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Homonyms

IRMNG homonym list - genus level - Initial letter = "T" (1895)

Please note, this is a provisional homonyms list from IRMNG on 2019-07-20, 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.

Tabacum
 Tabacum F.M. Opiz in F. Berchtold & F.M. Opiz, 1841 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)
 Tabacum Gilibert, 1781 accepted as Nicotiana Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)

Tabellina
     Tabellina V.S. Maljavkina, 1949 † accepted as Tabellina V.S. Maljavkina, 1949 † (unassessed) · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Tabellina Waterhouse, 1986 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Ingelarellidae (Family)

Taboga
     Taboga Dyar, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Taboga de Laubenfels, 1936 accepted as Tethya Lamarck, 1815 (junior synonym) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)

Tabularia
     Tabularia (F.T. Kützing) D.M. Williams & F.E. Round, 1986 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Fragilariales (Order) > Fragilariaceae (Family)
     Tabularia Soshkina, 1937 † accepted as Tabularia Soshkina, 1937 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Tabularia Lendenfeld, 1884 † accepted as Tubularia Linnaeus, 1758 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tubulariidae (Family)

Tachaea
     Tachaea Schioedte & Meinert, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Corallanidae (Family)
     Tachaea Leach, 1847 accepted as Tachaea Leach, 1847 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tachea
     Tachea Turton, 1831 accepted as Tachea Turton, 1831 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)
 Tachea Fleming, 1822 accepted as Dromaius Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Casuariiformes (Order) > Casuariidae (Family)

Tachia
 Tachia Blanford, 1863 accepted as Tachia Blanford, 1863 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)
     Tachia Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
 Tachia Persoon, 1805 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Tachinoestrus
     Tachinoestrus Portschinsky, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Tachinoestrus Grünberg, 1906 accepted as Anthophasia Speiser, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachiniscidae (Family)

Tachinopsis
     Tachinopsis Coquillett, 1897 accepted as Tachinopsis Coquillett, 1897 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Tachinopsis Fauvel, 1899 accepted as Ioma Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tachinus
     Tachinus Gravenhorst, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Tachinus Gozis, 1886 accepted as Tachinus Gozis, 1886 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tachopteryx
     Tachopteryx Selys, 1859 accepted as Tachopteryx Selys, 1859 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Petaluridae (Family)
     Tachopteryx Uhler, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Petaluridae (Family)

Tachus
 Tachus Jurine, 1807 accepted as Meria Illiger, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tiphiidae (Family)
 Tachus Sørensen, 1932 accepted as Tachusina Strand, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)

Tachybates
     Tachybates Guérin-Ménéville, 1844 accepted as Tachybates Guérin-Ménéville, 1844 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Tachybates Fitzinger, 1843 accepted as Tachybates Fitzinger, 1843 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Tachycellus
     Tachycellus Ganglbauer, 1891 accepted as Tachycellus Ganglbauer, 1891 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tachycellus Morawitz, 1863 accepted as Bradycellus Erichson, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tachycellus Horn, 1881-1882 accepted as Bradycellus Erichson, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tachycineta
     Tachycineta Cabanis, 1851 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Hirundinidae (Family)
     Tachycineta Brodkorb, 1957 † accepted as Tachycineta Brodkorb, 1957 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Passeriformes (awaiting allocation) (Family)

Tachycnemis
     Tachycnemis Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hyperoliidae (Family)
     Tachycnemis Bonvouloir, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)

Tachydroma
 Tachydroma Des Murs in Chenu, 1853 accepted as Tichodroma Illiger, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Sittidae (Family)
 Tachydroma Waltl, 1837 accepted as Tachydromia Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Empididae (Family)

Tachydromus
     Tachydromus Illiger, 1811 accepted as Tachydromus Illiger, 1811 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Tachydromus Daudin, 1802 accepted as Takydromus Daudin, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Lacertidae (Family)
 Tachydromus Oppel, 1811 accepted as Takydromus Daudin, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Lacertidae (Family)

Tachygonus
     Tachygonus Schönherr, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Tachygonus Drake, 1957 accepted as Tachygonus Drake, 1957 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Gerridae (Family)
     Tachygonus Guerin-Meneville, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tachymenis
     Tachymenis Wiegmann, 1835 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Tachymenis Motschoulsky, 1862 accepted as Mioptachys Bates, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tachynectes
     Tachynectes Marck, 1863 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Elopiformes (Order) > Elopiformes (awaiting allocation) (Family)
     Tachynectes Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Tachyophis
     Tachyophis Rochebrune, 1884 accepted as Tachyophis Rochebrune, 1884 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Tachyophis Mertens, 1934 accepted as Tachyophis Mertens, 1934 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Tachypetes
     Tachypetes Vieillot, 1816 accepted as Tachypetes Vieillot, 1816 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tachypetes Dejean, 1835 accepted as Tachypetes Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Tachyptera
     Tachyptera Berge, 1842 accepted as Tachyptera Berge, 1842 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Satyridae (Family)
     Tachyptera Dahlbom, 1844 accepted as Tachyptera Dahlbom, 1844 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Tachyptera Barnes & McDunnough, 1911 accepted as Eutachyptera Barnes & MacDunnough, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lasiocampidae (Family)

Tachypterus
     Tachypterus Guérin-Ménéville in Duperry, 1838 accepted as Tachypterus Guérin-Ménéville in Duperry, 1838 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Tachypterus Dietz, 1891 accepted as Anthonomus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tachypus
     Tachypus Stephens, 1828 accepted as Tachypus Stephens, 1828 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Tachypus Dejean, 1831 accepted as Tachypus Dejean, 1831 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tachypus Weber, 1801 accepted as Carabus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Tachypus Dejean, 1821 accepted as Asaphidion Des Gozis, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tachys
 Tachys Schoenherr, 1806 accepted as Bembidion Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Tachys Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tachys Stephens, 1828 accepted as Tachys Dejean, 1821 (later usage) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Tachys Melsheimer, 1806 accepted as Tachys Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tachytrechus
     Tachytrechus Haliday in Walker, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
     Tachytrechus Stannius, 1831 accepted as Tachytrechus Stannius, 1831 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Tachyusa
     Tachyusa Erichson, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tachyusa Szépligeti, 1903 accepted as Tachyusa Szépligeti, 1903 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Taczanowskia
     Taczanowskia Keyserling, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
     Taczanowskia Sztolcman, 1926 accepted as Taczanowskia Sztolcman, 1926 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Tadorna
     Tadorna Boie, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Anseriformes (Order) > Anatidae (Family)
     Tadorna Oken, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Anseriformes (Order) > Anatidae (Family)

Tadzhikistania
     Tadzhikistania Barnard & Barnard, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Gammaridae (Family)
     Tadzhikistania Bogacev, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Taenia
     Taenia Linnaeus, 1758 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Taeniidae (Family)
 Taenia Pallas, 1766 accepted as Taenia Pallas, 1766 · Animalia (Kingdom) > Acanthocephala (Phylum) > Archiacanthocephala (Class) > Oligacanthorhynchida (Order) > Oligacanthorhynchidae (Family)
     Taenia Stebnicka, 2003 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Taenia Walker, 1866 accepted as Taenia Walker, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Taenia Artedi in Röse, 1793 accepted as Cepola Linnaeus, 1764 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cepolidae (Family)
     Taenia · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Porocephalida (Order) > Linguatulidae (Family)

Taenidia
     Taenidia (J. Torrey & A. Gray) Drude in Engler & Prantl, 1898 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Taenidia Rivalier, 1950 accepted as Cephalota Dokhturov, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Taenidium
     Taenidium G. Targioni Tozzetti, 1826 accepted as Taenidium G. Targioni Tozzetti, 1826 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Potamogetonaceae (Family)
     Taenidium O. Heer, 1877 † · Animalia (Kingdom) > Trace fossils (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Taeniocerus
     Taeniocerus Kaup, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Passalidae (Family)
     Taeniocerus Dlabola, 1974 † accepted as Taeniocerus Dlabola, 1974 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Taeniocerus Blandford, 1893 accepted as Scolytoplatypus Schaufuss, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Taeniodon
     Taeniodon Dunker, 1848 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
 Taeniodon Döderlein in Steindachner & Döderlein, 1883 accepted as Liopropoma Gill, 1861 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Serranidae (Family)

Taeniodus
     Taeniodus Gervais, 1859 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Theridomyidae (Family)
     Taeniodus St. John & Worthen, 1883 † accepted as Taeniodus St. John & Worthen, 1883 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Taeniola
     Taeniola Dall, 1904 accepted as Taeniola Dall, 1904 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Taeniola R.A. Salisbury, 1866 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
 Taeniola Pallas, 1760 accepted as Taenia Linnaeus, 1758 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Taeniidae (Family)
 Taeniola Bonorden, 1851 accepted as Torula Persoon, 1794 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Taenioma
     Taenioma J.Agardh, 1863 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Delesseriaceae (Family)
 Taenioma Amyot, 1846 accepted as Taenioma Amyot, 1846 (Published in a rejected work (ICZN)) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Taenionema
     Taenionema Banks, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Taeniopterygidae (Family)
     Taenionema Bolivar, 1906 accepted as Taenionema Bolivar, 1906 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Phasmatidae (Family)
 Taenionema Eigenmann & Bean, 1907 accepted as Brachyplatystoma Bleeker, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Pimelodidae (Family)

Taenionotus
     Taenionotus Haupt, 1950 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Taenionotus Oken, 1816 accepted as Taenionotus Oken, 1816 (Published in a rejected work (ICZN)) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Taenionotus Swainson, 1839 accepted as Taenianotus Lacepède, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Scorpaenidae (Family)
 Taenionotus Agassiz, 1846 accepted as Taenianotus Lacepède, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Scorpaenidae (Family)

Taeniophis
     Taeniophis Girard, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Taeniophis Kaup, 1859 accepted as Gymnothorax Bloch, 1795 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Muraenidae (Family)

Taeniophora
     Taeniophora Stål, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Romaleidae (Family)
     Taeniophora K.W. Klement, 1960 † accepted as Taeniophora K.W. Klement, 1960 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacaceae (Family)
 Taeniophora P.A. Karsten, 1886 accepted as Phragmotrichum G. Kunze, 1823 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Taeniophorus
     Taeniophorus Linnavuori, 1952 accepted as Taeniophorus Linnavuori, 1952 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Taeniophorus Bertelsen & Marshall, 1956 accepted as Eutaeniophorus Bertelsen & Marshall, 1958 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cetomimiformes (Order) > Cetomimidae (Family)

Taeniophyllum
 Taeniophyllum Lesquereux, 1878 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Taeniophyllum Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Taeniophyllum Pomel, 1849 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadales (Order) > Cycadales (awaiting allocation) (Family)

Taenioptera
     Taenioptera Bonaparte, 1830 accepted as Taenioptera Bonaparte, 1830 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
     Taenioptera Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Micropezidae (Family)

Taeniopteris
 Taeniopteris W.J. Hooker, 1841 accepted as Vittaria Smith, 1793 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)
     Taeniopteris A.T. Brongniart, 1828 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadales (Order) > Crossozamiaceae (Family)

Taeniopteryx
     Taeniopteryx Pictet, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Taeniopterygidae (Family)
 Taeniopteryx Janse, 1920 accepted as Metopteryx Fletcher in Watson, Fletcher & Nye, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)

Taeniosoma
     Taeniosoma Bolivar, 1897 accepted as Taeniosoma Bolivar, 1897 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Phasmatidae (Family)
     Taeniosoma Stimpson, 1857 · Animalia (Kingdom) > Nemertea (Phylum) > Anopla (Class) > Heteronemertea (Order) > Valenciniidae (Family)

Taeniostola
     Taeniostola Bezzi, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
 Taeniostola Meyrick, 1920 accepted as Taeniostolella Fletcher, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Glyphipterigidae (Family)

Taenioxylon
     Taenioxylon Felix, 1882 † accepted as Taenioxylon Felix, 1882 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Taenioxylon L. Crié, 1889 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Taeniura
     Taeniura Gregory, 1897 accepted as Taeniura Gregory, 1897 (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Taeniura Müller & Henle, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Dasyatidae (Family)

Taenophthalmus
 Taenophthalmus Günther & Zumpt, 1933 accepted as Tainophthalmus Desbrochers, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Taenophthalmus Winkler, 1932 accepted as Tainophthalmus Desbrochers, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tafalla
     Tafalla Walker, 1869 accepted as Tafalla Walker, 1869 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tafalla D. Don, 1831 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Tafalla Ruiz & Pavon, 1794 accepted as Tafalla Ruiz & Pavon, 1794 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Chloranthales (Order) > Chloranthaceae (Family)

Taffia
     Taffia Butts, 1926 † accepted as Taffia Butts, 1926 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Strophomenatida (Order) > Taffiidae (Family)
     Taffia Ulrich, 1926 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Strophomenatida (Order) > Taffiidae (Family)

Tagalus
     Tagalus Gebien, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Tagalus P. Fischer, 1887 accepted as Tagelus Gray, 1847 (invalid: unjustified emendation of Tagelus) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Solecurtidae (Family)

Tagassu
 Tagassu Simpson, 1929 accepted as Tayassu Fischer, 1814 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Tayassuidae (Family)
 Tagassu von Frisch, 1775 accepted as Pecari Reichenbach, 1835 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Tayassuidae (Family)

Tahitia
     Tahitia Coiffait, 1976 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tahitia Adams & Angas, 1865 accepted as Tahitia Adams & Angas, 1865 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Truncatellidae (Family)
 Tahitia Burret, 1926 accepted as Christiana A.P. de Candolle, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Taieria
     Taieria Forster in Forster & Blest, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Gnaphosidae (Family)
 Taieria Finlay & Marwick, 1937 † accepted as Galeodea Link, 1807 (synonym) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Cassidae (Family)

Taihangshania
     Taihangshania Young, 1979 † accepted as Taihangshania Young, 1979 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Synapsida (awaiting allocation) (Order) > Synapsida (awaiting allocation) (Family)
     Taihangshania Zhang & Wang, 1985 † accepted as Taihangshania Zhang & Wang, 1985 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > (Class) > Trilobitomorpha (awaiting allocation) (Order) > Trilobitomorpha (awaiting allocation) (Family)

Taimyborus
     Taimyborus Lukashevich, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chaoboridae (Family)
     Taimyborus Lukashevich, 1999 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chaoboridae (Family)

Taimyria
     Taimyria Lyutkevich, 1951 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Modiomorphoida (Order) > Modiomorphoida (awaiting allocation) (Family)
     Taimyria V.A. Chachlov in L.L. Khalfin, 1964 † accepted as Taimyria V.A. Chachlov in L.L. Khalfin, 1964 † (unassessed) · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Taimyrites
     Taimyrites Vavilov & Arkadiev in Vavilov & Arkadev, 1986 † accepted as Taimyrites Vavilov & Arkadiev in Vavilov & Arkadev, 1986 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Taimyrites Novojilov, 1958 † accepted as Taimyrites Novojilov, 1958 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Branchiopoda (awaiting allocation) (Order) > Branchiopoda (awaiting allocation) (Family)

Tainiopsis
     Tainiopsis B. Hayata, 1914 accepted as Tainiopsis B. Hayata, 1914 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Tainiopsis Schlechter, 1915 accepted as Eriodes Rolfe, 1915 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tainocarychium
     Tainocarychium Schutt, 1988 accepted as Tainocarychium Schutt, 1988 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Tainocarychium Schutt & Velitzelos, 1991 † accepted as Tainocarychium Schutt & Velitzelos, 1991 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Tairona
     Tairona Righi, 1984 accepted as Tairona Righi, 1984 (unassessed) · Animalia (Kingdom) > Annelida (Phylum) > Oligochaeta (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)
     Tairona Hebard, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Phalangopsidae (Family)

Taiwanella
     Taiwanella Takakuwa, 1936 accepted as Taiwanella Takakuwa, 1936 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Taiwanella Huang, 2000 † accepted as Taiwanella Huang, 2000 † (unassessed) · Chromista (Kingdom) > Retaria (Phylum) > Foraminifera incertae sedis (Class) > Foraminifera (awaiting allocation) (Order) > Foraminifera (awaiting allocation) (Family)

Taiwania
     Taiwania Hayata, 1906 · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinales (Order) > Cupressaceae (Family)
 Taiwania Spaeth, 1913 accepted as Cassida Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Taiwania Tsuneki, 1989 accepted as Taiwania Tsuneki, 1989 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pompilidae (Family)

