1873 accepted as Sutyna Todd, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Anytus Stål, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Anzia
 Anzia Garovaglio, 1868 accepted as Lichenothelia D. Hawksworth, 1981 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Lichenotheliales (Order) > Lichenotheliaceae (Family)
     Anzia Stizenberger, 1861 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)

Aocnus
     Aocnus Kolenati, 1859 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Aocnus Schoenherr, 1859 accepted as Sibinia Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Aodon
     Aodon Lacepède, 1798 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Myliobatidae (Family)
     Aodon Anonymous, 1798 accepted as Aodon Lacepède, 1798 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Myliobatidae (Family)
 Aodon Lesson, 1828 accepted as Mesoplodon Gervais, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Ziphiidae (Family)

Aonia
     Aonia Johnston, 1838 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
 Aonia de Blainville, 1828 accepted as Aonia de Blainville, 1828 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Nephtyidae (Family)

Aorchis
     Aorchis Barker & Parsons, 1915 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Turbellaria (awaiting allocation) (Order) > Turbellaria (awaiting allocation) (Family)
 Aorchis P. Vermeulen, 1972 accepted as Galearis Rafinesque, 1833(?) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Aoria
     Aoria Baly, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Aoria Ciferri, 1962 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Aoria Jordan, 1919 accepted as Sperata Holly, 1939 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Bagridae (Family)

Aotearoa
 Aotearoa Holleman, 2007 accepted as Okakarus Holleman, 2007 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Callioplanidae (Family)
     Aotearoa Forster & Platnick, 1984 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Mecysmaucheniidae (Family)

Aotus
     Aotus Illiger, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Aotidae (Family)
     Aotus J.E. Smith, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Aotus Humboldt, 1812 accepted as Aotus Illiger, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Aotidae (Family)

Apachea
     Apachea Daugherty, 1941 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Gleicheniales (Order) > Dipteridaceae (Family)
     Apachea Clarke, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Depressariidae (Family)

Apachia
     Apachia Townes, 1969 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Apachia Frederickson, 1949 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Solenopleuridae (Family)

Apaloxylon
 Apaloxylon Drake del Castillo in Grandidier, 1903 accepted as Neoapaloxylon S. Rauschert, 1982 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Apaloxylon Renault, 1892 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cordaitales (Order) > Cordaitales (awaiting allocation) (Family)

Apalus
     Apalus A.P. de Candolle, 1836 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Apalus Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Meloidae (Family)

Apanthuretta
 Apanthuretta Wägele, 1981 accepted as Amakusanthura Nunomura, 1977 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Anthuridae (Family)
     Apanthuretta Wägele, 1981, nom. nud. accepted as Amakusanthura Nunomura, 1977 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Anthuridae (Family)

Aparoprion
 Aparoprion Lacordaire, 1866 accepted as Aparopion Hampe, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Aparoprion Marseul, 1866 accepted as Aparopion Hampe, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Apatele
 Apatele Hübner, 1822 accepted as Acronicta Ochsenheimer, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Apatele Hübner, 1809-1813 accepted as Acronicta Ochsenheimer, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Apatele Hübner, 1806 accepted as Acronicta Ochsenheimer, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Apatelia
     Apatelia Wallengren, 1886 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)
 Apatelia Karsch, 1893 accepted as Lokia Ris, 1919 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Libellulidae (Family)
 Apatelia A.P. de Candolle, 1822 accepted as Saurauia Willdenow, 1801 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Actinidiaceae (Family)
     Apatelia Stein, 1924 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Apatelina
     Apatelina Enderlein, 1936 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Apatelina Martynov, 1936 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)

Apatelus
 Apatelus Mulsant & Rey, 1859 accepted as Isopteron Hope, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Apatelus Schaum in Erichson, 1862 accepted as Scybalicus Schaum, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Apatelus Amaral, 1935 accepted as Bachia Gray, 1845 (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gymnophthalmidae (Family)
     Apatelus Amaral, 1937 accepted as Apatelus Amaral, 1935 (unavailable name)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gymnophthalmidae (Family)

Apatema
     Apatema Reichenow, 1905 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Apatema Walsingham, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Autostichidae (Family)

Apateon
 Apateon Agassiz, 1846 accepted as Apateum Spinola, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Apateon von Meyer, 1844 † · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Temnospondyli (Order) > Branchiosauridae (Family)

Apatidea
     Apatidea McLachlan, 1874 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)
     Apatidea Attems, 1936 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Callipodida (Order) > Caspiopetalidae (Family)

Apatokephalus
     Apatokephalus Brögger, 1897 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Apatokephalus Chugaeva, 1963 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Remopleurididae (Family)

Apator
 Apator Semenov, 1898 accepted as Agabus Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)
 Apator Simpson, 1936 † accepted as Unuchinia Simpson, 1937 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cimolesta (Order) > Apatemyidae (Family)

Apatorhynchus
 Apatorhynchus Heller, 1895 accepted as Peltophorus Schönherr, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Apatorhynchus Desbrochers, 1891 accepted as Peltophorus Schönherr, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Apatorhynchus Friedman & Daeschler, 2006 † · Animalia (Kingdom) > Chordata (Phylum) > Dipnoi (Class) > (Order) > Rhynchodipteridae (Family)

Apatura
 Apatura Laporte de Castelnau & Gory, 1839 accepted as Melanophila Eschscholtz, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Apatura Hübner, 1819 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Apatura Laporte & Gory, 1838 accepted as Paraphrixia Saunders, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Apatura Fabricius, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Apaturia
 Apaturia J. Lindley, 1831 accepted as Pachystoma Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Apaturia Sodovsky, 1837 accepted as Apatura Fabricius, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Apectodinium
     Apectodinium (L.I. Costa & C. Downie, 1976) J.K. Lentin & G.L. Williams, 1977 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Peridiniaceae (Family)
 Apectodinium L.I. Costa & C. Downie, 1976 † accepted as Apectodinium (L.I. Costa & C. Downie, 1976) J.K. Lentin & G.L. Williams, 1977 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Peridiniaceae (Family)

Apelma
 Apelma Billberg, 1820 accepted as Macroplea Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Apelma Kieffer, 1917 accepted as Forcipomyia Meigen, 1818 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ceratopogonidae (Family)

Apelta
 Apelta accepted as Aspelta Harring & Myers, 1928 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Dicranophoridae (Family)
 Apelta Montrouzier, 1864 accepted as Arthrolips Wollaston, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Corylophidae (Family)

Apeltes
     Apeltes DeKay, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gasterosteiformes (Order) > Gasterosteidae (Family)
 Apeltes Lilljeborg, 1861 accepted as Clistosaccus Lilljeborg, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Akentrogonida (Order) > Clistosaccidae (Family)

Apeltosperchon
     Apeltosperchon Besch, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Sperchontidae (Family)
     Apeltosperchon Besch, 1963 accepted as Apeltosperchon Besch, 1964 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Sperchontidae (Family)

Apemon
     Apemon Johannsen, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Keroplatidae (Family)
 Apemon Rafinesque, 1837 accepted as Datura Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)

Aper
 Aper Lacepède, 1803 accepted as Aper Lacepède, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Scaridae (Family)
 Aper Pallas, 1766 accepted as Phacochoerus F. Cuvier, 1826 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Suidae (Family)

Apera
     Apera Heynemann, 1885 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Chlamydephoridae (Family)
 Apera Ameghino, 1886 † accepted as Eutemnodus Bravard, 1858 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Sparassodonta (Order) > Borhyaenidae (Family)
     Apera Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Aphaenops
 Aphaenops Ganglbauer, 1892 accepted as Aphaenopsis Müller, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Aphaenops de Bonvouloir, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Aphaenoserica
     Aphaenoserica Brenske, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Aphaenoserica Dalla Torre in Schenkling, 1912 accepted as Aphaenoserica Brenske, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Aphana
     Aphana Stål, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Eurybrachidae (Family)
 Aphana Burmeister, 1835 accepted as Aphana Burmeister, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Aphanacanthus
     Aphanacanthus Troschel (ex Bibron), 1856 accepted as Aphanacanthus Troschel (ex Bibron), 1856 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Tetraodontidae (Family)
 Aphanacanthus Le Danois, 1959 accepted as Tetractenos Hardy, 1983 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Tetraodontidae (Family)

Aphanamixis
     Aphanamixis Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Meliaceae (Family)
 Aphanamixis Pierre, 1897 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Meliaceae (Family)

Aphananthe
 Aphananthe Link, 1821 accepted as Aphananthe Link, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Phytolaccaceae (Family)
     Aphananthe J.E. Planchon, 1848 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Cannabaceae (Family)

Aphanasium
     Aphanasium Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Aphanasium Thomson, 1860 accepted as Aphanasium Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aphanes
 Aphanes Burmeister, 1835 accepted as Aphanes Burmeister, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Aphanes Linnaeus, 1753 accepted as Alchemilla Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)

Aphanesthes
 Aphanesthes Kolbe, 1892 accepted as Aphanochroa Kolbe, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Aphanesthes Kraatz, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Aphania
 Aphania Tryon, 1884 † accepted as Aphanaia Koninck, 1878 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myalinida (Order) > Kolymiidae (Family)
 Aphania Blume, 1825 accepted as Lepisanthes Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
     Aphania Hübner, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Aphaniotis
     Aphaniotis Peters, 1864 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Agamidae (Family)
 Aphaniotis Barbour, 1912 accepted as Lechriodus Boulenger, 1882 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Limnodynastidae (Family)

Aphanius
     Aphanius Nardo, 1827, nom. nud. accepted as Aphanius Nardo, 1827 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cyprinodontiformes (Order) > Aphaniidae (Family)
     Aphanius Nardo, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cyprinodontiformes (Order) > Aphaniidae (Family)

Aphanobothrium
     Aphanobothrium Seurat in Herdman, 1906 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)
 Aphanobothrium Linstow, 1906 accepted as Amabilia Diamare, 1893 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Amabiliidae (Family)

Aphanodictyon
     Aphanodictyon Huneycutt ex M.W. Dick, 1971 · Chromista (Kingdom) > Pseudofungi (Phylum) > Oomycetes (Class) > Leptomitales (Order) > Leptolegniellaceae (Family)
 Aphanodictyon Huneycutt, 1948 accepted as Aphanodictyon Huneycutt ex M.W. Dick, 1971 · Chromista (Kingdom) > Pseudofungi (Phylum) > Oomycetes (Class) > Leptomitales (Order) > Leptolegniellaceae (Family)

Aphanopeltis
 Aphanopeltis Mabille, 1887 accepted as Acraea Fabricius, 1808 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Aphanopeltis H. Sydow, 1927 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Asterinales (Order) > Asterinaceae (Family)

Aphanophora
     Aphanophora M. Réblová & W.A. Untereiner in Réblová, Untereiner & Réblová, 2013 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Chaetothyriales (Order) > Chaetothyriaceae (Family)
 Aphanophora accepted as Aphanopora de Meijere, 1903 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Cassiduloida (Order) > Neolampadidae (Family)

Aphanosperma
     Aphanosperma T.F. Daniel, 1988 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
     Aphanosperma Britton, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aphanostelma
 Aphanostelma Schlechter in A.A.H. Léveillé, 1914-1915 accepted as Metaplexis R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Aphanostelma Malme, 1933 accepted as Melinia Decaisne in Alph. de Candolle, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Aphanta
     Aphanta E.M. Tronchin & D.W. Freshwater, 2007 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gelidiales (Order) > Orthogonacladiaceae (Family)
     Aphanta Förster, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Aphanurus
     Aphanurus Kieffer in André, 1912 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)
     Aphanurus Looss, 1907 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Azygiida (Order) > Hemiuridae (Family)

Aphanus
     Aphanus Laporte, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Rhyparochromidae (Family)
     Aphanus Gistl, 1837 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)

Aphaobiella
     Aphaobiella Guéorguiev, 1976 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
     Aphaobiella Pretner, 1949 accepted as Aphaobiella Guéorguiev, 1976 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)

Aphaobius
 Aphaobius Seidlitz, 1887 accepted as Aphaonus Reitter, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Aphaobius Abeille de Perrin, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)

Aphareus
     Aphareus Cuvier in Cuvier & Valenciennes, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Lutjanidae (Family)
 Aphareus Paul'son, 1875 accepted as Sicyonella Borradaile, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Sergestidae (Family)

Apharia
 Apharia Reitter, 1881 accepted as Scotocryptus Girard, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
     Apharia Bonorden, 1864 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Aphasganophora
     Aphasganophora Nikol'skaya, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chalcididae (Family)
     Aphasganophora Masi, 1942 accepted as Aphasganophora Masi, 1942 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Apheles
     Apheles Blessig, 1872 accepted as Distenia Lepeletier & Serville, 1828 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Apheles Pic, 1933 accepted as Apheles Pic, 1933 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Aphelia
     Aphelia Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Aphelia Stephens, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Aphelia R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Restionaceae (Family)
 Aphelia Westwood, 1849 accepted as Pseudaphelia Kirby, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)

Aphelocheira
 Aphelocheira Fieber, 1851 accepted as Aphelocheirus Westwood, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphelocheiridae (Family)
 Aphelocheira Stephens, 1836 accepted as Aphelocheira Stephens, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Hydropsychidae (Family)

Aphelochira
 Aphelochira Agassiz, 1846 accepted as Aphelochira Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Hydropsychidae (Family)
 Aphelochira Fieber, 1851 accepted as Aphelocheirus Westwood, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphelocheiridae (Family)

Aphelocythere
     Aphelocythere Triebel & Klingler, 1959 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Eucytheridae (Family)
 Aphelocythere Hobbs & Peters, 1977 accepted as Waltoncythere Hobbs & Peters, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Entocytheridae (Family)

Aphelogaster
     Aphelogaster Kolbe, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Aphelogaster Aldrich, 1934 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Aphelomera
 Aphelomera Skuse, 1888 accepted as Neoaphelomera Miller, 1945 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Mycetophilidae (Family)
     Aphelomera Stephens, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Aphies
     Aphies Duponchel & Chevrolat in D'Orbigny, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Aphies Dejean, 1835 accepted as Aphies Duponchel & Chevrolat in D'Orbigny, 1841 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aphioides
     Aphioides Passerini, 1860 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Aphioides Rondani, 1847 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Aphlebia
 Aphlebia Brunner von Wattenwyl, 1865 accepted as Phyllodromica Fieber, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Ectobiidae (Family)
     Aphlebia K.B. Presl in Sternberg, 1838 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)

Aphlebina
 Aphlebina Claparède, 1864 accepted as Polycirrus Grube, 1850 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)
     Aphlebina Grube, 1850 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)

Aphobus
 Aphobus Cabanis in Cabanis & Heine, 1851 accepted as Gnorimopsar Richmond, 1908 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Icteridae (Family)
 Aphobus Gistel, 1848 accepted as Trachidermus Heckel, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Cottidae (Family)

Aphodius
     Aphodius Illiger in Kugelann, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Aphodius Fabricius, 1833 accepted as Aphodius Illiger in Kugelann, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Aphonogryllus
     Aphonogryllus Perkins, 1899 accepted as Aphonomorphus Rehn, 1903 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Oecanthidae (Family)
 Aphonogryllus Rehn, 1901 accepted as Aphonomorphus Rehn, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Oecanthidae (Family)

Aphonus
     Aphonus Leconte, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Aphonus Saussure, 1874 accepted as Aphonogryllus Perkins, 1899 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Oecanthidae (Family)

Aphora
 Aphora T. Nuttall, 1835 accepted as Ditaxis Vahl ex A.H.L. Jussieu, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Aphora Necker ex O. Kuntze, 1891 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Aphotistus
 Aphotistus Humboldt, 1793 accepted as Armillaria (E.M. Fries) Staude, 1857 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Physalacriaceae (Family)
 Aphotistus Kirby, 1837 accepted as Selatosomus Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Aphractia
     Aphractia Artigas, Papavero & Serra, 1991 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Aphractia Kirby, 1899 accepted as Acanthoproctus Karsch, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Aphractus
     Aphractus Redtenbacher in Brunner v. Wattenwyl, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Aphractus Shimanskii, 1967 † accepted as Nautilaphractus Ceccolini & Cianferoni, 2023 † (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Oncocerida (Order) > Rutoceratidae (Family)

Aphragmia
 Aphragmia Trevisan, 1880 accepted as Ionaspis Th. Fries, 1871 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Hymeneliaceae (Family)
 Aphragmia C.G.D. Nees in J. Lindley, 1836 accepted as Ruellia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Aphragmus
     Aphragmus Andrzeiowski ex A.P. de Candolle, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Aphragmus Cooper, 1983 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratulina incertae sedis (Family)

Aphrastus
 Aphrastus Schoenherr, 1833 accepted as Aphrastus Say, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Aphrastus Say, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Aphritis
     Aphritis Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
 Aphritis Valenciennes in Cuvier & Valenciennes, 1832 accepted as Pseudaphritis Castelnau, 1872 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Pseudaphritidae (Family)

Aphrodita
 Aphrodita Leach in Sowerby, 1839 accepted as Aphrodita Leach in Sowerby, 1839 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Aphrodita Linnaeus, 1758 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Aphroditidae (Family)

Aphrodite
 Aphrodite Leske, 1775 accepted as Aphrodita Linnaeus, 1758 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Aphroditidae (Family)
 Aphrodite Lea, 1834 accepted as Serripes Gould, 1841 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Cardiidae (Family)
 Aphrodite Lendenfeld, 1886 accepted as Hippospongia Schulze, 1879 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Dictyoceratida (Order) > Spongiidae (Family)
 Aphrodite [auctt.] accepted as Aphrodita Linnaeus, 1758 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Aphroditidae (Family)
     Aphrodite Hübner, 1819 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Aphrodite Link, 1807 accepted as Aphrodita Linnaeus, 1758 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Aphroditidae (Family)

Aphroditella
 Aphroditella Roule, 1898 accepted as Aphrodita Linnaeus, 1758 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Aphroditidae (Family)
     Aphroditella Lendenfeld, 1887 accepted as Aphroditella Lendenfeld, 1887 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Aphthona
 Aphthona Foudras, 1860 accepted as Aphthona Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Aphthona Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Aphyllum
 Aphyllum Unger in R. Richter & Unger, 1856 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Aphyllum Soshkina, 1937 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Tryplasmatidae (Family)
 Aphyllum Artis, 1825 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Lycopodiopsida (awaiting allocation) (Order) > Lycopodiopsida (awaiting allocation) (Family)

Aphysa
 Aphysa Theissen & H. Sydow, 1917 accepted as Coleroa Rabenhorst, 1850 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Venturiales (Order) > Venturiaceae (Family)
     Aphysa Handschin, 1925 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > (Order) > Collembola (awaiting allocation) (Family)

Apiaria
     Apiaria Germar in Münster, 1842 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Apiaria Germar, 1839 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Apiastrum
     Apiastrum Nuttall in Torrey & A. Gray, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Apiastrum Moore & Jeffords, 1968 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)

Apicaria
 Apicaria Wenz, 1940 † accepted as Apicaria Wenz, 1940 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Apicaria Kutassy, 1937 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)

Apicula
     Apicula Olsson & Harbison, 1953 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Apicula Rafinesque, 1814 accepted as Apis Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
 Apicula Rafinesque, 1814 [2] accepted as Apion Herbst in Jablonsky, 1797 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Apidium
     Apidium Osborn, 1908 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Parapithecidae (Family)
     Apidium E. Stolley, 1896 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Cyclocrinales (Order) > Apidiaceae (Family)

Apilia
     Apilia Malloch, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Apilia C.S. Rafinesque, 1838 accepted as Fraxinus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Oleaceae (Family)

Apilocera
     Apilocera Gemminger & Harold, 1873 accepted as Apilocera Chevrolat, 1862 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Apilocera Chevrolat, 1862 accepted as Apelocera Chevrolat, 1862 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Apimela
 Apimela Mulsant & Rey, 1874 accepted as Apimela Mulsant & Rey, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Apimela Mulsant & Rey, 1875 [2] accepted as Apimela Mulsant & Rey, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Apimela Mulsant & Rey, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Apimela Mulsant & Rey, 1875 accepted as Apimela Mulsant & Rey, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Apinella
 Apinella B. Granier, F. Michaud & E. Fourcade, 1986 † accepted as Apianella B. Granier & F. Michaud, 2021 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Triploporellaceae (Family)
     Apinella Necker ex Rafinesque, 1840 accepted as Trinia G.F. Hoffmann, 1814 (junior objective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Apiocephalus
     Apiocephalus Gahan, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Apiocephalus Luo & Hu in Luo, Hu, Chen, Zhang & Tao, 1999 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > (Class) > Trilobitomorpha (awaiting allocation) (Order) > Trilobitomorpha (awaiting allocation) (Family)
 Apiocephalus Chevrolat, 1882 accepted as Aphiocephalus Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Apiochloris
     Apiochloris Pascher, 1930 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Dunaliellaceae (Family)
 Apiochloris Düringer, 1958 accepted as Chlorapion Bourrelly, 1959 · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Pleurochloridaceae (Family)

Apiococcus
     Apiococcus Hempel, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Eriococcidae (Family)
     Apiococcus Korshikov, 1926 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Palmellopsidaceae (Family)

Apiocystis
     Apiocystis Nägeli, 1849 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Tetrasporaceae (Family)
     Apiocystis Bather, 1889 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Apioderella
     Apioderella Csiki, 1932 accepted as Apioderella Csiki, 1932 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Apioderella Liebke, 1937 accepted as Colliuris de Geer, 1774 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Apioderina
     Apioderina Csiki, 1932 accepted as Apioderina Csiki, 1932 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Apioderina Liebke, 1937 accepted as Colliuris de Geer, 1774 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Apiomerus
     Apiomerus Hahn, 1831 accepted as Apiomerus Laporte, 1832 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)
     Apiomerus Laporte, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)

Apiomorphilus
 Apiomorphilus Legalov, 2023 accepted as Apiomorphus Wagner, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Apiomorphilus Voss, 1931 accepted as Apiomorphilus Legalov, 2023 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Apiomorphilus Legalov, 2018 accepted as Apiomorphilus Legalov, 2023 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Apiosoma
     Apiosoma Blanchard, 1885 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Peritrichida (Order) > Epistylididae (Family)
     Apiosoma Wandolleck, 1895 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Apiosporella
 Apiosporella F. von Höhnel ex Theissen, 1917 accepted as Pseudomassaria Jaczewski, 1894 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Xylariales (Order) > Hyponectriaceae (Family)
 Apiosporella Spegazzini, 1910 accepted as Apiocarpella H. Sydow & P. Sydow, 1919 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Apiosporella Spegazzini, 1912 accepted as Asteromella Passerini & Thümen, 1880 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Dothideomycetes incertae sedis (Family)

Apiosporina
 Apiosporina Petrak, 1925 accepted as Pseudomassaria Jaczewski, 1894 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Xylariales (Order) > Hyponectriaceae (Family)
     Apiosporina F. von Höhnel, 1910 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Venturiales (Order) > Venturiaceae (Family)

Apiostoma
     Apiostoma Nikolsky, 1897 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Apiostoma Martens, 1869 accepted as Apiostoma Martens, 1869 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)

Apiotarsus
     Apiotarsus Brunner de Wattenwyl, 1873 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Apiotarsus Saussure, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Gryllidae (Family)

Apista
 Apista Blume, 1825 accepted as Podochilus Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Apista Hübner, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Apista Smith, 1861 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Apistes
     Apistes Fischer, 1823 accepted as Apistes Fischer, 1823 (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Apistes Cuvier in Cuvier & Valenciennes, 1829 accepted as Apistus Cuvier in Cuvier & Valenciennes, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Apistidae (Family)
     Apistes Seyrig, 1927 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Apistus
 Apistus Agassiz, 1846 [3] accepted as Rhopalocerus Redtenbacher, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Apistus Agassiz, 1846 accepted as Apistis Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Apistus Cuvier in Cuvier & Valenciennes, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Apistidae (Family)
 Apistus Agassiz, 1846 [2] accepted as Apistosia Hübner, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Apium
 Apium Agassiz, 1846 accepted as Apion Herbst in Jablonsky, 1797 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Apium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Apius
 Apius Billberg, 1820 accepted as Apion Herbst in Jablonsky, 1797 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Apius Panzer, 1806 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Aplagiognathus
     Aplagiognathus Duwal, Yasunaga & Lee, 2010 accepted as Kmentophylus Duwal, Yasunaga & Lee, 2010 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
     Aplagiognathus Thomson, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aplanodes
     Aplanodes W. Marais, 1966 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Aplanodes Fennah, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Delphacidae (Family)

Aplasta
     Aplasta Schaum, 1845 accepted as Tephraea Burmeister, 1842 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Aplasta Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Aplastus
     Aplastus Dejean, 1821 accepted as Omias Germar, 1817 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Aplastus Gistl, 1848 accepted as Aplastus Leconte, 1859 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Aplastus Leconte, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Aplax
 Aplax Thomson, 1878 accepted as Polybothris Dupont, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Aplax von Meyer, 1843 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Aplecta
 Aplecta Railliet & Henry, 1916 accepted as Aplectana Railliet, 1916 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Cosmocercidae (Family)
 Aplecta Herrmannsen, 1846 accepted as Aplexa Fleming, 1820 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Physidae (Family)
     Aplecta Guenée, 1838 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Aplectrum
     Aplectrum (T. Nuttall) J. Torrey, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Aplectrum Blume, 1831 accepted as Diplectria H.G.L. Reichenbach, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Aplectrus
     Aplectrus Dejean, 1835 accepted as Aplectrus Duponchel & Chevrolat in D'Orbigny, 1841 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Aplectrus Duponchel & Chevrolat in D'Orbigny, 1841 accepted as Agallissus Dalman, 1823 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Apleurotis
     Apleurotis Rafinesque, 1818 accepted as Apleurotis Rafinesque, 1818 (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Apleurotis Rafinesque, 1819 (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)

Aplocentrus
 Aplocentrus Leconte, 1847 accepted as Anisodactylus Dejean, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Aplocentrus Rafinesque, 1819 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Percidae (Family)

Aplocera
     Aplocera Stephens, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Aplocera C.S. Rafinesque, 1830 accepted as Ctenium Panzer, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Aplocerus
     Aplocerus Rafinesque, 1815 accepted as Aplocerus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Animalia (awaiting allocation) (Phylum) > Animalia (awaiting allocation) (Class) > Animalia (awaiting allocation) (Order) > Animalia (awaiting allocation) (Family)
 Aplocerus Smith, 1827 accepted as Oreamnos Rafinesque, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Aplodinotus
     Aplodinotus Rafinesque, 1818 accepted as Aplodinotus Rafinesque, 1819 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sciaenidae (Family)
     Aplodinotus Rafinesque, 1819 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sciaenidae (Family)

Aplodon
     Aplodon R. Brown, 1823 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Splachnales (Order) > Splachnaceae (Family)
     Aplodon Rafinesque, 1818 accepted as Aplodon Rafinesque, 1818 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Aplodon Thominot, 1883 accepted as Girella Gray, 1835 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Kyphosidae (Family)
 Aplodon Rafinesque, 1819 accepted as Modulus Gray, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Modulidae (Family)
     Aplodon Spix, 1827 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Aplolampas
     Aplolampas Lambert, 1906 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Aplolampas Gray, 1825 † accepted as Echinolampas Gray, 1825 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Cassiduloida (Order) > Echinolampadidae (Family)

Aplonycha
     Aplonycha Dejean, 1833 accepted as Aplonycha Boisduval, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Aplonycha Boisduval, 1835 accepted as Colpochila Erichson, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Aplophyllum
 Aplophyllum A.H.L. Jussieu, 1825 accepted as Aplophyllum A.H.L. Jussieu, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Aplophyllum Cassini in F. Cuvier, 1824 accepted as Aplophyllum Cassini in F. Cuvier, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Aplopus
     Aplopus Dejean, 1821 accepted as Grypus Germar, 1817 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
     Aplopus Gray, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Phasmatidae (Family)

Aplora
     Aplora Rafinesque, 1819 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Aplora Rafinesque, 1818 accepted as Aplora Rafinesque, 1818 (nomen nudum)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Aplosonyx
 Aplosonyx Chevrolat in D'Orbigny, 1842 accepted as Aplosonyx Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Aplosonyx Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Aplosporidium
 Aplosporidium Caullery & Mesnil, 1899 accepted as Haplosporidium Caullery & Mesnil, 1899 · Chromista (Kingdom) > Cercozoa (Phylum) > Ascetosporea (Class) > Haplosporida (Order) > Haplosporidiidae (Family)
 Aplosporidium Spegazzini, 1912 accepted as Asteromella Passerini & Thümen, 1880 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Dothideomycetes incertae sedis (Family)

Aplostoma
 Aplostoma Canu, 1886 accepted as Haplostoma Canu, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Botryllophilidae (Family)
     Aplostoma Moquin-Tandon, 1856 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Aplotarsus
     Aplotarsus Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Aplotarsus Curtis, 1854 accepted as Fleutiauxellus Méquignon, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Aplotes
     Aplotes Herrich-Schaffer, 1853 accepted as Metriotes Herrich-Schäffer, 1853 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Coleophoridae (Family)
     Aplotes Chevrolat, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Aplousina
     Aplousina Canu & Bassler, 1927 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Calloporidae (Family)
     Aplousina Canu & Lecointre, 1925 accepted as Aplousina Canu & Bassler, 1927 (nomen nudum)· Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Flustridae (Family)

Apluda
     Apluda Wallengren, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Limacodidae (Family)
     Apluda Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Aplysia
     Aplysia Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Anaspidea (Order) > Aplysiidae (Family)
 Aplysia Nardo, 1833 accepted as Aplysina Nardo, 1834 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Verongiida (Order) > Aplysinidae (Family)

Aplysiopsis
     Aplysiopsis Deshayes, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sacoglossa (Order) > Hermaeidae (Family)
     Aplysiopsis Bergh, 1898 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Apneuma
     Apneuma Quatrefages, 1865 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)
 Apneuma Stossich, 1882 accepted as Apneuma Stossich, 1882 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)

Apocalypsis
     Apocalypsis Butler, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)
     Apocalypsis Bochkov, 2010 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Myocoptidae (Family)

Apocopis
     Apocopis C.G.D. Nees, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Apocopis Billberg, 1820 accepted as Apocopis Billberg, 1820 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Apocremnus
 Apocremnus Fieber, 1858 accepted as Psallus Fieber, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
 Apocremnus A. Milne-Edwards, 1878 accepted as Aepinus Rathbun, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Majidae (Family)

Apocryptes
     Apocryptes Valenciennes in Cuvier & Valenciennes, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gobiidae (Family)
 Apocryptes Osbeck, 1758 accepted as · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gobiidae (Family)

Apocryptus
 Apocryptus Chevrolat, 1841 accepted as Apocyrtus Erichson, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Apocryptus Uchida, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Apodasmia
     Apodasmia Turner, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Apodasmia B.G. Briggs & L.A.S. Johnson, 1998 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Restionaceae (Family)

Apodemus
     Apodemus Fåhraeus, 1870 accepted as Anomalipus Guérin-Méneville, 1831 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Apodemus Kaup, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)

Apodium
 Apodium Rafinesque, 1814 accepted as Apus Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Apodidae (Family)
 Apodium Rafinesque, 1814 [2] accepted as Apion Herbst in Jablonsky, 1797 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Apodopsyllus
     Apodopsyllus Huys, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Paramesochridae (Family)
 Apodopsyllus Kunz, 1962 accepted as Apodopsyllus Huys, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Paramesochridae (Family)

Apoecia
 Apoecia Blanchard, 1842 accepted as Apoica Lepeletier de St Fargeau, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)
     Apoecia Kato, 1897 accepted as Apoecia Kato, 1897 (nomen nudum)· Animalia (Kingdom) > Rotifera (Phylum) > Rotifera (awaiting allocation) (Class) > Rotifera (awaiting allocation) (Order) > Rotifera (awaiting allocation) (Family)

Apogon
     Apogon Rondani, 1856 accepted as Alasion Rondani, 1857 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ceratopogonidae (Family)
     Apogon Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Apogonidae (Family)
     Apogon S. Elliott, 1823 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Apogon Perris, 1852 accepted as Vermileo Macquart, 1834 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Vermileonidae (Family)
 Apogon E.G. von Steudel, 1840 accepted as Chloris O. Swartz, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Apogonia
 Apogonia Melichar, 1926 accepted as Apogonalia Evans, 1947 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Apogonia Cressey & Cressey, 1990 accepted as Cresseyella Bezděk & Cressey, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Caligidae (Family)
     Apogonia Kirby, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Apogonia (Nuttall) E.P.N. Fournier, 1886 accepted as Mnesithea Kunth, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Apogonoides
     Apogonoides Arambourg, 1927 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Perciformes (awaiting allocation) (Family)
     Apogonoides Bleeker, 1849 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Apogonidae (Family)

Apoia
 Apoia E.D. Merrill, 1921 accepted as Sarcosperma J.D. Hooker in Bentham & J.D. Hooker, 1876 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)
     Apoia Hachisuka, 1930 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Apolectus
 Apolectus Cuvier in Cuvier & Valenciennes, 1832 accepted as Parastromateus Bleeker, 1864 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
 Apolectus Bennett, 1832 accepted as Scomberomorus Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Scombridae (Family)

Apolemichthys
     Apolemichthys Burton, 1934 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Pomacanthidae (Family)
     Apolemichthys Fraser-Brunner, 1933 accepted as Apolemichthys Burton, 1934 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Pomacanthidae (Family)

Apolites
     Apolites Sundevall, 1835 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Apolites Jacquelin Du Val, 1861 accepted as Idastrandiella Strand, 1929 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Apollo
     Apollo Holzinger & Löcker, 2023 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cixiidae (Family)
 Apollo Schinz in Cuvier, 1822 accepted as Apollon Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ranellidae (Family)

Apolorryia
     Apolorryia André, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tydeidae (Family)
     Apolorryia André, 1979 accepted as Apolorryia André, 1980 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tydeidae (Family)

Apoma
 Apoma Berio, 1981 accepted as Anapoma Berio, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Apoma Beck, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Urocoptidae (Family)