Takagia
     Takagia Tang, 1984 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
     Takagia Matsumura, 1942 accepted as Takagia Matsumura, 1942 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Takagia Negrobov, 1973 accepted as Sphyrotarsus Mik, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Takahashia
     Takahashia Cockerell, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coccidae (Family)
     Takahashia Matsumoto, 1984 † accepted as Takahashia Matsumoto, 1984 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Tetragonitidae (Family)
 Takahashia Ananthakrishnan, 1970 † accepted as Leeuwenia Karny, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)

Takahashiella
     Takahashiella Borkhsenius, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
     Takahashiella Cooper, 2012 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Lytoceratidae (Family)

Takakia
     Takakia Yeates, 1967 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Tripylida (Order) > Prismatolaimidae (Family)
     Takakia Hattori & Inoue, 1958 · Plantae (Kingdom) > Bryophyta (Phylum) > Takakiopsida (Class) > Takakiales (Order) > Takakiaceae (Family)

Takanoa
     Takanoa I.V. Makarova, 1994 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Centrales (Order) > Thalassiosiraceae (Family)
     Takanoa Rodendorf, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Takashia
     Takashia Okano & Okano, 1985 accepted as Takashia Okano & Okano, 1985 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)
 Takashia Bernard, 1989 accepted as Pendaloma Iredale, 1930 (synonym) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Periplomatidae (Family)

Taklamakania
     Taklamakania Zhang, 1979 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphida (awaiting allocation) (Family)
     Taklamakania Ferrer & Yvinec, 2004 accepted as Taklamakania Ferrer & Yvinec, 2004 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tala
     Tala Blanco, 1845 accepted as Tala Blanco, 1845 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
     Tala Malaise, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)
 Tala Sama, 2005 accepted as Kabylophytoecia Sama, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Talanus
     Talanus Dejean, 1834 accepted as Talanus Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Talanus Mäklin, 1878 accepted as Talanus Mäklin, 1878 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Talanus Jacquelin in Ramon de la Sagra, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Talassia
     Talassia Warén & Bouchet, 1988 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vanikoridae (Family)
 Talassia E.P. Korovin, 1962 accepted as Ferula Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Talaus
     Talaus Simon, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Thomisidae (Family)
 Talaus Moreira, 1913 accepted as Dipteropeltis Calman, 1912 (synonym ) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Arguloida (Order) > Argulidae (Family)

Talbotia
 Talbotia S. Moore, 1913 accepted as Afrofittonia Lindau, 1913 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
     Talbotia Bernardi, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)
     Talbotia Balfour, 1868 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Pandanales (Order) > Velloziaceae (Family)

Talima
     Talima Walker, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Limacodidae (Family)
 Talima Heller, 1932 accepted as Talimanus Marshall, 1943 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Talitha
     Talitha Faure, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)
 Talitha Clarke, 1978 accepted as Hozbeka Özdikmen, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)

Talitropsis
     Talitropsis Bolivar, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Rhaphidophoridae (Family)
     Talitropsis Burt, 1934 accepted as Talitropsis Burt, 1934 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Talona
     Talona Gray, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Pholadidae (Family)
     Talona Gray, 1840 accepted as Talona Gray, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Pholadidae (Family)

Talopia
     Talopia Gray, 1840 accepted as Talopia Gray, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Talopia Gray, 1842 accepted as Monilea Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Trochidae (Family)

Talpacarus
 Talpacarus Grandjean, 1939 accepted as Torpacarus Grandjean, 1950 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Lohmanniidae (Family)
 Talpacarus Zachvatkin, 1941 accepted as Labidophorus Kramer, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Glycyphagidae (Family)

Talpasorex
 Talpasorex Lesson, 1827 accepted as Scalopus Geoffroy, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Insectivora (Order) > Talpidae (Family)
 Talpasorex Schinz in Cuvier, 1821 accepted as Condylura Illiger, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Insectivora (Order) > Talpidae (Family)

Talpina
 Talpina Dahms & Pottek, 1992 accepted as Dahmsopottekina Özdikmen, 2009 (junior homonym of Talpina Hagenow, 1840 (Phoronid)) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Canthocamptidae (Family)
 Talpina Hagenow, 1840 † accepted as Phoronis Wright, 1856 · Animalia (Kingdom) > Phoronida (Phylum) > (Class) > (Order) > Phoronidae (Family)

Talus
     Talus Haas, 1968 † accepted as Talus Haas, 1968 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
 Talus Gistl, 1848 accepted as Ptychodes Audinet-Serville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tamandua
     Tamandua Gray, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pilosa (Order) > Myrmecophagidae (Family)
     Tamandua Rafinesque, 1815 accepted as Tamandua Gray, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pilosa (Order) > Myrmecophagidae (Family)

Tamania
     Tamania J. Cuatrecasas, 1976 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Tamania Pyrcz, 1995 accepted as Tamania Pyrcz, 1995 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Tamanukia
     Tamanukia Baranov, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Tamanukia Hayashi, 1960 accepted as Robustanoplodera · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tamarella
     Tamarella M.A. Senkevitsch in V.N. Dubatolov & G.A. Stukalina, 1991 † accepted as Tamarella M.A. Senkevitsch in V.N. Dubatolov & G.A. Stukalina, 1991 † (unassessed) · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Spongiophytaceae (Family)
     Tamarella Owen, 1965 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Laqueidae (Family)

Tamayoa
     Tamayoa Baker, 1925 accepted as Tamayoa Baker, 1925 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Scolodontidae (Family)
     Tamayoa Badillo, 1944 accepted as Tamayoa Badillo, 1944 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Tambusa
     Tambusa Distant, 1908 accepted as Tambusa Distant, 1908 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tambusa Distant, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tamerlania
     Tamerlania Skrjabin, 1924 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Eucotylidae (Family)
     Tamerlania Paramonov, 1931 accepted as Tamerlania Paramonov, 1931 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)

Tamia
 Tamia P. Ravenna, 2001 accepted as Calydorea Herbert, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
 Tamia Lesson, 1827 accepted as Tamias Illiger, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Sciuridae (Family)

Tamnophilus
 Tamnophilus Vieillot, 1816 accepted as Thamnophilus Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Thamnophilidae (Family)
 Tamnophilus Germar, 1829 accepted as Magdalis Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tamonea
     Tamonea Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)
 Tamonea Aublet ex F. Krasser in Engler & Prantl, 1893 accepted as Miconia Ruiz & Pavon, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Tana
     Tana B.-E. van Wyk, 1999 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Tana Reed, 1888 accepted as Tana Reed, 1888 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
 Tana Lyon, 1913 accepted as Tupaia Raffles, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Insectivora (Order) > Tupaiidae (Family)

Tanagra
 Tanagra Linnaeus, 1764 accepted as Tanagra Linnaeus, 1764 (Suppressed name (ICZN)) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Emberizidae (Family)
 Tanagra Duponchel in Godart, 1829 accepted as Odezia Boisduval, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Tanagrella
     Tanagrella Swainson, 1837 accepted as Tanagrella Swainson, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tanagrella Swainson, 1837 accepted as Tanagrella Swainson, 1837 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Tanais
     Tanais H. Milne Edwards, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Tanaidacea (Order) > Tanaididae (Family)
     Tanais Latreille, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Tanaidacea (Order) > Tanaididae (Family)

Tanaodon
     Tanaodon Simpson, 1927 † accepted as Tanaodon Simpson, 1927 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Dryolestida (Order) > Paurodontidae (Family)
     Tanaodon Kirk, 1927 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Anomalodesmacea (awaiting allocation) (Family)

Tanarus
     Tanarus Hustache, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tanarus Labram & Imhoff, 1843 accepted as Tanaos Schönherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Tancrea
     Tancrea Püngeler, 1898 accepted as Tancrea Püngeler, 1898 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tancrea F. Stockmans, 1948 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Protolepidodendrales (Order) > Sublepidodendraceae (Family)

Tandonella
     Tandonella Jain, 1978 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Tandonella S.S. Prasad & R.A.B. Verma, 1970 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Mycosphaerellaceae (Family)

Tandonia
     Tandonia Lessona & Pollonera, 1882 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Milacidae (Family)
 Tandonia Moquin-Tandon in Alph. de Candolle, 1849 accepted as Anredera A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Basellaceae (Family)
 Tandonia Baillon, 1861 accepted as Tannodia Baillon, 1861 (junior homonym) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Tandonia M.D. Mehrotra, 1991 accepted as Tandonea M.D. Mehrotra, 1991 (incorrect subsequent spelling) · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Tangana
     Tangana Davies, 2003 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Amphinectidae (Family)
     Tangana Ramme, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Tangaroa
     Tangaroa Lehtinen, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Oxyopidae (Family)
     Tangaroa Marcus, 1952 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Solenopharyngidae (Family)
 Tangaroa Bell & Bell, 1978 accepted as Tangarona Bell & Bell, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Rhysodidae (Family)

Tangia
     Tangia Stål, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)
 Tangia Chan, 1970 accepted as Lipocheilus Anderson, Talwar & Johnson, 1977 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Lutjanidae (Family)

Tangiopsis
     Tangiopsis Uhler, 1901 accepted as Tangiopsis Uhler, 1901 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Dictyopharidae (Family)
     Tangiopsis Melichar, 1915 accepted as Tangiopsis Melichar, 1915 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)
     Tangiopsis Skrjabin & Guschanskaja, 1955 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Derogenidae (Family)

Tangshihella
     Tangshihella Hupé, 1955 † accepted as Tangshihella Hupé, 1955 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Tangshihella Hupé in Piveteau, 1953 † accepted as Tangshihella Hupé in Piveteau, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Tania
     Tania J.M. Egea, P. Torrente & H. Sipman in J.M. Egea et al., 1995 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Arthoniaceae (Family)
     Tania Gray, 1842 accepted as Tania Gray, 1842 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tania Gray, 1840 accepted as Tania Gray, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tania Matsumaru, 1990 † accepted as Tania Matsumaru, 1990 † (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > Sarcomastigota (awaiting allocation) (Order) > Sarcomastigota (awaiting allocation) (Family)

Taniaspidella
     Taniaspidella † accepted as Taniaspidella † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Taniaspidella Semashko, 1971 † accepted as Taniaspidella Semashko, 1971 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Tanichthys
     Tanichthys Lin, 1932 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Tanichthys Jin, 1991 † accepted as Tanolepis Jin, 1994 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osteoglossiformes (Order) > Hiodontidae (Family)

Taniella
     Taniella Finlay & Marwick, 1937 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Naticidae (Family)
 Taniella Kase, 1990 † accepted as Tanimasanoria Kase, 1992 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)

Tanna
     Tanna Berland, 1938 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Tanna Distant, 1905 accepted as Tanna Distant, 1905 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)

Tanousia
     Tanousia Servain, 1881 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Lymnaeidae (Family)
     Tanousia Bourguignat, 1881 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)

Tantalides
     Tantalides Reichenbach, 1852 accepted as Tantalides Reichenbach, 1852 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Tantalides Wagler, 1832 accepted as Plegadis Kaup, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Threskiornithidae (Family)

Tantillus
     Tantillus Chaudoir, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Tantillus C.J. Felix & P.P. Burbridge, 1967 † accepted as Tantillus C.J. Felix & P.P. Burbridge, 1967 † (unassessed) · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Tantunia
     Tantunia † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)
     Tantunia Kollmann, 2005 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ficidae (Family)

Tanyglossa
     Tanyglossa Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)
     Tanyglossa Duda, 1925 accepted as Tanyglossa Duda, 1925 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Drosophilidae (Family)

Tanygnathus
     Tanygnathus Wagler, 1832 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Psittaciformes (Order) > Psittacidae (Family)
 Tanygnathus Erichson, 1839 accepted as Atanygnathus Jacobson, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tanygnathus Erichson, 1837 accepted as Atanygnathus Jacobson, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tanymecus
     Tanymecus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tanymecus Thomson, 1859 accepted as Tanymecus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tanypleurus
     Tanypleurus Steenstrup & Lütken, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Tanypleuridae (Family)
 Tanypleurus Raffray, 1890 accepted as Natypleurus Newton & Thayer, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tanyptera
     Tanyptera Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)
 Tanyptera Mabille, 1877 accepted as Pteroteinon Watson, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)

Tanypus
     Tanypus Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)
 Tanypus Oppel, 1812 accepted as Grallina Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Corvidae (Family)
 Tanypus Keyserling in Koch (Keyserling), 1882 accepted as Margaromma Keyserling in Koch (Keyserling), 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Tanyrhinus
     Tanyrhinus Mannerheim, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tanyrhinus Farran, 1936 accepted as Teneriforma Grice & Hulsemann, 1967 (synonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Spinocalanidae (Family)

Tanysphyra
     Tanysphyra Berendt, 1845 accepted as Tanysphyra Berendt, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Tanysphyra Loew, 1850 † accepted as Tanysphyra Loew, 1850 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Limoniidae (Family)

Tanystola
     Tanystola Turner, 1922 accepted as Tanystola Turner, 1922 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tanystola Motschoulsky, 1850 accepted as Tanystoma Motschoulsky, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tanystoma
     Tanystoma Motschoulsky, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tanystoma Reitter, 1907 accepted as Sericoda Kirby in Richardson, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tanystoma Benson, 1856 accepted as Hypselostoma Benson, 1856 (Invalid: junior homonym of Tanystoma Motschoulsky, 1845 [Coleoptera]; Hypselostoma is a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Hypselostomatidae (Family)

Tanystomium
     Tanystomium Berger, 1994 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Cryptochilidae (Family)
     Tanystomium Berger, 1979 accepted as Tanystomium Berger, 1979 (name only, no description or type species) · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Cryptochilidae (Family)
     Tanystomium Berger, 1964 accepted as Tanystomium Berger, 1994 (unassessed) · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Cryptochilidae (Family)

Tanzaniella
     Tanzaniella Lupu, 1979 accepted as Tanzaniella Lupu, 1979 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Neritidae (Family)
     Tanzaniella Hoffman, 1977 accepted as Tanzaniella Hoffman, 1977 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Chelodesmidae (Family)
 Tanzaniella Gillies, 1991 accepted as Tanzaniops McCafferty & Barber-James, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Baetidae (Family)

Taonurus
     Taonurus Fischer-Ooster, 1858 † · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Taonurus Fischer-Ooster, 1857 † accepted as Taonurus Fischer-Ooster, 1857 † · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Taonurus L.C.J.G. Saporta & A.F. Marion, 1881 † · Animalia (Kingdom) > Annelida (Phylum) > Annelida incertae sedis (Class) > Annelida incertae sedis (Order) > Annelida incertae sedis (Family)

Tapada
     Tapada Studer, 1820 accepted as Tapada Studer, 1820 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Succineidae (Family)
     Tapada Gray in Turton, 1840 accepted as Tapada Gray in Turton, 1840 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)

Tapaia
 Tapaia Oken, 1816 accepted as Tapaia Oken, 1816 (Published in a rejected work (ICZN)) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Phrynosomatidae (Family)
 Tapaia Gray, 1860 accepted as Tupaia Raffles, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Insectivora (Order) > Tupaiidae (Family)
 Tapaia Burnett, 1830 accepted as Tupaia Raffles, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Insectivora (Order) > Tupaiidae (Family)

Tapeina
     Tapeina Lepeletier & Serville, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tapeina Hedwig, 1806 accepted as Tapeinia Commerson ex A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
 Tapeina Brunner von Wattenwyl, 1878 accepted as Tapiena Bolivar, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Tapeinanthus
 Tapeinanthus Boissier ex Bentham in Alph. de Candolle, 1848 accepted as Thuspeinanta T. Durand, 1888 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Tapeinanthus Herbert, 1837 accepted as Narcissus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Tapeinia
     Tapeinia Commerson ex A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
 Tapeinia F.G. Dietrich, 1823 accepted as Tritonia Ker-Gawler, 1802 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Tapeinotus
     Tapeinotus Schoenherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Tapeinotus Schönherr, 1825 accepted as Tapeinotus Schoenherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tapera
     Tapera Thunberg, 1819 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Cuculiformes (Order) > Neomorphidae (Family)
     Tapera Bonaparte, 1857 accepted as Tapera Bonaparte, 1857 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Hirundinidae (Family)

Taperinha
     Taperinha Lane, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Taperinha Linnavuori, 1959 accepted as Taperinha Linnavuori, 1959 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Tapesia
     Tapesia (Persoon) Fuckel, 1870 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)
     Tapesia Bolivar, 1904 accepted as Tapesia Bolivar, 1904 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Pyrgomorphidae (Family)
 Tapesia C.F. Gaertn. accepted as Hamelia N.J. Jacquin, 1760 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Taphius
     Taphius Adams, 1855 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)
 Taphius Jacoby, 1897 accepted as Pathius Aslam, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Taphius Rafinesque, 1815 accepted as Taphius Rafinesque, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Taphozous
     Taphozous É. Geoffroy Saint-Hilaire, 1818 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Emballonuridae (Family)
 Taphozous Oken, 1816 accepted as Taphozous Oken, 1816 (Published in a rejected work (ICZN)) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Taphria
     Taphria Dejean, 1821 accepted as Taphria Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Taphria Dejean, 1828 accepted as Synuchus Gyllenhal, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Taphria E.M. Fries, 1821 accepted as Taphrina E.M. Fries, 1815 · Fungi (Kingdom) > Ascomycota (Phylum) > Taphrinomycetes (Class) > Taphrinales (Order) > Taphrinaceae (Family)

Taphroderes
     Taphroderes Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Taphroderes Schoenherr, 1833 † accepted as Taphroderopsis Scivittaro, 1975 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Taphroderes Wolfrum, 1929 accepted as Taphrodes Jordan, 1925 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Taphrognathus
     Taphrognathus Branson & Mehl, 1940 † · Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodontophorida (Order) > Conodonta (awaiting allocation) (Family)
     Taphrognathus Welles, 1947 † accepted as Taphrognathus Welles, 1947 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Temnospondyli (Order) > Plagiosauridae (Family)

Taphrophila
     Taphrophila C. Scheuer, 1988 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Tubeufiaceae (Family)
 Taphrophila Rondani, 1856 accepted as Antocha Osten-Sacken, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)

Taphrospira
     Taphrospira Blanford, 1905 accepted as Taphrospira Blanford, 1905 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Ariophantidae (Family)
     Taphrospira Skuja, 1948 accepted as Taphrospira Skuja, 1948 · Protozoa (Kingdom) > Protozoa incertae sedis (Phylum) > (Class) > (Order) > (Family)

Taphrostethus
 Taphrostethus Fieber, 1844 accepted as Cantacader Amyot & Serville, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tingidae (Family)
 Taphrostethus Schaufuss, 1882 accepted as Stethotaphrus Newton & Chandler, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tapia
     Tapia Belogurov & Fadeeva, 1985 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Ironida (Order) > Leptosomatidae (Family)
     Tapia P. Miller, 1754 accepted as Tapia P. Miller, 1754 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Capparaceae (Family)

Tapina
     Tapina Dalman in Billberg, 1820 accepted as Tapina Dalman in Billberg, 1820 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tapina C.F.P. Martius, 1829 accepted as Sinningia C.G.D. Nees, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
 Tapina Laporte, 1833 accepted as Euryphagus Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tapina Gemminger & Harold, 1873 accepted as Tapeina Lepeletier & Serville, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tapinella
     Tapinella E.-J. Gilbert, 1931 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Boletales (Order) > Tapinellaceae (Family)
     Tapinella Enderlein, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Pachytroctidae (Family)

Tapinopsis
 Tapinopsis Blanchard in Gay, 1851 accepted as Strangaliodes Schönherr, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tapinopsis Agassiz, 1846 accepted as Tapenopsis Solier, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Tapinopsis Gemminger & von Harold, 1870 accepted as Tapenopsis Solier, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tapinopus
     Tapinopus Milne-Edwards, 1892 † accepted as Tapinopus Milne-Edwards, 1892 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Cathartiformes (Order) > Cathartidae (Family)
     Tapinopus Saussure, 1878 accepted as Tapinopus Saussure, 1878 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Tapinostethus
     Tapinostethus Faust, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
 Tapinostethus Csiki, 1936 accepted as Tapinostethus Faust, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Tapirotherium
     Tapirotherium Lartet in Bronn, 1848 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Suidae (Family)
 Tapirotherium Blainville, 1817 † accepted as Lophiodon Cuvier, 1821-22 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Anchilophidae (Family)

Tapoa
 Tapoa Lesson, 1842 accepted as Phascogale Temminck, 1824 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Dasyuromorphia (Order) > Dasyuridae (Family)
     Tapoa Owen, 1839 accepted as Trichosurus Lesson, 1828 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Diprotodontia (Order) > Phalangeridae (Family)

Tappanella
     Tappanella Gudina & Saidova, 1969 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Glandulinidae (Family)
 Tappanella Anderson, 1984 † accepted as Helentappanella Andersen, 1985 † (Junior homonym of Tappanella Gudina & Saidova, 1969) · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Miliolidae (Family)

Taprobanus
 Taprobanus Distant, 1911 accepted as Pneustocerus Horváth, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Berytidae (Family)
 Taprobanus Loos, 1949 accepted as Xiphinemella Loos, 1950 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Dorylaimida (Order) > Dorylaimidae (Family)

Tara
     Tara Peckham, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Tara Duncan, 1994 accepted as Dana Lowry, 2011 (preoccupied) · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Talitridae (Family)
 Tara Molina, 1789 accepted as Caesalpinia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Tarachia
     Tarachia Hübner, 1825 accepted as Tarachia Hübner, 1825 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tarachia K.B. Presl, 1851 accepted as Asplenium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Aspleniaceae (Family)

Taractes
     Taractes Lowe, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Bramidae (Family)
 Taractes Kirsch, 1868 accepted as Cyriaspis Kirsch, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Taracticus
     Taracticus Loew, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Taracticus Berg, 1881 accepted as Taracticus Berg, 1881 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Dictyopharidae (Family)

Taramellia
     Taramellia Seguenza, 1903 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
 Taramellia Del Campana, 1903 † accepted as Taramelliceras Del Campana, 1904 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Oppeliidae (Family)

Tarandus
     Tarandus Dejean, 1833 accepted as Tarandus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Tarandus Megerle in Dejean, 1837 accepted as Ceruchus Macleay, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
     Tarandus Gray, 1825 accepted as Rangifer Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)
 Tarandus Billberg, 1828 accepted as Rangifer Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)

Tarantula
     Tarantula Koch in Hahn (Koch), 1847 accepted as Tarantula Koch in Hahn (Koch), 1847 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneae (awaiting allocation) (Family)
 Tarantula Fabricius, 1793 accepted as Phrynus Lamarck, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Amblypygi (Order) > Tarantulidae (Family)

Taravalia
 Taravalia V.P. Shuysky, 1973 † accepted as · Plantae (Kingdom) > Rhodophyta (Phylum) > Rhodophyta incertae sedis (Class) > Rhodophyceae (awaiting allocation) (Order) > Rhodophyceae (awaiting allocation) (Family)
 Taravalia E.L. Greene, 1906 accepted as Ptelea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Taraxacum
 Taraxacum Zinn, 1757 accepted as Taraxacum Zinn, 1757 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Taraxacum F.H. Wiggers, 1780 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Taraxis
     Taraxis B.G. Briggs & L.A.S. Johnson, 1998 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Restionaceae (Family)
 Taraxis Gistel, 1848 accepted as Cryptocephalus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Taraxis Leconte in Agassiz, 1850 accepted as Zeugophora Kunze, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Megalopodidae (Family)

Tardigradus
     Tardigradus Brisson, 1762 accepted as Tardigradus Brisson, 1762 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pilosa (Order) > Bradypodidae (Family)
 Tardigradus Boddaert, 1785 accepted as Loris Geoffroy, 1796 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Lorisidae (Family)

Tarentula
     Tarentula Sundevall, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Lycosidae (Family)
 Tarentula Agassiz, 1846 accepted as Tarentola Gray, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)
 Tarentula Leech, 1814 accepted as Phrynus Lamarck, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Amblypygi (Order) > Phrynidae (Family)

Targionia
     Targionia Linnaeus, 1753 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Targioniaceae (Family)
     Targionia Signoret, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
     Targionia Hesse, 1923 accepted as Targionia Hesse, 1923 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tarraga
 Tarraga Walker, 1869 accepted as Prophalangopsis Walker, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Prophalangopsidae (Family)
 Tarraga Walker, 1868 accepted as Monastria Saussure, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blaberidae (Family)

Tarsalia
     Tarsalia Morawitz, 1895 accepted as Tarsalia Morawitz, 1895 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Tarsalia Podany, 1968 † accepted as Gestriana Podany, 1971 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tarsiger
     Tarsiger Hodgson, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Muscicapidae (Family)
     Tarsiger Hodgson, 1844 accepted as Tarsiger Hodgson, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Muscicapidae (Family)

Tarsolarkus
     Tarsolarkus Thor, 1912 accepted as Tarsolarkus Thor, 1912 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Anystidae (Family)
 Tarsolarkus Zoological Record accepted as Tarsolarcus Thor, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Anystidae (Family)

Tarsopterus
     Tarsopterus Reinhardt & Lütken, 1862 accepted as Tarsopterus Reinhardt & Lütken, 1862 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
 Tarsopterus Clarke & Ruedemann, 1912 † accepted as Tarsopterella Størmer, 1951 † · Animalia (Kingdom) > Arthropoda (Phylum) > Merostomata (Class) > Eurypterida (Order) > Eurypterida (awaiting allocation) (Family)

Tarsostenus
     Tarsostenus Spinola, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)
 Tarsostenus Gemminger & Harold, 1868 accepted as Cymindis Latreille, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tartagalia
     Tartagalia Capurro, 1961 accepted as Tartagalia Capurro, 1961 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Tartagalia (A. Robyns) T. Meyer, 1968 accepted as Eriotheca H.W. Schott & Endlicher, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Tasmania
 Tasmania Jacquemart, 1965 accepted as Liapota · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Plectrotarsidae (Family)
 Tasmania Tonnoir & Malloch, 1926 accepted as Lauxania Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Lauxaniidae (Family)

Tasmaniella
 Tasmaniella Ancey, 1898 accepted as Beddomeia Petterd, 1889 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)
 Tasmaniella Chamberlin, 1920 accepted as Hanseniella Bagnall, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Symphyla (Class) > Cephalostigmata (Order) > Scutigerellidae (Family)

Tassia
     Tassia H. Sydow & P. Sydow, 1919 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Tassia Druce, 1910 accepted as Tascia Walker, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Zygaenidae (Family)

Tataromys
     Tataromys Matthew & Granger, 1923 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Ctenodactylidae (Family)
 Tataromys Chardin, 1926 † accepted as Tataromys Matthew & Granger, 1923 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Ctenodactylidae (Family)

Tatea
 Tatea B.C. Seemann, 1866 accepted as Bikkia Reinwardt, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Tatea F. von Mueller, 1883 accepted as Premna Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Tatea Tenison-Woods, 1879 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Tateidae (Family)

Tatulaspis
     Tatulaspis Ivshin, 1955 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)
     Tatulaspis Ivshin, 1956 † accepted as Tatulaspis Ivshin, 1956 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Tauria
     Tauria Dana, 1852 accepted as Tauria Dana, 1852 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Tauria accepted as Thauria Moore, 1893 & 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Taurichthys
 Taurichthys Cuvier, 1829 accepted as Heniochus Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Chaetodontidae (Family)
 Taurichthys Swainson, 1838 accepted as Heniochus Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Chaetodontidae (Family)

Tauripalpoides
     Tauripalpoides Pergazzano, 1975 accepted as Tauripalpoides Pergazzano, 1975 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Acari (awaiting allocation) (Order) > Acari (awaiting allocation) (Family)
 Tauripalpoides Pegazzano, 1975 accepted as Brevipalpus Donnadieu, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tenuipalpidae (Family)

Taurocephalus
     Taurocephalus J.B. Simpson, 1961 † accepted as Taurocephalus J.B. Simpson, 1961 † (unassessed) · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Taurocephalus Broom, 1928 † accepted as Taurocephalus Broom, 1928 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Tauroceras
     Tauroceras Hope, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Tauroceras Schafhäutl, 1854 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Goniatitida (Order) > Goniatitida (awaiting allocation) (Family)
 Tauroceras Toumansky, 1938 † accepted as Neopopanoceras Schindewolf, 1939 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Goniatitida (Order) > Popanoceratidae (Family)
 Tauroceras N.L. Britton & J.N. Rose, 1928 accepted as Acacia P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Taurocerus
     Taurocerus Amyot & Serville, 1843 accepted as Taurocerus Amyot & Serville, 1843 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Taurocerus Agassiz, 1846 accepted as Tauroceras Hope, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tauromenia
     Tauromenia Seguenza, 1885 † accepted as Tauromenia Seguenza, 1885 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Zeilleriidae (Family)
     Tauromenia Fucini, 1931 † accepted as Tauromenia Fucini, 1931 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Taurotragus
     Taurotragus Wagner, 1855 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Taurotragus Lacordaire, 1869 accepted as Taurotagus Lacordaire, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tauscheria
     Tauscheria Bryk, 1915 accepted as Tauscheria Bryk, 1915 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tauscheria F.E.L. Fischer ex A.P. de Candolle, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Tauschia
     Tauschia Schlechtendal, 1835 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Tauschia Preissler, 1828 accepted as Tauschia Preissler, 1828 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericales (awaiting allocation) (Family)
     Tauschia Haber, 1932 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)

Tavaresia
     Tavaresia Welwitsch, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
     Tavaresia Kieffer, 1901 accepted as Tavaresia Kieffer, 1901 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Tavaresiella
     Tavaresiella T. Majewski, 1980 · Fungi (Kingdom) > Ascomycota (Phylum) > Laboulbeniomycetes (Class) > Laboulbeniales (Order) > Laboulbeniaceae (Family)
     Tavaresiella Del Guercio, 1911 accepted as Tavaresiella Del Guercio, 1911 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Tavastia
     Tavastia Saether, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)
     Tavastia Tuiskunen, 1985 accepted as Tavastia Tuiskunen, 1985 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)

Taxicerus
     Taxicerus Dejean, 1836 accepted as Barycerus Schönherr, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Taxicerus Dejean, 1835 accepted as Barycerus Schönherr, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Taxigramma
     Taxigramma Macquart, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
     Taxigramma Perris, 1852 accepted as Taxigramma Perris, 1852 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Taxila
     Taxila Doubleday, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)
     Taxila Walker, 1855 accepted as Taxila Walker, 1855 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pericopidae (Family)
 Taxila Stål, 1870 accepted as Kallitaxila Kirkaldy, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)

Taxilejeunea
     Taxilejeunea (R. Spruce) V. Schiffner, 1893 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Porellales (Order) > Lejeuneaceae (Family)
 Taxilejeunea Stephani, 1889 accepted as Taxilejeunea Stephani, 1889 (nomen rejiciendum) · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Porellales (Order) > Lejeuneaceae (Family)

Taxites
     Taxites A.T. Brongniart, 1828 † accepted as Taxites A.T. Brongniart, 1828 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)
 Taxites H.R. Göppert, 1841 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)

Taxodiella
     Taxodiella Zalessky, 1939 † accepted as Taxodiella Zalessky, 1939 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)
     Taxodiella Kuznetzova in Schneider, Kuznetsova & Kats, 1957 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Bythocytheridae (Family)

Taxonus
     Taxonus Hartig, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)
     Taxonus Dahlbom, 1835 accepted as Taxonus Dahlbom, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)

Taxoxylon
     Taxoxylon Unger, 1842 † accepted as Taxoxylon Unger, 1842 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)
 Taxoxylon C. Houlbert in P. Lecointre, 1910 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinales (Order) > Taxaceae (Family)

Taxoxylum
 Taxoxylum Bronn, 1848 † accepted as Hyaenodon Laizer & Parieu, 1838 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Creodonta (Order) > Hyaenodontidae (Family)
 Taxoxylum Unger, 1842 † accepted as Taxoxylon Unger, 1842 † (original incorrect spelling) · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)

Taxus
     Taxus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinales (Order) > Taxaceae (Family)
 Taxus Geoffroy & Cuvier, 1795 accepted as Meles Brisson, 1762 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)

Tayloria
     Tayloria Malloch, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Tayloria Bourguignat, 1889 accepted as Tayloria Bourguignat, 1889 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tayloria W.J. Hooker, 1816 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Splachnales (Order) > Splachnaceae (Family)

Taylorius
     Taylorius Britton, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Taylorius Gordon, 2014 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Lepraliomorpha (Order) > Escharinidae (Family)

Tayos
     Tayos Reddell & Cokendolpher, 1995 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Schizomida (Order) > Hubbardiidae (Family)
     Tayos Reddell & Cokendolpher, 1995 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Schizomida (Order) > Hubbardiidae (Family)

Tayra
 Tayra Palmer, 1904 accepted as Eira Smith, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)
 Tayra Oken, 1816 accepted as Eira Smith, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)

Tchaiaspis
     Tchaiaspis Korobov, 1966 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)
     Tchaiaspis Korobov, 1966 † accepted as Tchaiaspis Korobov, 1966 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)