Apomecyna
     Apomecyna Dejean, 1821 accepted as Apomecyna Audinet-Serville, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Apomecyna Audinet-Serville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Apomecyna Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Apomecynoides
     Apomecynoides Breuning, 1950 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Apomecynoides Aurivillius, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Apona
 Apona Adanson, 1763 accepted as Lemanea Bory de Saint-Vincent, 1808 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Batrachospermales (Order) > Batrachospermaceae (Family)
     Apona Walker, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Eupterotidae (Family)

Aponogeton
 Aponogeton J. Hill, 1756 accepted as Zannichellia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Potamogetonaceae (Family)
     Aponogeton Linnaeus f., 1782 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Aponogetonaceae (Family)

Aponomma
     Aponomma Lahille, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Acari (awaiting allocation) (Order) > Acari (awaiting allocation) (Family)
 Aponomma Neumann, 1899 accepted as Amblyomma Koch, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Ixodidae (Family)

Apopempsis
     Apopempsis Brodkorb, 1971 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Cuculiformes (Order) > Cuculiformes (awaiting allocation) (Family)
     Apopempsis Schenkling, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)

Apophylia
     Apophylia Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Apophylia Chevrolat, 1842 accepted as Apophylia Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Apophylia Chevrolat in Dejean, 1836 accepted as Apophylia Thomson, 1858 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Apoprionospio
 Apoprionospio [auctorum] accepted as Prionospio Malmgren, 1867 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Spionida (Order) > Spionidae (Family)
 Apoprionospio Foster, 1969 accepted as Prionospio Malmgren, 1867 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Spionida (Order) > Spionidae (Family)

Apopronematus
     Apopronematus André, 1979 accepted as Apopronematus André, 1980 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tydeidae (Family)
     Apopronematus André, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tydeidae (Family)

Apora
     Apora Brunner in Brunner & Redtenbacher, 1907 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Diapheromeridae (Family)
 Apora Gunnerus, 1768 accepted as Phymatolithon Foslie, 1898 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Hapalidiales (Order) > Hapalidiaceae (Family)
 Apora Ginezinskaya, 1944 accepted as Gastrotaenia Wolffhügel, 1938 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Aporidea (Order) > Nematoparataeniidae (Family)

Aporella
 Aporella H. Sydow, 1939 accepted as Aporellula B.C. Sutton, 1986 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Aporella J. Podpera, 1922 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Funariales (Order) > Ephemeraceae (Family)

Aporema
     Aporema Scudder, 1890 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Aporema Dall, 1903 accepted as Panacca Dall, 1905 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pholadomyoida (Order) > Parilimyidae (Family)
     Aporema Becker, 1925 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)

Aporhina
     Aporhina Dejean, 1834 accepted as Aporhina Boisduval in d'Urville, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Aporhina Boisduval in d'Urville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Aporia
     Aporia Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)
 Aporia Macquart, 1846 accepted as Uramya Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Aporia Duby, 1862 accepted as Lophodermium Chevallier, 1826 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Rhytismatales (Order) > Rhytismataceae (Family)
 Aporia Wesmael, 1852 accepted as Mimesa Shuckard, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Crabronidae (Family)

Aporina
     Aporina Fuhrmann, 1902 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Anoplocephalidae (Family)
 Aporina Gussakovskiĭ, 1937 accepted as Mimesa Shuckard, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Crabronidae (Family)
 Aporina Zimmerman, 1994 accepted as Aporhina Boisduval in d'Urville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Aporodes
 Aporodes (F.R.R. Schlechter) W. Suarez & J.E. Cootes, 2008 accepted as Eria J. Lindley, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Aporodes Guenée, 1854 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Aporodes (F.R.R. Schlechter) W. Suarez & J.E. Cootes, 2007 accepted as Eria J. Lindley, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Aporodesmus
     Aporodesmus Pocock, 1895 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)
     Aporodesmus Porat, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)

Aporophyllum
     Aporophyllum D.R. Hunt in Willis, 1966 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)
 Aporophyllum H. Johnson, 1955 accepted as Aporophyllum D.R. Hunt in Willis, 1966 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)
     Aporophyllum H. Johnson ex G.D. Rowley, 1982 accepted as Aporophyllum D.R. Hunt in Willis, 1966 (junior subjective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)

Aporosa
     Aporosa Macquart, 1838 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Aporosa Blume, 1825-1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)

Aporosyllis
     Aporosyllis Quatrefages, 1865 accepted as Aporosyllis Quatrefages, 1865 (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Syllidae (Family)
 Aporosyllis Quatrefages, 1866 accepted as Syllis Savigny in Lamarck, 1818 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Syllidae (Family)

Aporus
 Aporus Fåhraeus, 1872 accepted as Dissaporus Aurivillius, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Aporus Lefèvre, 1884 accepted as Prionodera Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Aporus Spinola, 1808 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Aporus Singer, 1936 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Strophariaceae (Family)

Aposphaeria
 Aposphaeria M.J. Berkeley, 1860 accepted as Aposphaeria M.J. Berkeley, 1860 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Aposphaeria P.A. Saccardo, 1880 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Melanommataceae (Family)

Apostasis
     Apostasis Gorjanovic-Kramberger, 1891 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Apostasis Lendenfeld, 1885 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Apostates
     Apostates N.S. Lander, 1989 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Apostates Warren, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Apotetranychus
 Apotetranychus Oudemans, 1931 accepted as Eotetranychus Oudemans, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tetranychidae (Family)
     Apotetranychus Zacher, 1933 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Apothrips
 Apothrips Bhatti, 1967 accepted as Trichromothrips Priesner, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Thripidae (Family)
 Apothrips Dyadechko, 1964 accepted as Aptinothrips Haliday, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Thripidae (Family)

Apotomoderes
 Apotomoderes Schönherr, 1840 accepted as Apotomoderes Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Apotomoderes Dejean, 1834 accepted as Apotomoderes Dejean, 1834 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Apotomorrhinus
 Apotomorrhinus Gemminger & Harold, 1871 accepted as Apotomorhinus Schönherr, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Apotomorrhinus Morimoto & Yoshihara, 1996 accepted as Apotomorhinus Schönherr, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Apotomus
 Apotomus Schönherr, 1834 accepted as Apotomoderes Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Apotomus Agassiz, 1846 accepted as Apotomis Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Apotomus Illiger, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Apotomus Kirby, 1837 accepted as Pterocolus Say, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Apotriophtydeus
     Apotriophtydeus André, 1979 accepted as Apotriophtydeus André, 1980 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Trombidiformes (Order) > Edbakerellidae (Family)
     Apotriophtydeus André, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Trombidiformes (Order) > Edbakerellidae (Family)

Appelia
     Appelia Börner, 1930 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Appelia (P.A. Saccardo) Trotter, 1931 accepted as Trichoconis F.E. Clements, 1909 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Appendicisporites
 Appendicisporites S.I. Saad & G. Ghazaly, 1976 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Appendicisporites H. Weyland & W. Krieger, 1953 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Appendicula
     Appendicula Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Appendicula Bartsch, 1915 accepted as Appendicularia Fol, 1874 · Animalia (Kingdom) > Chordata (Phylum) > Appendicularia (Class) > Copelata (Order) > Fritillariidae (Family)

Appendicularia
 Appendicularia Chamisso & Eysenhardt, 1821 accepted as Oikopleura Mertens, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Appendicularia (Class) > Copelata (Order) > Oikopleuridae (Family)
     Appendicularia Fol, 1874 · Animalia (Kingdom) > Chordata (Phylum) > Appendicularia (Class) > Copelata (Order) > Fritillariidae (Family)
     Appendicularia Lahille, 1890 · Animalia (Kingdom) > Chordata (Phylum) > Appendicularia (Class) > (Order) > (Family)
 Appendicularia C.H. Peck, 1885 accepted as Stigmatomyces H. Karsten, 1869 · Fungi (Kingdom) > Ascomycota (Phylum) > Laboulbeniomycetes (Class) > Laboulbeniales (Order) > Laboulbeniaceae (Family)
     Appendicularia A.P. de Candolle, 1828 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Appeninocodium
 Appeninocodium O. Dragastan, 1985 † accepted as Appeninocodium O. Dragastan ex E.A. Molinari-Novoa & M.D. Guiry, 2021 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Codiaceae (Family)
     Appeninocodium O. Dragastan ex E.A. Molinari-Novoa & M.D. Guiry, 2021 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Codiaceae (Family)

Appia
     Appia Evans, 1955 accepted as Pompeius Evans, 1955 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
     Appia Schapovalova, 1974 † · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Acrescentida (Order) > Tungussidae (Family)

Appias
 Appias Paetel, 1875 accepted as Appias Paetel, 1875 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Appias Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)

Appletonara
     Appletonara H. Griffits & J.M.H. Shaw, 2007 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Appletonara J.M.H. Shaw, 2008 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Aprion
     Aprion Audinet-Serville, 1838 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Aprion Müller & Henle, 1839 accepted as Carcharhinus Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Carcharhiniformes (Order) > Carcharhinidae (Family)
     Aprion Valenciennes in Cuvier & Valenciennes, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Lutjanidae (Family)

Apriona
     Apriona Chevrolat, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Apriona Kieffer, 1895 accepted as Aprionus Kieffer, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Aprionus
 Aprionus Okada & Carson, 1983 accepted as Zaprionus Coquillett, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Drosophilidae (Family)
     Aprionus Kieffer, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Aproctomus
     Aproctomus Rafinesque, 1820 accepted as Aproctomus Rafinesque, 1820 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Aproctomus Rafinesque, 1814 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Aproctus
 Aproctus Railliet & Henry, 1910 accepted as Aprocta Linstow, 1883 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Aproctidae (Family)
     Aproctus Verloren, 1881 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Aprosita
 Aprosita Turner, 1917 accepted as Niceteria Turner, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Aprosita Turner, 1914 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Anthelidae (Family)

Aprosopus
     Aprosopus Guérin-Méneville, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Aprosopus Deyrolle, 1864 accepted as Cyalithus Thomson, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Aprostatandrya
     Aprostatandrya Spasski in Skrjabin, 1951 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)
 Aprostatandrya Kirschenblatt, 1932 accepted as Paranoplocephala Lühe in Brauer, 1910 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Anoplocephalidae (Family)

Apseudes
     Apseudes Rafinesque, 1840 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Apseudes Leach, 1814 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Tanaidacea (Order) > Apseudidae (Family)

Apseudesia
     Apseudesia Pergens, 1887 accepted as Apseudesia Pergens, 1887 (nomen nudum)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Apseudesia de Blainville, 1830 accepted as Apseudesia de Blainville, 1830 · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Frondiporidae (Family)

Apsida
     Apsida Dejean, 1834 accepted as Apsida Lacordaire, 1859 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Apsida Lacordaire, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Apsilus
     Apsilus Valenciennes in Cuvier & Valenciennes, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Lutjanidae (Family)
 Apsilus Metschnikoff, 1866 accepted as Cupelopagis Forbes, 1882 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Collothecaceae (Order) > Atrochidae (Family)

Apsis
     Apsis Germar, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Apsis Germar, 1817 accepted as Apsis Germar, 1820 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Apsteinia
 Apsteinia Schmeil, 1894 accepted as Mesochra Boeck, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Laophontidae (Family)
 Apsteinia Metcalf, 1918 accepted as Ihlea Metcalf, 1919 · Animalia (Kingdom) > Chordata (Phylum) > Thaliacea (Class) > Salpida (Order) > Salpidae (Family)
 Apsteinia T.H. Abé, 1981 accepted as Diplopsalis Bergh, 1881 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Protoperidiniaceae (Family)

Aptenia
     Aptenia N.E. Brown, 1925 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
 Aptenia Amyot, 1847 accepted as Aptenia Amyot, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Aptenodytes
     Aptenodytes Forster in G. Forster, 1777 accepted as Aptenodytes Miller, 1778 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Sphenisciformes (Order) > Spheniscidae (Family)
     Aptenodytes Miller, 1778 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Sphenisciformes (Order) > Spheniscidae (Family)

Aptereutochia
     Aptereutochia Kaszab, 1979 accepted as Aptereutochia Kaszab, 1980 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Aptereutochia Kaszab, 1980 accepted as Cenoscelis Wollaston, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Apterigia
 Apterigia Basilewsky, 1855 accepted as Monopterus Lacepède, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Synbranchiformes (Order) > Synbranchidae (Family)
 Apterigia A.I. Galucko, 1970 accepted as Thlaspi Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Apterodon
 Apterodon Fisher, 1940 accepted as Pteraster Müller & Troschel, 1842 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Velatida (Order) > Pterasteridae (Family)
     Apterodon Fischer, 1881 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Creodonta (Order) > Hyainailouridae (Family)

Apterodytes
 Apterodytes Ameghino, 1901 accepted as Aptenodytes Miller, 1778 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Sphenisciformes (Order) > Spheniscidae (Family)
 Apterodytes Hermann, 1783 accepted as Apterodytes Hermann, 1783 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Apterogena
 Apterogena Amyot, 1847 accepted as Apterogena Amyot, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Apterogena Ardoin, 1962 accepted as Genateropa Bouchard & Bousquet, 2021 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Apterogyna
 Apterogyna Reiche, 1882 accepted as Pseudoapterogyna Escalera, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Apterogyna Harold in Gemminger & Harold, 1869 accepted as Pseudoapterogyna Escalera, 1914 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Apterogyna Latreille, 1809 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Apterogyna Reitter, 1902 accepted as Pseudoapterogyna Escalera, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Apteronina
 Apteronina Wasmann, 1901 accepted as Sceptobius Sharp, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Apteronina Borgmeier, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Phoridae (Family)

Apteronotus
     Apteronotus Kang, Hu & Luo, 2024 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
     Apteronotus Lacepède, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gymnotiformes (Order) > Apteronotidae (Family)

Apteropeda
 Apteropeda Stephens, 1839 accepted as Apteropeda Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Apteropeda Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Apteropeda Redtenbacher, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Apterornis
 Apterornis de Selys, 1848 accepted as Threskiornis Gray, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Threskiornithidae (Family)
 Apterornis Owen, 1848 † accepted as Aptornis Owen, 1848 † · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Gruiformes (Order) > Aptornithidae (Family)

Apterosoma
 Apterosoma Motschoulsky, 1861 accepted as Chrysolina Motschoulsky in Schrenck, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Apterosoma S. Komura, 1997 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)
     Apterosoma Salmon, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chloropidae (Family)

Apterurus
 Apterurus Agassiz, 1846 accepted as Mobula Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Myliobatidae (Family)
 Apterurus Rafinesque, 1810 accepted as Mobula Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Myliobatidae (Family)

Apterygia
 Apterygia Gray, 1835 accepted as Raconda Gray, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Clupeiformes (Order) > Clupeidae (Family)
 Apterygia Costa, 1881 accepted as Apterygida Westwood, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Dermaptera (Order) > Forficulidae (Family)
 Apterygia Baehni, 1964 accepted as Sideroxylon Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)

Aptilotus
     Aptilotus Mik, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)
 Aptilotus Bode, 1953 † accepted as Aptilotitus Carpenter, 1985 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > (Family)

Aptinus
 Aptinus Latreille & Dejean, 1822 accepted as Aptinus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Aptinus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Aptus
     Aptus Hahn, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Nabidae (Family)
 Aptus Sharpe, 1909 accepted as Gnorimopsar Richmond, 1908 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Icteridae (Family)

Aptychopsis
 Aptychopsis Woodward, 1872 † accepted as Aptychopsis Barrande, 1872 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Orthocerida (Order) > Peltocarididae (Family)
     Aptychopsis Barrande, 1872 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Orthocerida (Order) > Peltocarididae (Family)
     Aptychopsis (V.F. Brotherus) M. Fleischer, 1923 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnales (Order) > Sematophyllaceae (Family)

Aptychus
     Aptychus von Meyer, 1831 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Aptychi (awaiting allocation) (Family)
     Aptychus (Müller Hal.) Müller Hal., 1896 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Hypnaceae (Family)

Aptyxis
     Aptyxis Pcelinzev, 1928 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Nerineidae (Family)
     Aptyxis Troschel, 1868 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Fasciolariidae (Family)
 Aptyxis Zittel, 1873 † accepted as Aptyxiella Fischer, 1885 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Heterostrophia (awaiting allocation) (Family)

Apua
     Apua Goüan, 1770 accepted as Apua Goüan, 1770 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Apua Blyth, 1860 accepted as Pangio Blyth, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cobitidae (Family)

Apuleia
     Apuleia C.F.P. Martius, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Apuleia J. Gaertner, 1791 accepted as Apuleja J. Gaertner, 1791 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Apuleja
 Apuleja J. Gaertner, 1791 accepted as Apuleja J. Gaertner, 1791 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Apuleja C.F.P. Martius, 1837 accepted as Apuleja C.F.P. Martius, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Apus
     Apus Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Apodidae (Family)
 Apus Schoch, 1868 accepted as Asplanchna Gosse, 1850 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Asplanchnidae (Family)
 Apus C.G.D. Nees ex S.F. Gray, 1821 accepted as Schizophyllum E.M. Fries, 1815 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Schizophyllaceae (Family)
     Apus Cuvier, 1798 accepted as Triops Schrank, 1803 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Notostraca (Order) > Triopsidae (Family)

Apyre
     Apyre Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Apyre Simon, 1895 accepted as Apyretina Strand, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Thomisidae (Family)

Apyrtula
     Apyrtula Edwards, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Keroplatidae (Family)
     Apyrtula Edwards, 1940 accepted as Apyrtula Edwards, 1941 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Keroplatidae (Family)

Aquarius
     Aquarius M.J.M. Christenhusz & J.W. Byng in Christenhusz et al., 2018 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Alismataceae (Family)
     Aquarius Voet, 1806 accepted as (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Aquarius Schellenberg, 1800 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Gerridae (Family)

Aquila
 Aquila Agassiz, 1846 accepted as Aquila Agassiz, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Aquila Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)
 Aquila Bowdich, 1822 accepted as Aquila Bowdich, 1822 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ranellidae (Family)

Aquilaria
     Aquilaria Taylor & Wells, 1994 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Turridae (Family)
     Aquilaria Lamarck, 1783 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Thymelaeaceae (Family)

Aquilaspio
 Aquilaspio [auctorum] accepted as Prionospio Malmgren, 1867 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Spionida (Order) > Spionidae (Family)
 Aquilaspio Foster, 1971 accepted as Prionospio Malmgren, 1867 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Spionida (Order) > Spionidae (Family)

Aquilla
     Aquilla Mitchell, 1839 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Aquilla Endler & Scholz, 1809 accepted as Aquila Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)

Aquilus
     Aquilus Brown, 1824 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Aquilus Agassiz, 1846 accepted as Aquilus Agassiz, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ranellidae (Family)

Arabella
     Arabella Grube, 1850 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Aciculata (Order) > Oenonidae (Family)
     Arabella Robineau-Desvoidy, 1863 accepted as Araba Robineau-Desvoidy, 1830 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Arabis
     Arabis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Arabis Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Arabitragus
     Arabitragus Ropiquet & Hassanin, 2005 accepted as Arabitragus Ropiquet & Hassanin, 2017 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
     Arabitragus Ropiquet & Hassanin, 2017 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Aracamunia
     Aracamunia G. Carnevali & I.M. Ramírez Morillo, 1989 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Aracamunia Fennah, 1968 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Arachis
     Arachis Raffray, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Arachis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Arachnacris
     Arachnacris Gorochov, 2020 accepted as Phaeophilacris Walker, 1871 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Phalangopsidae (Family)
     Arachnacris Giebel, 1861 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Arachne
 Arachne (Endlicher) A.I. Pojarkova, 1940 accepted as Leptopus Decaisne in Jacquemont, 1843-1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)
     Arachne Savigny in Audouin, 1826 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Arachnia
     Arachnia Pine & Georg, 1969 (Approved Lists, 1980) · Bacteria (Kingdom) > Actinobacteria (Phylum) > Actinobacteria (Class) > Actinomycetales (Order) > Propionibacteriaceae (Family)
 Arachnia Agassiz, 1846 accepted as Araschnia Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Arachnidium
 Arachnidium Kent, 1881-82 accepted as Strobilidium Schewiakoff, 1892 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Choreotrichida (Order) > Strobilidiidae (Family)
 Arachnidium Hincks, 1877 accepted as Arachnidium Hincks, 1859 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Ctenostomatida (Order) > Arachnidiidae (Family)
     Arachnidium Hincks, 1859 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Ctenostomatida (Order) > Arachnidiidae (Family)

Arachnimorpha
 Arachnimorpha Desvaux ex W. Hamilton, 1825 accepted as Rondeletia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Arachnimorpha Kirby, 1827 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Arachniophyllum
     Arachniophyllum Smyth, 1915 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)
 Arachniophyllum Lang, Smith & Thomas, 1940 † accepted as Arachnophyllum Dana, 1846 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Arachnophyllidae (Family)

Arachniopsis
     Arachniopsis Spruce, 1882 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Jungermanniales (Order) > Lepidoziaceae (Family)
     Arachniopsis W.H. Long, 1917 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Agaricaceae (Family)

Arachnipes
     Arachnipes Curtis, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Arachnipes Villa & Villa, 1833 accepted as Cryptorhynchus Illiger, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Arachnipes Dahl, 1823 accepted as Arachnipes Dahl, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Arachnis
     Arachnis Geyer in Hübner, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Arachnis Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Arachnium
 Arachnium accepted as Arachnion Schweinitz, 1822 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Agaricaceae (Family)
     Arachnium Keyserling, 1846 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Arachnobas
 Arachnobas Montrouzier, 1861 accepted as Rhynchodes White, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Arachnobas Boisduval in d'Urville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Arachnocystis
     Arachnocystis Bather, 1899 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Arachnocystis Levine, 1979 · Chromista (Kingdom) > Miozoa (Phylum) > (Class) > Eugregarinida (Order) > Hirmocystidae (Family)

Arachnodes
 Arachnodes Gagnepain, 1950 accepted as Phyllanthus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)
     Arachnodes Westwood, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Arachnodinium
     Arachnodinium Wilson & Clowes, 1982 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacaceae (Family)
 Arachnodinium van Hoven, Gilchrist & Hamilton-Attwell, 1987 accepted as Arachnodinella Aescht, 2001 · Chromista (Kingdom) > Ciliophora (Phylum) > Litostomatea (Class) > Entodiniomorphida (Order) > Cycloposthiidae (Family)

Arachnoidea
 Arachnoidea Annandale, 1911 accepted as Arachnoidea Moore, 1903 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Ctenostomatida (Order) > Arachnidiidae (Family)
     Arachnoidea Moore, 1903 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Ctenostomatida (Order) > Arachnidiidae (Family)

Arachnoides
     Arachnoides Leske, 1778 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Clypeasteroida (Order) > Clypeasteridae (Family)
 Arachnoides Klein, 1778 accepted as Arachnoides Leske, 1778 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Clypeasteroida (Order) > Clypeasteridae (Family)

Arachnomimus
     Arachnomimus Saussure, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Phalangopsidae (Family)
 Arachnomimus Bellés, 1985 accepted as Bellesus Özdikmen, 2010 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)

Arachnophila
     Arachnophila Salvadori, 1874 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Arachnophila China & Myers, 1929 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Arachnophila Ashmead, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Arachnophroctonus
 Arachnophroctonus Howard, 1901 accepted as Anoplius Dufour, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pompilidae (Family)
 Arachnophroctonus Ashmead, 1902 accepted as Tachypompilus Ashmead, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pompilidae (Family)

Arachnophyllum
     Arachnophyllum Zanardini, 1843 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Delesseriaceae (Family)
     Arachnophyllum Dana, 1846 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Arachnophyllidae (Family)
     Arachnophyllum Dana, 1846, nom. nud. † accepted as Arachnophyllum Dana, 1846 † (nomen nudum)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Arachnophyllidae (Family)

Arachnopsis
     Arachnopsis Stimpson, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Inachoididae (Family)
 Arachnopsis de Saussure, 1878 accepted as Arachnomimus Saussure, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Phalangopsidae (Family)
     Arachnopsis Hort., 1939 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Arachnopus
 Arachnopus Agassiz, 1846 accepted as Cryptorhynchus Illiger, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Arachnopus Guérin-Méneville, 1838 accepted as Arachnobas Boisduval in d'Urville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Arachnura
     Arachnura Vinson, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
 Arachnura Thorell, 1869 accepted as Arachnura Vinson, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)

Aracispermum
     Aracispermum P.A. Nikitin ex P.I. Dorofeev in Ju.A. Orlov, 1963 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberales (awaiting allocation) (Family)
 Aracispermum P.A. Nikitin, 1965 † accepted as Aracispermum P.A. Nikitin ex P.I. Dorofeev in Ju.A. Orlov, 1963 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberales (awaiting allocation) (Family)

Aradasia
 Aradasia Settepassi, 1970 accepted as Coralliophila H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
     Aradasia Gray, 1850 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Araeocerus
 Araeocerus Schönherr, 1839 accepted as Araecerus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
     Araeocerus Nordmann, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Araeopaschia
 Araeopaschia Hampson, 1916 accepted as Geropaschia Hampson, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Araeopaschia Hampson, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Araeopterella
     Araeopterella Fibiger & Hacker, 2001 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Araeopterella Dyar, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Araeopus
 Araeopus Leconte, 1874 accepted as Aracopidius Cockerell, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptilodactylidae (Family)
 Araeopus Lyneborg, 1983 accepted as Yemenia Koçak & Kemal, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Therevidae (Family)
 Araeopus Spinola, 1839 accepted as Delphax Fabricius, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Delphacidae (Family)

Araeoscelis
     Araeoscelis Schulz, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Araeoscelis Williston, 1910 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Araeoscelidia (Order) > Araeoscelidae (Family)

Araeotanopus
     Araeotanopus Waterhouse, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)
 Araeotanopus Arrow in Schenkling, 1912 accepted as Araeotanypus Waterhouse, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)

Aragonella
     Aragonella Gozalo, 1994 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Aragonella Calvez, 1989 † accepted as Calvezella Schlagintweit, 2020 † (junior homonym)· Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Loftusiida (Order) > Orbitolinidae (Family)
     Aragonella Thalmann, 1942 † accepted as Hantkenina Cushman, 1924 † (junior subjective synonym)· Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Hantkeninidae (Family)

Aragonia
 Aragonia Carpenter, 1857 accepted as Agaronia Gray, 1839 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Olividae (Family)
     Aragonia Finlay, 1939 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Loxostomatidae (Family)
 Aragonia Stephens, 1835 accepted as Aragonia Stephens, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Araliophyllum
     Araliophyllum Ettingshausen, 1868 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)
     Araliophyllum H.D. MacGinitie, 1969 † accepted as Allopanax A.B. Doweld, 2017 † (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)

Araliopsis
 Araliopsis Engler in Engler & Prantl, 1896 accepted as Vepris Commerson ex A.H.L. Jussieu, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Araliopsis W.S. Kurz, 1870 accepted as Araliopsis W.S. Kurz, 1870 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)
 Araliopsis E.W. Berry, 1911 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)

Aralocardia
     Aralocardia Vialov, 1937 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneroida (awaiting allocation) (Family)
     Aralocardia Vialov in Korobkov, 1954 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Arambourgia
     Arambourgia Kälin, 1939 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Arambourgia Whitley, 1935 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Perciformes (awaiting allocation) (Family)

Aranda
     Aranda Fruhstorfer, 1909 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Aranda Hort., 1937 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Aranea
 Aranea Linnaeus, 1758 accepted as Tegenaria Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Agelenidae (Family)
 Aranea Perry, 1810 accepted as Murex Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Arapaima
     Arapaima Müller, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osteoglossiformes (Order) > Arapaimidae (Family)
 Arapaima Müller, 1843 [2] accepted as Arapaima Müller, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osteoglossiformes (Order) > Arapaimidae (Family)

Arara
 Arara Walker, 1855 accepted as Lepidokirbyia Travassos, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Arara Spix, 1824 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Psittaciformes (Order) > Psittacidae (Family)

Araratella
     Araratella Abramian, Plodowski & Sartenaer in Sartenaer & Plodowski, 1975 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellina incertae sedis (Family)
     Araratella Abramian, 1974 † accepted as Araratella Abramian, Plodowski & Sartenaer in Sartenaer & Plodowski, 1975 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellina incertae sedis (Family)
 Araratella Akopyan, 1976 † accepted as Mennessieria Calzada, 1987 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Cassiopidae (Family)

Aratus
     Aratus H. Milne Edwards, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Sesarmidae (Family)
     Aratus Howard, 1897 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
 Aratus Wulp, 1898 accepted as Neoaratus Ricardo, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)

Araucania
     Araucania Pate, 1947 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sapygidae (Family)
     Araucania Parodiz, 1954 accepted as Austrodiscus Parodiz, 1957 (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)
     Araucania Marsh, 1993 accepted as Araucania Marsh, 1993 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
     Araucania Brundin, 1966 accepted as Reissmesa Ashe, 2000 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)
     Araucania Chamberlin, 1956 accepted as Cesachile Koçak & Kemal, 2008 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Geophilomorpha (Order) > Geophilidae (Family)

Araucariopitys
     Araucariopitys Jeffrey, 1907 † accepted as Araucariopitys A. Hollick & E.C. Jeffrey, 1909 † (unavailable name)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Araucariales (Order) > Araucariaceae (Family)
     Araucariopitys A. Hollick & E.C. Jeffrey, 1909 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Araucariales (Order) > Araucariaceae (Family)

Araucarites
     Araucarites Tuzson, 1911 † accepted as Agathoxylon Hartig, 1848 † (junior subjective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Araucariales (Order) > Araucariaceae (Family)
     Araucarites Endlicher, 1837 † accepted as Araucarites Endlicher, 1837 † (unavailable name)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)
     Araucarites K.B. Presl in Sternberg, 1838 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Araucariales (Order) > Araucariaceae (Family)

Arawakia
     Arawakia Villiers, 1981 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Arawakia L. Marinho in Marinho et al., 2019 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)

Araxes
     Araxes Stephens, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Araxes Walker, 1863 accepted as Culladia Moore, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)

Arbela
     Arbela Stål, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Nabidae (Family)
     Arbela Anufriev, 1972 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Arbela Moore, 1879 accepted as Indarbela Fletcher, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Cossidae (Family)

Arberia
     Arberia D. White in I.C. White, 1908 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Arberiales (Order) > Arberiaceae (Family)
 Arberia Nieuwland, 1916 accepted as Meliola E.M. Fries, 1825 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Meliolales (Order) > Meliolaceae (Family)

Arbolygus
     Arbolygus Krivolutskoi, 1973 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Arbolygus Kerzhner, 1979 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Arborella
 Arborella Osburn, 1914 accepted as Tetraplaria Tenison-Woods, 1879 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Tetraplariidae (Family)
     Arborella Zebrowski, 1936 † · Fungi (Kingdom) > Chytridiomycota (Phylum) > Chytridiomycota incertae sedis (Class) > Chytridiomycota incertae sedis (Order) > Chytridiomycota incertae sedis (Family)
 Arborella Gatehouse, 1967 † accepted as Rankenella Kruse, 1983 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Lithistida (Order) > Anthaspidellidae (Family)

Arborichnus
     Arborichnus Romano & Melendez, 1985 † (uncertain)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)
     Arborichnus Ekdale & Lewis, 1991 † (uncertain)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)

Arboricola
 Arboricola Strickland, 1841 accepted as Arborophila Hodgson, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)
     Arboricola Hodgson, 1844 accepted as Arboricola Hodgson, 1844 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Arborocladia
     Arborocladia Nikiforova, 1941 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Fenestrida (Order) > Fenestrida (awaiting allocation) (Family)
     Arborocladia Nekhoroschev, 1933 † accepted as Arborocladia Nekhoroschev, 1933 † (nomen nudum)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)

Arbuscula
 Arbuscula Batista & Peres, 1965 accepted as Neoarbuscula B.C. Sutton, 1983 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Arbuscula Parona, 1933 † accepted as Trinacriarbuscula Ceccolini & Cianferoni, 2022 † (junior homonym)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Lithistida (Order) > Lithistida (awaiting allocation) (Family)
     Arbuscula Bolivar, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Pyrgomorphidae (Family)
     Arbuscula H.A. Crum, Steere & L.E. Anderson, 1964 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Neckeraceae (Family)

Arbusculidium
 Arbusculidium B.C. Sutton, 1982 accepted as Neoarbuscula B.C. Sutton, 1983 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Arbusculidium J. Deunff, 1968 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Arbusculites
     Arbusculites S.A. Paradkar, 1976 † accepted as Dictyosporites Félix, 1894 † (junior subjective synonym)· Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
 Arbusculites Murray, 1831 † accepted as Productus Sowerby, 1814 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productidae (Family)

Arcadiaspis
 Arcadiaspis Westrop, Palmer & Runkel, 2005 † accepted as Wisarcadiaspis Westrop & Palmer, 2009 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Eurekiidae (Family)
     Arcadiaspis Bognibova in Bbognibova & Shcheglov, 1970 † accepted as Arcadiaspis Bognibova in Bbognibova & Shcheglov, 1970 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Alokistocaridae (Family)
     Arcadiaspis Bognibova, 1971 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Alokistocaridae (Family)

Arcella
 Arcella Ehrenberg, 1838 accepted as · Protozoa (Kingdom) > Amoebozoa (Phylum) > Amoebozoa (Class) > (Order) > (Family)
     Arcella Ehrenberg, 1832 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Tubulinea (Class) > Arcellinida (Order) > Arcellidae (Family)

Arcellina
 Arcellina Du Plessis, 1876 accepted as Gromia Dujardin, 1835 · Chromista (Kingdom) > Cercozoa (Phylum) > Gromiidea (Class) > Gromiida (Order) > Gromiidae (Family)
 Arcellina Carter, 1856 accepted as Arcella Ehrenberg, 1832 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Tubulinea (Class) > Arcellinida (Order) > Arcellidae (Family)

Archa
 Archa Rang, 1829 accepted as Arca Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)
     Archa Distant, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Derbidae (Family)