Tchihatchewia
     Tchihatchewia F.J.A.N. Unger in P. de Tchihatcheff, 1863 † accepted as Tchihatchewia F.J.A.N. Unger in P. de Tchihatcheff, 1863 † (unassessed) · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
 Tchihatchewia Boissier in Tchihatcheff, 1866 accepted as Neotchihatchewia S. Rauschert, 1982 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Teba
     Teba Grunin, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Oestridae (Family)
 Teba Turton, 1831 accepted as Theba Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)

Tebenna
     Tebenna Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Choreutidae (Family)
     Tebenna Billberg, 1820 accepted as Tebenna Billberg, 1820 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Glyphipterigidae (Family)

Teberdinia
     Teberdinia Shileyko, 1978 accepted as Teberdinia Shileyko, 1978 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Teberdinia Sogonov, W. Gams, Summerbell & Schroers, 2005 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Pseudeurotiaceae (Family)

Technitella
     Technitella de Folin, ? 1882 accepted as Technitella de Folin, ? 1882 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Technitella Norman, 1878 · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Saccamminidae (Family)

Technites
     Technites Schönherr, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Technites Schmiedeknecht, 1909 accepted as Trechnites Thomson, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)

Technophorus
     Technophorus Miller, 1889 † · Animalia (Kingdom) > Mollusca (Phylum) > Rostroconchia (Class) > Ribeirioida (Order) > Ribeiriidae (Family)
     Technophorus Branson, 1909 accepted as Technophorus Branson, 1909 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Tecmessa
     Tecmessa Burmeister, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
 Tecmessa Pickard-Cambridge, 1882 accepted as Chthonos Coddington, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiosomatidae (Family)

Tectacingulum
     Tectacingulum Huys, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Porcellidiidae (Family)
     Tectacingulum Harris V.A., 1994 accepted as Tectacingulum Huys, 2009 (genus with no type designation) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Porcellidiidae (Family)

Tectaria
     Tectaria Cavanilles, 1799 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Tectariaceae (Family)
 Tectaria Guérin-Ménéville, 1829-43 accepted as Tectarius Valenciennes, 1832 (misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Littorinidae (Family)

Tecton
     Tecton Chevrolat, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tecton Gistl, 1848 accepted as Walckenaeria Blackwall, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)

Tectoptinus
 Tectoptinus Iablokoff-Khnzorian & Karapetian, 1991 accepted as Ptinus Linnaeus, 1767 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
 Tectoptinus Iablokoff-Khnzorian & Karapetian, 1986 accepted as Ptinus Linnaeus, 1767 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)

Tectosternum
     Tectosternum Balfour-Brown, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)
 Tectosternum Balfour-Browne, 1950 accepted as Tectosternum Balfour-Brown, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)

Tectura
     Tectura Gray, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Patellogastropoda (Order) > Lottiidae (Family)
     Tectura Audouin & Edwards, 1830 accepted as Tectura Audouin & Edwards, 1830 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tecturella
 Tecturella Carpenter, 1860 accepted as Lottia Gray, 1833 (junior homonym of Tecturella Stimpson, 1854) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Patellogastropoda (Order) > Lottiidae (Family)
 Tecturella Stimpson, 1854 accepted as Flabelligera Sars, 1829 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Flabelligerida (Order) > Flabelligeridae (Family)

Teganium
     Teganium Rauff, 1894 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Reticulosa (Order) > Reticulosa (awaiting allocation) (Family)
 Teganium Schmidel, 1763 accepted as Nolana Linnaeus f., 1762 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)

Tegea
     Tegea Stål, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)
     Tegea Pranskevichius, 1973 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Primitiidae (Family)

Tegenaria
     Tegenaria Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Agelenidae (Family)
 Tegenaria Walckenaer, 1805 accepted as Tegenaria Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Agelenidae (Family)

Tegeocranus
     Tegeocranus Berlese, 1890 accepted as Tegeocranus Berlese, 1890 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Tegeocranus Nicolet, 1855 accepted as Cepheus Koch in Panzer, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Tectocepheidae (Family)

Tegulifera
     Tegulifera Saalmüller, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Tegulifera Schellwien, 1898 † accepted as Teguliferina Schuchert & Le Vene, 1929 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Cyclacanthariidae (Family)

Tegulithyris
     Tegulithyris Buckman, 1918 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Tegulithyrididae (Family)
     Tegulithyris Buckman, 1915 † accepted as Tegulithyris Buckman, 1918 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Tegulithyrididae (Family)

Tehuana
     Tehuana J.L. Panero & J.L. Villaseñor, 1997 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Tehuana Rodríguez & Smalley in Smalley, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pseudothelphusidae (Family)

Teichertina
     Teichertina Veevers, 1959 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Dicoelosiidae (Family)
 Teichertina Palmieri, 1994 † accepted as Palmierina Özdikmen, 2009 † (junior homonym) · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Crithioninidae (Family)

Teilhardia
     Teilhardia Seward, 1913 † accepted as Teilhardia Seward, 1913 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)
     Teilhardia Matthew & Granger, 1926 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Rhinocerotidae (Family)

Teinodactyla
     Teinodactyla Dejean, 1835 accepted as Teinodactyla Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Teinodactyla Faldermann, 1837 accepted as Teinodactyla Faldermann, 1837 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Teinodactyla Chevrolat, 1837 accepted as Longitarsus Berthold in Latreille, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Teinotus
     Teinotus Brancsik, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Teinotus Schepman, 1908 accepted as Teinotus Schepman, 1908 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Haliotidae (Family)

Tejeraia
     Tejeraia Añez, 1982 accepted as Tejeraia Añez, 1982 (unassessed) · Protozoa (Kingdom) > Euglenozoa (Phylum) > Kinetoplastea (Class) > Trypanosomatida (Order) > Trypanosomatidae (Family)
     Tejeraia Diaz-Ungria, 1964 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Spirocercidae (Family)

Telamonia
     Telamonia Thorell, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Telamonia (E.M. Fries) Wünsche, 1877 accepted as Cortinarius (Persoon) S.F. Gray, 1821 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Cortinariaceae (Family)

Telara
     Telara Günther, 1868 accepted as Telara Günther, 1868 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Telara Valenciennes in Cuvier & Valenciennes, 1848 accepted as Setipinna Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Clupeiformes (Order) > Engraulidae (Family)

Telea
     Telea Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
     Telea Stephens, 1834 accepted as Telea Stephens, 1834 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Yponomeutidae (Family)

Telebasis
     Telebasis Selys, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Coenagrionidae (Family)
 Telebasis Selys, 1877 accepted as Teinobasis Kirby, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Cordulegasteridae (Family)

Telebolus
     Telebolus Marshall in André, 1888 accepted as Telebolus Marshall in André, 1888 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Telebolus Lindau, 1905 accepted as Thelebolus Tode, 1790 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Thelebolales (Order) > Thelebolaceae (Family)

Telegonus
 Telegonus Hübner, 1819 accepted as Astraptes Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
 Telegonus Koch, 1837 accepted as Thestylus Simon, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Bothriuridae (Family)

Teleia
     Teleia Heinemann, 1870 accepted as Teleia Heinemann, 1870 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Teleia Fieber, 1844 accepted as Teleia Fieber, 1844 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tingidae (Family)
 Teleia Hübner, 1825 accepted as Teleiodes Sattler, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)

Telekia
     Telekia Sohn & Morris, 1963 † accepted as Telekia Sohn & Morris, 1963 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Telekia J.C.G. Baumgarten, 1816 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Telembryon
 Telembryon Iredale, 1939 accepted as Bothriembryon Pilsbry, 1894 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)
     Telembryon Iredale, 1939 accepted as Bothriembryon Pilsbry, 1894 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)

Telemus
     Telemus Reinhard, 1967 accepted as Telemus Reinhard, 1967 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Telemus Pascoe, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Telenomus
     Telenomus Haliday, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)
     Telenomus Curtis, 1829-30 accepted as Telenomus Haliday, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)

Teleogramma
     Teleogramma Meyrick, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Yponomeutidae (Family)
     Teleogramma Boulenger, 1899 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cichlidae (Family)

Teleorhinus
     Teleorhinus Uhler, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
     Teleorhinus Osborn, 1904 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Crocodylia (Order) > Teleosauridae (Family)

Teleosaurus
     Teleosaurus Geoffroy, 1825 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Crocodylia (Order) > Teleosauridae (Family)
     Teleosaurus Kner, 1867 † accepted as Teleosaurus Kner, 1867 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Telephium
 Telephium J. Hill, 1756 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)
     Telephium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Telephoroides
     Telephoroides Laporte, 1833 accepted as Telephoroides Laporte, 1833 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Telephoroides Motschulsky, 1853 accepted as Photuris Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lampyridae (Family)

Telephorus
     Telephorus Tilesius, 1805 accepted as Telephorus Tilesius, 1805 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Telephorus Schaeffer, 1766 accepted as Cantharis Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cantharidae (Family)

Telephus
     Telephus Barrande, 1852 † accepted as Telephus Barrande, 1852 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Telephinidae (Family)
     Telephus Barrande, 1850 † accepted as Telephus Barrande, 1850 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Telephinidae (Family)
 Telephus Gistl, 1848 accepted as Centrinus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Telephus Quatrefages, 1866 accepted as Thelepus Leuckart, 1849 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)

Telesilla
     Telesilla Reichenbach, 1853 accepted as Telesilla Reichenbach, 1853 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Telesilla Herrich-Schäffer, 1856 accepted as Eucarta Lederer, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Telesto
     Telesto Rafinesque, 1814 accepted as Telesto Rafinesque, 1814 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Telesto Lamouroux, 1812 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Alcyonacea (Order) > Clavulariidae (Family)
 Telesto Boisduval in d'Urville, 1832 accepted as Toxidia Mabille, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)

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

Teleutemnesta
     Teleutemnesta Holmberg, 1887 accepted as Teleutemnesta Holmberg, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Teleutemnesta Holmberg, 1904 accepted as Teleutemnesta Holmberg, 1904 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Teleutospora
     Teleutospora B. Renault, 1894 † accepted as Teleutospora B. Renault, 1894 † (unassessed) · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > Fungi (awaiting allocation) (Class) > Fungi (awaiting allocation) (Order) > Fungi (awaiting allocation) (Family)
 Teleutospora J.C. Arthur & G.R. Bisby, 1921 accepted as Uromyces (Link) Unger, 1833 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Teliophleps
 Teliophleps Enderlein, 1942 accepted as Campylocera Macquart, 1843 (junior homonym and synonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Pyrgotidae (Family)
 Teliophleps Hering, 1940 accepted as Adapsilia Waga, 1842 (junior subjective synonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Pyrgotidae (Family)

Telleas
 Telleas Gebien, 1911 accepted as Telleas Gebien, 1911 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Telleas Fairmaire, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tellena
 Tellena Lacordaire, 1848 accepted as Helioscopa Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Tellena Fleming, 1822 accepted as Tellina Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Tellinidae (Family)

Tellinarius
 Tellinarius Salisbury, 1934 accepted as Tellinella Mörch, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Tellinidae (Family)
 Tellinarius Froriep in Duméril, 1806 accepted as Tellina Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Tellinidae (Family)

Tellinites
 Tellinites Gesner, 1758 † accepted as (unavailable name (suppressed work)) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Aptychi (awaiting allocation) (Family)
     Tellinites Schlotheim, 1813 † accepted as · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Aptychi (awaiting allocation) (Family)

Tellinomya
     Tellinomya Hall, 1847 † accepted as Tellinomya Hall, 1847 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tellinomya Agassiz, 1846 accepted as Tellimya T. Brown, 1827 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Montacutidae (Family)

Telmatettix
     Telmatettix Bolivar, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)
     Telmatettix Hancock, 1900 accepted as Telmatettix Hancock, 1900 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Telmatornis
     Telmatornis Marsh, 1870 † · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Charadriiformes (awaiting allocation) (Family)
     Telmatornis Marsh, 1870 † accepted as Telmatornis Marsh, 1870 † · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Charadriiformes (awaiting allocation) (Family)

Telmessus
     Telmessus White, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Cheiragonidae (Family)
 Telmessus Stål, 1866 accepted as Telmessus Stål, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Nogodinidae (Family)

Telorchis
     Telorchis Looss, 1899 accepted as Telorchis Looss, 1899 (unassessed) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
     Telorchis Lühe, 1899 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Telorchiidae (Family)

Telostoma
 Telostoma Graff, 1882 accepted as Telostoma Graff, 1882 (Misspelling) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Turbellaria (awaiting allocation) (Order) > Turbellaria (awaiting allocation) (Family)
     Telostoma Örsted, 1843 accepted as Telostoma Örsted, 1843 (unassessed) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Turbellaria (awaiting allocation) (Order) > Turbellaria (awaiting allocation) (Family)
     Telostoma Grandori, 1935 accepted as Telostoma Grandori, 1935 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Telostoma Corliss, 1960 accepted as Telostomatella Foissner, 1985 · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)

Telothrips
     Telothrips Priesner, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Thripidae (Family)
     Telothrips Kudo & Ananthakrishnan, 1974 † accepted as Telothrips Kudo & Ananthakrishnan, 1974 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)

Telphusa
     Telphusa Chambers, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Telphusa Latreille, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Potamidae (Family)

Telsphus
 Telsphus Barrande, 1852 † accepted as Telsphus Barrande, 1852 † (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Telephinidae (Family)
     Telsphus Barrande, 1850 † accepted as Telsphus Barrande, 1850 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Telephinidae (Family)

Tembotherium
     Tembotherium Ameghino, 1887 † accepted as Tembotherium Ameghino, 1887 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Tembotherium Moreno, 1882 accepted as Tembotherium Moreno, 1882 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Tembrockia
     Tembrockia Glibert & van de Poel, 1967 accepted as Tembrockia Glibert & van de Poel, 1967 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Tembrockia Grundel, 1980 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)

Temburongia
     Temburongia Mahunka, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Synichotritiidae (Family)
     Temburongia S. Dransfield & K.M. Wong, 1996 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Temelucha
     Temelucha Förster, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Temelucha Meyrick, 1909 accepted as Temeluchella Fletcher, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Epermeniidae (Family)

Temeritas
     Temeritas Delamare-Deboutteville & Massoud, 1963 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Symphypleona (Order) > Sminthuridae (Family)
     Temeritas Richards, 1968 accepted as Temeritas Richards, 1968 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > (Order) > Collembola (awaiting allocation) (Family)

Temesa
     Temesa Melichar, 1903 accepted as Temesa Melichar, 1903 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Derbidae (Family)
     Temesa Adams, 1855 accepted as Temesa Adams, 1855 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)

Temesia
     Temesia Robineau-Desvoidy, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Temesia Leach, 1852 accepted as Temesia Leach, 1852 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Littorinidae (Family)

Temia
     Temia Oken, 1817 accepted as Temia Oken, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Temia Schinz in Cuvier, 1821 accepted as Temia Schinz in Cuvier, 1821 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Temnaspis
     Temnaspis Lacordaire, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Megalopodidae (Family)
     Temnaspis Fischer, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Pedunculata (Order) > Poecilasmatidae (Family)

Temnaster
     Temnaster Lambert, 1912 † accepted as Temnaster Lambert, 1912 † (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Echinoidea (awaiting allocation) (Order) > Echinoidea (awaiting allocation) (Family)
 Temnaster Verrill, 1894 accepted as Pteraster Müller & Troschel, 1842 (Synonym according to Fisher (1911)) · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Velatida (Order) > Pterasteridae (Family)

Temnochila
     Temnochila Erichson in Germar, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)
     Temnochila Heckel in Russegger, 1849 accepted as Temnochila Heckel in Russegger, 1849 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Temnochilus
 Temnochilus Agassiz, 1845 † accepted as Temnochilus Agassiz, 1845 † (Unjustified (?) emendation) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Nautilida (Order) > Koninckioceratidae (Family)
 Temnochilus Laferté-Sénectère, 1851 accepted as Temnochila Erichson in Germar, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)

Temnocidaris
     Temnocidaris Cotteau, 1863 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Cidaroida (Order) > Cidaridae (Family)
     Temnocidaris Agassiz, 1863 accepted as Temnocidaris Agassiz, 1863 (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Temnodiscus
     Temnodiscus Lambert & Thiéry, 1914 † accepted as Temnodiscus Lambert & Thiéry, 1914 † (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Holectypoida (Order) > Coenholectypidae (Family)
     Temnodiscus Koken, 1896 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca incertae sedis (Class) > Gastropoda/Monoplacophora incertae sedis (Order) > Bellerophontidae (Family)

Temnolaemus
 Temnolaemus Gemminger & Harold, 1872 accepted as Temnolaimus Chevrolat, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Temnolaemus Agassiz, 1846 accepted as Temnolaimus Chevrolat, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Temnopsis
     Temnopsis Signoret, 1879 accepted as Temnopsis Signoret, 1879 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Temnopsis accepted as Temnopis Audinet-Serville, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Temnopteryx
     Temnopteryx J.D. Hooker in Bentham & J.D. Hooker, 1873 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Temnopteryx Brunner von Wattenwyl, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blattellidae (Family)

Temnorhinus
     Temnorhinus Chevrolat, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Temnorhinus Faust, 1904 accepted as Conorhynchus Motschoulsky, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Temnorhynchus
 Temnorhynchus Smith, 1849 accepted as Prosymna Gray, 1849 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Temnorhynchus Hope, 1837 accepted as Temnorrhynchus Hope, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Temnorrhynchus
     Temnorrhynchus Hope, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Temnorrhynchus Alluaud in Grandidier, 1900 accepted as Temnorrhynchus Hope, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Temnostigma
     Temnostigma Handlirsch, 1939 † accepted as Temnostigma Handlirsch, 1939 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
     Temnostigma Handlirsch, 1939 † accepted as Temnostigma Handlirsch, 1939 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)

Temnostoma
     Temnostoma Lepeletier & Serville, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
     Temnostoma Guérin-Ménéville, 1838 accepted as Temnostoma Guérin-Ménéville, 1838 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lycidae (Family)
     Temnostoma Blanchard, 1850 accepted as Temnostoma Blanchard, 1850 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Temnurus
     Temnurus Lesson, 1830-1831 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Corvidae (Family)
     Temnurus Swainson, 1837 accepted as Temnurus Swainson, 1837 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Coraciiformes (awaiting allocation) (Family)
 Temnurus Resser & Endo in Kobayashi, 1935 † accepted as Temnurus Resser & Endo in Kobayashi, 1935 † (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Temora
     Temora Baird, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Temoridae (Family)
     Temora Kirkaldy, 1901 accepted as Temora Kirkaldy, 1901 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)

Temperea
     Temperea Bougon, 1896 accepted as Temperea Bougon, 1896 (unassessed) · Plantae (Kingdom) > Charophyta (Phylum) > Conjugatophyceae (Class) > Zygnematales (Order) > Desmidiaceae (Family)
 Temperea Forti, 1912 accepted as Aulacodiscus C.G. Ehrenberg, 1844 (junior homonym and synonym) · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Coscinodiscales (Order) > Aulacodiscaceae (Family)
 Temperea M. Peragallo in Tempère & H. Peragallo, 1908 accepted as (junior homonym) · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Bacillariophyceae (awaiting allocation) (Order) > Bacillariophyceae (awaiting allocation) (Family)

Templemania
     Templemania Busck, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
 Templemania Busck, 1940 accepted as Templemania Busck, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Templetonia
     Templetonia R. Brown ex W.T. Aiton, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Templetonia Lubbock, 1862 accepted as Templetonia Lubbock, 1862 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > (Order) > Collembola (awaiting allocation) (Family)

Tenaris
     Tenaris Hübner, 1819 accepted as Tenaris Hübner, 1819 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Tenaris E.H.F. Meyer, 1838 accepted as Brachystelma R. Brown, 1822 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Tenebroides
     Tenebroides Piller & Mitterpacher, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)
 Tenebroides Scopoli, 1772 accepted as Tenebroides Piller & Mitterpacher, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)

Tenerella
     Tenerella Liang, 1990 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Tenerellidae (Family)
     Tenerella Redtenbacher in Brunner & Redtenbacher, 1906 accepted as Tenerella Redtenbacher in Brunner & Redtenbacher, 1906 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Pseudophasmatidae (Family)

Teneridrilus
     Teneridrilus Holmquist, 1985 · Animalia (Kingdom) > Annelida (Phylum) > Oligochaeta (Class) > Haplotaxida (Order) > Naididae (Family)
     Teneridrilus Eisen, 1879 · Animalia (Kingdom) > Annelida (Phylum) > Oligochaeta (Class) > Haplotaxida (Order) > Naididae (Family)

Tenguella
     Tenguella Matsumura, 1909 accepted as Tenguella Matsumura, 1909 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Dictyopharidae (Family)
     Tenguella Arakawa, 1965 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Tenisia
     Tenisia Martynova, 1970 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Ulbospiriferidae (Family)
     Tenisia Reshetov, Spassov & Baishashov, 1993 † accepted as Tenisia Reshetov, Spassov & Baishashov, 1993 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Hyracodontidae (Family)

Tenka
     Tenka Boucek, 1988 accepted as Tenka Boucek, 1988 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Agaonidae (Family)
     Tenka Barrande, 1881 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Antipleuroida (Order) > Stolidotidae (Family)

Tennentia
     Tennentia Quadras & Möllendorff, 1894 accepted as Tennentia Quadras & Möllendorff, 1894 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tennentia Humbert, 1862 accepted as Tennentia Humbert, 1862 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tenorea
 Tenorea Rafinesque, 1814 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Tenorea Colla, 1824 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Tenorea Gasparrini, 1844 accepted as Ficus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Moraceae (Family)
 Tenorea Tornabene, 1848-1849(?) accepted as Teloschistes Norman, 1853 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Teloschistaceae (Family)

Tenoria
     Tenoria K.P.J. Sprengel, 1813 accepted as Tenoria K.P.J. Sprengel, 1813 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Tenoria Dehnhardt & Giordano ex Dehnhardt, 1832 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Tenotus
     Tenotus Rafinesque, 1815 accepted as Tenotus Rafinesque, 1815 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Tenotus Rafinesque, 1817 accepted as Tenotus Rafinesque, 1817 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Tenrecus
 Tenrecus Fischer, 1808 accepted as Tenrec Lacepède, 1799 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Insectivora (Order) > Tenrecidae (Family)
 Tenrecus Desmarest, 1820 accepted as Tenrec Lacepède, 1799 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Insectivora (Order) > Tenrecidae (Family)

Tentacularia
     Tentacularia Bosc, 1797 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Trypanorhyncha (Order) > Tentaculariidae (Family)
 Tentacularia Zeder in Goeze, 1800 accepted as Setaria Viborg, 1795 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Onchocercidae (Family)

Tentyria
     Tentyria Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Tentyria Brullé, 1832 accepted as Dailognatha Eschscholtz, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tenua
     Tenua Eisenack, 1958 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Areoligeraceae (Family)
 Tenua R.J. Davey, 1978 † accepted as Sentusidinium W.A.S. Sarjeant & L.E. Stover, 1978 † (junior homonym) · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacaceae (Family)

Tenuicrus
     Tenuicrus Harrison & Walker, 1976 † accepted as Tenuicrus Harrison & Walker, 1976 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Charadriiformes (awaiting allocation) (Family)
 Tenuicrus Womersley, 1940 accepted as Petrobia Murray, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tetranychidae (Family)

Tenuis
     Tenuis Barrande, 1881 accepted as Tenuis Barrande, 1881 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tenuis Wagner, 1910 accepted as Tenuis Wagner, 1910 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Helicinidae (Family)

Tephis
     Tephis Adanson, 1763 accepted as Tephis Adanson, 1763 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Polygonaceae (Family)
 Tephis Rafinesque, 1837 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Polygonaceae (Family)

Tephrites
 Tephrites Paetel, 1875 accepted as Tephrites Paetel, 1875 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tephrites Gray, 1832 accepted as Tephritis Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Tephritis
     Tephritis Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
     Tephritis Herrmannsen, 1849 accepted as Tephritis Herrmannsen, 1849 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tephritis Günther, 1862 accepted as Tephrinectes Günther, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Paralichthyidae (Family)

Tephrosia
     Tephrosia Persoon, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Tephrosia Boisduval, 1840 accepted as Ectropis Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Tephrostola
 Tephrostola Bezzi, 1913 accepted as Platensina Enderlein, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
 Tephrostola Houlbert in Oberthuer, 1918 accepted as Frostetola Oiticica Filho, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Castniidae (Family)

Tepperia
     Tepperia Lea, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tepperia Kirby, 1910 accepted as Eppertia Shaw, 1925 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blattidae (Family)

Terambus
     Terambus Rafinesque, 1815 accepted as Terambus Rafinesque, 1815 · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Terambus Gistl, 1847 accepted as Terambus Gistl, 1847 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Terambus Champion, 1903 accepted as Teridates Champion, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Terana
     Terana Adanson, 1763 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Phanerochaetaceae (Family)
     Terana La Llave, 1884 accepted as Terana La Llave, 1884 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Terania
     Terania Pirán, 1963 accepted as Terania Pirán, 1963 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Terania Raven, 1980 accepted as Teranodes Raven, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Hexathelidae (Family)
 Terania Berland, 1832 accepted as Leucophyllum Bonpland in Humboldt & Bonpland, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Teras
     Teras Hartig in Germar, 1840 accepted as Teras Hartig in Germar, 1840 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Teras Treitschke, 1829 accepted as Teras Treitschke, 1829 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Teras Bernhauer, 1905 accepted as Teiros Eichelbaum, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Teratichthys
     Teratichthys König, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Perciformes (awaiting allocation) (Family)
 Teratichthys Giglioli, 1882 accepted as Polyacanthonotus Bleeker, 1874 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Notacanthiformes (Order) > Notacanthidae (Family)

Teratodes
     Teratodes Koch, 1838 accepted as Teratodes Koch, 1838 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Filistatidae (Family)
     Teratodes Brullé, ? 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Teratodes Guenée, 1845 accepted as Teratodes Guenée, 1845 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Teratomorpha
     Teratomorpha Turner, 1896 accepted as Teratomorpha Turner, 1896 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Teratomorpha Nicéville, 1896 accepted as Teratomorpha Nicéville, 1896 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Teratomorpha Walsingham, 1912 accepted as Trycherodes Meyrick, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)

Teratoneura
     Teratoneura Dudgeon, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
     Teratoneura Poppius, 1910 accepted as Teratoneura Poppius, 1910 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Teratophyllum
     Teratophyllum Mettenius ex Kuhn, 1870 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Dryopteridaceae (Family)
     Teratophyllum Lang, Smith & Thomas, 1940 † accepted as Teratophyllum Lang, Smith & Thomas, 1940 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Cystiphyllida (Order) > Goniophyllidae (Family)

Teratopus
     Teratopus Loew, 1857 accepted as Teratopus Loew, 1857 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Teratopus Agassiz, 1846 accepted as Terapopus Schönherr, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Terebella
     Terebella Linnaeus, 1767 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)
 Terebella [auctt.] accepted as Nicolea Malmgren, 1866 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)

Terebellopsis
     Terebellopsis Leymerie, 1846 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Terebellopsis Howell, 1953 † accepted as Terebellopsis Howell, 1953 † (unassessed) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellida (awaiting allocation) (Family)
     Terebellopsis Leymerie, 1844 † accepted as Terebellopsis Leymerie, 1846 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)

Terebellum
     Terebellum Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Seraphsidae (Family)
     Terebellum Gray, 1847 accepted as Terebellum Gray, 1847 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Terebellum Montfort, 1810 accepted as Terebellum Montfort, 1810 (unassessed) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Terebellum Lamarck, 1798 accepted as Terebellum Lamarck, 1798 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Seraphsidae (Family)

Terebinthus
 Terebinthus P. Browne, 1756 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Burseraceae (Family)
 Terebinthus P. Miller, 1754 accepted as Pistacia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)

Terebraria
 Terebraria Greville, 1864 † accepted as · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Bacillariophyceae (awaiting allocation) (Order) > Bacillariophyceae (awaiting allocation) (Family)
     Terebraria Rafinesque, 1831 accepted as Terebraria Rafinesque, 1831 (unassessed) · Animalia (Kingdom) > Animalia (awaiting allocation) (Phylum) > Animalia (awaiting allocation) (Class) > Animalia (awaiting allocation) (Order) > Animalia (awaiting allocation) (Family)
 Terebraria O. Kuntze in Post & O. Kuntze, 1903 accepted as Neolaugeria D.H. Nicolson, 1979 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Terebraria Rafinesque, 1815 accepted as Terebra Bruguière, 1789 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Terebridae (Family)

Terebratella
     Terebratella d'Orbigny, 1847 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratellidae (Family)
 Terebratella Shafee & Rizvi, 1984 accepted as Aprostocetus Westwood, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)

Terebratulites
     Terebratulites Martini, 1769 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Plectorthidae (Family)
     Terebratulites Blumenbach, 1803 accepted as Terebratulites Blumenbach, 1803 (unassessed) · Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Terebratulites Huepsch, 1781 accepted as Terebratulites Huepsch, 1781 (unassessed) · Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Terebratulites Schlotheim, 1813 accepted as Terebratulites Schlotheim, 1813 (unassessed) · Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)

Terebrella
     Terebrella Maltzan, 1886 accepted as Terebrella Maltzan, 1886 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Terebrella Packard, 1867 accepted as Terebella Linnaeus, 1767 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)
 Terebrella Palmer, 1937 † accepted as Mirula Palmer, 1942 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Terebridae (Family)
 Terebrella Andreae, 1887 † accepted as Diatrypesis Tomlin, 1929 † (invalid: junior homonym of Terebrella Maltzan, 1887; Trypetes Tomlin, 1929, is a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Metacerithiidae (Family)

Terebrina
 Terebrina Rafinesque, 1815 accepted as Terebellum Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Strombidae (Family)
 Terebrina Bartsch, 1923 accepted as Terebra Bruguière, 1789 (Invalid: junior homonym of Terebrina Rafinesque, 1815; Dimidacus is a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Terebridae (Family)

Teredo
 Teredo Hübner, 1809-1813 accepted as Teredo Hübner, 1809-1813 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Teredo Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Teredinidae (Family)
     Teredo (Forskål, 1775) accepted as Teredo (Forskål, 1775) (indeterminable?) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)

Teredolites
     Teredolites Leymerie, 1841 † accepted as Teredolites Leymerie, 1841 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Teredolites Leymerie, 1842 † accepted as Teredolites Leymerie, 1842 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Teredus
     Teredus Shuckard, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bothrideridae (Family)
     Teredus Dejean, 1835 accepted as Teredus Shuckard, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bothrideridae (Family)

Teres
     Teres Böttger, 1878 accepted as Teres Böttger, 1878 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Teres Bucquoy, Dautzenberg & Dollfus, 1883 accepted as Teretia Norman, 1888 (Invalid: junior homonym of Teres Boettger, 1878; Teretia is an emendation used as a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Raphitomidae (Family)
 Teres Harris, 1829 accepted as Agrilus Curtis, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Teretia
     Teretia Norman, 1888 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Raphitomidae (Family)
     Teretia Monterosato, 1890 accepted as Teretia Monterosato, 1890 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Raphitomidae (Family)

Tereus
     Tereus Billberg, 1820 accepted as Tereus Billberg, 1820 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Tereus Gray, 1867 accepted as Myxilla Schmidt, 1862 (junior synonym) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Myxillidae (Family)

Tergipes
     Tergipes Cuvier, 1805 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tergipedidae (Family)
     Tergipes Risso, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tergumella
     Tergumella Chugaeva, Rozman & Ivanova, 1964 † accepted as Tergumella Chugaeva, Rozman & Ivanova, 1964 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Tergumella Kanygin, 1964 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Terina
     Terina Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Terina Hübner, 1823 accepted as Terina Hübner, 1823 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Terina Agassiz, 1838 accepted as Terina Agassiz, 1838 (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Termierella
     Termierella Hupé, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Protolenidae (Family)
     Termierella Hupé, 1952 † accepted as Termierella Hupé, 1952 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Protolenidae (Family)

Termitacarus
 Termitacarus Kurosa, 1994 accepted as Nipponophorus Kurosa, 2001 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Pygmephoridae (Family)
 Termitacarus Trägårdh, 1906 accepted as Urozercon Berlese & Leonardi, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Laelapidae (Family)

Termitella
     Termitella Cameron, 1939 accepted as Termitella Cameron, 1939 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Termitella Wasmann, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Termitidium
     Termitidium Westwood, 1854 † accepted as Termitidium Westwood, 1854 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Isoptera (Order) > Isoptera (awaiting allocation) (Family)
     Termitidium Goldenberg, 1877 † accepted as Termitidium Goldenberg, 1877 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Isoptera (Order) > Isoptera (awaiting allocation) (Family)