Archaeaspis
     Archaeaspis Ivantsov, 2001 † accepted as Archaeaspinus Ivantsov, 2007 † (junior homonym)· Animalia (Kingdom) > Vendobionta (Phylum) > (Class) > Rangeomorpha (Order) > (Family)
     Archaeaspis Repina in Khomentovsky & Repina, 1965 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Redlichiida (Order) > Archaeaspididae (Family)

Archaeocarabus
 Archaeocarabus Semenov, 1897 accepted as Carabus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Archaeocarabus M'Coy, 1849 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Palinuridae (Family)

Archaeocenosphaera
     Archaeocenosphaera Pessagno & Yang in Pessagno, Six & Yang, 1989 † (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Xiphostylidae (Family)
     Archaeocenosphaera Obut & Iwata, 2000 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Spumellaria incertae sedis (Family)

Archaeochelys
     Archaeochelys Bergounioux, 1938 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Testudines (awaiting allocation) (Family)
     Archaeochelys Lydekker, 1889 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Archaeodon
 Archaeodon Crickmay, 1930 accepted as Cucullaea Lamarck, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Cucullaeidae (Family)
 Archaeodon von Huene, 1925 † accepted as · Questionable / non-biota (fossil) (Kingdom) > Pseudofossils (Phylum) > (Class) > (Order) > (Family)

Archaeodrilus
     Archaeodrilus Szüts, 1913 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)
     Archaeodrilus Czerniavsky, 1881 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)

Archaeogadus
     Archaeogadus Marck, 1860 † accepted as Archaeogadus Marck, 1860 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Archaeogadus Marck, 1868 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Archaeogomphus
     Archaeogomphus Williamson, 1919 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Gomphidae (Family)
     Archaeogomphus Lin, 1976 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Gomphidae (Family)

Archaeolamna
     Archaeolamna Siverson, 1992 † · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Lamniformes (Order) > Cretoxyrhinidae (Family)
 Archaeolamna Li, 1997 † accepted as Lilamna Greenfield, 2021 † · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Lamniformes (Order) > Pseudoscapanorhynchidae (Family)

Archaeolophus
 Archaeolophus Ameghino, 1897 † accepted as Carolozittelia Ameghino, 1901 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pyrotheria (Order) > Pyrotheriidae (Family)
     Archaeolophus Ameghino, 1897, nom. nud. † accepted as Carolozittelia Ameghino, 1901 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pyrotheria (Order) > Pyrotheriidae (Family)

Archaeomyripristis
 Archaeomyripristis Greenfield, 1974 accepted as Myripristis Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Holocentriformes (Order) > Holocentridae (Family)
 Archaeomyripristis Greenfield, 1966 accepted as Myripristis Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Holocentriformes (Order) > Holocentridae (Family)

Archaeomys
 Archaeomys Fraas, 1856 accepted as Prolagus Pomel, 1852 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Lagomorpha (Order) > Prolagidae (Family)
     Archaeomys Laizer & Parieu, 1839 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Theridomyidae (Family)

Archaeoniscus
     Archaeoniscus Milne Edwards, 1843 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Archaeoniscidae (Family)
     Archaeoniscus Sauvage, 1890 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Archaeophlebia
     Archaeophlebia Ris, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Libellulidae (Family)
     Archaeophlebia Piton, 1940 † accepted as Louispitonia Schubnel & Nel, 2019 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Chaeteessidae (Family)

Archaeophylax
     Archaeophylax Kimmins in Mosely & Kimmins, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Limnephilidae (Family)
 Archaeophylax Leschen & Rhode, 2002 † accepted as Waitomophylax Leschen & Rhode, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ulodidae (Family)

Archaeophyton
 Archaeophyton V.A. Chachlov, 1948 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Equisetidae (awaiting allocation) (Order) > Equisetidae (awaiting allocation) (Family)
 Archaeophyton N.L. Britton, 1888 † accepted as Archaeophyton N.L. Britton, 1888 † · Questionable / non-biota (fossil) (Kingdom) > Pseudofossils (Phylum) > (Class) > (Order) > (Family)

Archaeoplax
     Archaeoplax Stimpson, 1863 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Geryonidae (Family)
 Archaeoplax Alcock & Anderson, 1894 accepted as Retropluma Gill, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Retroplumidae (Family)

Archaeops
 Archaeops Hupé, 1953 † accepted as Eoredlichia Chang, 1950 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Redlichiida (Order) > Redlichiidae (Family)
     Archaeops Hupé in Piveteau, 1953, nom. nud. † accepted as Eoredlichia Chang, 1950 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Redlichiida (Order) > Redlichiidae (Family)

Archaeoraptor
     Archaeoraptor Olson, 2000 † accepted as Microraptor Xu, Zhou & Wang, 2000 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Saurischia (Order) > Dromaeosauridae (Family)
     Archaeoraptor Sloan, 1999 † accepted as (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > (Class) > (Order) > (Family)

Archaeoryctes
     Archaeoryctes Zheng, 1979 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pilosa (Order) > Didymoconidae (Family)
     Archaeoryctes Czerniavsky, 1881 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)

Archaeosacculina
     Archaeosacculina Pykhova, 1967 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)
 Archaeosacculina S.N. Naumova, 1968 † accepted as Palaeoharpastum R.A. Fensome, G.L. Williams, M.S. Barss, J.M. Freeman & J.M. Hill, 1990 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Archaeospongia
     Archaeospongia Billings, 1861 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Archaeospongia Krasnopeeva, 1937 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Tetractinomorpha (awaiting allocation) (Order) > Tetractinomorpha (awaiting allocation) (Family)

Archaeosuchus
     Archaeosuchus Broom, 1905 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Archaeosuchus Brown, 1933 † accepted as Protosuchus Brown, 1934 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Crocodylia (Order) > Protosuchidae (Family)

Archaeoteuthis
     Archaeoteuthis Wettstein, 1887 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Archaeoteuthis Roemer in Bronn, 1855 † accepted as Archaeoteuthis Roemer in Bronn, 1855 † · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Archaeotherium
     Archaeotherium von Huene, 1925 † accepted as Archaeodon von Huene, 1925 † (junior homonym)· Questionable / non-biota (fossil) (Kingdom) > Pseudofossils (Phylum) > (Class) > (Order) > (Family)
     Archaeotherium Leidy, 1850 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Entelodontidae (Family)

Archaeothrips
     Archaeothrips Priesner, 1924 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Thripidae (Family)
     Archaeothrips Field in Carus, 1910 accepted as Achaetothrips Karny, 1908 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Thripidae (Family)

Archaeotrichocera
     Archaeotrichocera Zhang, 2006 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Trichoceridae (Family)
 Archaeotrichocera Krzemińska, Krzemiński & Dahl, 2009 † accepted as Eotrichocera Kalugina in Kalugina & Kovalev, 1985 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Trichoceridae (Family)

Archarias
 Archarias Villa & Villa, 1833 accepted as Archarius Gistel, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Archarias Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Archarias Dejean, 1821 accepted as Cholus Germar, 1824 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Archarius
 Archarius Dahl, 1823 accepted as Archarias Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Archarius Gistel, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Archboldia
 Archboldia E. Beer & Lam, 1936 accepted as Clerodendrum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Archboldia Rand, 1940 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Ptilonorhynchidae (Family)

Archboldiella
     Archboldiella Bartram, 1942 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hookeriales (Order) > Daltoniaceae (Family)
     Archboldiella Winkler Prins, 2008 † accepted as Spiriarchboldiella Ceccolini & Cianferoni, 2022 † (junior homonym)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Spiriferellidae (Family)
     Archboldiella Heinrich, 1934 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Archegetes
 Archegetes Leuckart, 1878 accepted as Archigetes Leuckart, 1878 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Caryophyllidea (Order) > Caryophyllaeidae (Family)
     Archegetes Handlirsch, 1906 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)

Archelater
     Archelater Pongrácz, 1935 † accepted as Archelater Carpenter, 1992 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Archelater Carpenter, 1992 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Archelytron
     Archelytron Carpenter, 1933 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Protelytroptera (Order) > Archelytridae (Family)
     Archelytron Haupt, 1952 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae incertae sedis (Family)

Archeria
     Archeria J.D. Hooker, 1857 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
 Archeria Nichols, 1949 accepted as Hephaestus De Vis, 1884 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Terapontidae (Family)
     Archeria Case, 1918 † · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anthracosauria (Order) > Archeriidae (Family)

Archibaldia
     Archibaldia Makarkin, 2023 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Hemerobiidae (Family)
     Archibaldia A. Witkowski & J. P. Kociolek in Witkowski, Kociolek & Kurzydłowski, 2011 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Bacillariales (Order) > Bacillariales incertae sedis (Family)

Archicasnonia
 Archicasnonia Liebke, 1938 accepted as Archicolliuris Liebke, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Archicasnonia Csiki, 1932 accepted as Archicasnonia Liebke, 1938 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Archiclops
     Archiclops Bischof, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Archiclops Karsch, 1891 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)

Archiconops
     Archiconops Smith, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Conopidae (Family)
 Archiconops Kröber, 1939 accepted as Archiconops Smith, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Conopidae (Family)

Archidice
 Archidice Kinberg, 1866 accepted as Cirratulus Lamarck, 1818 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Cirratulida (Order) > Cirratulidae (Family)
     Archidice Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Archilestes
     Archilestes Selys, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Lestidae (Family)
 Archilestes Schiner, 1866 accepted as Archilestris Loew, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)

Archilochus
     Archilochus Stål, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)
     Archilochus Reichenbach, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)

Archimantis
 Archimantis Vrsansky, 2002 † accepted as Jantarimantis Vršanský, 2002 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Jantarimantidae (Family)
     Archimantis Saussure, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)

Archimedea
     Archimedea Pchelintsev, 1965 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Archimedea Hudson, 1875 accepted as Stichotricha Perty, 1849 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Spirofilidae (Family)
     Archimedea Bory de Saint-Vincent, 1824 (uncertain)· Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > (Order) > Bacillariophyceae incertae sedis (Family)
 Archimedea Sacramento ex A.F.C.P. Saint-Hilaire, 1837 accepted as Lophophytum H.W. Schott & Endlicher, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Balanophoraceae (Family)

Archimedes
     Archimedes Lesueur in Owen, 1842 † · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Quadricellariidae (Family)
     Archimedes Paetel, 1875 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Archiphora
     Archiphora Rohdendorf, 1938 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Palaeophoridae (Family)
     Archiphora Schmitz, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sciadoceridae (Family)

Archisolva
 Archisolva Enderlein, 1921 accepted as Salduba Walker, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
     Archisolva Zhang, Zhang & Li, 1993 † accepted as Zhangsolva Nagatomi & Yang, 1998 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Zhangsolvidae (Family)

Architaea
     Architaea C.F.P. Martius & Zuccarini, 1825 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)
 Architaea Monterosato, 1875 accepted as Architaea Monterosato, 1875 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Archiulus
 Archiulus Berlese, 1886 accepted as Ommatoiulus Latzel, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Julida (Order) > Julidae (Family)
     Archiulus Scudder in Dawson, 1868 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)

Archon
     Archon Hübner, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Papilionidae (Family)
     Archon Kirby, 1825 accepted as Augosoma Burmeister, 1841 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Archonta
     Archonta Montfort, 1810 accepted as Cavolinia Abildgaard, 1791 (nomen dubium)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Thecosomata (Order) > Cavoliniidae (Family)
 Archonta Gistl, 1834 accepted as Euchroma Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Archonta Gistl, 1848 accepted as Archonta Gistl, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Archytaea
     Archytaea C.F.P. Martius, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Bonnetiaceae (Family)
 Archytaea Monterosato, 1875 accepted as Archytaea Monterosato, 1875 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Arcinella
     Arcinella Oken, 1815 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Arcinella Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Chamidae (Family)
 Arcinella Philippi, 1844 † accepted as Basterotina Coan, 1999 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Basterotiidae (Family)

Arcomya
     Arcomya Agassiz, 1843 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pholadomyoida (Order) > Pholadomyoida (awaiting allocation) (Family)
     Arcomya Agassiz, 1838 † accepted as Arcomya Agassiz, 1843 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pholadomyoida (Order) > Pholadomyoida (awaiting allocation) (Family)

Arcopaginula
     Arcopaginula Lamy, 1918 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Tellinidae (Family)
     Arcopaginula Jousseaume, 1918 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Tellinidae (Family)

Arcoptera
 Arcoptera Heilprin, 1887 accepted as Arca Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)
     Arcoptera Bittner, 1895 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Arcotheres
     Arcotheres Bürger, 1895 accepted as Arcotheres Manning, 1993 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pinnotheridae (Family)
     Arcotheres Manning, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pinnotheridae (Family)

Arctasellus
     Arctasellus Henry & Magniez, 1995 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Isopoda (awaiting allocation) (Family)
 Arctasellus Geoffroy, 1762 accepted as Asellus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Asellidae (Family)

Arctaspis
 Arctaspis Lermontova, 1940 † accepted as Paracrocephalites Poulsen, 1954 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)
     Arctaspis Heintz, 1929 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Arthrodira (Order) > Phlyctaeniidae (Family)

Arctia
     Arctia Schrank, 1802 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Arctia Hübner, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Arctica
     Arctica Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Arcticidae (Family)
 Arctica Möhring, 1758 accepted as Arctica Möhring, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Arctica Merrem in Ersch & Gruber, 1819 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Arctinia
     Arctinia Möschler, 1880 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Arctinia Eichwald, 1830 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Arctium
 Arctium Lamarck, 1779 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Arctium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Arctoa
     Arctoa Bruch & W.P. Schimper in Bruch, W.P. Schimper & Gümbel, 1846 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Dicranales (Order) > Dicranaceae (Family)
 Arctoa Herrmannsen, 1846 accepted as Arctoe Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)

Arctoceras
     Arctoceras Hyatt in Eastman-Zittel, 1900 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Arctoceras Böhm, 1899 † accepted as Nathorstites Böhm, 1904 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Nathorstitidae (Family)

Arctodium
     Arctodium Dejean, 1833 accepted as Arctodium Burmeister, 1844 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Arctodium Burmeister, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Arctogale
 Arctogale Kaup, 1829 accepted as Mustela Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)
 Arctogale Gray, 1865 accepted as Arctogalidia Merriam, 1897 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Viverridae (Family)

Arctomys
 Arctomys Ord, 1815 accepted as Cynomys Rafinesque, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Sciuridae (Family)
 Arctomys Schreber, 1782 accepted as Marmota Blumenbach, 1779 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Sciuridae (Family)

Arctomysis
 Arctomysis Hansen, 1887 accepted as Hansenomysis Stebbing, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Mysida (Order) > Mysidae (Family)
     Arctomysis Czerniavsky, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Mysida (Order) > Boreomysidae (Family)

Arctophila
     Arctophila (Ruprecht) N.J. Andersson, 1852 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Arctophila Schiner, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)

Arctopithecus
     Arctopithecus Gray, 1843 accepted as Bradypus Linnaeus, 1758 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pilosa (Order) > Bradypodidae (Family)
 Arctopithecus Virey, 1819 accepted as Callithrix Erxleben, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Cebidae (Family)
 Arctopithecus Gray, 1850 accepted as Bradypus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pilosa (Order) > Bradypodidae (Family)

Arctopsis
 Arctopsis Lamarck, 1801 accepted as Pisa Leach, 1814 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Majidae (Family)
 Arctopsis Athias-Henriot, 1973 † accepted as Athishenriotis Özdikmen, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Ascidae (Family)
     Arctopsis Barnard, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Arcturidae (Family)

Arctopsylla
     Arctopsylla Wagner, 1933 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Vermipsyllidae (Family)
     Arctopsylla Wagner, 1930 accepted as Arctopsylla Wagner, 1930 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Vermipsyllidae (Family)

Arctotherium
 Arctotherium Lemoine, 1896 † accepted as Arctocyon de Blainville, 1841 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Procreodi (Order) > Arctocyonidae (Family)
     Arctotherium Bravard, 1857 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Canidae (Family)

Arctotis
     Arctotis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Arctotis Bodylevskii, 1960 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Oxytomidae (Family)

Arcturella
 Arcturella G.O. Sars, 1897 accepted as Astacilla Cordiner, 1793 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Arcturidae (Family)
 Arcturella Chavan, 1941 † accepted as Arcturellina Chavan, 1951 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Carditidae (Family)

Arcturus
     Arcturus Curtis, 1830 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
     Arcturus Latreille, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Arcturidae (Family)
     Arcturus Gray, 1839 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Arctus
     Arctus Rambur, 1866 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Arctus Dana, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Scyllaridae (Family)
 Arctus Haan in Siebold, 1849 accepted as Scyllarus Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Arcuatula
     Arcuatula Lamy, 1919 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Mytiloida (Order) > Mytilidae (Family)
     Arcuatula Mazzo, 1939 accepted as Arcuatula Mazzo, 1939 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Arcuatula Gugenberger, 1934 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Arcuatula Soot-Ryen, 1955 † accepted as Geukensia van de Poel, 1959 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Mytiloida (Order) > Mytilidae (Family)

Arcularia
     Arcularia Fabricius, 1823 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Arcularia Link, 1807 accepted as Nassarius Duméril, 1805 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)

Arculus
 Arculus Van Tieghem, 1895 accepted as Amylotheca Van Tieghem, 1894 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Loranthaceae (Family)
     Arculus Monterosato, 1909 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Lasaeidae (Family)

Arcus
 Arcus A.P. Olshtynskaja, 1978 † accepted as Fossilarcus S. Blanco, 2020 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Hemiaulales (Order) > Hemiaulaceae (Family)
     Arcus Hong, 1983 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Paraxymyiidae (Family)

Arcynopteryx
 Arcynopteryx Kalpálek, 1912 accepted as Megarcys Klapálek, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Perlodidae (Family)
     Arcynopteryx Klapálek, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Perlodidae (Family)

Arcyptera
     Arcyptera Audinet-Serville, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Arcyptera Harz, 1987 accepted as Adolfius Harz, 1988 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Arcyrella
     Arcyrella Rostafianski, 1875 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Arcyrella (Rostafinski) Raciborski, 1884 accepted as Arcyria Hill ex F.H. Wiggers, 1780 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxomycetes (Class) > Trichiales (Order) > Trichiaceae (Family)

Ardelia
     Ardelia Chamberlain & Baer, 1973 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Malacostraca (awaiting allocation) (Order) > Malacostraca (awaiting allocation) (Family)
     Ardelia Melichar, 1907 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Issidae (Family)

Ardelio
 Ardelio Loew, 1873 accepted as Neoardelio Hendel, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Platystomatidae (Family)
     Ardelio Gistl, 1848 accepted as Anthracias Dejean, 1834 (junior objective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Ardeomega
     Ardeomega Bonaparte, 1855 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Ardeomega Bonaparte, 1854 accepted as Ardeomega Bonaparte, 1854 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Ardisia
 Ardisia J. Gaertner, 1790 accepted as Styphelia J.E. Smith, 1795 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
     Ardisia O. Swartz, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)

Ardissonea
 Ardissonea J.G. Agardh, 1899 accepted as Naccaria Endlicher, 1836 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Bonnemaisoniales (Order) > Naccariaceae (Family)
     Ardissonea De Notaris, 1870 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Toxariales (Order) > Ardissoneaceae (Family)

Ardoinia
     Ardoinia Kaszab, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Ardoinia Özdikmen, 2004 accepted as Spelaebiosis Bousquet & Bouchard, 2018 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Ardua
 Ardua Giebel, 1872 accepted as Ardea Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ardeiformes (Order) > Ardeidae (Family)
     Ardua Malaise, 1937 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Arduina
 Arduina P. Miller ex Linnaeus, 1767 accepted as Carissa Linnaeus, 1767 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Arduina Adanson, 1763 accepted as Arduina Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Areia
     Areia Barrande, 1872 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Phacopida (awaiting allocation) (Family)
     Areia Barrande in Bigsby, 1868 † accepted as Areia Barrande, 1872 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Phacopida (awaiting allocation) (Family)

Arena
     Arena Mulsant & Verreaux, 1878 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Arena Fauvel, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Arenaria
     Arenaria Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)
 Arenaria Renier, 1804 accepted as Arenaria Renier, 1804 · Animalia (Kingdom) > Animalia (awaiting allocation) (Phylum) > Animalia (awaiting allocation) (Class) > Animalia (awaiting allocation) (Order) > Animalia (awaiting allocation) (Family)
 Arenaria Megerle von Mühlfeld, 1811 accepted as Scrobicularia Schumacher, 1815 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Myidae (Family)
     Arenaria Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)
     Arenaria Bechstein, 1803 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Arenaria Chen & Shi, 2006 † accepted as Marginifera Waagen, 1884 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Thecidellinidae (Family)
 Arenaria Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)
     Arenaria Opitz, 1997 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)

Arenarius
     Arenarius Gistl, 1848 accepted as Arenarius Gistl, 1848 (nomen nudum)· Animalia (Kingdom) > Animalia (awaiting allocation) (Phylum) > Animalia (awaiting allocation) (Class) > Animalia (awaiting allocation) (Order) > Animalia (awaiting allocation) (Family)
 Arenarius Dumont, 1805 accepted as Arenaria Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)
     Arenarius Voet, ? 1796 accepted as (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Arene
     Arene Conrad in Kerr, 1875 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Arene H. Adams & A. Adams, 1854 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Areneidae (Family)

Arenia
     Arenia Robineau-Desvoidy, 1863 accepted as Billaea Robineau-Desvoidy, 1830 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Arenia Quatrefages, 1866 accepted as Notomastus M. Sars, 1851 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Capitellida (Order) > Capitellidae (Family)

Arenicola
 Arenicola Velenovský, 1947 accepted as Entoloma (E.M. Fries ex Rabenhorst) Kummer, 1871 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Entolomataceae (Family)
 Arenicola Martens, 1870 accepted as Amnicola Gould & Haldeman in Haldeman, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)
     Arenicola Lamarck, 1801 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Capitellida (Order) > Arenicolidae (Family)

Arenochalina
 Arenochalina Lendenfeld, 1887 accepted as Mycale Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Mycalidae (Family)
     Arenochalina Lendenfeld, 1887, nom. nud. accepted as Mycale Gray, 1867 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Mycalidae (Family)

Arenopontia
     Arenopontia Kunz, 1937 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Arenopontiidae (Family)
     Arenopontia Wells, 1967 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Copepoda (awaiting allocation) (Order) > Copepoda (awaiting allocation) (Family)

Areolaria
 Areolaria K. Kalchbrenner, 1884 accepted as Phellorinia M.J. Berkeley, 1843 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Phelloriniaceae (Family)
 Areolaria Brunner, 1865 accepted as Prosoplecta Saussure, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Ectobiidae (Family)

Arequipa
 Arequipa N.L. Britton & J.N. Rose, 1922 accepted as Oreocereus (A. Berger) Riccobono, 1909 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)
     Arequipa Walker, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Areschougia
     Areschougia Harvey, 1855 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Areschougiaceae (Family)
 Areschougia Trevisan, 1845 accepted as · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)
 Areschougia Meneghini, 1844 accepted as Elachista Duby, 1830 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Ectocarpales (Order) > Chordariaceae (Family)

Arete
     Arete Stimpson, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Alpheidae (Family)
 Arete Kinberg, 1865 accepted as Perinereis Kinberg, 1865 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Nereididae (Family)

Arethusa
     Arethusa Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Arethusa Duméril & Bibron, 1841 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Arethusa de Montfort, 1808 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Arethusa Bonaparte, 1838 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Arethusa Oken, 1815 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Arethusa Haeckel, 1888 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Arethusa De Man, 1887 accepted as Arethusa De Man, 1887 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Alpheidae (Family)
     Arethusa Barrande, 1846 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Aretia
 Aretia Linnaeus, 1753 accepted as Androsace Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)
 Aretia Poey, 1832 accepted as Aretia Poey, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Aretia Link, 1829 accepted as Primula Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)

Areyonga
     Areyonga Young, 1997 † accepted as Areyongalepis Young, 2000 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > (Order) > (Family)
     Areyonga Gauld, 1984 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Arfaka
 Arfaka Distant, 1907 accepted as Proutista Kirkaldy, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Derbidae (Family)
     Arfaka Distant, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)

Argala
     Argala Brown, 1832 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Ciconiidae (Family)
     Argala Hodgson, 1838 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Argalia
 Argalia Gray, 1846 accepted as Anadia Gray, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gymnophthalmidae (Family)
 Argalia Mulsant, 1863 accepted as Saperda Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Argania
     Argania Druce, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Argania J.J. Roemer & J.A. Schultes, 1819 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)

Argante
     Argante Stål, 1867 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Argante Gistl, 1834 accepted as Dicerca Eschscholtz, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Argas
     Argas Latreille, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Argasidae (Family)
 Argas Scouler, 1835 † accepted as Dithyrocaris Scouler in Portlock, 1843 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Archaeostraca (Order) > Rhinocarididae (Family)

Arge
     Arge Robineau-Desvoidy, 1863 accepted as Winthemia Robineau-Desvoidy, 1830 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Arge Hübner, 1819 accepted as Arge Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Arge Schrank, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Argidae (Family)

Argentina
 Argentina J. Hill, 1756 accepted as Potentilla Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
     Argentina Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Argentiniformes (Order) > Argentinidae (Family)

Argentinocupes
     Argentinocupes Martins-Neto & Gallego in Martins-Neto, Gallego & Mancuso, 2006 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cupedidae (Family)
     Argentinocupes Martins-Neto & Gallego, 1999 † accepted as Argentinocupes Martins-Neto & Gallego in Martins-Neto, Gallego & Mancuso, 2006 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cupedidae (Family)

Arges
 Arges Valenciennes in Cuvier & Valenciennes, 1840 accepted as Astroblepus Humboldt, 1805 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Astroblepidae (Family)
 Arges Goldfuss, 1839 † accepted as Ceratarges Gürich, 1901 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Lichida (Order) > Lichidae (Family)
     Arges De Haan, 1835 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pilumnidae (Family)

Argestes
 Argestes LeConte, 1849 accepted as Trichotichnus Morawitz, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Argestes G.O. Sars, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Argestidae (Family)

Argia
     Argia Gumppenberg, 1890 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Argia Rambur, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Coenagrionidae (Family)
 Argia Agassiz, 1846 accepted as Argia Agassiz, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Argina
     Argina Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Argina Forsius, 1925 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Argina Gray, 1842 accepted as Lunarca Gray, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)
     Argina Gray, 1840 accepted as Argina Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)

Arginella
     Arginella Forsius, 1926 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Arginella MacNeil, 1938 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)

Argiocnemis
     Argiocnemis Selys, 1871 accepted as Argiocnemis Selys, 1877 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Coenagrionidae (Family)
     Argiocnemis Selys, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Coenagrionidae (Family)

Argiope
     Argiope Audouin in Savigny, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
     Argiope Eudes-Deslongchamps, 1842 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Megathyrididae (Family)
     Argiope Chambers, 1873 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Argo
 Argo Herrmannsen, 1846 accepted as Argo Herrmannsen, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Discodorididae (Family)
 Argo Döderlein in Steindachner & Döderlein, 1883 accepted as Taractichthys Mead & Maul, 1958 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Bramidae (Family)

Argobuccinum
     Argobuccinum Herrmannsen, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ranellidae (Family)
 Argobuccinum H. Adams & A. Adams, 1858 accepted as Priene H. Adams & A. Adams, 1858 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ranellidae (Family)

Argoceras
     Argoceras Steinmann, 1925 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Argoceras Shimansky, 1957 † accepted as Argocheilus Shimansky, 1961 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Oncocerida (Order) > Poterioceratidae (Family)

Argocoris
     Argocoris Mayr, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Argocoris Kormilev, 1967 accepted as Pseudoargocoris Kormilev, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aradidae (Family)

Argolis
 Argolis Chapuis in Lacordaire, 1874 accepted as Argoa Lefèvre, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Argolis Boisduval, 1836 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Argolis Stål, 1861 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Argonauta
     Argonauta Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Octopoda (Order) > Argonautidae (Family)
     Argonauta G. Karsten in Engler & Prantl, 1928 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)

Argus
 Argus Scopoli, 1777 accepted as Lethe Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Argus Bohadsch, 1761 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Discodorididae (Family)
     Argus Gerhard, 1850 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
 Argus Walckenaer, 1836 accepted as Argas Latreille, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Argasidae (Family)
 Argus Scopoli, 1763 accepted as Lysandra Hemming, 1933 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
 Argus Poli, 1791 accepted as Pecten O. F. Müller, 1776 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Ostreida (Order) > Pectinidae (Family)
     Argus Gray, 1847 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Argus Lamarck, 1817 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
 Argus Temminck, 1807 accepted as Argusianus Rafinesque, 1815 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)
 Argus Boisduval, 1832 accepted as Argus Boisduval, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)

Argusa
     Argusa Emeljanov, 1999 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Argusa Kelham, 1881 accepted as Argusianus Rafinesque, 1815 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)

Argusianus
     Argusianus Rafinesque, 1815 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)
     Argusianus Gray, 1849 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Argutor
 Argutor Stephens, 1827 accepted as Argutor Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Argutor Dejean, 1821 accepted as Pterostichus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Argutor Sturm, 1826 accepted as Argutor Sturm, 1826 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Argutor Broun, 1880 accepted as Selenochilus Chaudoir, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Argya
     Argya Lesson, 1831 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Argya Selys, 1854 accepted as Argia Rambur, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Coenagrionidae (Family)

Argynnia
     Argynnia Vucetich, 1974 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Tubulinea (Class) > Arcellinida (Order) > Nebelidae (Family)
 Argynnia Haman, 1988 accepted as Argynnia Vucetich, 1974 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Tubulinea (Class) > Arcellinida (Order) > Nebelidae (Family)

Argyope
 Argyope Savigny in Audouin, 1826 accepted as Argiope Audouin in Savigny, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
 Argyope Davidson, 1850 † accepted as Megathiris d'Orbigny, 1847 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Megathyrididae (Family)

Argyopes
     Argyopes Koch, 1837 accepted as Argiope Audouin in Savigny, 1827 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
 Argyopes Latreille in Cuvier, 1829 accepted as Argiope Audouin in Savigny, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)

Argyra
 Argyra F. Noroña ex H.E. Baillon, 1861 accepted as Croton Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Argyra Macquart, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Argyrea
 Argyrea DeKay, 1842 accepted as Menidia Bonaparte, 1836 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Atheriniformes (Order) > Atherinopsidae (Family)
 Argyrea Billberg, 1820 accepted as Argyreus Scopoli, 1777 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Argyrella
     Argyrella Robineau-Desvoidy, 1863 accepted as Metopia Meigen, 1803 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
 Argyrella Naudin, 1850 accepted as Dissotis Bentham in W.J. Hooker, 1849 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Argyreus
 Argyreus Heckel in Russegger, 1843 accepted as Rhinichthys Agassiz, 1849 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
     Argyreus Scopoli, 1777 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Argyria
     Argyria Robineau-Desvoidy, 1863 accepted as Metopia Meigen, 1803 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
     Argyria Hübner, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
 Argyria Yaginuma, 1957 accepted as Chrysso Cambridge, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)

Argyritis
     Argyritis Latreille in Cuvier, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Milichiidae (Family)
     Argyritis Hübner, 1821 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Argyritis Heinemann, 1870 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)

Argyrocome
 Argyrocome Breyne ex O. Kuntze, 1891 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Argyrocome J. Gaertner, 1791 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Argyrocoris
     Argyrocoris Van Duzee, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
 Argyrocoris Meyrick, 1938 † accepted as Argyrocorys Meyrick, 1938 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)

Argyrodendron
 Argyrodendron F. von Mueller, 1858 accepted as Heritiera W. Aiton, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Argyrodendron (Endlicher) Klotzsch in Peters, 1862 accepted as Croton Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Argyrodes
     Argyrodes Simon, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
     Argyrodes Guenée, 1845 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Argyrogramma
 Argyrogramma Stichel, 1910 accepted as Argyrogrammana Strand, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)
     Argyrogramma Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Argyrohippus
     Argyrohippus Ameghino, 1902 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Argyrohippus Ameghino, 1901 † accepted as Argyrohippus Ameghino, 1901 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Argyrohyrax
     Argyrohyrax Ameghino, 1897, nom. nud. † accepted as Plagiarthrus Ameghino, 1896 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Interatheriidae (Family)
 Argyrohyrax Ameghino, 1897 † accepted as Plagiarthrus Ameghino, 1896 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Interatheriidae (Family)

Argyrolepia
     Argyrolepia Stephens, 1829 accepted as Eugnosta Hübner, 1825 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
 Argyrolepia Stephens, 1834 accepted as Eugnosta Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Argyrolepis
 Argyrolepis Agassiz, 1846 [2] accepted as Eugnosta Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
 Argyrolepis Agassiz, 1846 accepted as Leiognathus Lacepède, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Leiognathidae (Family)

Argyrops
     Argyrops M. Kimnach, 1980 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
     Argyrops Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sparidae (Family)

Argyrosetia
     Argyrosetia Stephens, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Argyrosetia Stephens, 1829 accepted as Argyrosetia Stephens, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Argyrosomus
     Argyrosomus De la Pylaie, 1835 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sciaenidae (Family)
 Argyrosomus Agassiz, 1850 accepted as Coregonus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Salmoniformes (Order) > Salmonidae (Family)

Argyrospila
     Argyrospila Rondani, 1856 accepted as Exoprosopa Macquart, 1841 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)
     Argyrospila Herrich-Schäffer, 1850-51 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Argyrotaenia
     Argyrotaenia Stephens, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Argyrotaenia Gill, 1861 accepted as Ammodytes Linnaeus, 1758 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Ammodytidae (Family)

Argyrotoza
     Argyrotoza Stephens, 1829 accepted as Argyrotoza Stephens, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Argyrotoza Stephens, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Arhagus
 Arhagus Méquignon, 1925 accepted as Microrhagus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
 Arhagus Fleutiaux, 1921 accepted as Cafolus de Bonvouloir, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)