Termitobia
     Termitobia Wasmann, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Termitobia Fric, 1890 accepted as Termitobia Wasmann, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Termitophilus
     Termitophilus Britton, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Termitophilus Pasteels & Jacobson, 1984 accepted as Nasutiptochus Jacobson & Pasteels, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Termitopteryx
     Termitopteryx Verhoeff, 1940 accepted as Termitopteryx Verhoeff, 1940 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Pyrgodesmidae (Family)
 Termitopteryx Dybas, 1955 accepted as Dybasina Lundgren, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptiliidae (Family)

Termitosphaera
     Termitosphaera Wasmann, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Phoridae (Family)
     Termitosphaera Ciferri, 1935 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Lyophyllaceae (Family)

Termitotrox
     Termitotrox Wasmann, 1918 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Termitotrox Reichensperger, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Termophila
     Termophila Grassi, 1887 accepted as Thermobia Bergroth, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Zygentoma (Order) > Lepismatidae (Family)
 Termophila Lea, 1910 accepted as Hetairotermes Cameron, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Terna
     Terna Walker, 1864 accepted as Terna Walker, 1864 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Terna Wood, 1835 accepted as Sterna Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Sternidae (Family)

Terpsichore
     Terpsichore A.R. Smith, 1993 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Polypodiaceae (Family)
 Terpsichore Kinberg, 1866 accepted as Ophelina Örsted, 1843 (subjective synonym) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Opheliida (Order) > Opheliidae (Family)
 Terpsichore Gray, 1846 accepted as Terpsiphone Gloger, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Corvidae (Family)

Terquemia
     Terquemia Tate in Woodward, 1868 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pterioida (awaiting allocation) (Family)
     Terquemia van Veen, 1932 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda incertae sedis (Family)
 Terquemia van Bellen, 1946 † accepted as Boldia van Bellen, 1946 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Gavelinellidae (Family)

Terrakea
     Terrakea Booker, 1931 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Linoproductidae (Family)
     Terrakea Waterhouse, 1969 † accepted as Terrakea Waterhouse, 1969 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Articulata (awaiting allocation) (Family)

Terranova
     Terranova Leiper & Atkinson, 1914 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Anisakidae (Family)
 Terranova † accepted as Terranovia Maksimova, 1977 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Lichida (Order) > Lichida (awaiting allocation) (Family)

Tersella
     Tersella J. Morellet in J. Morellet & M. Ters, 1952 † accepted as Tersella J. Morellet in J. Morellet & M. Ters, 1952 † (unassessed) · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Dasycladaceae (Family)
     Tersella Petrunina, 1973 † accepted as Tersella Petrunina, 1973 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Terua
     Terua Dall, Bartsch & Rehder, 1938 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Mytiloida (Order) > Mytilidae (Family)
 Terua Standley & Hermann, 1949 accepted as Lonchocarpus Kunth in Humboldt, Bonpland & Kunth, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Teruella
     Teruella Mongin, 1966 † accepted as Teruella Mongin, 1966 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Teruella Mongin, 1965 † accepted as Teruella Mongin, 1965 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Teschia
     Teschia C. Reid & E.M. Reid, 1915 † accepted as Teschia C. Reid & E.M. Reid, 1915 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)
     Teschia Števčić, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Brachyura incertae sedis (Family)

Tessaromma
     Tessaromma Newman, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tessaromma Boheman, 1858 accepted as Blapstinus Sturm, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tessarops
     Tessarops Norman, 1868 accepted as Tessarops Norman, 1868 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Tessarops Rafinesque, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Lycosidae (Family)

Tesselata
     Tesselata Jousseaume, 1884 accepted as Tesselata Jousseaume, 1884 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Cypraeidae (Family)
     Tesselata Wagner, 1897 accepted as Tesselata Wagner, 1897 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Cyclophoridae (Family)

Tessella
     Tessella Breyer, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Arctiidae (Family)
 Tessella C.G. Ehrenberg, 1836 accepted as Rhabdonema Kützing, 1844 (nomen rejiciendum) · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Rhabdonematales (Order) > Rhabdonemataceae (Family)
 Tessella G. Playfair, 1915 accepted as Neotessella B.Y. Jo, J.I. Kim, W. Shin, P. Škaloud & P. Siver, 2016 (junior homonym) · Chromista (Kingdom) > Ochrophyta (Phylum) > Chrysophyceae (Class) > Synurales (Order) > Neotessellaceae (Family)

Tessellaria
     Tessellaria (W.P. Schimper & A. Mougeot) C.E.I. von Eichwald, 1852 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Lepidodendrales (Order) > Tessellariaceae (Family)
 Tessellaria Playfair, 1918 accepted as Neotessella B.Y. Jo, J.I. Kim, W. Shin, P. Škaloud & P. Siver, 2016 (junior homonym) · Chromista (Kingdom) > Ochrophyta (Phylum) > Chrysophyceae (Class) > Synurales (Order) > Neotessellaceae (Family)

Tessellina
     Tessellina Dumortier, 1822 accepted as Tessellina Dumortier, 1822 (unassessed) · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Corsiniaceae (Family)
 Tessellina Dumortier, 1874 accepted as · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Oxymitraceae (Family)

Tesseraria
     Tesseraria Haeckel, 1880 accepted as Tesseraria Haeckel, 1880 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Tesseraria Böttger, 1881 accepted as Phenacharopa Pilsbry in Tryon & Pilsbry, 1893 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)

Tessmannella
     Tessmannella Hedicke, 1912 accepted as Tessmannella Hedicke, 1912 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Tessmannella Enderlein, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Platystomatidae (Family)

Tessmannia
     Tessmannia Bryk, 1915 accepted as Tessmannia Bryk, 1915 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tessmannia Harms, 1910 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Testacella
     Testacella Lamarck, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Testacellidae (Family)
 Testacella Cuvier, 1805 accepted as Testacella Lamarck, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Testacellidae (Family)
     Testacella Cuvier, 1800 accepted as Testacella Lamarck, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Testacellidae (Family)
 Testacella Draparnaud, 1801 accepted as Testacella Lamarck, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Testacellidae (Family)

Testacellus
     Testacellus Montfort, 1810 accepted as Testacellus Montfort, 1810 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Testacellus Férussac, 1819 accepted as Testacella Lamarck, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Testacellidae (Family)

Testudinalia
     Testudinalia Moskalev, 1964 accepted as Testudinalia Moskalev, 1964 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Patellogastropoda (Order) > Lottiidae (Family)
     Testudinalia Moskalev, 1966 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Patellogastropoda (Order) > Lottiidae (Family)

Testudinaria
     Testudinaria Taczanowski, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
 Testudinaria R.A. Salisbury in Burchell, 1824 accepted as Dioscorea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dioscoreales (Order) > Dioscoreaceae (Family)
     Testudinaria Zhang Junfeng, Sun Bo & Zhang Xiyu, 1994 † accepted as Testudinaria Zhang Junfeng, Sun Bo & Zhang Xiyu, 1994 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneae (awaiting allocation) (Family)

Testudinella
     Testudinella Bory de St. Vincent, 1826 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Flosculariaceae (Order) > Testudinellidae (Family)
     Testudinella Gray, 1870 accepted as Testudinella Gray, 1870 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Testudinidae (Family)

Tesuquea
     Tesuquea Klots, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Carposinidae (Family)
     Tesuquea Sutherland & Harlow, 1973 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productidae (Family)

Tetanocera
     Tetanocera Duméril, 1800 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sciomyzidae (Family)
     Tetanocera Latreille, 1804 accepted as Tetanocera Latreille, 1804 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Tetanonema
     Tetanonema Steiner, 1928 accepted as Steinertetanonema Sokolov, 2010 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Steinertetanonematidae (Family)
 Tetanonema Steiner, 1937 accepted as Steinertetanonema Sokolov, 2010 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Steinertetanonematidae (Family)
 Tetanonema Ulmer, 1905 accepted as Helicopsyche Bremi in Siebold, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Helicopsychidae (Family)

Tethea
     Tethea Ochsenheimer, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Thyatiridae (Family)
 Tethea Johnston, 1842 accepted as Tethya Lamarck, 1815 (misspelling) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)

Tethia
 Tethia Nardo, 1847 accepted as Stelletta Schmidt, 1862 (misspelling and junior synonym) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)
 Tethia Lamarck, 1816 accepted as Tethya Lamarck, 1815 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)

Tethis
 Tethis Crosse, 1861 † accepted as Thetis Sowerby, 1826 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Mactromyidae (Family)
 Tethis Linnaeus, 1758 accepted as Tethys Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tethydidae (Family)
 Tethis Bosc, 1801 accepted as Tethys Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tethydidae (Family)

Tethya
     Tethya Lamarck, 1815 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)
 Tethya Gray, 1840 accepted as Tethys Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tethydidae (Family)

Tethyopsilla
     Tethyopsilla Lendenfeld, 1887 accepted as Tethyopsilla Lendenfeld, 1887 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Spirophorida (Order) > Tetillidae (Family)
 Tethyopsilla Lendenfeld, 1888 accepted as Craniella Schmidt, 1870 (junior synonym) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Spirophorida (Order) > Tetillidae (Family)

Tethyopsis
     Tethyopsis Stewart, 1870 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)
 Tethyopsis Zittel, 1878 † accepted as Theneopsis Schrammen, 1910 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)

Tethyorhaphis
     Tethyorhaphis Lendenfeld, 1887 accepted as Tethyorhaphis Lendenfeld, 1887 (unassessed) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)
     Tethyorhaphis Lendenfeld, 1887 accepted as Tethyorhaphis Lendenfeld, 1887 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)

Tethyorrhaphis
     Tethyorrhaphis Lendenfeld, 1887 accepted as Tethyorrhaphis Lendenfeld, 1887 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)
 Tethyorrhaphis Lendenfeld, 1888 accepted as Tethya Lamarck, 1815 (junior synonym) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)

Tethys
     Tethys Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tethydidae (Family)
 Tethys Leach, 1852 accepted as Tethys Leach, 1852 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Styelidae (Family)
 Tethys Linnaeus, 1758 accepted as Tethys Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tethydidae (Family)

Tethysia
     Tethysia Mathews, 1933 accepted as Tethysia Mathews, 1933 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tethysia Donze, 1975 † accepted as Tethysia Donze, 1975 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Tethysiella
     Tethysiella Blau in Blau & Haas, 1991 † accepted as Tethysiella Blau in Blau & Haas, 1991 † (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > (Order) > Protozoa (awaiting allocation) (Family)
     Tethysiella Kotlyar, Zakharov & Polubotko, 2004 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productellidae (Family)

Tethyspira
     Tethyspira Topsent, 1890 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Halichondrida (Order) > Dictyonellidae (Family)
     Tethyspira Siblik, 1991 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Spiriferinidae (Family)

Tethyum
 Tethyum Bohadsch, 1761 accepted as Halocynthia Verrill, 1879 (Suppressed) · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Pyuridae (Family)
 Tethyum Lieberkühn, 1859 accepted as Tethya Lamarck, 1815 (misspelling) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)

Tetigonia
 Tetigonia Geoffroy, 1762 accepted as Cicadella Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Tetigonia Blanchard in Gay, 1852 accepted as Cicadella Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Tetilla
     Tetilla Schmidt, 1868 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Spirophorida (Order) > Tetillidae (Family)
     Tetilla A.P. de Candolle, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Geraniales (Order) > Francoaceae (Family)

Tetillopsis
     Tetillopsis Schrammen, 1910 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Astrophorida (awaiting allocation) (Family)
     Tetillopsis Hong, 1982 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tetoria
     Tetoria Kobayashi & Suzuki, 1937 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Cyrenidae (Family)
     Tetoria T. Kimura & S. Sekido, 1974 † accepted as Tetoria T. Kimura & S. Sekido, 1974 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadales (Order) > Cycadales (awaiting allocation) (Family)

Tetrabaena
     Tetrabaena F. Dujardin, 1841 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Tetrabaenaceae (Family)
     Tetrabaena Fromentel · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Tetrabaenaceae (Family)

Tetrabaeus
     Tetrabaeus Kieffer in André, 1912 accepted as Tetrabaeus Kieffer in André, 1912 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Tetrabaeus Ogloblin, 1957 accepted as Tetrabaeus Ogloblin, 1957 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)

Tetrabrachium
     Tetrabrachium A. Nawawi & A.J. Kuthubutheen, 1987 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Tetrabrachium Günther, 1880 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Tetrabrachiidae (Family)

Tetracanthus
     Tetracanthus A. Richard in Sagra, 1850 accepted as Tetracanthus A. Richard in Sagra, 1850 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Tetracanthus Popofsky, 1907 † accepted as Tetracanthus Popofsky, 1907 † (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > (Order) > Protozoa (awaiting allocation) (Family)
 Tetracanthus Hope, 1834 accepted as Chlorida Audinet-Serville, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tetracanthus Hemprich & Ehrenberg in Schneider, 1866 accepted as Ancyracanthus Diesing, 1839 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Gnathostomatidae (Family)

Tetracarpaea
     Tetracarpaea W.J. Hooker, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Tetracarpaeaceae (Family)
 Tetracarpaea G. Bentham, 1858 accepted as Anisophyllea R. Brown ex Sabine, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Anisophylleaceae (Family)

Tetracentron
     Tetracentron D. Oliver, 1889 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Trochodendrales (Order) > Trochodendraceae (Family)
     Tetracentron Brauer, 1865 accepted as Tetracentron Brauer, 1865 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)

Tetracera
     Tetracera Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dilleniales (Order) > Dilleniaceae (Family)
 Tetracera McMurtrie in McMurtrie-Cuvier, 1831 accepted as Tetracerus Leach, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Tetraceras
     Tetraceras R. Chodat, 1894 accepted as Tetraceras R. Chodat, 1894 · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Oocystales (Order) > Oocystaceae (Family)
 Tetraceras Sundevall, 1846 accepted as Tetracerus Leach, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Tetraceratium
     Tetraceratium (A.P. de Candolle) O. Kuntze, 1891 accepted as Tetraceratium (A.P. de Candolle) O. Kuntze, 1891 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Tetraceratium Muir, 1924 accepted as Tetraceratium Muir, 1924 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Flatidae (Family)

Tetrachaeta
     Tetrachaeta Ehrenberg, 1844 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Bacillariophyceae (awaiting allocation) (Order) > Bacillariophyceae (awaiting allocation) (Family)
     Tetrachaeta Brauer & Bergenstamm, 1894 accepted as Tetrachaeta Brauer & Bergenstamm, 1894 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Tetrachaeta Stein, 1898 accepted as Tetramerinx Berg, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)

Tetrachaetus
     Tetrachaetus Bickel & Dyte, 1989 accepted as Tetrachaetus Bickel & Dyte, 1989 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
     Tetrachaetus Parent, 1933 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Tetrachela
     Tetrachela Reuss, 1858 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Tetrachelidae (Family)
     Tetrachela Hampson, 1918 accepted as Tetrachela Hampson, 1918 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Tetrachia
 Tetrachia P.A. Saccardo, 1921 accepted as Spegazzinia P.A. Saccardo, 1879 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Tetrachia Berkeley & M.A. Curtis, 1882 accepted as Spegazzinia P.A. Saccardo, 1879 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Tetrachloris
     Tetrachloris A. Pascher, 1925 accepted as Tetrachloris A. Pascher, 1925 (unassessed) · Bacteria (Kingdom) > Bacteria (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
 Tetrachloris A.A. Korsikov, 1939 accepted as Tetrachloris A.A. Korsikov, 1939 (Misspelling) · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Oocystales (Order) > Oocystaceae (Family)
 Tetrachloris Pascher & R.Jahoda, 1928 accepted as Quadrichloris Fott, 1959 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Polyblepharidaceae (Family)

Tetrachrysis
     Tetrachrysis A.J. Dop, 1980 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeothamniophyceae (Class) > Phaeothamniales (Order) > Phaeothamniaceae (Family)
     Tetrachrysis Lichtenstein, 1876 accepted as Tetrachrysis Lichtenstein, 1876 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chrysididae (Family)

Tetracis
 Tetracis Sharp, 1874 accepted as Desimia Reitter, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Tetracis Guenée, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Tetracladium
     Tetracladium De Wildeman, 1893 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)
     Tetracladium Kulachkova, 1954 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Opisthorchiida (Order) > Heterophyidae (Family)
     Tetracladium (Mitten) V.F. Brotherus in Engler & Prantl, 1925 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Thuidiaceae (Family)