Arhina
     Arhina Budde-Lund, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Isopoda incertae sedis (Family)
     Arhina Agassiz, 1846 accepted as Arina Robineau-Desvoidy, 1830 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sciomyzidae (Family)
 Arhina Murray, 1867 accepted as Arhinops Kirejtshuk & Bouchard, 2018 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nitidulidae (Family)

Arhipis
     Arhipis Dejean, 1836 accepted as Arhipis Dejean, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
     Arhipis Bonvouloir, 1871 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)

Arhopalus
     Arhopalus Audinet-Serville, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Arhopalus Lacordaire, 1869 accepted as Glycobius Leconte, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Arhynchotaenia
 Arhynchotaenia Saakova, 1958 accepted as Hymenolepis Weinland, 1858 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Hymenolepididae (Family)
 Arhynchotaenia Diesing, 1850 accepted as Taenia Linnaeus, 1758 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Taeniidae (Family)
 Arhynchotaenia Pagenstecher, 1877 accepted as Inermicapsifer Janicki, 1910 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Anoplocephalidae (Family)

Arhynchus
     Arhynchus Dejean, 1835 accepted as Arhynchus Dejean, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Arhynchus Shipley, 1896 accepted as Apororhynchus Shipley, 1899 · Animalia (Kingdom) > Acanthocephala (Phylum) > Archiacanthocephala (Class) > Apororhynchida (Order) > Apororhynchidae (Family)

Aria
 Aria (Persoon) Host, 1831 accepted as Sorbus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
 Aria Ragonot, 1887 accepted as Auxacia Ragonot, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Aria Pallas, 1811 accepted as Uria Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Laridae (Family)
     Aria Robineau-Desvoidy, 1830 accepted as Aria Robineau-Desvoidy, 1830 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Ariadna
     Ariadna Audouin in Savigny, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Segestriidae (Family)
 Ariadna P. Fischer, 1864 accepted as Ariadnaria Habe, 1961 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Capulidae (Family)

Ariadne
     Ariadne Doleschall, 1857 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
 Ariadne Newton, 1867 accepted as Ariadne Newton, 1867 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Ariadne Agassiz, 1845 accepted as Ariadna Audouin in Savigny, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Segestriidae (Family)
 Ariadne Urban, 1922 accepted as Phyllomelia Grisebach, 1866 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Ariadne Horsfield, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Arianites
     Arianites Arthaber, 1911 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)
     Arianites Arthaber, 1909 † accepted as Arianites Arthaber, 1911 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)

Arianta
     Arianta Beck, 1837 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Arianta Gray in Turton, 1840 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Arianta Turton, 1831 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)

Arias
 Arias accepted as Arius Valenciennes in Cuvier & Valenciennes, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ariidae (Family)
     Arias Lemaire, 1995 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)

Ariasa
     Ariasa Bolivar, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Pamphagidae (Family)
     Ariasa Distant, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)

Ariaspis
     Ariaspis Denison, 1963 † · Animalia (Kingdom) > Chordata (Phylum) > Pteraspidomorphi (Class) > Cyathaspidiformes (Order) > Cyathaspididae (Family)
     Ariaspis Wolfart, 1974 † accepted as Karslanus Özdikmen, 2009 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Dorypygellidae (Family)

Arica
 Arica White, 1847 accepted as Dilocarcinus H. Milne Edwards, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Trichodactylidae (Family)
     Arica Walker, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Aricia
     Aricia Reichenbach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
 Aricia Herrich-Schäffer, 1853 accepted as Arsenura Duncan, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
 Aricia Gray, 1832 accepted as Monetaria Troschel, 1863 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Cypraeidae (Family)
 Aricia Walker, 1855 accepted as Arsenura Duncan, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
 Aricia Savigny, 1822 accepted as Orbinia Quatrefages, 1866 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Orbiniida (Order) > Orbiniidae (Family)
 Aricia Gray, 1837 accepted as Monetaria Troschel, 1863 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Cypraeidae (Family)
     Aricia Robineau-Desvoidy, 1830 accepted as Helina Robineau-Desvoidy, 1830 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)

Aridella
     Aridella Kasparyan, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Aridella Saaristo, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Oonopidae (Family)

Ariella
 Ariella Bandel, 1998 accepted as Sinezona Finlay, 1926 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Scissurellidae (Family)
 Ariella E.-J. Gilbert in Bresadola, 1940 accepted as Amanita Persoon, 1797 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Amanitaceae (Family)
 Ariella Shasky, 1961 accepted as Arielia Shasky, 1961 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Mitromorphidae (Family)

Aries
 Aries Link, 1795 accepted as Capra Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
     Aries Brisson, 1762 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Arieticeras
     Arieticeras Seguenza, 1885 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
 Arieticeras Quenstedt, 1882 accepted as Arieticeras Quenstedt, 1882 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Arilus
     Arilus Hahn, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)
     Arilus Burmeister, 1835 accepted as Arilus Hahn, 1831 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)

Arima
     Arima Chapuis in Lacordaire, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Arima Kaye, 1901 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Arina
     Arina Robineau-Desvoidy, 1830 accepted as Arina Robineau-Desvoidy, 1830 (nomen dubium)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sciomyzidae (Family)
     Arina Walker, 1856 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Arinia
     Arinia Adams, 1856 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Diplommatinidae (Family)
     Arinia Schiner, 1864 accepted as Arina Robineau-Desvoidy, 1830 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sciomyzidae (Family)

Ariocaelatura
     Ariocaelatura Germain, 1921 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
     Ariocaelatura Thiele, 1931 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Arion
     Arion Barrande, 1846 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Arion Férussac, 1819 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Arionidae (Family)

Arionellus
     Arionellus Paetel, 1875 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Arionellus Barrande, 1850 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Agraulidae (Family)

Ariopsis
     Ariopsis Nimmo in J. Graham, 1839 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)
 Ariopsis Peyer, 1928 † accepted as Eopeyeria Whitley, 1947 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ariidae (Family)
 Ariopsis Gill, 1861 accepted as Sciades Müller & Troschel, 1849 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Ariidae (Family)

Ariphron
     Ariphron Erichson, 1842 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Ariphron Broun, 1881 accepted as Phronira Broun, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Arisemus
     Arisemus Satchell, 1955 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)
     Arisemus Hoffman & Keeton, 1960 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)

Aristaria
     Aristaria Guenée, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Aristaria Junghuhn, 1840 accepted as Themeda Forsskål, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Aristella
 Aristella (Trinius) Bertoloni, 1833 accepted as Achnatherum Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Aristella Eastman in Eastman-Zittel, 1900 † accepted as Aristerella Ulrich, 1894 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Modiomorphoida (Order) > Modiomorphoida (awaiting allocation) (Family)
 Aristella Kützing, 1834 accepted as · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)

Aristerella
     Aristerella Ulrich, 1894 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Modiomorphoida (Order) > Modiomorphoida (awaiting allocation) (Family)
     Aristerella Dubar, 1948 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)

Aristeus
     Aristeus Duvernoy, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Aristeidae (Family)
 Aristeus Castelnau, 1878 accepted as Melanotaenia Gill, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Atheriniformes (Order) > Melanotaeniidae (Family)

Aristopsis
 Aristopsis L. Catasús Guerra, 1981 accepted as Aristida Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Aristopsis Borgmeier, 1959 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Phoridae (Family)

Aristosoma
     Aristosoma Saunders, 1871 accepted as Aristosoma Saunders, 1871 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Aristosoma Thomson, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Aristostomias
     Aristostomias Zugmayer, 1913 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Stomiiformes (Order) > Stomiidae (Family)
     Aristostomias Zugmayer, 1940 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Stomiiformes (Order) > Stomiidae (Family)

Aristotelia
     Aristotelia Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Aristotelia L'Héritier, 1785-1786 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Elaeocarpaceae (Family)

Aristotelopanope
 Aristotelopanope Števčić, 2005 accepted as Aristotelopanope Števčić, 2011 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthidae (Family)
     Aristotelopanope Števčić, 2011 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthidae (Family)

Aristozoe
     Aristozoe Barrande in Bigsby, 1868 † accepted as Aristozoe Barrande, 1872 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Archaeostraca (Order) > Aristozoidae (Family)
     Aristozoe Perner, 1919 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Leperditicopida (Order) > Leperditicopida (awaiting allocation) (Family)
     Aristozoe Barrande, 1872 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Archaeostraca (Order) > Aristozoidae (Family)

Arizona
 Arizona Kauffmann & Edwards, 1952 accepted as Arizona Kauffmann & Edwards, 1952 · Bacteria (Kingdom) > Proteobacteria (Phylum) > Gammaproteobacteria (Class) > Enterobacterales (Order) > Enterobacteriaceae (Family)
     Arizona Kennicott, 1859 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Arkansaurus
     Arkansaurus Hunt & Quinn, 2018 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Saurischia (Order) > Ornithomimosauria incertae sedis (Family)
     Arkansaurus (?) Olshevsky, 1991 † accepted as (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Saurischia (Order) > Ornithomimidae (Family)

Arkoola
     Arkoola J. Walker & G.E. Stovold, 1986 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Venturiales (Order) > Venturiaceae (Family)
     Arkoola Belokobylskij, Iqbal & Austin, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Arla
     Arla Clarke, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Arla Malaise, 1957 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Armadillo
     Armadillo Cuvier, 1792 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Armadillidae (Family)
     Armadillo Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Armadillidae (Family)

Armanda
     Armanda J.M.H. Shaw, 2003 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Armanda (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Facelinidae (Family)

Armandia
     Armandia Ancey, 1883 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Armandia Filippi, 1861 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Opheliida (Order) > Opheliidae (Family)
     Armandia Blanchard, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Papilionidae (Family)
 Armandia Guiart, 1927 accepted as Grillotia Guiart, 1927 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Trypanorhyncha (Order) > Lacistorhynchidae (Family)

Armandiella
     Armandiella McIntosh, 1915 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Armandiella Ancey, 1901 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Armania
     Armania Gabunia & Dashzeveg, 1988 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Hyracodontidae (Family)
     Armania Dlusskiy, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)
     Armania Bertero ex A.P. de Candolle, 1836 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Armeniaca
 Armeniaca Westerlund, 1884 † accepted as Armenica Böttger, 1877 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
 Armeniaca Scopoli, 1754 accepted as Prunus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)

Armeria
     Armeria Willdenow, 1809 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Plumbaginaceae (Family)
 Armeria O. Kuntze, 1891 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Polemoniaceae (Family)

Armida
 Armida Gistl, 1847 accepted as Arctica Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Arcticidae (Family)
     Armida Risso, 1826 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Armigena
 Armigena Bouchard & Bousquet in Bouchard et al., 2021 accepted as Nesogena Mäklin, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Armigena Froussart, 1961 accepted as Armigena Bouchard & Bousquet in Bouchard et al., 2021 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Armiger
     Armiger Voet, 1778 accepted as Armiger Voet, 1778 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Armiger Hartmann, 1843 accepted as Gyraulus Charpentier, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)

Armigera
 Armigera accepted as Armiger Hartmann, 1843 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)
 Armigera Marples, 1956 accepted as Pholcomma Thorell, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)

Armilla
     Armilla Livanov, 1961 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Tricladida (Order) > Dendrocoelidae (Family)
     Armilla Buschmina, 1975 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Armilla Rafinesque, 1815 accepted as Armilla Rafinesque, 1815 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Armillifera
 Armillifera accepted as Armillifer Sambon, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Porocephalida (Order) > Armilliferidae (Family)
     Armillifera Fedonkin, 1980 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Arminda
     Arminda Roewer, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)
     Arminda Krauss, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Arna
     Arna Walker, 1856 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Arna Walker, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Arnaudia
     Arnaudia Fischer, 1887 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Hippuritida (awaiting allocation) (Family)
 Arnaudia A.C. Batista in A.C. Batista H. Maia, 1960 accepted as Acantharia Theissen & H. Sydow, 1918 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Venturiales (Order) > Venturiaceae (Family)

Arnaudiella
     Arnaudiella Petrak, 1927 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Microthyriales (Order) > Microthyriaceae (Family)
     Arnaudiella Vermeulen, 1996 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonitida (awaiting allocation) (Family)
     Arnaudiella Douvillé, 1907 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Lepidorbitoididae (Family)

Arnemelassa
     Arnemelassa Iredale, 1938 accepted as Arnemelassa Köhler & Bouchet, 2020 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)
     Arnemelassa Köhler & Bouchet, 2020 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)
     Arnemelassa Iredale, 1933 accepted as Arnemelassa Köhler & Bouchet, 2020 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)

Arnes
     Arnes Agassiz, 1845 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Arnes Cocteau, 1837 accepted as Arnes Cocteau, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Arnica
 Arnica Boehmer in C.G. Ludwig, 1760 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Arnica Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Arnica Parkinson, 1832 accepted as Amia Linnaeus, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Amiiformes (Order) > Amiidae (Family)

Arnoglossum
 Arnoglossum S.F. Gray, 1821 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)
     Arnoglossum Rafinesque, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Arnoldella
 Arnoldella Gozalo, 1994 † accepted as Ungerella Livental, 1948 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Myodocopida (Order) > Myodocopida (awaiting allocation) (Family)
     Arnoldella C.B. Read, 1936 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Calamopityales (Order) > Calamopityales (awaiting allocation) (Family)

Arnoldia
     Arnoldia Mayer, 1887 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Arnoldia Cassini in F. Cuvier, 1824 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Arnoldia Tarbinsky, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chrysididae (Family)
 Arnoldia D.J. Gray & G. Morgan-Jones, 1980 accepted as Arnoldiomyces G. Morgan-Jones, 1980 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Hypocreaceae (Family)
 Arnoldia Blume, 1826 accepted as Weinmannia Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Cunoniaceae (Family)
 Arnoldia A. Massalongo, 1856 accepted as Lempholemma Körber, 1855 · Fungi (Kingdom) > Ascomycota (Phylum) > Lichinomycetes (Class) > Lichinales (Order) > Lichinaceae (Family)
 Arnoldia S. Ash & W.D. Tidwell, 1986 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridophyta/Pteridospermophyta (unclassified foliage) (Class) > Pteridophyta/Pteridospermophyta (awaiting allocation) (Order) > Pteridophytes/Pteridosperms (awaiting allocation) (Family)
 Arnoldia Kieffer, 1895 accepted as Arnoldiola Strand, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
 Arnoldia Vlasenko, 1931 accepted as Arnola Strand, 1942 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Derogenidae (Family)
     Arnoldia Hovasse, 1956 † accepted as Birrimarnoldia Hovasse & Couture, 1961 † (junior homonym)· Questionable / non-biota (fossil) (Kingdom) > Pseudofossils (Phylum) > (Class) > (Order) > (Family)

Arnoldiella
     Arnoldiella Brauns, 1925 accepted as Arnoldiella Brauns, 1925 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Arnoldiella R.F. Castañeda, 1984 accepted as Mycelephas R.F. Castañeda Ruiz in Gams, Seifert & Morgan-Jones, 2009 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Arnoldiella V.V. Miller, 1928 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Cladophorales (Order) > Cladophoraceae (Family)

Arnoldina
 Arnoldina Hannibal, 1912 † accepted as Anodonta Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
     Arnoldina Jordan & Gilbert, 1919 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Arnoldiola
     Arnoldiola Semenov & Bogachev, 1940 accepted as Stalagmoptera Solsky, 1876 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Arnoldiola Strand, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Aroa
     Aroa Walker, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Aroa H. B. Baker, 1930 accepted as Aroapyrgus H. B. Baker, 1931 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Cochliopidae (Family)

Arodepus
     Arodepus Heller, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Attelabidae (Family)
 Arodepus Voss, 1922 accepted as Arodepus Heller, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Attelabidae (Family)

Aroides
 Aroides Kutorga, 1838 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Aroides Heister ex Fabricius, 1763 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)

Aromadendron
 Aromadendron Andrews ex E.G. von Steudel, 1840 accepted as Eucalyptus L'Héritier de Brutelle, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Aromadendron Blume, 1825 accepted as Magnolia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliales (Order) > Magnoliaceae (Family)

Aromia
     Aromia Nuttall, 1841 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Aromia Audinet-Serville, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aronia
     Aronia Medikus, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
 Aronia J. Mitchell, 1769 accepted as Orontium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)

Arossia
     Arossia Rasnitsyn & Jarzembowski in Rasnitsyn, Jarzembowski & Ross, 1998 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Arossia Newman, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Sessilia (Order) > Balanidae (Family)

Arotes
     Arotes Westwood in Doubleday & Westwood, 1851 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Arotes Fairmaire, 1902 accepted as Aroterus Schenkling, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)
     Arotes Gravenhorst, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Arpactus
     Arpactus Panzer, 1806 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)
 Arpactus Rafinesque, 1815 accepted as Arpactus Rafinesque, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)

Arpediopsis
 Arpediopsis Ganglbauer, 1895 accepted as Deliphrum Erichson, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Arpediopsis Cameron, 1917 accepted as Crymus Fauvel, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Arpephorus
 Arpephorus Duméril, 1851 accepted as Harpesaurus Boulenger, 1885 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Agamidae (Family)
     Arpephorus Stephens, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Arphthicarus
 Arphthicarus Zoological Record, 1995 accepted as Arphthiracarus Niedbala, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Phthiracaridae (Family)
     Arphthicarus Niedbala, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Steganacaridae (Family)

Arpidiphorus
 Arpidiphorus Latreille, 1829 accepted as Aspidiphorus Latreille, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Sphindidae (Family)
 Arpidiphorus Ziegler in Dejean, 1821 accepted as Aspidophorus Ziegler in Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Sphindidae (Family)

Arraphus
     Arraphus Angelin, 1854 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)
 Arraphus Scudder, 1882 accepted as Arhaphes Candèze, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Arrhaphes
 Arrhaphes Candèze, 1891 accepted as Arhaphes Candèze, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Arrhaphes Gemminger & Harold, 1869 accepted as Arhaphes Candèze, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Arrhenodes
 Arrhenodes Lacordaire, 1866 accepted as Estenorhinus Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Arrhenodes Schönherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Arrhenopeplus
 Arrhenopeplus Koch, 1937 accepted as Arrhenopeplus Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Arrhenopeplus Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Arrhines
 Arrhines Agassiz, 1846 accepted as Arhines Schönherr, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Arrhines Gemminger & Harold, 1871 accepted as Arhines Schönherr, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Arrhipis
 Arrhipis Agassiz, 1846 accepted as Arripis Jenyns, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Arripidae (Family)
 Arrhipis Bonvouloir, 1871 accepted as Arrhipis Bonvouloir, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)

Arrhostus
     Arrhostus Motschoulsky, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Arrhostus Gemminger & Harold, 1873 accepted as Aderpas Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Arrhostus Bergroth, 1908 accepted as Arrhostus Bergroth, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Anthocoridae (Family)

Arrojadoa
 Arrojadoa Mattfeld in Pilger, 1923 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Arrojadoa N.L. Britton & J.N. Rose, 1920 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)

Arrostus
 Arrostus Fåhraeus, 1872 accepted as Aderpas Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Arrostus Reuter, 1884 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Anthocoridae (Family)

Arsacia
     Arsacia Walker, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Arsacia Stål, 1877 accepted as Aethalochroa Wood-Mason, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Toxoderidae (Family)

Arsinoe
 Arsinoe Meyrick, 1883 accepted as Anachloris Meyrick, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Arsinoe de Laporte, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Arsinoe Rafinesque, 1815 accepted as Arsinoe Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Artacarus
     Artacarus Cook, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Schizomida (Order) > Hubbardiidae (Family)
     Artacarus Cook, 1898 accepted as Artacarus Cook, 1899 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Schizomida (Order) > Hubbardiidae (Family)

Artamus
     Artamus Koch, 1837 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Philodromidae (Family)
     Artamus Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Corvidae (Family)

Artemia
 Artemia Lesson, 1839 accepted as Artemia Lesson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Artemia Leach, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Anostraca (Order) > Artemiidae (Family)

Artemis
     Artemis Kirby & Spence, 1828 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Artemis Mulsant, 1850 accepted as Coelophora Mulsant, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)
     Artemis Thompson, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Artemis Conrad, 1831 † accepted as Dosinia Scopoli, 1777 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)

Artemisia
 Artemisia Latreille in Cuvier, 1817 accepted as Artemisia Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Anostraca (Order) > Artemiidae (Family)
     Artemisia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Artemon
     Artemon Beck, 1837 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Artemon Megerle accepted as Artemon Megerle (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Artemyja
     Artemyja Bonaparte, 1854 accepted as Artemyja Bonaparte, 1854 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Artemyja Verreaux, 1855 accepted as Artemyja Verreaux, 1855 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Artena
     Artena Conrad, 1870 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
     Artena Walker, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Arthleptrus
 Arthleptrus Burke, 1982 accepted as Atractomerus Duponchel & Chevrolat, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Arthleptrus O'Brien & Wibmer, 1982 accepted as Atractomerus Duponchel & Chevrolat, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Arthracanthus
     Arthracanthus Broun, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melyridae (Family)
 Arthracanthus Schmarda, 1852 accepted as Brachionus Pallas, 1766 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Brachionidae (Family)

Arthraxon
     Arthraxon Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Arthraxon (Eichler) Van Tieghem, 1895 accepted as Psittacanthus C.F.P. Martius, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Loranthaceae (Family)

Arthrobotrys
 Arthrobotrys (K.B. Presl) Lindley, 1846 accepted as Dryopteris Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Dryopteridaceae (Family)
     Arthrobotrys Corda, 1839 · Fungi (Kingdom) > Ascomycota (Phylum) > Orbiliomycetes (Class) > Orbiliales (Order) > Orbiliaceae (Family)

Arthrobotryum
     Arthrobotryum Cesati, 1854 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Arthrobotryum O. Rostrup, 1916 accepted as Gonyella H. Sydow & P. Sydow, 1919 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Arthrocephalus
 Arthrocephalus accepted as Antrocephalus Kirby, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chalcididae (Family)
     Arthrocephalus Ortlepp, 1925 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Ancylostomatidae (Family)

Arthroceras
     Arthroceras Williston, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Rhagionidae (Family)
     Arthroceras M. Piirainen & G. Kadereit in Piirainen et al., 2017 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Arthrochloa
 Arthrochloa J.W. Lorch, 1960 accepted as Acrachne R. Wight & Arnott ex Chiovenda, 1907 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Arthrochloa R. Brown, 1823 accepted as Holcus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Arthrocladia
 Arthrocladia Golovin, 1956 accepted as Arthrocladiella Vassilkov, 1960 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Erysiphales (Order) > Erysiphaceae (Family)
     Arthrocladia Duby, 1830 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Desmarestiales (Order) > Arthrocladiaceae (Family)

Arthrodeis
     Arthrodeis Solier, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Arthrodeis Gistl, 1848 accepted as Charitonia Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Arthrodendron
 Arthrodendron (A.C. Seward) D.H. Scott, 1900 † accepted as Arthroxylon F.D. Reed, 1952 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Equisetales (Order) > Calamitaceae (Family)
     Arthrodendron Ulrich, 1904 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Aschemocellidae (Family)

Arthrodes
     Arthrodes Koch, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)
     Arthrodes Agassiz, 1846 accepted as Arthrodeis Solier, 1834 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Arthrodesmus
 Arthrodesmus C.G. Ehrenberg, 1836 accepted as Scenedesmus Meyen, 1829 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Scenedesmaceae (Family)
 Arthrodesmus Ehrenberg ex Ralfs, 1848 accepted as Staurodesmus Teiling, 1948 · Plantae (Kingdom) > Charophyta (Phylum) > Zygnematophyceae (Class) > Desmidiales (Order) > Desmidiaceae (Family)

Arthromitus
 Arthromitus Snel et al., 1995 accepted as Candidatus Arthromitus Snel et al., 1995 · Bacteria (Kingdom) > Firmicutes (Phylum) > Clostridia (Class) > Clostridiales (Order) > Lachnospiraceae (Family)
 Arthromitus J. Leidy, 1849 accepted as Candidatus Arthromitus Snel et al., 1995 · Bacteria (Kingdom) > Firmicutes (Phylum) > Clostridia (Class) > Clostridiales (Order) > Lachnospiraceae (Family)

Arthronema
 Arthronema Ulrich, 1882 † accepted as Arthrostylus Ulrich, 1888 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Fenestrida (Order) > Fenestrida (awaiting allocation) (Family)
     Arthronema J. Komárek & J. Lukavský, 1988 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Synechococcales (Order) > Pseudanabaenaceae (Family)
     Arthronema Lindner, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
     Arthronema Eschscholtz, 1825 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Arthronema Hassall, 1845 accepted as Coleodesmium A. Borzì ex L. Geitler in A. Engler & K. Prantl, 1942 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Tolypothrichaceae (Family)
     Arthronema Eschscholtz in Kotzebue, 1828 accepted as Arthronema Eschscholtz in Kotzebue, 1828 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Arthrophyllum
     Arthrophyllum Beyrich, 1850 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Orthocerida (Order) > Lamellorthoceratidae (Family)
     Arthrophyllum Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)
 Arthrophyllum Bojer ex A.P. de Candolle, 1838 accepted as Phyllarthron A.P. de Candolle, 1839 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Bignoniaceae (Family)

Arthropodichnus
     Arthropodichnus Chiplonkar & Badwe, 1970 † (uncertain)· Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > (Family)
     Arthropodichnus Gevers in Gevers, Frakes, Edwards & Marzolf, 1971 † (uncertain)· Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > (Family)

Arthropterus
     Arthropterus Agassiz, 1843 † accepted as Arthrobatis Whitley, 1940 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Batoidea incertae sedis (Order) > Arthrobatidae (Family)
     Arthropterus McLeay in Smith, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Arthrosiphon
 Arthrosiphon Kützing, 1845 accepted as Arthrosiphon Kützing ex Frank, 1886 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Scytonemataceae (Family)
     Arthrosiphon Kützing ex Frank, 1886 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Scytonemataceae (Family)
     Arthrosiphon A.F. Weiss, 1984 † accepted as Cephalonyx A.F. Weiss, 1984 † (junior subjective synonym)· Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Oscillatoriales (Order) > Oscillatoriaceae (Family)

Arthrostenus
     Arthrostenus Schönherr, 1825 accepted as Arthrostenus Schönherr, 1826 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
     Arthrostenus Schönherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)

Arthrostictus
 Arthrostictus Rye, 1880 accepted as Athrostictus Bates, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Arthrostictus Csiki, 1932 accepted as Athrostictus Bates, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Arthrothamnus
     Arthrothamnus Ruprecht, 1848 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Laminariales (Order) > Laminariaceae (Family)
 Arthrothamnus Klotzsch & Garcke in Klotzsch, 1859 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Arthurella
     Arthurella Zebrowski, 1936 † · Fungi (Kingdom) > Chytridiomycota (Phylum) > Chytridiomycota incertae sedis (Class) > Chytridiomycota incertae sedis (Order) > Chytridiomycota incertae sedis (Family)
     Arthurella Albuquerque, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)

Arthuria
 Arthuria Klautau, Azevedo, Cóndor-Luján, Rapp, Collins & Russo, 2013 accepted as Arturia Azevedo, Padua, Moraes, Rossi, Muricy & Klautau, 2017 · Animalia (Kingdom) > Porifera (Phylum) > Calcarea (Class) > Clathrinida (Order) > Clathrinidae (Family)
 Arthuria Dall, 1882 accepted as Chaetopleura Shuttleworth, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Chaetopleuridae (Family)
     Arthuria Dall, 1881 accepted as Chaetopleura Shuttleworth, 1853 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Chaetopleuridae (Family)
 Arthuria Servain, 1891 accepted as Daudebardia Hartmann in Sturm, 1821 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Oxychilidae (Family)
     Arthuria H.S. Jackson, 1931 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Phakopsoraceae (Family)
 Arthuria Malloch, 1938 accepted as Montanarturia Miller, 1945 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Artia
     Artia Guillaumin, 1941 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
     Artia Rambur, 1844 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Artibaeus
 Artibaeus Brookes, 1828 accepted as Artibeus Leach, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Phyllostomidae (Family)
 Artibaeus Gervais, 1856 accepted as Artibeus Leach, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Phyllostomidae (Family)

Articerus
     Articerus Dalman, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Articerus Hope, 1845 accepted as Tiracerus Besuchet, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Artichnus
     Artichnus Zakharov, 1972 † (uncertain)· Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > (Family)
     Artichnus Zhang, Uchman, Chodyn & Bromley, 2008 † · Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > (Family)

Articularia
     Articularia F. von Höhnel, 1909 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Articularia Luczkowska, 1974 · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Hauerinidae (Family)

Artifex
     Artifex Kallal & Hormiga, 2018 accepted as Artiphex Kallal & Hormiga, 2022 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
 Artifex Silveira, 2008 accepted as Mischocyttarus Saussure, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)

Artigasia
     Artigasia Christie, 1934 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Hystrignathidae (Family)
     Artigasia Francis & Mones, 1966 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Dinomyidae (Family)

Artipus
     Artipus Schönherr in Sahlberg, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Artipus Schönherr, 1823, nom. nud. accepted as Artipus Schönherr in Sahlberg, 1823 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Artisia
 Artisia de Beaufort, 1939 accepted as Halichoeres Rüppell, 1835 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Labridae (Family)
     Artisia K.B. Presl in Sternberg, 1838 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cordaitales (Order) > Cordaitales (awaiting allocation) (Family)

Artomyias
     Artomyias Verreaux, 1855 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Artomyias Bonaparte, 1854 accepted as Artomyias Bonaparte, 1854 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Artotrogus
 Artotrogus Montagne in Berkeley, 1845 accepted as Pythium N. Pringsheim, 1858 · Chromista (Kingdom) > Pseudofungi (Phylum) > Oomycetes (Class) > Pythiales (Order) > Pythiaceae (Family)
     Artotrogus Boeck, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Artotrogidae (Family)

Artystona
     Artystona Bates, 1873 accepted as Artystona Bates, 1874 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Artystona Bates, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Arum
     Arum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)
 Arum Cocks, 1853 accepted as Candelabrum de Blainville, 1830 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Candelabridae (Family)
 Arum Vigurs, 1850 accepted as Candelabrum de Blainville, 1830 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Candelabridae (Family)

Arumatia
     Arumatia Oken, 1815 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Arumatia Ghirotto, 2022 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Diapheromeridae (Family)

Aruncus
     Aruncus Philippi, 1902 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Aruncus Linnaeus, 1758 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)

Arundinella
 Arundinella L. Léger & Duboscq, 1905 accepted as Arundinula L. Léger & Duboscq, 1906 · Protozoa (Kingdom) > Choanozoa (Phylum) > Ichthyosporea (Class) > Eccrinida (Order) > Eccrinidae (Family)
     Arundinella Raddi, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Arunta
     Arunta Distant, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)
     Arunta Distant, 1904 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)

Arunus
     Arunus Sengupta & Pal, 1995 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Monotomidae (Family)
     Arunus Jaikishan Singh & Khan, 1997 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)

Arwidssonia
     Arwidssonia B. Eriksson, 1974 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Xylariales (Order) > Hyponectriaceae (Family)
     Arwidssonia McIntosh, 1915 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Capitellida (Order) > Maldanidae (Family)

Aryana
     Aryana Pate, 1943 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Aryana Berti & Rapilly, 1973 accepted as Cryptocephalus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Arytaena
 Arytaena Oken, 1817 accepted as Arytaena Oken, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Arytaena Menge in Berendt, 1854 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Arytaena Scott, 1876 accepted as Arytaina Förster, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Psyllidae (Family)

Arytene
 Arytene Gray, 1858 accepted as Verpa Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Penicillidae (Family)
     Arytene Oken, 1815 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Arythaena
     Arythaena Menge, 1854 † · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Erythraeidae (Family)
 Arythaena Deshayes, 1830 accepted as Arythaena Deshayes, 1830 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Arzonella
     Arzonella Sulser, 2004 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonelliformea (awaiting allocation) (Order) > Rhynchonelliformea (awaiting allocation) (Family)
     Arzonella Pagliano & Scaramozzino, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)

Asa
 Asa Bastérot, 1825 accepted as Dosinia Scopoli, 1777 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
     Asa Leach, 1847 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Asagraea
 Asagraea Baillon, 1870 accepted as Psorothamnus Rydberg, 1919 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Asagraea Lindley, 1839 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)

Asanoa
     Asanoa Lee & Hah, 2002 · Bacteria (Kingdom) > Actinobacteria (Phylum) > Actinobacteria (Class) > Actinomycetales (Order) > Micromonosporaceae (Family)
     Asanoa Sychevskaya & Prokofyev, 2004 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Ophichthidae (Family)

Asaphes
 Asaphes K.P.J. Sprengel, 1827 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dipsacales (Order) > Caprifoliaceae (Family)
 Asaphes A.P. de Candolle, 1825 accepted as Toddalia A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Asaphes Turner, 1945 accepted as Paventia Rossi, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Asaphes Walker, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
 Asaphes Kirby, 1837 accepted as Hemicrepidius Germar, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Asaphopsoides
     Asaphopsoides Hupé, 1955 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Hungaiidae (Family)
     Asaphopsoides Hupé in Piveteau, 1953, nom. nud. † accepted as Asaphopsoides Hupé, 1955 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Hungaiidae (Family)

Asaphus
 Asaphus Desmarest, 1817 † accepted as Asaphus Brongniart in Brongniart & Desmarest, 1822 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphidae (Family)
     Asaphus Brongniart in Brongniart & Desmarest, 1822 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphidae (Family)

Asarum
     Asarum F. Archila, 2014 accepted as Dendrobium O. Swartz, 1799 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Asarum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Piperales (Order) > Aristolochiaceae (Family)

Asbestopluma
     Asbestopluma Lankester, 1882 accepted as Asbestopluma Lankester, 1882 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Cladorhizidae (Family)
     Asbestopluma Topsent, 1901 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Cladorhizidae (Family)

Asbolisia
     Asbolisia Spegazzini, 1918 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Asbolisia Batista & Ciferri, 1963 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Capnodiaceae (Family)

Asbolus
 Asbolus Bergroth, 1884 accepted as Necrodes Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Silphidae (Family)
     Asbolus Voet, 1793 accepted as Asbolus Voet, 1793 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Silphidae (Family)
     Asbolus Leconte, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Ascalabos
     Ascalabos Fairmaire, 1894 accepted as Ascalabus Fairmaire, 1893 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Ascalabos Münster, 1839 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Ascalaboidiformes (Order) > Ascalaboidae (Family)

Ascalabus
 Ascalabus Agassiz, 1846 accepted as Ascalabus Agassiz, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Ascalabus Fairmaire, 1893 accepted as Calabosca Fairmaire, 1894 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Ascalapha
 Ascalapha Anderson, 1872 accepted as Ascalapha Anderson, 1872 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Ascalapha Hübner, 1809 accepted as Ascalapha Hübner, 1809 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Ascalaphus
 Ascalaphus Lesson, 1839 accepted as Ascalaphus Lesson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Ascalaphus Morris in Wood, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Ascalaphus Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Ascalaphidae (Family)

Ascania
 Ascania Faure, 1954 accepted as Heptathrips Moulton, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)
     Ascania Crantz, 1766 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Ascarus
 Ascarus Claus, 1880 accepted as Acarus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Acaridae (Family)
 Ascarus accepted as Ascaris Linnaeus, 1758 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Ascaridae (Family)

Aschersonia
     Aschersonia Montagne, 1848 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Clavicipitaceae (Family)
 Aschersonia Endlicher, 1842 accepted as Junghuhnia Corda, 1842 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Meruliaceae (Family)

Aschistus
     Aschistus Stål, 1873 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Aschistus Förster, 1868 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Aschius
     Aschius Makhan, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)
 Aschius Makhan, 2004 accepted as Hydrochus Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)

Ascia
     Ascia Scopoli, 1777 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)
 Ascia Meigen, 1822 accepted as Neoascia Williston, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)

Ascidea
 Ascidea Linnaeus, 1767 accepted as Ascidia Linnaeus, 1767 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Ascidiidae (Family)
 Ascidea De Kay, 1843 accepted as Ascidia Linnaeus, 1767 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Ascidiidae (Family)

Ascidiella
     Ascidiella Roule, 1884 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Ascidiidae (Family)
     Ascidiella L. Grambast, 1966 † · Plantae (Kingdom) > Charophyta (Phylum) > Charophyceae (Class) > Charales (Order) > Clavatoraceae (Family)

Ascidium
 Ascidium Fée, 1824 accepted as Ocellularia G.F.W. Meyer, 1825 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Ostropales (Order) > Graphidaceae (Family)
     Ascidium Gronov, 1762 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Urochordata (awaiting allocation) (Class) > Urochordata (awaiting allocation) (Order) > Urochordata (awaiting allocation) (Family)
 Ascidium A. Braun, 1850 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Characiaceae (Family)

Asclera
 Asclera Stephens, 1839 accepted as Asclera Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Oedemeridae (Family)
 Asclera Dejean, 1834 accepted as Ischnomera Stephens, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Oedemeridae (Family)

Ascobius
     Ascobius Henneguy, 1884 · Chromista (Kingdom) > Ciliophora (Phylum) > Heterotrichea (Class) > Heterotrichida (Order) > Folliculinidae (Family)
 Ascobius Fauré-Fremiet, 1932 accepted as Ciliata Couch, 1832 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Lotidae (Family)

Ascochilus
     Ascochilus Ridley, 1896 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Ascochilus Blume, 1828 accepted as Geodorum G. Jackson in H.C. Andrews, 1811 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Ascochytites
     Ascochytites D.N. Temerevnikova-Babajan & M.G. Taslahcjan, 1973 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
     Ascochytites Barlinge & Paradkar, 1982 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Ascocrinus
     Ascocrinus Jaekel, 1918 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Ascocrinus Barrande, 1887 † accepted as Ascocystites Barrande, 1887 † · Animalia (Kingdom) > Echinodermata (Phylum) > Eocrinoidea (Class) > Ascocystitida (Order) > Ascocystitida (awaiting allocation) (Family)
     Ascocrinus Tromelin & Lebesconte, 1876 accepted as Ascocrinus Tromelin & Lebesconte, 1876 (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Ascocystis
 Ascocystis Bather, 1889 † accepted as Ascocystites Barrande, 1887 † · Animalia (Kingdom) > Echinodermata (Phylum) > Eocrinoidea (Class) > Ascocystitida (Order) > Ascocystitida (awaiting allocation) (Family)
 Ascocystis Grassé, 1953 accepted as Ascogregarina Ward, Levine & Craig, 1982 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Monocystidae (Family)

Ascolepis
 Ascolepis Thomson & Rennet, 1931 accepted as Fannyella Gray, 1872 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Scleralcyonacea (Order) > Primnoidae (Family)
     Ascolepis C.G.D. Nees ex Steudel, 1855 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)

Ascometra
     Ascometra Cholodkovskil, 1912 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Paruterinidae (Family)
 Ascometra Haeckel, 1872 accepted as Ascometra Haeckel, 1872 · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Ascomycetella
 Ascomycetella C.H. Peck, 1881 accepted as Cookella P.A. Saccardo, 1878 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Cookellaceae (Family)
 Ascomycetella Saccardo, 1886 accepted as Myriangiopsis P. Hennings, 1902 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Dothideomycetes incertae sedis (Family)

Ascon
     Ascon Haeckel, 1872 accepted as Ascon Haeckel, 1872 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Ascon Lendenfeld, 1885 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Asconema
 Asconema Leuckart, 1886 accepted as Tripius Chitwood, 1935 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Sphaerulariidae (Family)
 Asconema Schmidt, 1880 accepted as Asconema Kent, 1870 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)
     Asconema Kent, 1870 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)

Ascophora
 Ascophora Tode, 1790 accepted as Mucor Fresenius, 1850 · Fungi (Kingdom) > Zygomycota (Phylum) > Mucoromycetes (Class) > Mucorales (Order) > Mucoraceae (Family)
     Ascophora Findenegg, 1924 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Typhloplanidae (Family)

Ascopodaria
     Ascopodaria Allman, 1881 accepted as Barentsia Hincks, 1880 (nomen nudum)· Animalia (Kingdom) > Entoprocta (Phylum) > Entoprocta (awaiting allocation) (Class) > Urnatellida (Order) > Barentsiidae (Family)
     Ascopodaria Busk, 1886 (uncertain)· Animalia (Kingdom) > Entoprocta (Phylum) > Entoprocta (awaiting allocation) (Class) > Urnatellida (Order) > Barentsiidae (Family)

Ascopus
     Ascopus Marshall, 1951 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Ascopus Hsiao, 1964 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Ascorhiza
     Ascorhiza Lechtova-Trnka, 1931 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Ascorhiza Fewkes, 1889 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Ctenostomatida (Order) > Clavoporidae (Family)

Ascosoma
     Ascosoma Leuckart, 1828 (uncertain)· Animalia (Kingdom) > Sipuncula (Phylum) > Sipuncula (awaiting allocation) (Class) > Sipuncula (awaiting allocation) (Order) > Sipuncula (awaiting allocation) (Family)
     Ascosoma T. Lorenz, 1904 † (uncertain)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > Ascosomaceae (Family)

Ascospongiella
     Ascospongiella Garcia-Bellido & Rigby, 2004 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Amphidiscosida (Order) > Pelicaspongiidae (Family)
     Ascospongiella García-Bellido, 2002 † accepted as Ascospongiella García-Bellido, 2002 † (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Amphidiscosida (Order) > Pelicaspongiidae (Family)

Ascospora
 Ascospora E.M. Fries, 1825 accepted as Mycosphaerella Johanson, 1884 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Mycosphaerellaceae (Family)
     Ascospora Montagne, 1849 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Ascra
     Ascra Say, 1832 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Ascra H.W. Schott in K.P.J. Sprengel, 1827 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
     Ascra Stål, 1862 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Ascuris
 Ascuris Simon, 1897 accepted as Ascurisoma Strand, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Thomisidae (Family)
 Ascuris Haeckel, 1872 accepted as Leucosolenia Bowerbank, 1864 · Animalia (Kingdom) > Porifera (Phylum) > Calcarea (Class) > Leucosolenida (Order) > Leucosoleniidae (Family)

Ascuta
     Ascuta Forster, 1956 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Orsolobidae (Family)
     Ascuta Medvedev, 1997 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Ascyrum
 Ascyrum P. Miller, 1754 accepted as Hypericum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Hypericaceae (Family)
 Ascyrum Linnaeus, 1753 accepted as Hypericum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Hypericaceae (Family)

Asellodes
     Asellodes Stimpson, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Isopoda incertae sedis (Family)
     Asellodes Guenée, 1857 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Asellopsis
 Asellopsis Harger, 1874 accepted as Mancasellus Harger, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Asellidae (Family)
     Asellopsis Brady & Robertson, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Laophontidae (Family)

Asellus
 Asellus Geoffroy, 1767 accepted as Asellus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Asellidae (Family)
     Asellus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Asellidae (Family)
 Asellus Minding, 1832 accepted as Pollachius Nilsson, 1832 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Gadidae (Family)
 Asellus Plumier in Lacepède, 1800 accepted as Asellus Plumier in Lacepède, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Eleotridae (Family)
 Asellus Strøm, 1767 accepted as Asellus Strøm, 1767 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Gadidae (Family)
 Asellus Valenciennes, 1838 accepted as Mora Risso, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Gadidae (Family)

Asemantus
     Asemantus Blackburn, 1896 accepted as Asemopterus Prell, 1936 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Asemantus Förster, 1878 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Asemeia
     Asemeia Hampson, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Asemeia Rafinesque, 1833-1834 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Polygalaceae (Family)

Asemoblatta
 Asemoblatta Hebard, 1921 accepted as Asemoblattana Strand, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Ectobiidae (Family)
     Asemoblatta Handlirsch, 1906 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Adeloblattidae (Family)

Asemus
     Asemus Ranzani, 1817 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Asemus Schönherr, 1823 accepted as Esamus Chevrolat, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Ashtonia
     Ashtonia Vandel, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Philosciidae (Family)
     Ashtonia Airy Shaw, 1968 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)

Asiacentor
 Asiacentor Filippova, 1976 accepted as Dermacentor Koch, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Ixodidae (Family)
 Asiacentor Filippova & Panova, 1974 accepted as Dermacentor Koch, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Ixodidae (Family)

Asiatella
     Asiatella Chernova, 1972 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Ephemeroptera (awaiting allocation) (Family)
     Asiatella Repina in Repina, Khomentovskii et al., 1964 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Asida
     Asida Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Asida Hope, 1843 accepted as Isopteron Hope, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Asilicus
     Asilicus Germar in v. Münster, 1842 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Asilicus Weyenbergh, 1899 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Insecta (awaiting allocation) (Order) > Insecta (awaiting allocation) (Family)

Asilus
     Asilus Bechstein, 1802 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Sylviidae (Family)
     Asilus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Asilus Möhring, 1758 accepted as Asilus Möhring, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Motacillidae (Family)

Asinus
 Asinus Brisson, 1762 accepted as Equus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Equidae (Family)
 Asinus Gray, 1824 accepted as Equus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Equidae (Family)

Asiopertha
     Asiopertha Medvedev, 1949 accepted as Asiopertha Machatschke, 1957 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Asiopertha Machatschke, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Asiopus
     Asiopus Lopatin, 1965 accepted as Asionus Lopatin, 1988 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Asiopus Sharp in Whymper, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Asiosphegina
 Asiosphegina Stackelberg, 1953 accepted as Asiosphegina Stackelberg in Knutson, Thompson & Vockeroth, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
     Asiosphegina Stackelberg in Knutson, Thompson & Vockeroth, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)

Aslia
     Aslia Rowe, 1970 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Cucumariidae (Family)
     Aslia Ş. Yıldırımlı, 2020 accepted as Pseudopodospermum (S.J. Lipschitz & I.M. Krascheninnikov) S.I. Kuthatheladze, 1978 (junior subjective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Asmerinx
 Asmerinx Tschitschérine, 1898 accepted as Trichotichnus Morawitz, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Asmerinx Reitter, 1899 accepted as Harpalus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Asolene
 Asolene Troschel, 1838 accepted as Asolene d'Orbigny, 1838 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Ampullariidae (Family)
     Asolene d'Orbigny, 1838 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Ampullariidae (Family)

Asonus
     Asonus Yin, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Asonus Yin, 1984 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Asopella
     Asopella Sørensen, 1932 accepted as Asopella Kury, 2020 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Epedanidae (Family)
     Asopella Kury, 2020 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Epedanidae (Family)

Asopus
 Asopus Burmeister, 1834 accepted as Amyotea Ellenrieder, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
 Asopus Sørensen, 1896 accepted as Pyramidops Loman, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Pyramidopidae (Family)
     Asopus Burmeister in Silbermann, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Aspa
     Aspa Walker, 1854 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Aspa H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Bursidae (Family)

Aspalathus
 Aspalathus Amman ex O. Kuntze, 1891 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Aspalathus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Aspalax
 Aspalax Desmarest, 1804 accepted as Spalax Güldenstädt, 1770 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Spalacidae (Family)
     Aspalax Wagler, 1830 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Afrosoricida (Order) > Chrysochloridae (Family)

Aspaleomnia
     Aspaleomnia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Aspaleomnia J.M.H. Shaw, 2004 accepted as Aspaleomnia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Asparagopsis
 Asparagopsis (Kunth) Kunth, 1850 accepted as Asparagus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
     Asparagopsis Montagne, 1840 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Bonnemaisoniales (Order) > Bonnemaisoniaceae (Family)

Aspasia
     Aspasia J. Lindley, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Aspasia Dejean, 1831 accepted as Cryptobatis Eschscholtz, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Aspasia C. de Stefani, 1901 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Equisetidae (awaiting allocation) (Order) > Equisetidae (awaiting allocation) (Family)
 Aspasia Giebel, 1877 accepted as Aspasia Giebel, 1877 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Aspasia R.A. Salisbury, 1866 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)

Aspasiodes
 Aspasiodes Janse, 1958 accepted as Aspades Vari in Van & Kroon, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Aspasiodes Turner, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)

Aspasiopsis
 Aspasiopsis J.M.H. Shaw, 2004 accepted as Aspasiopsis J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Aspasiopsis J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Aspastus
     Aspastus Albers, 1850 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Bothriembryontidae (Family)
 Aspastus Péringuey, 1896 accepted as Hystrichopus Boheman, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Aspera
     Aspera Dautova, 2018 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > (Order) > (Family)
 Aspera Moench, 1794 accepted as Galium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Aspergillopsis
 Aspergillopsis Spegazzini, 1910 accepted as Aspergillus P. Micheli ex Haller, 1768 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Eurotiales (Order) > Aspergillaceae (Family)
     Aspergillopsis Sopp, 1912 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Aspergillum
 Aspergillum Lamarck, 1818 accepted as Brechites Guettard, 1770 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Penicillidae (Family)
 Aspergillum Agassiz, 1846 accepted as Aspergillum Agassiz, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Aspergillus
     Aspergillus P. Micheli ex Haller, 1768 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Eurotiales (Order) > Aspergillaceae (Family)
 Aspergillus E.M. Fries, 1832 accepted as Aspergillus P. Micheli ex Haller, 1768 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Eurotiales (Order) > Aspergillaceae (Family)
 Aspergillus Paetel, 1875 accepted as Brechites Guettard, 1770 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Clavagellidae (Family)

Asperia
 Asperia Haller, 1885 accepted as Midea Bruzelius, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Mideidae (Family)
     Asperia Semikhatov, 1978 † · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Minicolumellida (Order) > Pseudogymnosolenidae (Family)

Asperoseius
 Asperoseius Pritchard & Baker, 1962 accepted as Amblyseiulella Muma, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Phytoseiidae (Family)
     Asperoseius Chant, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Phytoseiidae (Family)
 Asperoseius Wu & Ou, 2002 accepted as Amblyseiulella Muma, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Phytoseiidae (Family)

Asperulus
 Asperulus Klein, 1776 accepted as Zingel Cloquet, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Percidae (Family)
 Asperulus Schaeffer, 1761 accepted as Zingel Cloquet, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Percidae (Family)
 Asperulus Gill, 1861 accepted as Zingel Cloquet, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Percidae (Family)
 Asperulus Walbaum, 1792 accepted as Zingel Cloquet, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Percidae (Family)

Asphaera
     Asphaera Duponchel & Chevrolat in D'Orbigny, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Asphaera Chevrolat in Dejean, 1836 accepted as Asphaera Duponchel & Chevrolat in D'Orbigny, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Aspicarpa
 Aspicarpa Lagasca, 1816 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
     Aspicarpa L.C. Richard, 1815 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)

Aspicela
     Aspicela Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Aspicela Clark, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Aspiculuris
     Aspiculuris Akhtar, 1955 (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)
     Aspiculuris Schulz, 1924 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Heteroxynematidae (Family)

Aspidella
 Aspidella E.-J. Gilbert in Bresadola, 1940 accepted as Saproamanita S.A. Redhead, A. Vizzini, D.C. Drehmel & M. Contu, 2016 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Amanitaceae (Family)
     Aspidella Billings, 1872 † · Animalia (Kingdom) > Vendobionta (Phylum) > (Class) > Aspidellomorpha (Order) > Aspidellidae (Family)

Aspidia
     Aspidia Duponchel, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Aspidia Yang & Zhang, 2001 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Aspidichthys
     Aspidichthys Newberry, 1873 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Arthrodira (Order) > Arthrodira (awaiting allocation) (Family)
     Aspidichthys Newberry, 1873, nom. nud. † accepted as Aspidichthys Newberry, 1873 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Arthrodira (Order) > Arthrodira (awaiting allocation) (Family)

Aspidioides
     Aspidioides Jaeger, 1827 † accepted as Lepidopteris W.P. Schimper, 1869 † (unavailable name)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Peltaspermales (Order) > Peltaspermaceae (Family)
     Aspidioides MacGillivray, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)

Aspidion
     Aspidion Zalessky, 1937 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Peltaspermales (Order) > Peltaspermaceae (Family)
     Aspidion Shuckard, 1840 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Aspidiophyllum
     Aspidiophyllum Thomson, 1875 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Aspidiophyllum Lesquereux, 1876 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Aspidiotes
 Aspidiotes Bouché, 1844 accepted as Aspidiotus Bouché, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
 Aspidiotes Krefft, 1864 accepted as Aspidites Peters, 1877 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Boidae (Family)
     Aspidiotes Schönherr, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Aspidiotus
     Aspidiotus Bouché, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
 Aspidiotus Peters, 1877 accepted as Aspidites Peters, 1877 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Boidae (Family)

Aspidiphorus
     Aspidiphorus Latreille, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Sphindidae (Family)
 Aspidiphorus Gistl, 1848 accepted as Agonus Bloch & Schneider, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Agonidae (Family)
     Aspidiphorus Minding, 1832 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Aspidiphorus Sturm, 1826 accepted as Aspidophorus Ziegler in Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Sphindidae (Family)

Aspidisca
 Aspidisca Clemens, 1860 accepted as Coptodisca Walsingham, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Heliozelidae (Family)
     Aspidisca Ehrenberg, 1830 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Aspidiscidae (Family)

Aspidiscus
     Aspidiscus König, 1825 † · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Scleractinia (awaiting allocation) (Family)
 Aspidiscus Norman, 1868 accepted as Aspidiscifera Strand, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Tisbidae (Family)

Aspidites
     Aspidites Berlese & Leonardi, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
 Aspidites Waagen, 1895 † accepted as Clypeoceras Eastman in Eastman-Zittel, 1913 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Meekoceratidae (Family)
     Aspidites Colla in Borson, 1829 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Dryopteridaceae (Family)
 Aspidites Göppert, 1836 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)
     Aspidites Peters, 1877 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Boidae (Family)

Aspidium
 Aspidium Agassiz, 1846 accepted as Aspidium Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Aspidium O. Swartz, 1801 accepted as Tectaria Cavanilles, 1799 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Tectariaceae (Family)

Aspidobagrus
 Aspidobagrus Bleeker, 1862 accepted as Mystus Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Bagridae (Family)
     Aspidobagrus Bleeker, 1862, nom. nud. accepted as Mystus Scopoli, 1777 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Bagridae (Family)

Aspidocephalus
 Aspidocephalus Diesing, 1851 accepted as Aspidodera Railliet & Henry, 1912 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Aspidoderidae (Family)
     Aspidocephalus Motschoulsky, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Aspidocera
 Aspidocera Schulz, 1906 accepted as Aspidocera Schulz, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Figitidae (Family)
 Aspidocera Gistl, 1848 accepted as Chaetosoma Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Aspidogaster
     Aspidogaster von Baer in Férussac, 1826 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Aspidogastrida (Order) > Aspidogastridae (Family)
 Aspidogaster Assmann, 1928 † accepted as Paralitogaster Glaessner, 1969 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Litogastridae (Family)

Aspidolites
     Aspidolites Conrad, 1841 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Aspidolites Höhne, 1922 accepted as Aspidolella Prell, 1936 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Aspidonotus
 Aspidonotus Braun in Bronn, 1893 accepted as Aspidogaster von Baer in Férussac, 1826 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Aspidogastrida (Order) > Aspidogastridae (Family)
 Aspidonotus Brullé, 1835 accepted as Aspidonotus Brullé, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Aspidonotus G.O. Sars, 1897 accepted as Aspidarachna G.O. Sars, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Munnopsidae (Family)
 Aspidonotus Voigt, 1902 accepted as Aspidiophorus Voigt, 1903 · Animalia (Kingdom) > Gastrotricha (Phylum) > (Class) > Chaetonotida (Order) > Chaetonotidae (Family)

Aspidophorus
 Aspidophorus Agassiz, 1846 accepted as Aspidophorus Ziegler in Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Sphindidae (Family)
     Aspidophorus Newberry, 1870 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Aspidophorus Obruchev, 1936 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Aspidophorus Ziegler in Dejean, 1821 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Sphindidae (Family)
 Aspidophorus accepted as Aspidiophorus Voigt, 1903 · Animalia (Kingdom) > Gastrotricha (Phylum) > (Class) > Chaetonotida (Order) > Chaetonotidae (Family)
 Aspidophorus Lacepède, 1801 accepted as Agonus Bloch & Schneider, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Agonidae (Family)

Aspidophyllum
 Aspidophyllum Ulbrich, 1922 accepted as Krapfia A.P. de Candolle, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)
 Aspidophyllum Thomson & Nicholson, 1876 accepted as Aspidophyllum Thomson & Nicholson, 1876 · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Aspidopleurus
     Aspidopleurus Pictet & Humbert, 1866, nom. nud. † accepted as Aspidopleurus Pictet & Humbert, 1866, nom. nud. † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Aulopiformes (Order) > Aspidopleuridae (Family)
 Aspidopleurus Sars, 1891 accepted as Phippsia Stebbing, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Stegocephalidae (Family)
     Aspidopleurus Pictet & Humbert, 1866 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Aulopiformes (Order) > Aspidopleuridae (Family)

Aspidoptera
     Aspidoptera Lucas, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Aspidoptera Coquillett, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Hippoboscidae (Family)

Aspidorhynchus
     Aspidorhynchus Molin, 1858 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Trypanorhyncha (Order) > Tentaculariidae (Family)
     Aspidorhynchus Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Typhlopidae (Family)
     Aspidorhynchus Agassiz, 1833 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Aspidorhynchiformes (Order) > Aspidorhynchidae (Family)

Aspidosaurus
     Aspidosaurus Broili, 1904 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Temnospondyli (Order) > Dissorophidae (Family)
     Aspidosaurus Fitzinger, 1843 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Aspidosoma
 Aspidosoma Agassiz, 1846 accepted as Aspisoma Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lampyridae (Family)
     Aspidosoma Fitzinger, 1843 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Aspidosoma Goldfuss, 1848 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Aspidosoma Lacordaire, 1857 accepted as Aspisoma Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lampyridae (Family)
     Aspidosoma Agassiz, 1846 [2] accepted as Aspisoma Dejean, 1834 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Aspidura
     Aspidura Pohlig, 1876 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Aspidura Wagler, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Aspidura Agassiz, 1835 † accepted as Aspiduriella Bolette, 1998 † · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Ophiurida (Order) > Ophiuridae (Family)

Aspila
     Aspila Stephens, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Aspila Guenée, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Aspila Fåhraeus, 1870 accepted as Prunaspila Koch, 1950 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Aspilia
     Aspilia L.M.A.A. Du Petit-Thouars, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Aspilia Rondani, 1866 accepted as Helina Robineau-Desvoidy, 1830 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)

Aspilota
 Aspilota Loew, 1873 accepted as Neaspilota Osten-Sacken, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
     Aspilota Förster, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Aspilus
     Aspilus Westwood in Schaum, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Aspilus Gray, 1864 accepted as Amyda Geoffroy, 1809 (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Trionychidae (Family)

Aspina
     Aspina Kozhanchikov, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Psychidae (Family)
     Aspina Tripathi, 1956 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)

Aspinus
     Aspinus Brandorff, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Diaptomidae (Family)
     Aspinus Hong, 1981 accepted as Amberaspinus Evenhuis, 1994 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ceratopogonidae (Family)

Aspis
 Aspis Laurenti, 1768 accepted as Aspis Laurenti, 1768 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Viperidae (Family)
     Aspis Wagler, 1830 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Aspis Nishimura, 1992 † (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > (Order) > Polycystinea (awaiting allocation) (Family)
 Aspis Agassiz, 1846 accepted as Apsis Germar, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Aspis Treitschke, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Aspisoma
     Aspisoma Dejean, 1834 accepted as Aspisoma Duponchel & Chevrolat in D'Orbigny, 1841 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Aspisoma Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lampyridae (Family)
     Aspisoma Duponchel & Chevrolat in D'Orbigny, 1841 accepted as Anaedus Blanchard, 1842 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Aspistes
 Aspistes Gistl, 1848 [2] accepted as Apistus Cuvier in Cuvier & Valenciennes, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Apistidae (Family)
     Aspistes Dana, 1852 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Aspistes Meigen, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Scatopsidae (Family)
     Aspistes Fischer de Waldheim, 1832 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Aspistes Gistl, 1848 accepted as Psammodromus Fitzinger, 1826 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Lacertidae (Family)

Aspisurus
 Aspisurus Gray in Grey, 1841 accepted as Aipysurus Lacepède, 1804 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Hydrophiidae (Family)
 Aspisurus Lacepède, 1802 accepted as Acanthurus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)

Aspleniopteris
     Aspleniopteris Sternberg, 1825 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridophyta/Pteridospermophyta (unclassified foliage) (Class) > Pteridophyta/Pteridospermophyta (awaiting allocation) (Order) > Pteridophytes/Pteridosperms (awaiting allocation) (Family)
 Aspleniopteris Fontaine, 1889 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridophyta/Pteridospermophyta (unclassified foliage) (Class) > Pteridophyta/Pteridospermophyta (awaiting allocation) (Order) > Pteridophytes/Pteridosperms (awaiting allocation) (Family)

Asplenites
 Asplenites H.R. Göppert, 1836 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)
     Asplenites Colla in Borson, 1829 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Aspleniaceae (Family)

Aspoeckiana
     Aspoeckiana Kis, 1969 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Coniopterygidae (Family)
     Aspoeckiana Holzel, 1969 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Myrmeleontidae (Family)

Aspopsis
 Aspopsis J.M.H. Shaw, 2004 accepted as Aspopsis J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Aspopsis J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Aspredo
 Aspredo Swainson, 1838 accepted as Bunocephalus Kner, 1855 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Aspredinidae (Family)
 Aspredo Gronow, 1763 accepted as Aspredo Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Aspredinidae (Family)
     Aspredo Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Aspredinidae (Family)

Asprella
 Asprella Host, 1809 accepted as Psilurus Trinius, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Asprella Schreber, 1789 accepted as Leersia O. Swartz, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Asprella Schaufuss, 1869 accepted as Conus Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Conidae (Family)

Aspris
 Aspris Adanson, 1763 accepted as Aira Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Aspris Blyth, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)

Aspro
 Aspro Commerson in Lacepède, 1802 accepted as Cheilodipterus Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Apogonidae (Family)
 Aspro Cuvier in Cuvier & Valenciennes, 1828 accepted as Zingel Cloquet, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Percidae (Family)

Assa
     Assa Tyler, 1972 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Myobatrachidae (Family)
     Assa Houttuyn, 1775 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dilleniales (Order) > Dilleniaceae (Family)
 Assa Gray, 1851 accepted as Asa Bastérot, 1825 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)

Assamia
     Assamia Dayal & Gupta, 1974 † (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Digenea (awaiting allocation) (Order) > Digenea (awaiting allocation) (Family)
     Assamia Sørensen, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Assamiidae (Family)
 Assamia Buckton, 1896 accepted as Proutista Kirkaldy, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Derbidae (Family)
     Assamia Gupta, 1955 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)

Asserador
     Asserador Maunders, 1852 accepted as Asserador Empson, 1836 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Asserador Empson, 1836 accepted as Golofa Hope, 1838 (nomen oblitum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Assiminopsis
 Assiminopsis Locard, 1897 accepted as Benthonella Dall, 1889 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)
     Assiminopsis Habe, 1942 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Assimineidae (Family)

Assula
 Assula Schumacher, 1817 accepted as Scaphander Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Scaphandridae (Family)
     Assula Ehrenberg, 1861 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Assulina
     Assulina Ehrenberg, 1872 · Chromista (Kingdom) > Cercozoa (Phylum) > Imbricatea (Class) > Euglyphida (Order) > Assulinidae (Family)
 Assulina Leidy, 1879 accepted as Assulina Ehrenberg, 1872 · Chromista (Kingdom) > Cercozoa (Phylum) > Imbricatea (Class) > Euglyphida (Order) > Assulinidae (Family)
 Assulina Bronn in Bronn & Roemer, 1854 accepted as Assilina d'Orbigny in Sagra, 1839 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Nummulitidae (Family)

Asta
     Asta Walker, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Asta Klotzsch ex O.E. Schulz, 1933 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Astacobdella
     Astacobdella Moquin-Tandon, 1846 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Hirudinoidea (awaiting allocation) (Order) > Hirudinoidea (awaiting allocation) (Family)
     Astacobdella Diesing, 1850 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Temnocephalidae (Family)

Astacops
     Astacops Bernhauer, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Astacops Boisduval in d'Urville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)

Astacopsis
     Astacopsis Huxley, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Parastacidae (Family)
 Astacopsis Haswell, 1882 accepted as Euastacus Clark, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Parastacidae (Family)

Astacus
     Astacus Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Astacidae (Family)
 Astacus Borlase, 1758 accepted as Astacus Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Astacidae (Family)

Astarte
     Astarte de Blainville, 1828 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Astarte † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Astarte J. Sowerby, 1816 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Astartidae (Family)

Astartea
 Astartea van der Maelen, 1835 accepted as Astarte J. Sowerby, 1816 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Astartidae (Family)
     Astartea A.P. de Candolle, 1828 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Astartella
     Astartella Hall & Whitney, 1858 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Cycloconchidae (Family)
 Astartella Filatova, 1958 accepted as Astarte J. Sowerby, 1816 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Astartidae (Family)

Astasia
     Astasia Scudder, 1869 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Astasia Dujardin, 1841 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Peranemea (Class) > Natomonadida (Order) > Astasiidae (Family)
     Astasia C.G. Ehrenberg, 1830 accepted as (nomen nudum)· Protozoa (Kingdom) > Euglenozoa (Phylum) > Euglenophyceae (Class) > Euglenida (Order) > Euglenidae (Family)

Astasiella
     Astasiella B.V. Skvortzov, 1958 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Peranemea (Class) > Natomonadida (Order) > Astasiidae (Family)
 Astasiella Michajłow, 1964 accepted as Parastasiella Michajłow, 1965 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Euglenophyceae (Class) > Euglenida (Order) > Embryocolidae (Family)

Astata
     Astata Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)
 Astata de Chaudoir, 1871 accepted as Poecilothais Maindron, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Astathes
 Astathes Newman, 1842 accepted as Tetraophthalmus Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Astathes Gistl, 1848 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Astathes Gistl, 1848 accepted as Microcodon Ehrenberg, 1830 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Microcodidae (Family)

Astathmetus
     Astathmetus Bates, 1873 accepted as Astathmetus Bates, 1874 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Astathmetus Bates, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Astatus
     Astatus Panzer in Panzer (Herrich-Schaeffer), 1801 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Astatus Latreille, 1796 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)
     Astatus Agassiz, 1846 accepted as Hastatis Buquet, 1857 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Astelma
     Astelma R. Brown ex Ker-Gawler, 1821 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Astelma Schlechter, 1913 accepted as Papuastelma Bullock, 1965 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Astemma
 Astemma Lessing, 1832 accepted as Monactis Kunth in Humboldt, Bonpland & Kunth, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Astemma Amyot, 1846 accepted as Astemma Amyot, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Capsidae (Family)
     Astemma Lepeletier & Serville, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Ceratocombidae (Family)
     Astemma Örsted, 1843 · Animalia (Kingdom) > Nemertea (Phylum) > Palaeonemertea (Class) > (Order) > Cephalothricidae (Family)

Astenus
 Astenus Stephens, 1833 accepted as Astenus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Astenus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Astenus Lynch Arribálzaga, 1884 accepted as Stenus Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Astephanus
     Astephanus R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
     Astephanus Denis, 1926 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Entomobryomorpha (Order) > Isotomidae (Family)

Aster
     Aster Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Aster Swainson, 1836 accepted as Astur Lacepède, 1799 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)

Asteracanthium
 Asteracanthium Brandt, 1851 accepted as Asterias Linnaeus, 1758 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Asteriidae (Family)
 Asteracanthium Agassiz, 1846 accepted as Asteracanthion Müller & Troschel, 1840 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Asteriidae (Family)

Asteracanthus
     Asteracanthus Agassiz, 1837 † · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Hybodontiformes (Order) > Hybodontidae (Family)
     Asteracanthus Agassiz, 1836 † accepted as Asteracanthus Agassiz, 1836 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Hybodontiformes (Order) > Hybodontidae (Family)