Tetracme
     Tetracme Hampson, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Tetracme Bunge, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Tetracoccus
 Tetracoccus Tereg, 1923 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Tetrasporales (Order) > Tetrasporaceae (Family)
 Tetracoccus accepted as Tetracoccus (No current standing in Prokaryotic nomenclature.) · Bacteria (Kingdom) > Bacteria (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
     Tetracoccus Engelmann ex C. Parry, 1885 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Picrodendraceae (Family)
 Tetracoccus W. West, 1892 accepted as Westella De Wildeman, 1897 (junior homonym) · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Dictyosphaeriaceae (Family)

Tetracona
     Tetracona K.B. Korde in A.A. Istchenko, 1986 † accepted as Tetracona K.B. Korde in A.A. Istchenko, 1986 † (unassessed) · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycetes (Class) > Ascomycetes incertae sedis (Order) > Ascomycetes incertae sedis (Family)
     Tetracona Meyrick, 1884 accepted as Tetracona Meyrick, 1884 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Tetracotylus
     Tetracotylus Monticelli, 1892 accepted as Tetracotylus Monticelli, 1892 (unassessed) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)
     Tetracotylus Korotneff, 1912 accepted as Tetracotylus Korotneff, 1912 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Turbellaria (awaiting allocation) (Order) > Turbellaria (awaiting allocation) (Family)

Tetracrinites
     Tetracrinites Austin, 1842 accepted as Tetracrinites Austin, 1842 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Tetracrinites Catullo, 1847 accepted as Tetracrinites Catullo, 1847 (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Tetracrinus
     Tetracrinus Münster, 1839 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Cyrtocrinida (Order) > Cyrtocrinida (awaiting allocation) (Family)
 Tetracrinus Bather in Lankester, 1900 accepted as Tetracrinus Bather in Lankester, 1900 (Misspelling) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Tetracrinus Wachsmuth & Springer, 1886 accepted as Tetracrinus Wachsmuth & Springer, 1886 (Misspelling) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Tetractis
     Tetractis Andres, 1883 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Boloceroididae (Family)
     Tetractis Schultze, 1760 accepted as Tetractis Schultze, 1760 (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Tetractys
 Tetractys E. Boureau, M. Locquin & P. Taugourdeau, 1985 † accepted as · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Tetractys K.P.J. Sprengel, 1822 accepted as Tetractys K.P.J. Sprengel, 1822 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)

Tetracyphus
     Tetracyphus Chevrolat, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
 Tetracyphus Sørensen, 1932 accepted as Roquettea Mello-Leitão, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Cosmetidae (Family)

Tetracystis
     Tetracystis R.M. Brown, Jr. & H.C. Bold, 1964 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Chlorococcaceae (Family)
     Tetracystis Schuchert, 1904 † · Animalia (Kingdom) > Echinodermata (Phylum) > Rhombifera (Class) > Dichoporita (Order) > Callocystitidae (Family)

Tetradenia
     Tetradenia Bentham, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Tetradenia C.G.D. Nees in Wallich, 1831 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Lauraceae (Family)

Tetradia
     Tetradia T. Johnson, 1904 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Tetradia Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tetradia Du Petit-Thouars ex Tulasne, 1856 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Lythraceae (Family)
 Tetradia R. Brown, 1844 accepted as Pterygota H.W. Schott & Endlicher, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Tetradinium
     Tetradinium Klebs, 1912 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Phytodiniales (Order) > Phytodiniaceae (Family)
 Tetradinium Vavrdová, 1973 † accepted as Tetraniveum Vavrdová, 1976 † · Protozoa (Kingdom) > Acritarcha (Phylum) > Acritarcha (awaiting allocation) (Class) > Acritarcha (awaiting allocation) (Order) > Acritarcha (awaiting allocation) (Family)

Tetradites
     Tetradites Sokolov, 1950 † accepted as Tetradites Sokolov, 1950 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Anthozoa (awaiting allocation) (Order) > Anthozoa (awaiting allocation) (Family)
     Tetradites I.C. Cookson, 1947 † accepted as Tetradites I.C. Cookson, 1947 † (unassessed) · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
 Tetradites T. van der Hammen, 1954 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Tetradium
     Tetradium Dana in Wilkes, 1841 † · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Tetradiida (Order) > Tetradiidae (Family)
     Tetradium Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Tetradium Schlechtendal, 1852 accepted as Bremia Regel, 1843 · Chromista (Kingdom) > Pseudofungi (Phylum) > Oomycetes (Class) > Peronosporales (Order) > Peronosporaceae (Family)
 Tetradium Schmidt, 1874 † accepted as Palaenigma Walcott, 1885 † · Animalia (Kingdom) > Cnidaria (Phylum) > Scyphozoa (Class) > Conulariida (Order) > Conulariida (awaiting allocation) (Family)
 Tetradium Dulac, 1867 accepted as Rhodiola Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)

Tetraechma
     Tetraechma Blanchard, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Tetraechma Agassiz, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Tetraedroides
     Tetraedroides B.M. Griffiths, 1923 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Hydrodictyaceae (Family)
     Tetraedroides Kützing, 1845 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Oocystales (Order) > Oocystaceae (Family)

Tetraëdroides
 Tetraëdroides Kützing, 1845 † accepted as Tetraedroides Kützing, 1845 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Oocystales (Order) > Oocystaceae (Family)
 Tetraëdroides B.M. Griffiths, 1923 accepted as Tetraedroides B.M. Griffiths, 1923 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Hydrodictyaceae (Family)

Tetrafossularia
     Tetrafossularia Iwanowski, 1988 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)
     Tetrafossularia Ivanovsk, 1992 † accepted as Tetrafossularia Ivanovsk, 1992 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Anthozoa (awaiting allocation) (Order) > Anthozoa (awaiting allocation) (Family)

Tetraglossa
 Tetraglossa Champion, 1897 accepted as Anchytarsus Guérin-Ménéville, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptilodactylidae (Family)
 Tetraglossa R.H. Beddome, 1861 accepted as Cleidion Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Tetragnatha
     Tetragnatha Walckenaer, 1805 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Tetragnathidae (Family)
     Tetragnatha Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Tetragnathidae (Family)

Tetragona
 Tetragona Dejean, 1833 accepted as Tetragona Dejean, 1833 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Tetragona Lepeletier, 1828 accepted as Tetragona Lepeletier, 1828 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)

Tetragoneura
     Tetragoneura Winnertz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Mycetophilidae (Family)
 Tetragoneura Selys, 1870 accepted as Tetragoneuria Hagen, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Corduliidae (Family)

Tetragonia
     Tetragonia Desutter-Grandcolas, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Phalangopsidae (Family)
     Tetragonia Hagen, 1849 accepted as Tetragonia Hagen, 1849 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
     Tetragonia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)

Tetragonidium
     Tetragonidium Bode, 1953 † accepted as Tetragonidium Bode, 1953 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tetragonidium Pascher, 1914 · Chromista (Kingdom) > Cryptista (Phylum) > Cryptophyceae (Class) > Tetragonidiales (Order) > Tetragonidiaceae (Family)

Tetragonites
     Tetragonites Kossmat, 1895 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
 Tetragonites Kittl, 1904 † accepted as Entogonites Kittl, 1904 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Goniatitida (Order) > Entogonitidae (Family)

Tetragonocarpus
     Tetragonocarpus Hasskarl, 1857 accepted as Tetragonocarpus Hasskarl, 1857 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Tetragonocarpus E.O. Novik, 1951 † accepted as Novikocarpus A.B. Doweld, 2000 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Pachytestales (Order) > Pachytestales (awaiting allocation) (Family)

Tetragonoderus
     Tetragonoderus Dejean, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Tetragonoderus Dejean, 1821 accepted as Tetragonoderus Dejean, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tetragonolepis
     Tetragonolepis Agassiz, 1833 † accepted as Tetragonolepis Agassiz, 1833 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Tetragonolepis Bronn, 1830 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Amiiformes (Order) > Semionotidae (Family)

Tetragonops
     Tetragonops Gerstaecker, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Tetragonops Jardine, 1855 accepted as Tetragonops Jardine, 1855 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Piciformes (Order) > Ramphastidae (Family)

Tetragonopterus
     Tetragonopterus Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)
     Tetragonopterus Perroud & Montrouzier, 1864 accepted as Tetragonopterus Perroud & Montrouzier, 1864 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Tetragonopterus Bleeker, 1863 accepted as Chaetodon Linnaeus, 1758 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)

Tetragonoptrus
     Tetragonoptrus Klein, 1776 accepted as Tetragonoptrus Klein, 1776 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Chaetodontidae (Family)
 Tetragonoptrus Walbaum (ex Klein), 1792 accepted as Chaethodon Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Chaetodontidae (Family)

Tetragonurus
     Tetragonurus Eisen, 1874 accepted as Tetragonurus Eisen, 1874 (unassessed) · Animalia (Kingdom) > Annelida (Phylum) > Oligochaeta (Class) > Haplotaxida (Order) > Lumbricidae (Family)
     Tetragonurus Risso, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Tetragonuridae (Family)

Tetragonus
     Tetragonus Geyer in Hübner, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Callidulidae (Family)
     Tetragonus Gory & Percheron, 1834 accepted as Tetragonus Gory & Percheron, 1834 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Tetragramma
     Tetragramma L. Agassiz, 1838 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Phymosomatoida (Order) > Diplopodiidae (Family)
     Tetragramma Ehrenberg, 1843 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Centrales (Order) > Biddulphiaceae (Family)

Tetragrapsus
 Tetragrapsus Salter, 1863 † accepted as Tetragrapsus Salter, 1863 † (Misspelling) · Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Graptoloidea (Order) > Dichograptidae (Family)
     Tetragrapsus Rathbun, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Varunidae (Family)

Tetrahit
 Tetrahit Moench, 1794 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Tetrahit Gérard, 1761 accepted as Tetrahit Gérard, 1761 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Tetrakentron
 Tetrakentron A. Pascher, 1937 accepted as · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Pleurochloridaceae (Family)
     Tetrakentron Cuénot, 1892 · Animalia (Kingdom) > Tardigrada (Phylum) > Heterotardigrada (Class) > Arthrotardigrada (Order) > Halechiniscidae (Family)

Tetralepis
     Tetralepis Steudel, 1855 accepted as Tetralepis Steudel, 1855 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
     Tetralepis Böttger, 1892 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Tetralichas
     Tetralichas Phleger, 1936 † accepted as Tetralichas Phleger, 1936 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Tetralichas Weber, 1951 † accepted as Tetralichas Weber, 1951 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Tetralicia
     Tetralicia Harrison, 1917 accepted as Tetralicia Harrison, 1917 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aleyrodidae (Family)
 Tetralicia Aurivillius, 1923 accepted as Egalicia Lane, 1974 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tetralinus
 Tetralinus Bordoni, 1975 accepted as Xantholinus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tetralinus Bordoni, 1972 accepted as Xantholinus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tetralites
     Tetralites Mironova, 1970 † accepted as Tetralites Mironova, 1970 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Anthozoa (awaiting allocation) (Order) > Anthozoa (awaiting allocation) (Family)
     Tetralites Bondarenko, 1980 † accepted as Tetralites Bondarenko, 1980 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Tabulata (Order) > Tabulata (awaiting allocation) (Family)

Tetralix
     Tetralix Grisebach, 1866 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Tetralix J. Hill, 1762 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Tetralix Zinn, 1757 accepted as Tetralix Zinn, 1757 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)

Tetraloba
     Tetraloba Alvarez, Rong & Boucot, 1998 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Athyrididae (Family)
     Tetraloba Lee, 1983 accepted as Tetraloba Lee, 1983 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Neanuridae (Family)

Tetralobus
     Tetralobus Lepeletier & Serville, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Tetralobus Alph. de Candolle, 1844 accepted as Utricularia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lentibulariaceae (Family)

Tetralopha
     Tetralopha Zeller, 1848 accepted as Tetralopha Zeller, 1848 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tetralopha J.D. Hooker, 1870 accepted as Gynochtodes Blume, 1827 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Tetramastix
 Tetramastix A. Alexieff, 1916 accepted as · Chromista (Kingdom) > Bigyra (Phylum) > Opalinea (Class) > Proteromonadida (Order) > Proteromonadidae (Family)
 Tetramastix Korshikov, 1925 accepted as Provasoliella A.R. Loeblich III, 1967 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Chlamydomonadaceae (Family)
 Tetramastix Zacharias, 1898 accepted as Filinia Bory De St. Vincent, 1824 (junior subjective synonym) · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Flosculariaceae (Order) > Trochosphaeridae (Family)

Tetrameres
     Tetrameres Barrande, 1867 accepted as Tetrameres Barrande, 1867 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tetrameres Creplin, 1846 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Tetrameridae (Family)
     Tetrameres Gubanov, 1950 accepted as Tetrameres Gubanov, 1950 (unassessed) · Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)
 Tetrameres Schaufuss, 1877 accepted as Edaphus Motschulsky, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tetramerium
     Tetramerium C.G.D. Nees in Bentham, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Tetramerium C.F. Gaertner, 1806 accepted as Faramea Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Tetramerocrinites
     Tetramerocrinites Austin, 1843 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)
     Tetramerocrinites Austin, 1842 † accepted as Tetramerocrinites Austin, 1843 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)

Tetramicra
     Tetramicra J. Lindley, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Tetramicra R.A. Matthews & A.B.F. Matthews, 1980 · Protozoa (Kingdom) > Microsporidia (Phylum) > Minisporea (Class) > Microsporida (Order) > Unikaryonidae (Family)

Tetramitus
     Tetramitus sensu auct. post. · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Goniaceae (Family)
     Tetramitus Perty, 1852 · Protozoa (Kingdom) > Amoebozoa (Phylum) > (Class) > Schizopyrenida (Order) > Vahlkampfiidae (Family)

Tetranema
 Tetranema Cossmann, 1912 † accepted as Tetranema Cossmann, 1912 † (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)
     Tetranema Bentham, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)
 Tetranema J.E. Areschoug, 1850 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Tetranema Haeckel, 1879 accepted as Tetranema Haeckel, 1879 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Halopterididae (Family)
 Tetranema Fraser, 1937 accepted as Astrolabia Naumov, 1955 (junior homonym of Tetranema Haeckel, 1879) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Halopterididae (Family)

Tetraneura
     Tetraneura Hartig in Germar, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
 Tetraneura Konow, 1905 accepted as Tetraneura Konow, 1905 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Tetraneurella
 Tetraneurella Dahl, 1909 † accepted as Stilpon Loew, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Hybotidae (Family)
 Tetraneurella Hille Ris Lambers, 1970 accepted as Tetraneura Hartig in Germar, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)

Tetranevra
 Tetranevra Agassiz, 1846 accepted as Tetraneura Hartig in Germar, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
 Tetranevra Selys, 1859 accepted as Devadatta Kirby, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Devadattidae (Family)

Tetraodon
     Tetraodon Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Tetraodontidae (Family)
     Tetraodon Broili & Schröder, 1936 † accepted as Tetraodon Broili & Schröder, 1936 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Tetraonyx
     Tetraonyx Latreille in Humboldt & Bonpland, 1809 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Meloidae (Family)
     Tetraonyx Gray, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Geoemydidae (Family)

Tetraopes
     Tetraopes Schönherr, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tetraopes Kirby, 1826 accepted as Tetrops Kirby, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tetraophthalmus
 Tetraophthalmus Burmeister, 1847 accepted as Tetraophthalmus Burmeister, 1847 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
     Tetraophthalmus Dejean, 1835 accepted as Tetraophthalmus Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tetraophthalmus Kellogg, 1896 accepted as Piagetiella Neumann, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Menoponidae (Family)
 Tetraophthalmus Lesson, 1831 accepted as Chiasognathus Stephens, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
 Tetraophthalmus Guérin-Ménéville, 1844 accepted as Astathes Newman, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tetrapedia
     Tetrapedia Klug, 1810 accepted as Tetrapedia Klug, 1810 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
     Tetrapedia Reinsch, 1866 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Hydrodictyaceae (Family)

Tetraphana
     Tetraphana Skuse, 1890 accepted as Tetraphana Skuse, 1890 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Tetraphana Ragonot, 1891 accepted as Tetraphana Ragonot, 1891 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Tetraphis
     Tetraphis Horváth, 1896 accepted as Tetraphis Horváth, 1896 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tetraphis J. Hedwig, 1801 · Plantae (Kingdom) > Bryophyta (Phylum) > Tetraphidopsida (Class) > Tetraphidales (Order) > Tetraphidaceae (Family)

Tetraphleps
     Tetraphleps Fieber, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Anthocoridae (Family)
 Tetraphleps Hampson, 1893 accepted as Tetraphleba Strand, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Limacodidae (Family)