Asteranthus
 Asteranthus C.P.J. Sprengel, 1825 accepted as Asteranthos Desfontaines, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Lecythidaceae (Family)
 Asteranthus S.F.L. Endlicher, 1837 accepted as Homalium N.J. Jacquin, 1760 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Asterella
 Asterella (P.A. Saccardo) P.A. Saccardo, 1891 accepted as Asterina Léveillé, 1845 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Asterinales (Order) > Asterinaceae (Family)
 Asterella Hara, 1936 accepted as Astrosphaeriella H. Sydow & P. Sydow, 1913 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Astrosphaeriellaceae (Family)
     Asterella Sollas, 1886 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)
     Asterella Palisot de Beauvois in F. Cuvier, 1805 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Aytoniaceae (Family)

Asteria
 Asteria Fauvel, 1889 accepted as Sunius Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Asteria d'Orbigny, 1850 accepted as Asteria d'Orbigny, 1850 (nomen dubium)· Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Ophiuroidea (awaiting allocation) (Order) > Ophiuroidea (awaiting allocation) (Family)
 Asteria Linnaeus, 1767 accepted as Asterias Linnaeus, 1758 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Asteriidae (Family)
 Asteria Müller, 1775 accepted as Asterias Linnaeus, 1758 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Asteriidae (Family)
     Asteria Felder, 1874 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Asteriacites
     Asteriacites Schlotheim, 1820 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata incertae sedis (Class) > (Order) > Asteriacitidae (Family)
 Asteriacites Schlotheim, 1822 † accepted as Actinocyclina Gümbel, 1870 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Discocyclinidae (Family)

Asterias
     Asterias Morris in Wood, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Asterias Linnaeus, 1758 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Asteriidae (Family)
     Asterias Borkhausen, 1796 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
     Asterias Agassiz, 1836 · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Comatulida (Order) > Comasteridae (Family)

Asteriatites
 Asteriatites Schlotheim, 1813 [2] † accepted as Asterocyclina Gümbel, 1870 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Orbitoididae (Family)
 Asteriatites Schlotheim, 1813 † accepted as Saccocoma Agassiz, 1836 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Roveacrinida (Order) > Saccocomidae (Family)

Asteridium
 Asteridium (P.A. Saccardo) Spegazzini ex P.A. Saccardo, 1891 accepted as Meliola E.M. Fries, 1825 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Meliolales (Order) > Meliolaceae (Family)
     Asteridium M. Moczydlowska, 1991 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Asterigeron
     Asterigeron P.A. Rydberg, 1917 accepted as Erigeron Linnaeus, 1753 (junior subjective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Asterigeron N.N. Tzvelev, 1994 accepted as Asterron I. Olshanskyi, 2022 (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Asterina
     Asterina Nardo, 1834 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Spinulosida (Order) > Asterinidae (Family)
     Asterina Léveillé, 1845 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Asterinales (Order) > Asterinaceae (Family)

Asterinites
     Asterinites Doubinger & D. Pons, 1973 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
     Asterinites Krassilov, 1967 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
     Asterinites Doubinger & D. Pons ex Kalgutkar & Jansonius, 2000 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Asteriscium
 Asteriscium Hilpert, 1933 accepted as Trichostomopsis Cardot, 1909 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)
     Asteriscium Chamisso & D.F.L. Schlechtendal, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Asteriscium A.K.J. Corda, 1839 accepted as Tetraedron Kützing, 1845 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Hydrodictyaceae (Family)

Asteriscus
     Asteriscus Ehrenberg, 1842 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Asteriscus Kowalski, 1983 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)
 Asteriscus Müller & Troschel, 1842 accepted as Anseropoda Nardo, 1834 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Spinulosida (Order) > Asterinidae (Family)
     Asteriscus P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Asteriza
     Asteriza Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Asteriza Boheman, 1854 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Asterocalyx
     Asterocalyx Ettingshausen, 1888 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dioscoreales (Order) > Dioscoreaceae (Family)
     Asterocalyx Moret, 1926 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Lithistida (Order) > Lithistida (awaiting allocation) (Family)
     Asterocalyx F. von Höhnel, 1912 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Sclerotiniaceae (Family)

Asterocarpus
 Asterocarpus H.R. Göppert, 1836 † accepted as Asterotheca K.B. Presl ex Corda, 1845 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Marattiales (Order) > Asterothecaceae (Family)
 Asterocarpus Ecklon & Zeyher, 1835 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Asteroceras
 Asteroceras Lyman, 1879 accepted as Astroceras Lyman, 1879 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Euryalidae (Family)
     Asteroceras Hyatt, 1867 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Arietitidae (Family)

Asterochaete
 Asterochaete (Patouillard) Bondartsev & Singer, 1941 accepted as Echinochaete D.A. Reid, 1963 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Polyporaceae (Family)
     Asterochaete C.G.D. Nees, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)

Asterochiton
 Asterochiton Turczaninow, 1852 accepted as Thomasia J. Gay, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Asterochiton Maskell, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aleyrodidae (Family)

Asterochlaena
 Asterochlaena Garcke, 1850 accepted as Pavonia Cavanilles, 1786 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Asterochlaena Corda, 1845 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Zygopteridales (Order) > Zygopteridaceae (Family)

Asterococcus
 Asterococcus Borrel, Dujardin-Beaumetz, Jeantet & Jouan, 1910 accepted as Asterococcus Borrel, Dujardin-Beaumetz, Jeantet & Jouan, 1910 · Bacteria (Kingdom) > Tenericutes (Phylum) > Mollicutes (Class) > Mycoplasmatales (Order) > Mycoplasmataceae (Family)
     Asterococcus Scherffel, 1908 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Palmellopsidaceae (Family)
     Asterococcus Borkhsenius, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cerococcidae (Family)

Asterocoma
     Asterocoma Gray, 1840 accepted as Asterocoma Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Asterocoma Gray, 1848 accepted as Asterocoma Gray, 1848 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Asterocrinus
     Asterocrinus Münster, 1839 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)
 Asterocrinus Lyon, 1857 † accepted as Pterotocrinus Lyon & Casseday, 1860 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Monobathrida (Order) > Monobathrida (awaiting allocation) (Family)

Asterocystis
 Asterocystis Gobi, 1879 accepted as Asterocytis (Hansgirg) Gobi ex F. Schmitz, 1896 · Plantae (Kingdom) > Rhodophyta (Phylum) > Stylonematophyceae (Class) > Stylonematales (Order) > Stylonemataceae (Family)
     Asterocystis Haeckel, 1896 † · Animalia (Kingdom) > Echinodermata (Phylum) > Diploporita (Class) > Diploporita (awaiting allocation) (Order) > Diploporita (awaiting allocation) (Family)
 Asterocystis De Wildeman, 1893 accepted as Olpidium (A. Braun) J. Schröter in Cohn, 1886 · Fungi (Kingdom) > Chytridiomycota (Phylum) > Chytridiomycetes (Class) > Olpidiales (Order) > Olpidiaceae (Family)

Asteroderma
     Asteroderma Schrammen, 1901 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
 Asteroderma Perrier, 1888 accepted as Anasterias Perrier, 1875 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Asteriidae (Family)

Asterodiscus
     Asterodiscus Zalessky, 1937 † accepted as Peltaspermum T.M. Harris, 1937 † (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Peltaspermales (Order) > Peltaspermaceae (Family)
 Asterodiscus Schafhäutl, 1863 † accepted as Asterocyclina Gümbel, 1870 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Asterocyclinidae (Family)
 Asterodiscus H. Voglmayr & W.M. Jaklitsch in Voglmayr et al., 2016 accepted as Stigmatodiscus H. Voglmayr & W.M. Jaklitsch in Voglmayr et al., 2016 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Stigmatodiscales (Order) > Stigmatodiscaceae (Family)
     Asterodiscus A.S. Johnson, 1852 · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)
 Asterodiscus Gray, 1847 accepted as Asterodiscides A. M. Clark, 1974 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Valvatida (Order) > Asterodiscididae (Family)
     Asterodiscus Ehrenberg, 1839 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Asterodon
     Asterodon Münster, 1841 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Asterodon Patouillard, 1894 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Hymenochaetales (Order) > Hymenochaetaceae (Family)
 Asterodon Perrier, 1891 accepted as Odontaster Verrill, 1880 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Valvatida (Order) > Odontasteridae (Family)

Asteroides
 Asteroides Puntoni & Leonardi, 1935 accepted as Nocardia Trevisan, 1889 (Approved Lists, 1980) · Bacteria (Kingdom) > Actinobacteria (Phylum) > Actinobacteria (Class) > Actinomycetales (Order) > Nocardiaceae (Family)
     Asteroides P. Miller, 1754 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Asteroides Agassiz, 1844 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Asterolepis
     Asterolepis Razowski, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
 Asterolepis Eichwald, 1840 [2] † accepted as Asterolepis Eichwald, 1840 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Antiarcha (Order) > Asterolepididae (Family)
     Asterolepis Eichwald, 1840 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Antiarcha (Order) > Asterolepididae (Family)

Asteromorpha
     Asteromorpha Lütken, 1869 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Euryalidae (Family)
     Asteromorpha Xing in Xing, Ding, Luo, He & Wang, 1984 † (uncertain)· Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Asteromyces
     Asteromyces Moreau & M. Moreau ex Hennebert, 1962 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Asteromyces Moreau, 1941 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Asteromys
     Asteromys Ameghino, 1897 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Eocardiidae (Family)
     Asteromys Ameghino, 1897, nom. nud. † accepted as Asteromys Ameghino, 1897 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Eocardiidae (Family)

Asteronema
     Asteronema Delépine & Asensi, 1975 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Scytothamnales (Order) > Asteronemataceae (Family)
     Asteronema V.B.A. Trevisan, 1845 · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Asterope
 Asterope Claparède, 1870 accepted as Torrea Quatrefages, 1850 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Alciopidae (Family)
 Asterope Philippi, 1840 accepted as Asteropina Strand, 1928 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Myodocopida (Order) > Cylindroleberididae (Family)
 Asterope Hübner, 1819 accepted as Temenis Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Asterope Müller & Troschel, 1840 accepted as Asteropsis Müller & Troschel, 1840 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Valvatida (Order) > Asteropseidae (Family)

Asteropella
     Asteropella Kornicker, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Myodocopida (Order) > Cylindroleberididae (Family)
     Asteropella Poulsen, 1965 accepted as Asteropella Poulsen, 1965 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Myodocopida (Order) > Cylindroleberididae (Family)

Asterophora
     Asterophora Ditmar, 1809 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Lyophyllaceae (Family)
     Asterophora Léger, 1892 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Actinocephalidae (Family)

Asterophyllites
     Asterophyllites A.T. Brongniart, 1822 † accepted as Annularia Sternberg, 1821 † (unavailable name)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Equisetales (Order) > Calamitaceae (Family)
     Asterophyllites A.T. Brongniart, 1828 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Equisetales (Order) > Calamitaceae (Family)

Asteropsis
     Asteropsis Müller & Troschel, 1840 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Valvatida (Order) > Asteropseidae (Family)
 Asteropsis Perrier, 1875 accepted as Petricia Gray, 1847 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Valvatida (Order) > Asteropseidae (Family)
 Asteropsis Cotteau, 1883 † accepted as Lambertechinus Cossmann, 1899 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Phymosomatoida (Order) > Phymosomatidae (Family)
     Asteropsis Gonz. Fragoso, 1917 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Asteropsis Lessing, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Asteroptychius
     Asteroptychius Agassiz, 1841 † accepted as Asteroptychius M'Coy, 1848 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Ctenacanthiformes (Order) > Ctenacanthiformes (awaiting allocation) (Family)
     Asteroptychius Agassiz, 1843 † accepted as Asteroptychius M'Coy, 1848 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Ctenacanthiformes (Order) > Ctenacanthiformes (awaiting allocation) (Family)
     Asteroptychius M'Coy, 1848 † · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Ctenacanthiformes (Order) > Ctenacanthiformes (awaiting allocation) (Family)

Asteroseris
     Asteroseris de Fromentel in d'Orbigny, 1867 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Asteroseris Verril, 1901 accepted as Gardineroseris Scheer & Pillai, 1974 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Agariciidae (Family)

Asterosoma
     Asterosoma E. Otto, 1854 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Asterosoma Grube, 1867 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Asterostemma
     Asterostemma Ameghino, 1889 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cingulata (Order) > Glyptodontidae (Family)
     Asterostemma Decaisne, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Asterostoma
     Asterostoma L. Agassiz in Agassiz & Desor, 1847 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Asterostomatidae (Family)
 Asterostoma Meyrick, 1935 accepted as Phepsalostoma Meyrick, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Elachistidae (Family)
 Asterostoma Blume, 1849 accepted as Osbeckia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Asterotheca
 Asterotheca I. Hino, 1938 accepted as Astrosphaeriella H. Sydow & P. Sydow, 1913 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Astrosphaeriellaceae (Family)
     Asterotheca K.B. Presl ex Corda, 1845 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Marattiales (Order) > Asterothecaceae (Family)
 Asterotheca Gilbert, 1915 accepted as Bathyagonus Gilbert, 1890 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Agonidae (Family)

Asterothrix
     Asterothrix Cassini in F. Cuvier, 1827 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Asterothrix F.T. Kützing, 1843 · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Asterothyrium
     Asterothyrium J. Müller Arg., 1890 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Ostropales (Order) > Asterothyriaceae (Family)
 Asterothyrium Hennings, 1904 accepted as Septothyrella F. von Höhnel, 1911 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Asthenes
     Asthenes Reichenbach, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Furnariidae (Family)
 Asthenes Gemminger & Harold, 1873 accepted as Asthenes Gemminger & Harold, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Asthenia
     Asthenia Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
 Asthenia Westwood, 1842 accepted as Blepharicera Macquart, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Blephariceridae (Family)
 Asthenia Westwood in Duncan, 1841 accepted as Asthenidia Westwood, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
     Asthenia Rondani, 1856 accepted as Asthenia Westwood, 1842 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Blephariceridae (Family)

Asthenoctenus
     Asthenoctenus Simon, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Ctenidae (Family)
     Asthenoctenus Arnold, 1937 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Asthenognathus
 Asthenognathus Bocourt, 1884 accepted as Asthenognathus Bocourt, 1884 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Asthenognathus Stimpson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Varunidae (Family)
 Asthenognathus Broom, 1915 † accepted as Asthenognathus Broom, 1915 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Asthenohymen
     Asthenohymen Tillyard, 1924 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diaphanopterodea (Order) > Asthenohymenidae (Family)
 Asthenohymen Zalessky, 1939 † accepted as Asthenohymen Tillyard, 1924 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diaphanopterodea (Order) > Asthenohymenidae (Family)

Asthenurus
 Asthenurus Tickell, 1865 accepted as Bregmaceros Thompson, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Bregmacerotidae (Family)
     Asthenurus Swainson, 1827 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Asthraeus
 Asthraeus Imhoff, 1856 accepted as Astraeus Laporte & Gory, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Asthraeus Laporte & Gory, 1838 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Astia
     Astia Keyserling in Koch, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Astia Looss, 1899 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Plagiorchiidae (Family)
 Astia Agassiz, 1846 accepted as Asteia Meigen, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asteiidae (Family)

Asticta
     Asticta Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Asticta Newman, 1838 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Asticta Wasmann, 1916 accepted as Felda Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Astilbus
     Astilbus Stephens · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Astilbus Dillwyn, 1829 accepted as Drusilla Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Astiria
 Astiria J. Lindley, 1844 accepted as Ruizia Cavanilles, 1786 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Astiria Enderlein, 1920 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Astoma
     Astoma Lioy, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Astoma Voigt in Cuvier, 1843 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Astoma S.F. Gray, 1821 accepted as Sclerotium Tode, 1790 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Typhulaceae (Family)
 Astoma Goodsir, 1844 accepted as Echinococcus Rudolphi, 1801 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Taeniidae (Family)
 Astoma A.P. de Candolle, 1829 accepted as Astomaea H.G.L. Reichenbach, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Astoma Latreille, 1804 accepted as Astoma Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Astomella
     Astomella Thirumalachar, 1947 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Astomella Oken, 1815 accepted as Astomella Lamarck, 1816 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Acroceridae (Family)
     Astomella Lamarck, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Acroceridae (Family)
     Astomella Schmidt, 1879 accepted as Astomella Schmidt, 1879 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Astomum
     Astomum Schlotthauber, 1860 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
     Astomum Hampe, 1837 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Archidiales (Order) > Archidiaceae (Family)

Astomus
     Astomus Jouin, 1979 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Protodrilida (Order) > Protodrilidae (Family)
 Astomus Agassiz, 1845 accepted as Astomus Agassiz, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Astracantha
     Astracantha Haecker, 1906 · Chromista (Kingdom) > Cercozoa (Phylum) > Thecofilosea (Class) > Eodarida (Order) > Astracanthidae (Family)
 Astracantha D. Podlech, 1983 accepted as Astragalus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Astraea
     Astraea Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Turbinidae (Family)
     Astraea Klotzsch, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Astraea Hartman, 1881 accepted as Astraea Hartman, 1881 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Astraea Oken, 1815 accepted as Astraea Oken, 1815 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Faviidae (Family)
 Astraea J.C. Schauer, 1843 accepted as Thryptomene Endlicher, 1839 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Astraea Lamarck, 1801 accepted as Astrea Lamarck, 1801 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Rhizangiidae (Family)
     Astraea Mohnike, 1873 accepted as Astraeella Krikken, 1982 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Astraeacis
 Astraeacis Quenstedt, 1880 accepted as Astreopora Blainville, 1830 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Acroporidae (Family)
 Astraeacis Milne-Edwards, 1860 † accepted as Astraeacis Milne-Edwards, 1860 † · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Acroporidae (Family)

Astraeus
 Astraeus Saunders, 1871 accepted as Astraeus Saunders, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Astraeus Laporte & Gory, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Astraeus A.P. Morgan, 1889 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Boletales (Order) > Diplocystidiaceae (Family)

Astragalus
     Astragalus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Astragalus Ostergaard, 1935 accepted as Astralium Link, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Turbinidae (Family)

Astralium
     Astralium Link, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Turbinidae (Family)
     Astralium Philippi, 1847 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Astraphidokrates
     Astraphidokrates Gistl, 1848 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Astraphidokrates Gistl, 1848 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)

Astratus
     Astratus McLachlan, 1874 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)
 Astratus Fairmaire, 1904 accepted as Colonnellia Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Astrea
     Astrea Lamarck, 1801 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Merulinidae (Family)
 Astrea Link, 1807 † accepted as Astraea Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Turbinidae (Family)

Astrella
 Astrella Perrier in Milne-Edwards, 1882 accepted as Luidia Forbes, 1839 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Platyasterida (Order) > Luidiidae (Family)
 Astrella Sollas, 1886 accepted as Stelletta Schmidt, 1862 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)
 Astrella accepted as Asterella Palisot de Beauvois in F. Cuvier, 1805 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Aytoniaceae (Family)

Astreopora
     Astreopora M'Coy, 1844 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Astreopora Blainville, 1830 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Acroporidae (Family)

Astridia
     Astridia Dinter, 1926 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
     Astridia Kiriakoff, 1948 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Astrochema
 Astrochema Oerstedt & Lütken, 1856 accepted as Asteroschema Örstedt & Lütken in Luetken, 1856 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Asteroschematidae (Family)
 Astrochema Koehler, 1904 accepted as Asteroschema Örstedt & Lütken in Luetken, 1856 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Asteroschematidae (Family)

Astrococcus
     Astrococcus Greeff, 1873 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Spumellaria (awaiting allocation) (Family)
     Astrococcus Bentham, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Astrocoma
     Astrocoma de Blainville, 1830 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Astrocoma N.M.J. de Necker, 1790 accepted as Staavia Dahl, 1787 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Bruniales (Order) > Bruniaceae (Family)

Astrocrinites
     Astrocrinites Austin, 1843 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Astrocrinites Koninck, 1854 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Astrocrinites Mather, 1843 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Astrocrinites Conrad, 1840-41 † · Animalia (Kingdom) > Echinodermata (Phylum) > Blastoidea (Class) > Fissiculata (Order) > Fissiculata (awaiting allocation) (Family)

Astrocrinus
     Astrocrinus Morris, 1843 † · Animalia (Kingdom) > Echinodermata (Phylum) > Blastoidea (Class) > Fissiculata (Order) > Fissiculata (awaiting allocation) (Family)
     Astrocrinus Austin, 1848 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Astrocyclus
     Astrocyclus Ludwig, 1866 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Astrocyclus Döderlein, 1911 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Gorgonocephalidae (Family)

Astrodactylus
 Astrodactylus Hogg, 1839 accepted as Astrodactylus Hogg, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
 Astrodactylus Döderlein, 1911 accepted as Astroglymma Döderlein, 1927 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Gorgonocephalidae (Family)

Astrodia
     Astrodia Verrill, 1900 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Asteronychidae (Family)
     Astrodia Verrill, 1899 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Asteronychidae (Family)

Astrodiscus
     Astrodiscus Ludwig, 1866 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Astrodiscus Schulze, 1875 accepted as Astrorhiza Sandahl, 1858 · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Astrorhizidae (Family)

Astrodon
     Astrodon Leidy, 1865 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Saurischia (Order) > Brachiosauridae (Family)
     Astrodon Johnston, 1859 † accepted as Astrodon Leidy, 1865 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Saurischia (Order) > Brachiosauridae (Family)
 Astrodon Gregory in Lankester, 1900 accepted as Astroclon Lyman, 1879 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Gorgonocephalidae (Family)

Astrodontium
     Astrodontium Schwägrichen, 1824 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Leucodontaceae (Family)
 Astrodontium Dozy & Molkenboer, 1844 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Brachytheciaceae (Family)

Astrodoras
     Astrodoras Bleeker, 1862, nom. nud. accepted as Astrodoras Bleeker, 1862 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Doradidae (Family)
     Astrodoras Bleeker, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Doradidae (Family)

Astrogonium
     Astrogonium R.H. Francé, 1894 (uncertain)· Protozoa (Kingdom) > Euglenozoa (Phylum) > Euglenophyceae (Class) > Euglenophyceae (awaiting allocation) (Order) > Euglenophyceae (awaiting allocation) (Family)
 Astrogonium Müller & Troschel, 1842 accepted as Goniaster L. Agassiz, 1836 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Valvatida (Order) > Goniasteridae (Family)
     Astrogonium Francé, 1893 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Astroides
     Astroides Quoy & Gaimard, 1827 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Dendrophylliidae (Family)
 Astroides Agassiz, 1846 accepted as Astroides Agassiz, 1846 · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Astroites
     Astroites Walch, 1775 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Dendrophylliidae (Family)
     Astroites Guettard, 1770 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Astrolepis
     Astrolepis Eichwald, 1840 † accepted as Asterolepis Eichwald, 1840 † (misspelling - incorrect original spelling)· Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Antiarcha (Order) > Asterolepididae (Family)
     Astrolepis D.M. Benham & M.D. Windham, 1992 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)

Astronia
     Astronia Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
 Astronia Korde, 1990 † accepted as Edelsteinia A.G. Vologdin, 1940 † · Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > Coralomorpha (Order) > Tannuolaiidae (Family)

Astronoides
 Astronoides Saidova, 1975 accepted as Pacinonion Vella, 1962 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Nonionidae (Family)
 Astronoides Burmistrova, 1974 accepted as Pacinonion Vella, 1962 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Nonionidae (Family)

Astropecten
     Astropecten Gray, 1840 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Paxillosida (Order) > Astropectinidae (Family)
     Astropecten Schultze, 1760 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Astrophis
     Astrophis Fitzinger, 1861 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Astrophis Milne-Edwards, 1881 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Astrophyllum
 Astrophyllum J. Torrey in Torrey & A. Gray, 1857 accepted as Choisya Kunth in Humboldt, Bonpland & Kunth, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
     Astrophyllum Wedekind, 1924 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Astrophyllum S.O. Lindberg, 1878 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryales (Order) > Mniaceae (Family)

Astrophysus
 Astrophysus Günther, 1864 accepted as Asterophysus Kner, 1858 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Auchenipteridae (Family)
 Astrophysus Bleeker, 1858 accepted as Asterophysus Kner, 1858 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Auchenipteridae (Family)

Astrophyton
     Astrophyton Fleming, 1828 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Gorgonocephalidae (Family)
     Astrophyton G. Lawrence accepted as Astrophytum Lemaire, 1839 (misspelling - incorrect subsequent spelling)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)
     Astrophyton Schultze, 1760 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Gorgonocephalidae (Family)

Astrophytum
     Astrophytum Lemaire, 1839 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)
 Astrophytum Agassiz, 1846 accepted as Astrophytum Agassiz, 1846 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Gorgonocephalidae (Family)

Astropodium
 Astropodium Ure, 1793 accepted as Astropodium Ure, 1793 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Astropodium Defrance, 1816 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Astropus
 Astropus Gray, 1840 accepted as Archaster Müller & Troschel, 1840 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Valvatida (Order) > Archasteridae (Family)
     Astropus K.P.J. Sprengel, 1822 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Astrorhizopsis
     Astrorhizopsis de Folin, ? 1885 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Astrorhizopsis de Folin, ? 1882 accepted as Astrorhizopsis de Folin, ? 1882 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Astrospongia
     Astrospongia Etallon, 1859 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Astrospongia Gray, 1867 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Astrosporina
 Astrosporina J. Schröter in Cohn, 1889 accepted as Inocybe (E.M. Fries) E.M. Fries, 1863 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Inocybaceae (Family)
     Astrosporina S. Imai, 1938 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Inocybaceae (Family)

Astrotheca
 Astrotheca I. Hino, 1938 accepted as Astrosphaeriella H. Sydow & P. Sydow, 1913 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Astrosphaeriellaceae (Family)
 Astrotheca Vesque, 1892 accepted as Clusia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)

Astrotischeria
     Astrotischeria Puplesis & Diškus, 2003 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tischeriidae (Family)
     Astrotischeria Puplesis & Diskus in Diskus & Puplesis, 2003 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Asturia
 Asturia Gray, 1842 accepted as Hydrophis Latreille, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Hydrophiidae (Family)
     Asturia Vieillot, 1816 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Asturiaspongia
     Asturiaspongia Garcia-Bellido & Rigby, 2004 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Amphidiscosida (Order) > Pelicaspongiidae (Family)
     Asturiaspongia García-Bellido, 2002 † accepted as Asturiaspongia García-Bellido, 2002 † (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Amphidiscosida (Order) > Pelicaspongiidae (Family)

Astus
     Astus M.E. Trudgen & B.L. Rye, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Astus Péringuey, 1896 accepted as Hystrichopus Boheman, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Astyages
     Astyages Stephens, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Astyages Costa, 1864 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Astyages Angelin † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Astyanax
     Astyanax Stål, 1867 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
     Astyanax Baird & Girard, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)

Astycus
 Astycus Schönherr, 1823 accepted as Lepropus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Astycus Hübner, 1822 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Astylis
     Astylis Boisduval, 1872 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Astylis R. Wight, 1853 accepted as Drypetes M. Vahl, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Putranjivaceae (Family)

Astylogethes
 Astylogethes Kirejtshuk, 1979 accepted as Meligethes Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nitidulidae (Family)
     Astylogethes Kureichuk, 1992 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nitidulidae (Family)

Astylus
     Astylus Laporte, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melyridae (Family)
 Astylus Moseley, 1878 accepted as Astya Stechow, 1921 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Stylasteridae (Family)
     Astylus Dulac, 1867 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Astynomus
     Astynomus Faldermann, 1837 accepted as Astynomus Dejean, 1835 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Astynomus Dejean, 1835 accepted as Aedilis Audinet-Serville, 1835 (junior objective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Astynomus Laporte de Castelnau, 1840 accepted as Astynomus Dejean, 1835 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Astynomus Thomson, 1864 accepted as Astyochus Aurivillius, 1923 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Astynoscelis
 Astynoscelis Pic, 1905 accepted as Acalolepta Pascoe, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Astynoscelis Pic, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Astyphlus
     Astyphlus Reitter, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Astyphlus Kuschel, 1964 accepted as Astyptus Broun, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Asychis
 Asychis Gray, 1867 accepted as Haliclona Grant, 1841 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Haplosclerida (Order) > Chalinidae (Family)
     Asychis Kinberg, 1867 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Capitellida (Order) > Maldanidae (Family)

Asymmathetes
     Asymmathetes Wibmer & O'Brien, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Asymmathetes Voss, 1954 accepted as Asymmathetes Wibmer & O'Brien, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Asymmelba
 Asymmelba Park, 1952 accepted as Melba Casey, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Asymmelba Park, 1942 accepted as Melba Casey, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Asymmetrella
     Asymmetrella Neckaja, 1973 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Primitiopsidae (Family)
     Asymmetrella Cobb, 1920 accepted as Asymmetrella Cobb, 1920 (nomen dubium)· Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Enoplida (Order) > Oncholaimoidea incertae sedis (Family)
     Asymmetrella Gorochov, 2022 accepted as Neoasymmetrella Deshmukh, Misar, Shende, Mungole & Reddy, 2023 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Gryllidae (Family)

Asymmetria
 Asymmetria W.A. Setchell & N.L. Gardner, 1927 accepted as Coriophyllum W.A. Setchell & N.L. Gardner, 1917 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Palmariales (Order) > Rhodophysemataceae (Family)
 Asymmetria Suriano, 1975 † accepted as Neogrubea Dillon & Hargis, 1968 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Mazocraeidea (Order) > Mazocraeidae (Family)

Asymmetrocrinus
     Asymmetrocrinus Wanner, 1937 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Cladida (Order) > Cladida (awaiting allocation) (Family)
     Asymmetrocrinus Donovan, 1987 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)

Asymmetrura
     Asymmetrura Fariña, 1981 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cingulata (Order) > Glyptodontidae (Family)
     Asymmetrura Landry, 1991 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Scythrididae (Family)

Asyncritus
 Asyncritus Kertész, 1914 accepted as Asyncritula Strand, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
     Asyncritus Handlirsch, 1911 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Palaeodictyoptera (Order) > Palaeodictyoptera (awaiting allocation) (Family)

Atacama
     Atacama Morris, 1980 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Hippothoidae (Family)
     Atacama O. Toro, M.E. Mort & I.A. Al-Shehbaz, 2014 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Atacta
     Atacta Schiner, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Atacta Cameron, 1939 accepted as Tacata Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Atactopora
     Atactopora Ulrich, 1879 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Trepostomatida (Order) > Trematoporidae (Family)
 Atactopora Canu & Bassler, 1929 † accepted as Atactoporidra Canu & Bassler, 1931 † · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Cheilostomatida (awaiting allocation) (Family)

Atactus
     Atactus Pomel, 1883 † accepted as Atactus Pomel, 1883 † (nomen dubium)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Echinoida (Order) > Echinidae (Family)
 Atactus Faust, 1897 accepted as Thompsoniella Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Ataenia
     Ataenia Schoch, 1895 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Ataenia Thomson, 1877 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Atalanta
 Atalanta Knocker, 1869 accepted as Atlanta Lesueur, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Atlantidae (Family)
 Atalanta Stål, 1861 accepted as Atalanta Stål, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Atalanta Meigen, 1800 accepted as Atalanta Meigen, 1800 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Empididae (Family)
 Atalanta (Nuttall) Rafinesque, 1838 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Capparaceae (Family)
     Atalanta Seeley, 1864 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Atalanta Cordey & Carter, 1996 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)

Atalantia
     Atalantia Termier & Verriez, 1973 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Trigoniida (Order) > Myophoriidae (Family)
     Atalantia Correa, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Atalapha
 Atalapha Peters, 1871 accepted as Lasiurus Gray, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Vespertilionidae (Family)
     Atalapha Rafinesque, 1814 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Vespertilionidae (Family)

Atamosco
 Atamosco Adanson, 1763 accepted as Zephyranthes Herbert, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)
 Atamosco Schlechtendal ex Hasskarl, 1866 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Commelinales (Order) > Commelinaceae (Family)

Atax
     Atax Fabricius, 1805 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)
 Atax Koch, 1836 accepted as Unionicola Haldeman, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)

Ataxia
     Ataxia Haldeman, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Ataxia R. Brown, 1823 accepted as Anthoxanthum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Ataxiacrinus
     Ataxiacrinus Lyon, 1869 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Ataxiacrinus Strimple, 1961 † accepted as Tarachiocrinus Strimple, 1962 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Cladida (Order) > Cladida (awaiting allocation) (Family)

Ataxoorbignyna
     Ataxoorbignyna † (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Foraminifera (awaiting allocation) (Class) > (Order) > (Family)
     Ataxoorbignyna Voloshina, 1965 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Ataxophragmiidae (Family)

Ate
 Ate Godman & Salvin, 1895 accepted as Pythonides Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
 Ate Lindley, 1835 accepted as Habenaria Willdenow, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Atea
     Atea Pilsbry & Cooke, 1933 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Atea Koch, 1837 accepted as Araneus Clerck, 1757 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)

Atelandra
 Atelandra Lindley, 1840 accepted as Hemigenia R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Atelandra Bello, 1881 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Sabiaceae (Family)

Ateleia
     Ateleia (A.P. de Candolle) Bentham, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Ateleia Skuse, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Mycetophilidae (Family)

Ateleopus
     Ateleopus Temminck & Schlegel in Siebold, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Ateleopodiformes (Order) > Ateleopodidae (Family)
 Ateleopus Agassiz, 1846 accepted as Atelopus Duméril & Bibron, 1841 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Bufonidae (Family)

Atelestus
     Atelestus Walker, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Atelestidae (Family)
 Atelestus Erichson, 1840 accepted as Brachemys Abeille, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melyridae (Family)

Atelius
     Atelius Waterhouse, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lycidae (Family)
 Atelius Fischer de Waldheim, 1813 accepted as Ateles Geoffroy, 1806 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Atelidae (Family)

Atella
     Atella Doubleday in Doubleday & Westwood, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Atella Stål, 1866 accepted as Colgar Kirkaldy, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Flatidae (Family)

Atelodesmis
     Atelodesmis Dejean, 1835 accepted as Atelodesmis Duponchel & Chevrolat in D'Orbigny, 1841 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Atelodesmis Buquet, 1857 accepted as Atelodesmis Duponchel & Chevrolat in D'Orbigny, 1841 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Atelodesmis Duponchel & Chevrolat in D'Orbigny, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Atelopus
 Atelopus Erichson, 1842 accepted as Acroniopus Erichson, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Atelopus Temminck & Schlegel, 1846 accepted as Ateleopus Temminck & Schlegel in Siebold, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Ateleopodiformes (Order) > Ateleopodidae (Family)
     Atelopus Duméril & Bibron, 1841 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Bufonidae (Family)

Ateloza
 Ateloza Enderlein, 1923 accepted as Atelozella Bequaert in Strong, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)
     Ateloza Enderlein, 1920 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Atenia
 Atenia W.J. Hooker & Arnott, 1839 accepted as Perideridia H.G.L. Reichenbach, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Atenia Gittenberger, 1968 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicodontidae (Family)

Aterpus
 Aterpus Schönherr, 1826 accepted as Aades Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Aterpus Guerin-Meneville, 1834 accepted as Lithinus Klug, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Athena
 Athena Gray, 1844 accepted as Athene Boie, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)
     Athena Hübner, 1819 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Athenaea
     Athenaea Sendtner in C.F.P. Martius, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)
 Athenaea Adanson, 1763 accepted as Athenaea Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Athenaea Schreber, 1789 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Athertonia
     Athertonia L.A.S. Johnson & B.G. Briggs, 1975 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)
 Athertonia Sjöstedt, 1918 accepted as Tropidoderus Gray, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Phasmatidae (Family)

Atherura
 Atherura Gray, 1842 accepted as Atherurus Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Hystricidae (Family)
 Atherura Blyth in Blyth, 1840 accepted as Atherurus Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Hystricidae (Family)

Atherurus
     Atherurus Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Hystricidae (Family)
 Atherurus Blume, 1837 accepted as Pinellia Tenore, 1839 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)

Athis
 Athis Hübner, 1819 accepted as Hista Oiticica Filho, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Castniidae (Family)
 Athis Houlbert, 1918 accepted as Hista Oiticica Filho, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Castniidae (Family)

Athleta
     Athleta Walsingham, 1912 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Athleta Conrad, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Volutidae (Family)

Athlia
     Athlia Erichson, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Athlia Agassiz, 1846 accepted as Mycerinus Thomson, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Athorybia
     Athorybia Eschscholtz, 1829 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Agalmatidae (Family)
     Athorybia Razowski, 1997 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Athrips
 Athrips Priesner, 1938 accepted as Thrips Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Thripidae (Family)
     Athrips Billberg, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)

Athrodon
     Athrodon Sauvage, 1880 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pycnodontiformes (Order) > Pycnodontidae (Family)
 Athrodon Osborn, 1887 † accepted as Kurtodon Osborn, 1887 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Dryolestida (Order) > Dryolestidae (Family)

Athroisma
     Athroisma A.P. de Candolle, 1833 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Athroisma W. Griffith, 1854 accepted as Trigonostemon Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Athyma
     Athyma Westwood in Doubleday & Westwood, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Athyma Pagenstecher, 1888 accepted as Athyrma Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Athyrium
 Athyrium Berthold in Latreille, 1827 accepted as Athyreus MacLeay, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bolboceratidae (Family)
     Athyrium A.W. Roth, 1799 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Athyriaceae (Family)

Athyrocarpus
     Athyrocarpus Schlechtendal ex Hasskarl, 1866 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Commelinales (Order) > Commelinaceae (Family)
 Athyrocarpus Schlechtendal ex Bentham & J.D. Hooker, 1883 accepted as Commelina Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Commelinales (Order) > Commelinaceae (Family)

Athysanus
     Athysanus Burmeister, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Athysanus E.L. Greene, 1885 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Atilia
     Atilia Robineau-Desvoidy, 1863 accepted as Atilia Robineau-Desvoidy, 1863 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Atilia H. Adams & A. Adams, 1853 accepted as Anachis H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Columbellidae (Family)

Atimeta
 Atimeta H.W. Schott, 1858 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)
 Atimeta Chapuis in Lacordaire, 1875 accepted as Simaethea Baly, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Atimus
 Atimus Péringuey, 1896 accepted as Poecilus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Atimus Dejean, 1836 accepted as Atimus Dejean, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)

Atkinsonella
     Atkinsonella Diehl, 1950 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Clavicipitaceae (Family)
     Atkinsonella Finlay, 1930 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)
     Atkinsonella Jordan & Gilbert, 1920 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Atkinsonia
 Atkinsonia Lloyd, 1916 accepted as Sebacina L.R. Tulasne & C. Tulasne, 1871 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Sebacinales (Order) > Sebacinaceae (Family)
 Atkinsonia O. Pickard-Cambridge, 1880 accepted as Euryopis Menge, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
     Atkinsonia F. von Mueller, 1865 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Loranthaceae (Family)
 Atkinsonia Stainton, 1859 accepted as Oedematopoda Zeller, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Stathmopodidae (Family)

Atlantica
     Atlantica Wagner, 1897 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Atlantica Ancey, 1887 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)

Atlantis
 Atlantis Wollaston, 1854 accepted as Laparocerus Schönherr, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Atlantis Anon., 1819 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Atlantisia
     Atlantisia Dlabola, 1977 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Atlantisia Lowe, 1923 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Gruiformes (Order) > Rallidae (Family)

Atlantoserolis
     Atlantoserolis Cals, 1983 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Malacostraca (awaiting allocation) (Order) > Malacostraca (awaiting allocation) (Family)
     Atlantoserolis Wägele, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Serolidae (Family)

Atlas
     Atlas Laporte, 1840 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Atlas Lesueur, 1817 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Atollites
     Atollites Maas, 1902 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Atollites Zuber, 1910 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Atoma
     Atoma Bellardi, 1875 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)
 Atoma Latreille in Cuvier, 1817 accepted as Atoma Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Atomaria
     Atomaria Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cryptophagidae (Family)
     Atomaria Gistl, 1834 accepted as Atomaria Gistl, 1834 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Atomaria Stackhouse, 1816 accepted as Odonthalia Lyngbye, 1819 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)
 Atomaria Bigot, 1854 accepted as Epidapus Haliday in Walker, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sciaridae (Family)

Atomophora
     Atomophora Reuter, 1884 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Atomophora Alphéraky in Romanoff, 1892 accepted as Atomorpha Staudinger & Rebel, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Atomus
 Atomus Oudemans, 1914 accepted as Trombidium Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombidiidae (Family)
     Atomus Latreille, 1795 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Atonia
 Atonia Williston, 1889 accepted as Atoniomyia Hermann, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Atonia Gistl, 1848 accepted as Neofidia Strother in Kumari et al., 2020 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Atopa
     Atopa Albers, 1850 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Atopa Paykull, 1799 accepted as Dascillus Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dascillidae (Family)

Atopina
     Atopina Korobov, 1966 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Atopidae (Family)
     Atopina Korobov, 1966, nom. nud. † accepted as Atopina Korobov, 1966 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Atopidae (Family)

Atopocrinus
     Atopocrinus A.H. Clark, 1912 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Comatulida (Order) > Atopocrinidae (Family)
     Atopocrinus Lane, 1970 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)

Atopocystis
     Atopocystis Attems, 1951 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Julida (Order) > Julidae (Family)
     Atopocystis Pedder in Pedder & Murphy, 2004 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Cystiphyllidae (Family)

Atopodinium
     Atopodinium W.S. Drugg, 1978 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > (Family)
     Atopodinium Kahl, 1932 · Chromista (Kingdom) > Ciliophora (Phylum) > Plagiopylea (Class) > Odontostomatida (Order) > Epalxellidae (Family)

Atopognathus
 Atopognathus Cushman, 1919 accepted as Atopotrophos Cushman, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Atopognathus Bigot, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Platystomatidae (Family)

Atopogonus
 Atopogonus Attems, 1927 accepted as Atopogestus Kraus, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Spirostreptida (Order) > Atopogestidae (Family)
 Atopogonus Carl, 1926 accepted as Agathodesmus Silvestri, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Haplodesmidae (Family)

Atopogyne
     Atopogyne Forel, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Atopogyne Krombein, 1957 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chrysididae (Family)

Atopomyia
     Atopomyia Austen, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Pantophthalmidae (Family)
     Atopomyia Yu & Liu, 2000 accepted as Atopopogon Borkent, Dominiak & Díaz, 2022 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ceratopogonidae (Family)

Atoponeura
     Atoponeura Busck, 1914 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Atoponeura Szépligeti, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Atopospora
     Atopospora Petrak, 1925 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Venturiales (Order) > Venturiaceae (Family)
 Atopospora P.P. Burbridge & C.J. Felix, 1977 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Atortus
     Atortus Sewell, 1932 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Atortus Ohtsuka, 1992 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Tortanidae (Family)

Atossa
 Atossa Moore, 1875 accepted as Nossa Kirby, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Epicopeiidae (Family)
 Atossa Thomson, 1864 accepted as Grammoechus Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Atossa Meyrick, 1883 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Atossa Alefeld, 1861 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Atractodes
     Atractodes Gravenhorst, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Atractodes Germar, 1839 accepted as Atractosomus Lacordaire, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Atractomerus
     Atractomerus Duponchel & Chevrolat, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Atractomerus Dejean, 1835 accepted as Atractomerus Duponchel & Chevrolat, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Atractomorpha
     Atractomorpha L.R. Hoffman, 1983 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Sphaeropleaceae (Family)
     Atractomorpha Saussure, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Pyrgomorphidae (Family)

Atractonema
 Atractonema Leuckart, 1887 accepted as Tripius Chitwood, 1935 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Sphaerulariidae (Family)
     Atractonema S.F.N. von Stein, 1878 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Peranemea (Class) > Natomonadida (Order) > Astasiidae (Family)

Atractophora
     Atractophora H.M. Crouan & P.L. Crouan, 1848 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Atractophorales (Order) > Atractophoraceae (Family)
 Atractophora Schrammen, 1924 † accepted as Fusiferella de Laubenfels in Moore, 1955 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ophiraphiditidae (Family)
 Atractophora Stål, 1853 accepted as Pachygrontha Germar, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)

Atractotrema
 Atractotrema Goto & Ozaki, 1929 accepted as Emprostiotrema Ceccolini & Cianferoni, 2021 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Emprostiotrematidae (Family)
     Atractotrema Cossmann, 1888 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Fissurellidae (Family)

Atractus
     Atractus Dejean, 1833 accepted as Atractus Boisduval, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Atractus Lacordaire, 1859 accepted as Atractus Boisduval, 1835 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Atractus de Laporte, 1832 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Atractus Agassiz in Sowerby, 1839 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Atractus Wagler, 1828 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
     Atractus Boisduval, 1835 accepted as Aethyssius Pascoe, 1863 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Atractylis
     Atractylis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Atractylis Wright, 1858 accepted as Bougainvillia Lesson, 1830 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Bougainvilliidae (Family)
 Atractylis Boehmer in C.G. Ludwig, 1760 accepted as Phonus J. Hill, 1762 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Atrema
 Atrema A.P. de Candolle, 1829 accepted as Bifora G.F. Hoffmann, 1816 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Atrema Schuster & Summers, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Diarthrophallidae (Family)

Atreus
 Atreus Koch, 1837 accepted as Opistophthalmus Koch, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Scorpionidae (Family)
 Atreus Gervais, 1843 accepted as Tityus Koch, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Buthidae (Family)
 Atreus Grote, 1886 accepted as Paratrea Grote, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)

Atrichia
     Atrichia Schoch, 1896 accepted as Atrichiana Distant, 1911 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Atrichia Gould, 1844 accepted as Atrichornis Stejneger, 1885 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Menuridae (Family)
     Atrichia Schrank, 1803 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Atrichopsis
 Atrichopsis Voss, 1954 accepted as Cryptorhynchus Illiger, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Atrichopsis J. Cardot, 1912 · Plantae (Kingdom) > Bryophyta (Phylum) > Polytrichopsida (Class) > Polytrichales (Order) > Polytrichaceae (Family)

Atricilla
 Atricilla Bonaparte, 1854 accepted as Chroicocephalus Eyton, 1836 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Laridae (Family)
     Atricilla Bonaparte, 1854, nom. nud. accepted as Chroicocephalus Eyton, 1836 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Laridae (Family)

Atrina
     Atrina Gray, 1840 accepted as Atrina Gray, 1842 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pinnidae (Family)
     Atrina Gray, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pinnidae (Family)

Atrinia
     Atrinia Sinev, 1992 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Elachistidae (Family)
 Atrinia accepted as Atrina Gray, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pinnidae (Family)

Atriotaenia
     Atriotaenia Spasski in Skrjabin, 1951 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)
     Atriotaenia Sandground, 1926 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Anoplocephalidae (Family)

Atritomus
     Atritomus Förster, 1878 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Atritomus Reitter, 1877 accepted as Esarcus Reiche, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Mycetophagidae (Family)

Atropidius
 Atropidius Chapuis in Lacordaire, 1874 accepted as Adiscus Gistl, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Atropidius Emeljanov, 1982 accepted as Glabrinotum Ding, 2006 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Delphacidae (Family)

Atropis
     Atropis Glückselig, 1851 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Atropis Pease, 1871 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Assimineidae (Family)
     Atropis Kirschbaum, 1867 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Delphacidae (Family)
 Atropis (Trinius) Grisebach in Ledebour, 1852 accepted as Puccinellia Parlatore, 1848 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Atropos
     Atropos Leach, 1815 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Psocoptera (awaiting allocation) (Family)
     Atropos Rafinesque, 1815 accepted as Atropos Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Atropos Oken, 1815 accepted as Acherontia Laspeyres, 1809 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)
     Atropos Wagler, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Viperidae (Family)

Atrytone
     Atrytone Scudder, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
 Atrytone Keyserling in Koch (Keyserling), 1883 accepted as Tara Peckham, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Atta
     Atta Fabricius, 1805 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)
     Atta Simon, 1864 accepted as Attus Walckenaer, 1805 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Attacus
     Attacus Germar, 1810 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Attacus Linnaeus, 1767 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
     Attacus Kluk, 1802 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Attagen
     Attagen Oken, 1817 accepted as Attagen Oken, 1817 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Attagen Kaup, 1829 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Attagen Agassiz, 1846 accepted as Attagen Agassiz, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Attagenus
 Attagenus Háva, 2007 accepted as Attagenus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
     Attagenus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Attagenus Latreille in Cuvier, 1829 accepted as Ctesias Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Attakeopsis
     Attakeopsis Thiollière, 1858 † accepted as Attakeopsis Thiollière, 1858 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Attakeopsis Thiollière, 1873 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Attalia
     Attalia Uvarov, 1936 accepted as Galinthias Stål, 1877 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Galinthiadidae (Family)
     Attalia Melichar, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Attenuatella
     Attenuatella Stehli, 1954 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Ambocoeliidae (Family)
 Attenuatella Edmunds, 1959 accepted as Attenella Edmunds, 1971 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Ephemerellidae (Family)

Attenuella
     Attenuella Boulard, 1973 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)
     Attenuella Malinky, 2014 † · Animalia (Kingdom) > Hyolitha (Phylum) > (Class) > (Order) > (Family)

Attheyella
 Attheyella Chappuis, 1929 accepted as Attheyella Brady, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Canthocamptidae (Family)
     Attheyella Brady, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Canthocamptidae (Family)

Attica
     Attica Böttger, 1877 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Attica Say, 1826 accepted as Altica Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Atticora
     Atticora Boie, 1844 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Hirundinidae (Family)
     Atticora Gould, 1842 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Hirundinidae (Family)

Attopsis
 Attopsis Gourret, 1887 † accepted as Eoattopsis Petrunkevitch, 1955 † · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Attopsis Heer, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)

Attus
 Attus Walckenaer, 1805 accepted as Salticus Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Attus Hahn, 1832 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Aturia
 Aturia Gray, 1842 accepted as Hydrophis Latreille, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Hydrophiidae (Family)
     Aturia Bronn, 1838 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Nautilida (Order) > Aturiidae (Family)
     Aturia Gray, 1840 accepted as Hydrophis Latreille, 1801 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Hydrophiidae (Family)

Atychia
     Atychia Ochsenheimer, 1808 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Brachodidae (Family)
     Atychia Latreille, 1809 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Glyphipterigidae (Family)

Atylodes
     Atylodes Gistel, 1868 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Caudata (Order) > Plethodontidae (Family)
 Atylodes Broun, 1914 accepted as Dermothrius Broun, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Atylus
 Atylus R.A. Salisbury, 1807 accepted as Isopogon R. Brown ex J. Knight, 1809 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)
     Atylus Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Atylidae (Family)

Atympanum
     Atympanum Yin, 1984 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Atympanum Yin, 1982 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Atypa
     Atypa Laporte, 1832 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)
 Atypa Simon, 1864 accepted as Atypus Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Atypidae (Family)

Atypus
 Atypus Günther, 1860 accepted as Atypichthys Günther, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Kyphosidae (Family)
     Atypus Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Atypidae (Family)

Atys
     Atys Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Haminoeidae (Family)
 Atys Reiche in Ferret & Galinier, 1850 accepted as Genyoschiza Moser, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Atys Leach, 1816 accepted as Atya Leach, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Atyidae (Family)

Aubaea
     Aubaea Robineau-Desvoidy, 1863a · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Aubaea Robineau-Desvoidy, 1863b accepted as Cylindromyia Meigen, 1803 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Aubertia
 Aubertia Théry, 1922 accepted as Eumerophilus Deyrolle, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Aubertia Bory de St.-Vincent, 1804 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Aubertia L.A. Chapelier ex H.E. Baillon, 1861 accepted as Croton Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Aubertia Viktorov, 1968 † accepted as Aubertiana Viktorov, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Aubertia Oberthür, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Aubertiana
     Aubertiana Viktorov, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Aubertiana Zhiltzova, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Perlodidae (Family)

Aubletia
 Aubletia Schreber, 1789 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Aubletia J. Gaertner, 1788 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Lythraceae (Family)
 Aubletia Loureiro, 1790 accepted as Paliurus P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rhamnaceae (Family)
 Aubletia Persoon, 1807 accepted as Monniera Loefling, 1758 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Auchenaspis
     Auchenaspis Egerton, 1857 † · Animalia (Kingdom) > Chordata (Phylum) > Cephalaspidomorphi (Class) > Cephalaspidiformes (Order) > Cephalaspididae (Family)
 Auchenaspis Bleeker, 1858 accepted as Auchenoglanis Günther, 1865 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Claroteidae (Family)

Auchenia
 Auchenia Thunberg, 1789 accepted as Zeugophora Kunze, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Auchenia Illiger, 1811 accepted as Lama Cuvier, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Camelidae (Family)

Auchenophorus
     Auchenophorus Turner, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)
 Auchenophorus Bode, 1953 † accepted as Auchenophorites Carpenter, 1985 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > (Family)

Auchenopterus
 Auchenopterus Günther, 1861 accepted as Paraclinus Mocquard, 1888 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Labrisomidae (Family)
 Auchenopterus Agassiz, 1846 accepted as Auchenipterus Valenciennes in Cuvier & Valenciennes, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Auchenipteridae (Family)

Aucklandia
 Aucklandia Falconer, 1841 accepted as Saussurea A.P. de Candolle, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Aucklandia Walker, 1908 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Eusiridae (Family)

Audia
     Audia Walker, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Audia Zetterstedt, 1849 accepted as Acidia Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Audibertia
 Audibertia Bentham in Lindley, 1829 accepted as Salvia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Audibertia Bentham in Lindley, 1832 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Audinetia
     Audinetia Lepeletier, 1841 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Audinetia Ellenrieder, 1862 accepted as Andrallus Bergroth, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Audouinia
     Audouinia A.T. Brongniart, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Bruniales (Order) > Bruniaceae (Family)
 Audouinia Quatrefages, 1866 accepted as Cirriformia Hartman, 1936 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Cirratulida (Order) > Cirratulidae (Family)
     Audouinia Costa, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Corophiidae (Family)

Auerbachia
     Auerbachia Trautschold, 1870 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Auerbachia Meglitsch, 1968 · Animalia (Kingdom) > Cnidaria (Phylum) > Myxosporea (Class) > Bivalvulida (Order) > Auerbachiidae (Family)

Auerswaldia
     Auerswaldia P.A. Saccardo, 1883 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideales (Order) > Dothideaceae (Family)
 Auerswaldia Rabenhorst, 1857 accepted as Melanospora Corda, 1837 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Melanosporales (Order) > Ceratostomataceae (Family)

Augasma
     Augasma Gould, 1860 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)
     Augasma Herrich-Schäffer, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Coleophoridae (Family)

Auge
     Auge Dejean, 1833 accepted as Lychnacris Motschoulsky, 1853 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lampyridae (Family)
     Auge Oken, 1815 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Augea
     Augea Khalfin, 1950 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myalinida (Order) > Prokopievskiidae (Family)
     Augea Thunberg, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zygophyllales (Order) > Zygophyllaceae (Family)

Augia
 Augia Loureiro, 1790 accepted as Augia Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)
 Augia Haime & Milne-Edwards in Milne-Edwards, 1857 accepted as Culicia Dana, 1846 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Rhizangiidae (Family)

Augusta
     Augusta Pohl, 1828(?) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Augusta P. Leandro de Sacramento, 1821 accepted as Augusta P. Leandro de Sacramento, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Augusta O. Pickard-Cambridge, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)

Augustea
     Augustea D. Iamonico, 2015 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)
 Augustea Szombathy accepted as Augustaea Szombathy, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Augustea A.P. de Candolle, 1830 accepted as Augusta Pohl, 1828(?) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Augustia
     Augustia Klotzsch, 1854 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Begoniaceae (Family)
     Augustia Zariquiey, 1927 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)

Augustinea
 Augustinea G.K.W.H. Karsten, 1857 accepted as Bactris N.J. Jacquin ex Scopoli, 1777 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
     Augustinea A.F.C.P. Saint-Hilaire & Naudin, 1844 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Aulacatrypa
 Aulacatrypa Havlicek in Havlicek & Storch, 1990 † accepted as Aulacatrypa Havlicek, 1987 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Atrypida (Order) > Lissatrypidae (Family)
     Aulacatrypa Havlicek, 1987 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Atrypida (Order) > Lissatrypidae (Family)

Aulacia
 Aulacia Loureiro, 1790 accepted as Micromelum Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
     Aulacia Baly, 1867 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Aulacium
 Aulacium Reiche, 1841 accepted as Aulacium Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Aulacium Dejean, 1833 accepted as Mentophilus Laporte de Castelnau, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Aulacobaris
     Aulacobaris Desbrochers, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Aulacobaris Lea, 1931 accepted as Aulacobaridia Hustache, 1938 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Aulacocephala
     Aulacocephala Gerstaecker, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Aulacocephala Montrouzier, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Derbidae (Family)

Aulacocephalus
     Aulacocephalus Seeley, 1898 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Aulacocephalus Temminck & Schlegel, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Serranidae (Family)

Aulacocheilus
     Aulacocheilus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
 Aulacocheilus Chevrolat in Lacordaire, 1842 accepted as Aulacocheilus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)

Aulacochlamys
 Aulacochlamys R. Margalef, 1946 accepted as Chrysotila P.L. Anand, 1937 · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Syracosphaerales (Order) > Syracosphaeraceae (Family)
 Aulacochlamys Monrós, 1952 accepted as Aulacomela Doweld, 2014 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Aulacodera
     Aulacodera Agassiz, 1846 accepted as Auladera Solier, 1836 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Aulacodera Gemminger & Harold, 1870 accepted as Auladera Solier, 1836 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Aulacoderus
     Aulacoderus de La Ferté-Sénectère in Guérin-Méneville, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthicidae (Family)
 Aulacoderus Agassiz, 1846 accepted as Aulacoderes Chevrolat, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Aulacodes
     Aulacodes Guenée, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
     Aulacodes Cresson, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Aulacodes Wallace, 1876 accepted as Thryonomys Fitzinger, 1867 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Thryonomyidae (Family)

Aulacodiscus
     Aulacodiscus Douvillé, 1921 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Aulacodiscus C.G. Ehrenberg, 1844 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Coscinodiscophyceae (Class) > Coscinodiscales (Order) > Aulacodiscaceae (Family)
 Aulacodiscus J.D. Hooker in Bentham & J.D. Hooker, 1873 accepted as Pleiocarpidia K.M. Schumann in Engler & Prantl, 1897 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Aulacodiscus Westergård, 1946 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Aulacodon
 Aulacodon Kaup in Meyer, 1832 † accepted as Castor Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Castoridae (Family)
 Aulacodon Agassiz, 1846 † accepted as Mylodon Owen, 1839 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pilosa (Order) > Mylodontidae (Family)

Aulacodus
     Aulacodus Pander, 1856 † (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Annelida (awaiting allocation) (Class) > Annelida (awaiting allocation) (Order) > Annelida (awaiting allocation) (Family)
 Aulacodus Temminck, 1827 accepted as Thryonomys Fitzinger, 1867 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Thryonomyidae (Family)
     Aulacodus Eschscholtz, 1822 accepted as Leucothyreus Macleay, 1819 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Aulacogaster
 Aulacogaster Agassiz, 1846 accepted as Aulacigaster Macquart, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Aulacigastridae (Family)
 Aulacogaster Rasnitsyn, 1972 † accepted as Aulacogastrinus Rasnitsyn, 1983 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Praeaulacidae (Family)

Aulacolepis
     Aulacolepis C. von Ettingshausen, 1893 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinales (Order) > Pinaceae (Family)
 Aulacolepis Hackel, 1907 accepted as Calamagrostis Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Aulacolepis Baly, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Aulacomitrium
     Aulacomitrium Mitten, 1891 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Rhizogoniales (Order) > Aulacomniaceae (Family)
 Aulacomitrium V.F. Brotherus ex Müller Hal., 1900 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Grimmiales (Order) > Ptychomitriaceae (Family)

Aulacomya
     Aulacomya Mörch, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Mytiloida (Order) > Mytilidae (Family)
     Aulacomya Steinmann, 1881 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Mytiloida (Order) > Mytilidae (Family)

Aulacophora
     Aulacophora Tao, 1963 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Aulacophora Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Aulacophora Chevrolat in d'Orbigny, 1842 accepted as Aulacophora Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Aulacophora Jeffreys, 1882 accepted as Cuspidaria Nardo, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pholadomyoida (Order) > Cuspidariidae (Family)

Aulacophyllum
     Aulacophyllum E. Regel, 1876 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadales (Order) > Zamiaceae (Family)
     Aulacophyllum Milne-Edwards & Haime, 1850 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Halliidae (Family)

Aulacopsis
     Aulacopsis Hong & Wang, 1990 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Aulacopsis Hessland, 1949 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Tetradellidae (Family)

Aulacopus
     Aulacopus Audinet-Serville, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Aulacopus Pfeffer, 1878 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Aulacorhynchus
     Aulacorhynchus Gould, 1834 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Piciformes (Order) > Ramphastidae (Family)
 Aulacorhynchus Dittmar, 1872 accepted as Aulacorhynchus Dittmar, 1872 · Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Aulacorhynchus C.G.D. Nees, 1834 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)

Aulacoscelis
     Aulacoscelis Duponchel & Chevrolat, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Aulacoscelis Chevrolat in Dejean, 1836 accepted as Aulacoscelis Duponchel & Chevrolat, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Aulacoserica
     Aulacoserica Kolbe, 1897 accepted as Aulacoserica Brenske, 1900 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Aulacoserica Brenske, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Aulacostenus
 Aulacostenus Gemminger & Harold, 1869 accepted as Aulacostenus Gemminger & Harold, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
 Aulacostenus Motschulsky, 1869 accepted as Microrhagus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)

Aulacosternus
     Aulacosternus Motschoulsky, 1861 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
     Aulacosternus Marseul, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Aulacostethus
     Aulacostethus Waterhouse, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
     Aulacostethus Philippi, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Aulacidae (Family)
 Aulacostethus Uhler, 1871 accepted as Stethaulax Bergroth, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Scutelleridae (Family)

Aulacostoma
 Aulacostoma Agassiz, 1846 accepted as Aulacostoma Agassiz, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Thiaridae (Family)
 Aulacostoma Wiegmann & Ruthe, 1832 accepted as Aulacostoma Wiegmann & Ruthe, 1832 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Arhynchobdellida (Order) > Hirudinidae (Family)

Aulacostomum
 Aulacostomum Siebold & Stannius, 1848 accepted as Aulacostomum Siebold & Stannius, 1848 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Arhynchobdellida (Order) > Hirudinidae (Family)
     Aulacostomum Grube, 1850 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Hirudinoidea (awaiting allocation) (Order) > Hirudinoidea (awaiting allocation) (Family)

Aulacoteuthis
     Aulacoteuthis Lissajous, 1915 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Aulacoteuthis Stolley, 1911 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Belemnitida (Order) > Belemnitida (awaiting allocation) (Family)

Aulacozabrus
 Aulacozabrus Ganglbauer, 1931 accepted as Zabrus Schellenberg, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Aulacozabrus Antoine, 1947 accepted as Zabrus Schellenberg, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Aulactis
     Aulactis Spencer, 1940 † · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Oegophiurida (Order) > Oegophiurida (awaiting allocation) (Family)
     Aulactis Spencer, 1930 † accepted as Aulactis Spencer, 1940 † (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Oegophiurida (Order) > Oegophiurida (awaiting allocation) (Family)

Aulacus
     Aulacus Gray in Griffith & Pidgeon, 1831 accepted as Eurygona Laporte, 1840 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Aulacus Robert in Gray, 1840 accepted as Aulacus Gray in Griffith & Pidgeon, 1831 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Aulacus Schönherr, 1826 accepted as Gronops Schönherr, 1823 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Aulacus Jurine, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Aulacidae (Family)

Aulax
     Aulax P.J. Bergius, 1767 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)
 Aulax Szépligeti, 1903 accepted as Aulacus Jurine, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Aulacidae (Family)
     Aulax Gourret & Roeser, 1888 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Aulax Hartig in Germar, 1843 accepted as Aulax Hartig in Germar, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Cynipidae (Family)

Aulaxinus
 Aulaxinus Cocchi, 1872 † accepted as Macaca Lacepède, 1799 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Cercopithecidae (Family)
 Aulaxinus Lydekker in Nicholson & Lydekker, 1889 † accepted as Macaca Lacepède, 1799 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Cercopithecidae (Family)

Aulea
     Aulea Bonaparte, 1854, nom. nud. accepted as Laniocera Lesson, 1840 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
 Aulea Bonaparte, 1854 accepted as Laniocera Lesson, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)

Auletes
 Auletes Hatch, 1971 accepted as Auleutes Dietz, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Auletes Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Auletes Burmeister, 1837 accepted as Auletes Burmeister, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)

Auletomacer
     Auletomacer Zherichin in Cromov, Dmitriev, Zherichin, Lebedev, Ponomarenko, Rasnitsyn & Sukatsheva, 1993 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Auletomacer Zherichin, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nemonychidae (Family)

Auletris
     Auletris Breddin, 1899 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Auletris Wagler, 1830 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)

Auletta
     Auletta Schmidt, 1870 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Axinellida (Order) > Axinellidae (Family)
 Auletta O. Pickard-Cambridge, 1882 accepted as Macrargus Dahl, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)

Aulica
     Aulica Rafinesque, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)
 Aulica Gray, 1847 accepted as Cymbiola Swainson, 1831 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Volutidae (Family)

Auliscus
 Auliscus Saemundsson, 1899 accepted as Hybocodon L. Agassiz, 1860 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tubulariidae (Family)
     Auliscus Ehrenberg, 1843 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Eupodiscales (Order) > Eupodiscaceae (Family)

Aulocalyx
     Aulocalyx Schulze, 1885 accepted as Aulocalyx Schulze, 1886 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinosida (Order) > Aulocalycidae (Family)
     Aulocalyx Schulze, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinosida (Order) > Aulocalycidae (Family)

Aulochiton
     Aulochiton Pojeta, Vendrasco & Darrough, 2010 † · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Paleoloricata (awaiting allocation) (Order) > Aulochitonidae (Family)
     Aulochiton † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Neoloricata (awaiting allocation) (Order) > Neoloricata (awaiting allocation) (Family)

Aulocystella
     Aulocystella Kuzina in Sokolov, 1955 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Tabulata (Order) > Tabulata (awaiting allocation) (Family)
     Aulocystella Kuzina in Sokolov, 1950 † accepted as Aulocystella Kuzina in Sokolov, 1950 † (nomen nudum)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Anthozoa (awaiting allocation) (Order) > (Family)

Aulocystis
 Aulocystis Schulze, 1887 accepted as Neoaulocystis Zhuravleva, 1962 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lychniscosida (Order) > Aulocystidae (Family)
     Aulocystis Schlüter, 1885 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Tabulata (Order) > Aulocystidae (Family)
 Aulocystis Schulze, 1886 accepted as Neoaulocystis Zhuravleva, 1962 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lychniscosida (Order) > Aulocystidae (Family)

Aulodictyum
     Aulodictyum Haeckel, 1887 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)
     Aulodictyum Haeckel, 1879 accepted as Aulodictyum Haeckel, 1879 (nomen nudum)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)
 Aulodictyum Schulze, 1887 accepted as Farrea Bowerbank, 1862 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinosida (Order) > Farreidae (Family)

Aulographella
 Aulographella F. von Höhnel, 1917 accepted as Morenoina Theissen, 1913 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Asterinales (Order) > Morenoinaceae (Family)
     Aulographella Haeckel, 1887 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)

Aulographis
     Aulographis Haeckel, 1887 · Chromista (Kingdom) > Cercozoa (Phylum) > Thecofilosea (Class) > Eodarida (Order) > Aulacanthidae (Family)
 Aulographis Haeckel, 1884 accepted as Aulographis Haeckel, 1884 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Aulographium
 Aulographium accepted as Aulographum Libert, 1834 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Aulographaceae (Family)
     Aulographium Haeckel, 1879 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Aulolepis
     Aulolepis Geinitz, 1849 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Aulolepis Agassiz in Mantell, 1836 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Ctenothrissiformes (Order) > Ctenothrissiformes (awaiting allocation) (Family)

Aulonia
     Aulonia Haeckel, 1887 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)
     Aulonia Koch, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Lycosidae (Family)

Aulonogyrus
     Aulonogyrus Gemminger & Harold, 1868 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Aulonogyrus Motschulsky, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Gyrinidae (Family)

Aulonoscelis
     Aulonoscelis Reitter, 1896 accepted as Prosodes Eschscholtz, 1829 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Aulonoscelis Reitter, 1909 accepted as Aulonoscelis Reitter, 1896 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Aulophacus
 Aulophacus accepted as Caulophacus Schulze, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)
     Aulophacus Haeckel, 1887 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)

Aulophorus
     Aulophorus Schmarda, 1861 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Naididae (Family)
     Aulophorus Karsch, 1890 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Flatidae (Family)

Aulophyllia
     Aulophyllia d'Orbigny † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Aulophyllia Alloiteau, 1956 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Anthozoa (awaiting allocation) (Order) > (Family)

Aulopium
     Aulopium Rafinesque, 1815 accepted as Aulopium Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Aulopium Zittel, 1878 † accepted as Aulocopium Oswald, 1847 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Lithistida (Order) > Anthaspidellidae (Family)

Auloplegma
     Auloplegma Haeckel, 1887 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)
 Auloplegma Schmidt, 1879 accepted as Scleroplegma Schmidt, 1880 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lychniscosida (Order) > Diapleuridae (Family)
 Auloplegma Haeckel, 1870 accepted as Guancha Miklucho-Maclay, 1868 · Animalia (Kingdom) > Porifera (Phylum) > Calcarea (Class) > Clathrinida (Order) > Clathrinidae (Family)
     Auloplegma Haeckel, 1879 accepted as Auloplegma Haeckel, 1879 (nomen nudum)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)

Aulopora
     Aulopora Dana, 1846 accepted as Cyathopodium Verrill, 1868 (junior homonym)· Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Tubiporidae (Family)
     Aulopora Goldfuss, 1829 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Tabulata (Order) > Auloporidae (Family)

Aulopus
 Aulopus Cuvier, 1816 accepted as Aulopus Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Aulopiformes (Order) > Aulopidae (Family)
     Aulopus Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Aulopiformes (Order) > Aulopidae (Family)

Aulostoma
 Aulostoma Wiegmann, 1835 accepted as Aulostoma Wiegmann, 1835 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Arhynchobdellida (Order) > Hirudinidae (Family)
 Aulostoma Duméril, 1805 accepted as Aulostomus Lacepède, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Syngnathiformes (Order) > Aulostomidae (Family)

Aulostrotion
     Aulostrotion Ding in Ding, Duan & Zhang, 1984 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Anthozoa (awaiting allocation) (Order) > (Family)
     Aulostrotion Nakai, 1980 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)

Aulotractus
 Aulotractus Hensen, 1887 accepted as Aulotractus Hensen, 1887 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)
     Aulotractus Haeckel, 1887 · Chromista (Kingdom) > Cercozoa (Phylum) > Thecofilosea (Class) > Opaloconchida (Order) > Aulosphaeridae (Family)

Aulus
 Aulus Commerson in Lacepède, 1803 accepted as Fistularia Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Syngnathiformes (Order) > Fistulariidae (Family)
 Aulus Oken, 1815 accepted as Siliqua Megerle von Mühlfeld, 1811 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Pharidae (Family)

Auperia
 Auperia Chevrolat, 1864 accepted as Ataenius Harold, 1867 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Auperia Jacquelin Du Val in Sagra, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Aurana
 Aurana Bauer, 1985 accepted as Rana Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Ranidae (Family)
     Aurana Walker, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Aurantium
     Aurantium Giard, 1872 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Urochordata (awaiting allocation) (Class) > Urochordata (awaiting allocation) (Order) > Urochordata (awaiting allocation) (Family)
 Aurantium P. Miller, 1754 accepted as Citrus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Aurata
 Aurata Oken (ex Cuvier), 1817 accepted as Sparus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sparidae (Family)
 Aurata Catesby, 1771 accepted as Calamus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sparidae (Family)
     Aurata Risso, 1827 accepted as Aurata Risso, 1827 (nomen dubium)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Sparidae (Family)

Aureimonas
     Aureimonas Yang & Cho, unpublished accepted as Aureimonas Yang & Cho, unpublished (interim unpublished)· Bacteria (Kingdom) > Bacteroidetes (Phylum) > Flavobacteriia (Class) > Flavobacteriales (Order) > Flavobacteriaceae (Family)
     Aureimonas Rathsack et al., 2011 · Bacteria (Kingdom) > Proteobacteria (Phylum) > Alphaproteobacteria (Class) > Rhizobiales (Order) > Aurantimonadaceae (Family)

Aurelia
     Aurelia Péron & Lesueur, 1810 · Animalia (Kingdom) > Cnidaria (Phylum) > Scyphozoa (Class) > Semaeostomeae (Order) > Ulmaridae (Family)
 Aurelia J. Gay, 1858 accepted as Narcissus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)
     Aurelia Lamarck, 1816 · Animalia (Kingdom) > Cnidaria (Phylum) > Scyphozoa (Class) > Semaeostomeae (Order) > Ulmaridae (Family)
     Aurelia Cassini in F. Cuvier, 1817 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Aurelia Thomson, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Aureliana
 Aureliana accepted as Aureliania Gosse, 1860 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Capneidae (Family)
 Aureliana Boehmer in C.G. Ludwig, 1760 accepted as Panax Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)
     Aureliana Sendtner in C.F.P. Martius, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)

Aureliania
     Aureliania Capuse, 1971 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Coleophoridae (Family)
 Aureliania Fain, 1958 accepted as Fainaureliania André, 2021 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Ereynetidae (Family)
     Aureliania Gosse, 1860 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Capneidae (Family)

Aurelianus
     Aurelianus Bleszynski, 1962 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Aurelianus Distant, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Auricula
     Auricula Irfan, Zhang & Peng, 2022 accepted as Auriculaiana Irfan, Zhang & Peng, 2023 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)
 Auricula Battarra ex O. Kuntze, 1891 accepted as Auricularia Bulliard ex Jussieu, 1789 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Auriculariales (Order) > Auriculariaceae (Family)
 Auricula J. Hill, 1756 accepted as Auricula J. Hill, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)
     Auricula Castracane, 1873 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Surirellales (Order) > Auriculaceae (Family)
     Auricula Sun, 1993 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > (Class) > Trilobitomorpha (awaiting allocation) (Order) > Trilobitomorpha (awaiting allocation) (Family)
 Auricula Klein, 1753 accepted as Auricula Klein, 1753 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Lymnaeidae (Family)
 Auricula Lamarck, 1799 accepted as Ellobium Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ellobiida (Order) > Ellobiidae (Family)
 Auricula C.G. Lloyd, 1922 accepted as Punctularia Patouillard, 1895 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Corticiales (Order) > Punctulariaceae (Family)

Auricularia
     Auricularia Bulliard ex Jussieu, 1789 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Auriculariales (Order) > Auriculariaceae (Family)
     Auricularia Méhelÿ, 1935 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Auricularia Chun, 1896 accepted as Protankyra Östergren, 1898 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Apodida (Order) > Synaptidae (Family)
 Auricularia De la Beche, 1826 † accepted as Auricularia De la Beche, 1826 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ellobiida (Order) > Ellobiidae (Family)
 Auricularia Fabricius, 1823 accepted as Lymnaea Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Lymnaeidae (Family)
     Auricularia Blainville, 1816 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
 Auricularia Müller, 1849 accepted as · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Auricularia Tichy, 1979 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Auricularia Heidelberger, 2001 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)

Auriculina
     Auriculina Costa, 1856 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Auriculina Kobelt in Martini & Chemnitz, 1898 accepted as Ellobium Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ellobiida (Order) > Ellobiidae (Family)
 Auriculina Gray, 1847 accepted as Ondina de Folin, 1870 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)
     Auriculina Grateloup, 1838 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Ringiculidae (Family)
 Auriculina Moquin-Tandon, 1856 accepted as Auriculina Moquin-Tandon, 1856 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ellobiida (Order) > Ellobiidae (Family)

Aurina
 Aurina accepted as Scaphella Swainson, 1832 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Volutidae (Family)
     Aurina Evans, 1937 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)

Aurinia
     Aurinia Desvaux, 1815 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Aurinia Mulsant, 1875 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Aurinia H. Adams & A. Adams, 1853 accepted as Scaphella Swainson, 1832 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Volutidae (Family)

Auris
     Auris Spix, 1827 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)
     Auris Neviani, 1930 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Auriscalpium
 Auriscalpium Megerle von Mühlfeld, 1811 accepted as Laternula Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Laternulidae (Family)
     Auriscalpium S.F. Gray, 1821 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Russulales (Order) > Auriscalpiaceae (Family)

Auritella
 Auritella P.B. Matheny & N.L. Bougher, 2006 accepted as Auritella P.B. Matheny & N.L. Bougher ex P.B. Matheny & N.L. Bougher, 2006 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Inocybaceae (Family)
     Auritella P.B. Matheny & N.L. Bougher ex P.B. Matheny & N.L. Bougher, 2006 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Inocybaceae (Family)
     Auritella Leach, 1818 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Auritus
     Auritus Constantineanu, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Auritus Westerlund, 1883 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Diplommatinidae (Family)

Aurivillia
 Aurivillia Podany, 1968 accepted as Thompsoniana Podany, 1971 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Aurivillia Roewer, 1910 accepted as Aurivilliola Roewer, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Sclerosomatidae (Family)
     Aurivillia Tutt, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Aurora
     Aurora Ragonot, 1887 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Aurora Simpson, 1900 accepted as Diaurora Cockerell, 1903 (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
     Aurora Hentschel, 1909 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)
     Aurora Henning, 1992 accepted as Auracraea Henning, 1993 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Aurora Sollas, 1888 accepted as Rhabdastrella Thiele, 1903 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)

Auroria
     Auroria Bogoyavlenskaya, 1974 † accepted as Actinostroma Nicholson, 1886 † (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Stromatoporoidea (Class) > Actinostromatida (Order) > Actinostromatidae (Family)
     Auroria Poyarkov, 1969 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Auroriidae (Family)

Aurotis
     Aurotis Kirby, 1862 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Aurotis Dalman, 1816 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Austenia
     Austenia Nevill, 1878 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Ariophantidae (Family)
     Austenia Gude, 1897 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Austenia Surcouf, 1909 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Austenia Ramme, 1929 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Austinella
     Austinella R.S. Williams, 1911 (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Dicranales (Order) > Dicranaceae (Family)
     Austinella Foerste, 1909 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Plaesiomyidae (Family)

Austinia
 Austinia M.T. Buril & A.R. Simões, 2014 accepted as Daustinia M.T. Buril & A.R. Simões, 2015 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Convolvulaceae (Family)
     Austinia Müller Hal., 1875 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Fabroniaceae (Family)

Austinocrinus
     Austinocrinus Loriol, 1889 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Isocrinida (Order) > Isocrinida (awaiting allocation) (Family)
     Austinocrinus Sieverts-Doreck, 1953 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Austracarus
 Austracarus Balogh & Balogh, 1983 accepted as Ozacarus Colloff & Halliday, 1998 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Lohmanniidae (Family)
 Austracarus Mahunka, 1984 accepted as Ululohmannia Mahunka, 1987 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Lohmanniidae (Family)
 Austracarus Balogh & Balogh, 1984 accepted as Ozacarus Colloff & Halliday, 1998 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Lohmanniidae (Family)
     Austracarus Lawrence, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Leeuwenhoekiidae (Family)

Australella
 Australella Annandale, 1910 accepted as Hyalinella Jullien, 1885 · Animalia (Kingdom) > Bryozoa (Phylum) > Phylactolaemata (Class) > Plumatellida (Order) > Plumatellidae (Family)
 Australella Stach, 1949 accepted as Brachystomellides Arlé, 1959 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Brachystomellidae (Family)

Australia
     Australia J.M.H. Shaw, 2003 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Australia Girault, 1928 accepted as Parachalcerinys Girault, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)

Australiella
     Australiella Collignon, 1948 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Australiella T.F. Vozzhennikova, 1967 † accepted as Chatangiella T.F. Vozzhennikova, 1967 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Peridiniaceae (Family)

Australina
 Australina Malloch, 1925 accepted as Australinina Strand, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Lauxaniidae (Family)
     Australina Clarke, 1913 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Atrypida (Order) > Lissatrypidae (Family)
     Australina Gaudichaud-Beaupré in Freycinet, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Urticaceae (Family)
     Australina Clarke, 1912 † accepted as Australina Clarke, 1913 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Atrypida (Order) > Lissatrypidae (Family)

Australiosoma
 Australiosoma Breuning, 1950 accepted as Somatidia Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Australiosoma Brölemann, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Paradoxosomatidae (Family)

Australocamelus
     Australocamelus Patton, 1967 † accepted as Australocamelus Patton, 1967 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Artiodactyla (awaiting allocation) (Family)
     Australocamelus Patton, 1969 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Artiodactyla (awaiting allocation) (Family)

Australodiscus
     Australodiscus V. Porguen & M.J. Sullivan, 1997 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Triceratiales (Order) > Triceratiaceae (Family)
     Australodiscus Sey, 1983 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Digenea (awaiting allocation) (Order) > Digenea (awaiting allocation) (Family)

Australolaelaps
 Australolaelaps Womersley, 1956 accepted as Thadeua Domrow, 1977 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Laelapidae (Family)
     Australolaelaps Girault, 1925 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)

Australomyia
     Australomyia Schmid, 1950 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)
 Australomyia Freeman, 1951 accepted as Australosymmerus Freeman, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ditomyiidae (Family)

Australonema
 Australonema Tchesunov & Spiridonov, 1985 accepted as Aborjinia Özdikmen, 2010 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Marimermithida (Order) > Marimermithidae (Family)
     Australonema Tassell, 1980 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda incertae sedis (Order) > Holopeidae (Family)

Australophiloscia
     Australophiloscia Vandel, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Philosciidae (Family)
     Australophiloscia Green, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Philosciidae (Family)

Australopsis
     Australopsis Hinz-Schallreuter, 1993 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Bradoriida (Order) > Bradoriida (awaiting allocation) (Family)
 Australopsis Cecalupo & Perugia, 2014 accepted as Oparopsis Cecalupo & Perugia, 2015 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Cerithiopsidae (Family)

Australostichopus
     Australostichopus Levin, 2004 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Synallactida (Order) > Stichopodidae (Family)
     Australostichopus Levin in Moraes, Norhcote, Kalinin, Avilov, Silchenko & Dmitrenok, 2004 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Synallactida (Order) > Stichopodidae (Family)

Australotheca
     Australotheca Duellman, 2015 accepted as Alainia Duellman & Cannatella, 2018 (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hemiphractidae (Family)
     Australotheca Malinky, 2009 † · Animalia (Kingdom) > Hyolitha (Phylum) > (Class) > Hyolithida (Order) > Australothecidae (Family)

Australurus
     Australurus Ramsköld, 1986 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Australurus Jell & Duncan, 1986 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Siphlonuridae (Family)

Australytta
     Australytta Bologna, 1991 accepted as Australytta Bologna, 2003 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Meloidae (Family)
     Australytta Bologna, 2003 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Meloidae (Family)

Austrella
     Austrella P.M. Jørgensen, 2004 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Peltigerales (Order) > Pannariaceae (Family)
     Austrella Dana in Wilkes, 1849 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Austridotea
     Austridotea Nicholls, 1937 accepted as Austridotea Nicholls, 1937 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Idoteidae (Family)
     Austridotea Poore, 2001 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Idoteidae (Family)

Austriella
     Austriella Tenison-Woods, 1881 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Lucinidae (Family)
 Austriella Bittner, 1890 † accepted as Austriellula Strand, 1928 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Norellidae (Family)

Austrobalanus
     Austrobalanus Buckeridge, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Sessilia (Order) > Austrobalanidae (Family)
     Austrobalanus Pilsbry, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Sessilia (Order) > Austrobalanidae (Family)

Austrobathynella
     Austrobathynella Delamare Deboutteville & Roland, 1963 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Malacostraca (awaiting allocation) (Order) > Malacostraca (awaiting allocation) (Family)
     Austrobathynella Delamare Deboutteville, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Bathynellacea (Order) > Bathynellidae (Family)

Austrochilus
     Austrochilus Gertsch in Zapfe, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Austrochilidae (Family)
     Austrochilus Gertsch & Zapfe, 1953 accepted as Austrochilus Gertsch in Zapfe, 1955 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Austrochilidae (Family)

Austrocloeon
 Austrocloeon Barnard, 1940 accepted as Cloeon Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Baetidae (Family)
     Austrocloeon Barnard, 1932 accepted as Cloeon Leach, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Baetidae (Family)

Austrocrangonyx
     Austrocrangonyx Barnard & Barnard, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Paramelitidae (Family)
 Austrocrangonyx Barnard & Karaman, 1984 accepted as Austrocrangonyx Barnard & Barnard, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Paramelitidae (Family)

Austrogaster
     Austrogaster Amorim & Tozoni, 1994 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Austrogaster R. Singer, 1962 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Boletales (Order) > Paxillaceae (Family)

Austrographa
 Austrographa L.B. Sparrius, J.A. Elix & A.W. Archer, 2011 accepted as Austrographa L.B. Sparrius, J.A. Elix & A.W. Archer, 2013 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Roccellaceae (Family)
     Austrographa L.B. Sparrius, J.A. Elix & A.W. Archer, 2013 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Roccellaceae (Family)
 Austrographa L.B. Sparrius, J.A. Elix & A.W. Archer, 2010 accepted as Austrographa L.B. Sparrius, J.A. Elix & A.W. Archer, 2013 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Roccellaceae (Family)

Austrolaelaps
     Austrolaelaps Womersley, 1956 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Laelapidae (Family)
 Austrolaelaps Girault, 1929 accepted as Neapterolelaps Girault, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)

Austrolestes
     Austrolestes Just, 1998 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ischyroceridae (Family)
     Austrolestes Tillyard, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Lestidae (Family)

Austromontia
     Austromontia Staręga, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Triaenonychidae (Family)
     Austromontia Lawrence, 1931 accepted as Austromontia Staręga, 1992 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Triaenonychidae (Family)

Austronema
     Austronema Bandel, 2002 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Austronema Cobb, 1914 accepted as Austronema Cobb, 1914 (nomen dubium)· Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Monhysterida (Order) > Xyalidae (Family)

Austronomus
     Austronomus Iredale & Troughton, 1934 accepted as Tadarida Rafinesque, 1814 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Molossidae (Family)
     Austronomus Troughton, 1941 accepted as Tadarida Rafinesque, 1814 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Molossidae (Family)

Austroperipatus
     Austroperipatus Baehr, 1977 · Animalia (Kingdom) > Onychophora (Phylum) > Udeonychophora (Class) > Euonychophora (Order) > Peripatopsidae (Family)
 Austroperipatus Sedgwick, 1908 accepted as Peripatus Guilding, 1826 · Animalia (Kingdom) > Onychophora (Phylum) > Udeonychophora (Class) > Euonychophora (Order) > Peripatidae (Family)

Austroscolex
     Austroscolex Müller & Hinz-Schallreuter, 1993 † (uncertain)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)
     Austroscolex Jamieson, 1977 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)

Austrostrongylus
     Austrostrongylus Chandler, 1924 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Herpetostrongylidae (Family)
 Austrostrongylus Durette-Desset, 1971 accepted as Odilia Durette-Desset, 1973 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Heligmonellidae (Family)

Austrotoma
     Austrotoma Finlay, 1924 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Conoidea incertae sedis (Family)
     Austrotoma Riek, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)

Autalia
 Autalia Mannerheim, 1830 accepted as Autalia Leach in Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Autalia Leach in Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Autana
     Autana C.T. Philbrick, 2011 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Podostemaceae (Family)
     Autana González-Sponga, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pholcidae (Family)

Autanepsia
 Autanepsia Turner, 1910 accepted as Cyneoterpna Prout, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Autanepsia Turner, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Automata
     Automata Walker, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Automata Carus, 1888 accepted as Automate De Man, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Alpheidae (Family)

Automola
     Automola Loew, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Richardiidae (Family)
 Automola Meyrick, 1883 accepted as Autosticha Meyrick, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Autostichidae (Family)

Automolis
     Automolis Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Automolis Hübner, 1819 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Automolus
 Automolus Burmeister, 1855 accepted as Automolius Britton, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Automolus Graff, 1882 accepted as Paramonotus Meixner, 1938 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Proseriata (Order) > Monocelididae (Family)
 Automolus Kirsch, 1871 accepted as Epispales Kirsch, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Automolus Reichenbach, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Furnariidae (Family)
 Automolus Marshall, 1870 accepted as Automolus Marshall, 1870 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Autonoe
     Autonoe Rafinesque, 1815 accepted as Autonoe Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Autonoe Stål, 1866 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphrophoridae (Family)
 Autonoe Guppy, 1868 accepted as Ellobium Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ellobiida (Order) > Ellobiidae (Family)
     Autonoe (Webb & S. Berthelot) F. Speta, 1998 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
     Autonoe Bruzelius, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Aoridae (Family)
     Autonoe Gray, 1852 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Autonoë
 Autonoë Gray, 1852 accepted as Autonoe Gray, 1852 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
 Autonoë Stål, 1866 accepted as Autonoe Stål, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphrophoridae (Family)
 Autonoë Guppy, 1868 accepted as Autonoe Guppy, 1868 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Autonomos
     Autonomos de Folin, ? 1882 accepted as Autonomos de Folin, ? 1882 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Autonomos de Folin, ? 1885 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Autoplectus
 Autoplectus Balsamo-Crivelli, 1843 accepted as Mermis Dujardin, 1842 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Mermithida (Order) > Mermithidae (Family)
 Autoplectus Raffray, 1883 accepted as Apotectus Newton & Chandler, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Autunia
     Autunia F. Krasser, 1921 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Peltaspermales (Order) > Autuniaceae (Family)
     Autunia Rusconi, 1955 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)

Auxides
     Auxides Jordan, 1919 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Auxides Gray, 1842 accepted as Auxides Gray, 1842 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Avakubia
 Avakubia Lessert, 1927 accepted as Pellolessertia Strand, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Avakubia Pilsbry, 1919 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Avalonia
     Avalonia Walcott, 1889 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Atopidae (Family)
     Avalonia Seeley, 1898 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Avardaria
     Avardaria Ali-Zade, 1932 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Littorinimorpha incertae sedis (Family)
     Avardaria Andrussov, 1923 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Avarua
 Avarua Marples, 1955 accepted as Avaruarachne Sherwood, 2021 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Avarua Baker, 1938 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Avela
     Avela Walker, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Avela Nouzarede, 1975 † accepted as Avelia Nouzarède, 1977 · Chromista (Kingdom) > Ciliophora (Phylum) > Karyorelictea (Class) > Karyorelictida (Order) > Geleiidae (Family)

Avellana
     Avellana Paulsen, 1931 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Avellana d'Orbigny, 1843 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Cephalaspidea (awaiting allocation) (Family)

Avena
     Avena Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Avena Opitz, 2011 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)
 Avena Hall ex J.A. Scopoli, 1777 accepted as Lagurus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Avenastrum
 Avenastrum Opiz, 1852 accepted as Helictotrichon Besser in J.A. Schultes & J.H. Schultes, 1827 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Avenastrum Jessen, 1863 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Avenella
     Avenella Dalyell, 1847 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Ctenostomatida (Order) > Vesiculariidae (Family)
     Avenella M.J. Bluff ex S.T.N. Drejer, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Avenella F. Parlatore, 1848 accepted as Avenella M.J. Bluff ex S.T.N. Drejer, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Avia
     Avia Vialov, 1936 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Avia Navás, 1912 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)

Avicularia
     Avicularia Lamarck, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theraphosidae (Family)
     Avicularia (Meisner) Börner, 1912 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Polygonaceae (Family)
 Avicularia Gray, 1848 accepted as Bugulina Gray, 1848 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Bugulidae (Family)

Aviculina
     Aviculina Dubois de Montpéreux, 1837 † accepted as Aviculina Dubois de Montpéreux, 1837 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Aviculina d'Orbigny in Dubois de Montpéreux, 1843 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Aviculoperna
     Aviculoperna Cossmann, 1887 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pteriidae (Family)
     Aviculoperna Pcelincev, 1931 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Avocettina
 Avocettina Mulsant & Verreaux, 1866 accepted as Avocettina Mulsant & Verreaux, 1866 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Avocettina Jordan & Davis, 1891 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Nemichthyidae (Family)

Avonia
     Avonia Thomas, 1914 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productellidae (Family)
     Avonia (E.H.F. Meyer ex E. Fenzl) G.D. Rowley, 1994 accepted as Anacampseros Linnaeus, 1758 (junior subjective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Anacampserotaceae (Family)

Avotrichodactylus
     Avotrichodactylus Pretzmann, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Trichodactylidae (Family)
     Avotrichodactylus Pretzmann, 1980 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Malacostraca (awaiting allocation) (Order) > Malacostraca (awaiting allocation) (Family)

Awadia
     Awadia Abdallah & Fahmy, 1969 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Awadia Abbass, 1962 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Awaous
     Awaous Valenciennes in Cuvier & Valenciennes, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gobiidae (Family)
 Awaous Steindachner, 1860 accepted as Awaous Valenciennes in Cuvier & Valenciennes, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gobiidae (Family)

Axelinus
     Axelinus Kryzhanovskii, 1976 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
 Axelinus Kryzhanovskij, 1974 accepted as Axelinus Kryzhanovskii, 1976 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Axelrodia
     Axelrodia Géry, 1965 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)
     Axelrodia B. Cornet, 1986 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Gnetopsida (Class) > Gnetales (Order) > Gnetaceae (Family)

Axestus
     Axestus Dejean, 1835 accepted as Axestus Dejean, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Axestus Cope, 1872 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Axia
 Axia Luther, 1955 accepted as Axiola Luther, 1955 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Dalyelliidae (Family)
 Axia Eschscholtz, 1825 accepted as Axiotima Eschscholtz, 1829 · Animalia (Kingdom) > Ctenophora (Phylum) > Tentaculata (Class) > Lobata (Order) > Lobata incertae sedis (Family)
 Axia Ferguson, 1954 accepted as Macrostomum Schmidt, 1848 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Macrostomida (Order) > Macrostomidae (Family)
 Axia H. Milne Edwards, 1873 accepted as Axius Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Axiidae (Family)
     Axia Hübner, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Cimeliidae (Family)
 Axia Hübner, 1825 accepted as Nycteola Hübner, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nolidae (Family)
     Axia Loureiro, 1790 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)

Axiagasta
     Axiagasta Turner, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
     Axiagasta Meyrick, 1930 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)

Axillaria
 Axillaria E. Gruber, 1896 accepted as · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Fucales (Order) > Fucaceae (Family)
     Axillaria Rafinesque, 1818 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)

Axina
     Axina Kirby, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)
     Axina Albers, 1850 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)

Axinaea
 Axinaea Poli, 1791 accepted as Glycymeris Da Costa, 1778 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Glycymerididae (Family)
     Axinaea Ruiz & Pavón, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Axine
     Axine Abildgaard, 1794 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Mazocraeidea (Order) > Axinidae (Family)
     Axine Yamaguti, 1938 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
 Axine Oken, 1815 accepted as Naobranchia Hesse, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Lernaeopodidae (Family)

Axinea
 Axinea A.L. de Jussieu, 1823 accepted as Axinaea Ruiz & Pavón, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
 Axinea Rafinesque, 1815 accepted as Axinea Rafinesque, 1815 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Glycymerididae (Family)

Axinella
 Axinella Lebedev & Parukhin, 1969 accepted as Caballeraxine Lebedev, 1972 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Mazocraeidea (Order) > Microcotylidae (Family)
     Axinella Schmidt, 1862 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Axinellida (Order) > Axinellidae (Family)

Axinia
     Axinia Colless, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Rhinophoridae (Family)
     Axinia Dautzenberg, 1893 accepted as Axinaea Poli, 1791 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Glycymerididae (Family)

Axinoderma
 Axinoderma Herrmannsen, 1845 accepted as Axinoderma Herrmannsen, 1845 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Axinoderma Lendenfeld, 1887 accepted as Cladorhiza Sars, 1872 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Cladorhizidae (Family)

Axinopalpis
     Axinopalpis Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Axinopalpis Duponchel & Chevrolat in D'Orbigny, 1842 accepted as Axinopalpis Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Axinopalpus
     Axinopalpus Le Conte, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Axinopalpus Gemminger & Harold, 1872 accepted as Axinopalpis Dejean, 1835 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Axinopalpus Redtenbacher, 1858 accepted as Axinopalpis Dejean, 1835 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Axinophorus
 Axinophorus Dejean in Dejean & Boisduval, 1830 accepted as Pseudomorpha Kirby, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Axinophorus Gray in Griffith, 1832 accepted as Catapiesis Solier in Audouin & Brullé, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Axinophorus Schönherr, 1838 accepted as Aeetes Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Axinopsis
     Axinopsis Tate, 1868 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Cycloconchidae (Family)
 Axinopsis G.O. Sars, 1878 accepted as Axinopsida Keen & Chavan in Chavan, 1951 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Thyasiridae (Family)

Axiothea
 Axiothea Pascoe, 1864 accepted as Rhytiphora Audinet-Serville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Axiothea Fåhraeus & Ryley, 1989 † · Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodontophorida (Order) > Gondolellidae (Family)
 Axiothea Malmgren, 1865 accepted as Axiothella Verrill, 1900 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Capitellida (Order) > Maldanidae (Family)

Axiotheata
     Axiotheata Dejean, 1835 accepted as Axiotheata Duponchel & Chevrolat in D'Orbigny, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Axiotheata Duponchel & Chevrolat in D'Orbigny, 1842 accepted as Sophraena Baly, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Axis
 Axis Gistel, 1848 accepted as Hybosa Duponchel & Chevrolat in D'Orbigny, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Axis Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)

Axius
     Axius Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Axiidae (Family)
 Axius Mulsant, 1850 accepted as Axius Mulsant, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Axoclisia
     Axoclisia Semenoff-Tian-Chansky, 1974 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)
     Axoclisia Semenoff-Tian-Chansky, 1972 † accepted as Axoclisia Semenoff-Tian-Chansky, 1974 † (nomen nudum)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)

Axocyathus
     Axocyathus de Fromentel, 1865 † · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Scleractinia (awaiting allocation) (Family)
     Axocyathus Alloiteau in Piveteau, 1952 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Axolotus
 Axolotus Gray, 1850 accepted as Axolotus Gray, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
 Axolotus Jarocki, 1822 accepted as Axolotus Jarocki, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)

Axona
     Axona Walker, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
 Axona Kramer, 1875 accepted as Brachypoda Forel, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Aturidae (Family)
     Axona Stål, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Axophylloides
     Axophylloides Wang & Zhao, 1989 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)
     Axophylloides Yabe & Hayasaka, 1915 † accepted as Axophylloides Yabe & Hayasaka, 1915 † (nomen nudum)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Aytonia
 Aytonia J.R. Forster & J.G.A. Forster, 1775 accepted as Plagiochasma J.G.C. Lehmann & Lindenberg in J.G.C. Lehmann, 1832 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Aytoniaceae (Family)
 Aytonia Linnaeus f., 1782 accepted as Nymania S.O. Lindberg, 1868 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Meliaceae (Family)

Aza
 Aza Walker, 1865 accepted as Colla Walker, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Bombycidae (Family)
 Aza Mulsant, 1850 accepted as Oenopia Mulsant, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)

Azara
 Azara d'Orbigny, 1842 accepted as Erodona Bosc, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Erodonidae (Family)
     Azara Ruiz & Pavón, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Azaria
 Azaria Kania, Krzemiński & Krzemińska, 2015 † accepted as Gonomyia Meigen, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Limoniidae (Family)
     Azaria Tryon, 1872 accepted as Agaria Gray, 1840 (misspelling - incorrect subsequent spelling)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Azilia
     Azilia Keyserling, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Tetragnathidae (Family)
     Azilia I.C. Hedge & J.M. Lamond in K.H. Rechinger, 1987 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Azinia
     Azinia G.A. Balueva, 1964 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Salviniales (Order) > Salviniales (awaiting allocation) (Family)
     Azinia Walker, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Azor
     Azor Leach in Sowerby, 1824 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneroida (awaiting allocation) (Family)
 Azor Brown, 1844 accepted as Azorinus Récluz, 1869 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Solecurtidae (Family)

Azoria
 Azoria López-González & Gili, 2001 accepted as Azoriella López-González & Gili, 2001 · Animalia (Kingdom) > Cnidaria (Phylum) > Octocorallia (Class) > Malacalcyonacea (Order) > Cerveridae (Family)
     Azoria Mulsant, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)

Azteca
     Azteca Forel, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)
 Azteca Jordan & Evermann, 1896 accepted as Aztecula Jordan & Evermann, 1898 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)

Azuayia
     Azuayia Rindge, 1983 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Azuayia Dodge, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Azuma
 Azuma Jordan & Snyder, 1902 accepted as Chirolophis Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Stichaeidae (Family)
     Azuma Needham, 1904 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)

Azygoplon
 Azygoplon Bale, 1888 accepted as Pycnotheca Stechow, 1919 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Kirchenpaueriidae (Family)
     Azygoplon Allman, 1883 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Plumulariidae (Family)

Azyrtalia
     Azyrtalia A.G. Vologdin & N.A. Drozdova, 1969 † (uncertain)· Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Rivulariaceae (Family)
     Azyrtalia Nazarov, 1973 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinellida (awaiting allocation) (Order) > Hexactinellida (awaiting allocation) (Family)
This service is powered by LifeWatch Belgium
Learn more»