Tetraphora
     Tetraphora Philippi, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ceratopogonidae (Family)
 Tetraphora Laseron, 1958 accepted as Costatophora B. A. Marshall, 1994 (invalid: junior homonym of Tetraphora Philippi, 1865 [Diptera]; Brucetriphora is a replacement name ) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Triphoridae (Family)

Tetraphyllum
     Tetraphyllum Ludwig, 1865 † accepted as Tetraphyllum Ludwig, 1865 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Tetraphyllum W. Griffith ex C.B. Clarke in Alph. de Candolle & A.C. de Candolle, 1883 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Tetraphyllus
     Tetraphyllus Laporte & Brullé, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Tetraphyllus Jean Charles Coquerel, 1852 accepted as Damatris de Laporte in Brullé, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tetrapion
     Tetrapion Wanat, 2001 † accepted as Tetrapion Wanat, 2001 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Tetrapion Pascher, 1943 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeothamniophyceae (Class) > Phaeothamniales (Order) > Phaeothamniaceae (Family)

Tetrapleura
     Tetrapleura Schiner, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ulidiidae (Family)
     Tetrapleura Bentham, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Tetrapleura Parlatore in Webb in W.J. Hooker, 1849 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Tetraplodon
     Tetraplodon Spix, 1827 accepted as Tetraplodon Spix, 1827 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
     Tetraplodon Bruch & W.P. Schimper in Bruch, W.P. Schimper & Gümbel, 1844 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Splachnales (Order) > Splachnaceae (Family)

Tetrapoma
 Tetrapoma Turczaninow ex F.E.L. Fischer & C.A. Meyer, 1835 accepted as Rorippa Scopoli, 1760 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Tetrapoma Levinsen, 1893 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Campanulinidae (Family)

Tetrapora
     Tetrapora Quenstedt, 1858 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Cyclostomatida (awaiting allocation) (Family)
 Tetrapora Schauer, 1843 accepted as Baeckea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Tetrapora Yabe & Hayasaka, 1915 † accepted as Hayasakaia Lang, Smith & Thomas, 1940 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Auloporida (Order) > Tetraporellidae (Family)

Tetraposthia
     Tetraposthia An der Lan, 1936 · Animalia (Kingdom) > Xenacoelomorpha (Phylum) > Acoelomorpha incertae sedis (Class) > Acoela (Order) > Actinoposthiidae (Family)
     Tetraposthia Steinböck, 1931 accepted as Tetraposthia An der Lan, 1936 (nomen nudum) · Animalia (Kingdom) > Xenacoelomorpha (Phylum) > Acoelomorpha incertae sedis (Class) > Acoela (Order) > Childiidae (Family)

Tetraprion
     Tetraprion Stejneger, 1891 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hylidae (Family)
     Tetraprion Kielan-Jaworowska, 1966 † · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Eunicemorpha (Order) > Eunicemorpha (awaiting allocation) (Family)

Tetraptera
 Tetraptera A. Rasumov, 1923 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Asteromonadaceae (Family)
 Tetraptera R.A. Philippi, 1870 accepted as Gaya Kunth in Humboldt, Bonpland & Kunth, 1822 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Tetrapteron
     Tetrapteron (P.A. Munz) W.L. Wagner & P.C. Hoch, 2007 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Onagraceae (Family)
     Tetrapteron Claus, 1878 accepted as Tetrapteron Claus, 1878 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Tetrapterum
     Tetrapterum Hampe in Müller Hal., 1848 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)
 Tetrapterum Hampe ex A.E. Jaeger, 1869 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)

Tetrapturus
     Tetrapturus Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Istiophoridae (Family)
     Tetrapturus Cuvier in Cuvier & Valenciennes, 1832 accepted as Tetrapturus Cuvier in Cuvier & Valenciennes, 1832 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Istiophoridae (Family)

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

Tetrasella
     Tetrasella Gorjunova, 2010 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cryptostomida (Order) > Rhabdomesidae (Family)
     Tetrasella Gorjunova, 2011 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cryptostomida (Order) > Rhabdomesidae (Family)

Tetrasiphon
     Tetrasiphon Ehrenberg, 1840 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Notommatidae (Family)
     Tetrasiphon Urban, 1904 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Tetrasoma
     Tetrasoma A.K.J. Corda, 1839 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Hydrodictyaceae (Family)
 Tetrasoma Swainson, 1839 accepted as Tetrosomus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Ostraciidae (Family)

Tetrasphaera
     Tetrasphaera Maszenan et al., 2000 · Bacteria (Kingdom) > Actinobacteria (Phylum) > Actinobacteria (Class) > Micrococcales (Order) > Intrasporangiaceae (Family)
 Tetrasphaera B.V. Timofeev & T.N. Hermann in B.S. Sokolov, 1979 † accepted as · Protozoa (Kingdom) > Acritarcha (Phylum) > Acritarcha (awaiting allocation) (Class) > Acritarcha (awaiting allocation) (Order) > Acritarcha (awaiting allocation) (Family)
     Tetrasphaera Popofsky, 1912 accepted as Tetrasphaera Popofsky, 1912 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Tetrasphaera H. Górka, 1965 † accepted as Gorkadinium A.R. Loeblich Jr. & A.R. Loeblich III, 1966 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniphycidae (awaiting allocation) (Order) > Peridiniphycidae (awaiting allocation) (Family)
     Tetrasphaera Wang, 2008 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)

Tetraspinus
     Tetraspinus Boczek, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Eriophyidae (Family)
     Tetraspinus Martins-Neto, 1995 † accepted as Tetraspinus Martins-Neto, 1995 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Tetraspis
     Tetraspis Hagenmüller, 1885 accepted as Tetraspis Hagenmüller, 1885 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tetraspis Chiovenda, 1912 accepted as Tetraspis Chiovenda, 1912 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Tetraspora
     Tetraspora Link ex Desvaux, 1818 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Tetrasporales (Order) > Tetrasporaceae (Family)
     Tetraspora Hallett & Lester, 1999 · Animalia (Kingdom) > Cnidaria (Phylum) > Actinomyxea (Class) > Actinomyxida (Order) > Sphaeractinomyxidae (Family)
 Tetraspora F.A.W. Miquel, 1859 accepted as Baeckea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Tetrastemma
     Tetrastemma Ehrenberg, 1831 · Animalia (Kingdom) > Nemertea (Phylum) > Enopla (Class) > Hoplonemertea (Order) > Tetrastemmatidae (Family)
 Tetrastemma Diels, 1906 accepted as Uvariopsis Engler, 1899 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliales (Order) > Annonaceae (Family)

Tetraster
     Tetraster Nicholson & Etheridge, 1880 † accepted as Tetraster Nicholson & Etheridge, 1880 † (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Tetraster Oshmarin, 1965 accepted as Elongoparorchis Rao, 1961 (synonym) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Azygiida (Order) > Dictysarcidae (Family)

Tetrastichella
     Tetrastichella Girault, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)
 Tetrastichella Pichon, 1946 accepted as Arrabidaea A.P. de Candolle, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Bignoniaceae (Family)

Tetrastichium
     Tetrastichium (Mitten) Cardot, 1908 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hookeriales (Order) > Hookeriaceae (Family)
 Tetrastichium (V.F. Brotherus) M. Fleischer, 1923 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Thuidiaceae (Family)

Tetrastichus
     Tetrastichus Haliday, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)
 Tetrastichus Walker, 1842 accepted as Tetrastichus Haliday, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)

Tetrastigma
     Tetrastigma (Miquel) Planchon in Alph. de Candolle & A.C. de Candolle, 1887 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Vitales (Order) > Vitaceae (Family)
 Tetrastigma K. Schumann, 1896 accepted as Schumanniophyton Harms in Engler & Prantl, 1897 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Tetrastoma
     Tetrastoma Forbes, 1840 accepted as Tetrastoma Forbes, 1840 (unassessed) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)
     Tetrastoma Chiaje, 1833 accepted as Tetrastoma Chiaje, 1833 (unassessed) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)

Tetrataxis
     Tetrataxis J.D. Hooker in Bentham & J.D. Hooker, 1867 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Lythraceae (Family)
     Tetrataxis Ehrenberg, 1854 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Tetrataxidae (Family)

Tetratheca
     Tetratheca Sysoev, 1968 † · Animalia (Kingdom) > Hyolitha (Phylum) > (Class) > Orthothecida (Order) > Orthothecida (awaiting allocation) (Family)
     Tetratheca J.E. Smith, 1793 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Elaeocarpaceae (Family)

Tetrathyrus
     Tetrathyrus Claus, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Platyscelidae (Family)
     Tetrathyrus Creplin, 1851 accepted as Tetrathyrus Creplin, 1851 (unassessed) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)

Tetratoma
 Tetratoma Gistl, 1848 accepted as Tetratoma Gistl, 1848 (Unjustified (?) emendation) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
     Tetratoma Signoret, 1851 accepted as Tetratoma Signoret, 1851 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
 Tetratoma Cameron, 1890 accepted as Tetratoma Cameron, 1890 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Tetratoma Fabricius, 1790 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tetratomidae (Family)
     Tetratoma Bütschli in Bronn, 1884 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Chlamydomonadaceae (Family)

Tetrax
     Tetrax Forster, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Gruiformes (Order) > Otididae (Family)
     Tetrax Leach, 1816 accepted as Tetrax Leach, 1816 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Tetrisia
     Tetrisia Walker, 1867 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Tetrisia Walker, 1867 accepted as Tetrisia Walker, 1867 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Tetrix
     Tetrix Morris in Wood, 1837 accepted as Tetrix Morris in Wood, 1837 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tetrix Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)

Tetrodon
     Tetrodon Ameghino, 1882 † accepted as Tetrodon Ameghino, 1882 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Tetrodon M.A. Clements & D.L. Jones, 1998 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Tetrodon Linnaeus, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Tetraodontidae (Family)

Tetromatus
 Tetromatus Bate, 1857 accepted as Ampelisca Krøyer, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ampeliscidae (Family)
     Tetromatus Bate, 1856 accepted as Ampelisca Krøyer, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ampeliscidae (Family)

Tetromma
     Tetromma Dejean, 1834 accepted as Tetromma Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Tetromma Keyserling, 1878 accepted as Josa Keyserling & Marx, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Anyphaenidae (Family)

Tetrophthalmus
 Tetrophthalmus Laporte, 1840 accepted as Tetrophthalmus Laporte, 1840 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
     Tetrophthalmus Kirby, 1827 accepted as Tetrophthalmus Kirby, 1827 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Tetrophthalmus Grosse, 1885 accepted as Piagetiella Neumann, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Menoponidae (Family)

Tetrops
     Tetrops Kirby, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Tetrops Stephens, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tetropthalmus
 Tetropthalmus Hope, 1845 accepted as Tetropthalmus Hope, 1845 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
 Tetropthalmus Kellogg, 1889 accepted as Piagetiella Neumann, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Menoponidae (Family)

Tetrura
 Tetrura Lesson, 1844 accepted as Tetrura Lesson, 1844 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tetrura Lichtenstein, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pseudococcidae (Family)

Tettigonia
     Tettigonia Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Tettigonia Fabricius, 1775 accepted as Cicadella Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Tettix
     Tettix Kirby & Spence, 1828 accepted as Tettix Kirby & Spence, 1828 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Tettix Dalman, 1823 accepted as Tetrix Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)

Tetyra
     Tetyra Fabricius, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Scutelleridae (Family)
 Tetyra Blyth in Blyth, 1840 accepted as Tityra Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)

Teuthis
     Teuthis Browne, 1789 accepted as Teuthis Browne, 1789 (Published in a rejected work (ICZN)) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)
 Teuthis Schneider, 1784 accepted as Acroteuthis Berry, 1913 (Invalid: junior homonym of Teuthis Linnaeus, 1767; placed on Official Index by ICZN Opinion 233) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Teuthoidea (Order) > Loliginidae (Family)
 Teuthis Linnaeus, 1766 accepted as Acanthurus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)

Teuthopsis
 Teuthopsis Wagner, 1859 † accepted as Palaeololigo Naef, 1921 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Teuthoidea (Order) > Loliginidae (Family)
 Teuthopsis Herrmannsen, 1849 † accepted as Teudopsis Eudes-Deslongchamps, 1835 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Octobrachia (Order) > Teudopseidae (Family)

Teutonia
     Teutonia Koenike, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Teutoniidae (Family)
     Teutonia Opitz, 1997 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)
 Teutonia Nordenskiöld, 1905 accepted as Nilotonia Thor, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Nilotoniidae (Family)
 Teutonia Verhoeff, 1910 accepted as Dilta Strand, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Archaeognatha (Order) > Machilidae (Family)

Tewoella
     Tewoella Ding & Li, 1987 † accepted as Tewoella Ding & Li, 1987 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Praecardioida (Order) > Praecardioida (awaiting allocation) (Family)
     Tewoella Sun, 1979 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Schubertellidae (Family)

Texania
     Texania Palmer, 1937 † accepted as Texania Palmer, 1937 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Texania Pohler, 1994 † accepted as Texania Pohler, 1994 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodontophorida (Order) > Conodonta (awaiting allocation) (Family)
     Texania Casey, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Texasia
     Texasia Reeside, 1932 † accepted as Texasia Reeside, 1932 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Texasia Cooper & Grant, 1969 † accepted as Texarina Cooper & Grant, 1970 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Cryptonellidae (Family)

Textor
     Textor Lichtenstein, 1823 accepted as Textor Lichtenstein, 1823 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Textor Temminck in Temminck & Laugier, 1827 accepted as Ploceus Cuvier, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Passeridae (Family)

Textrix
     Textrix Sundevall, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Agelenidae (Family)
 Textrix Römer, 1857 † accepted as Paphia Röding, 1798 (invalid: junior homonym of Textrix Sundevall, 1833 [Arachnida]; Paratapes Stoliczka, 1870 is a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)

Teysmannia
     Teysmannia F.A.W. Miquel, 1857 accepted as Teysmannia F.A.W. Miquel, 1857 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Teysmannia H.G.L. Reichenbach & Zollinger in Zollinger, 1858 accepted as Johannesteijsmannia H.E. Moore, 1961 (junior homonym) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Thaerocythere
     Thaerocythere Hazel, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Thaerocytheridae (Family)
     Thaerocythere Liebau, 1991 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Thaerocytheridae (Family)

Thaia
     Thaia Ghauri, 1962 accepted as Thaia Ghauri, 1962 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Thaia G. Seidenfaden, 1975 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Thailandia
     Thailandia Bílý, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Thailandia S. Vardhanabhuti, 1959 accepted as Candida Berkhout, 1923 · Fungi (Kingdom) > Ascomycota (Phylum) > Saccharomycetes (Class) > Saccharomycetales (Order) > Saccharomycetales incertae sedis (Family)

Thais
     Thais Haliday in Curtis, 1838 accepted as Thais Haliday in Curtis, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Thais Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
 Thais Fabricius, 1807 accepted as Parnalius Rafinesque, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Papilionidae (Family)

Thalamarchis
     Thalamarchis Meyrick, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
 Thalamarchis Meyrick, 1904 accepted as Thalamarchella Fletcher, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)

Thalamia
 Thalamia Hentz, 1850 accepted as Oecobius Lucas, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Oecobiidae (Family)
 Thalamia K.P.J. Sprengel, 1817 accepted as Phyllocladus Mirbel, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinales (Order) > Podocarpaceae (Family)

Thalanessa
 Thalanessa Chamberlin, 1919 accepted as Thalenessa Baird, 1868 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Sigalionidae (Family)
 Thalanessa Baird emend McIntosh, 1885 accepted as Thalenessa Baird, 1868 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Sigalionidae (Family)

Thalassema
     Thalassema Ranzani, 1817 accepted as Thalassema Ranzani, 1817 (Echiuran genus usage in Polychaeta) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sternaspida (Order) > Sternaspidae (Family)
     Thalassema Lamarck, 1801 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Echiurida (Order) > Echiuridae (Family)
     Thalassema Pallas, 1771 accepted as Thalassema Lamarck, 1801 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Echiurida (Order) > Echiuridae (Family)

Thalassia
 Thalassia Bonaparte, 1856 accepted as Thalassia Bonaparte, 1856 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Thalassia Dejean, 1835 accepted as Thalassia Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Thalassia Banks ex König, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Hydrocharitaceae (Family)
 Thalassia Gistl, 1847 accepted as Bonellia Rolando, 1821 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Bonelliida (Order) > Bonelliidae (Family)
 Thalassia Hutton, 1884 accepted as Thalassohelix Pilsbry, 1892 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)
 Thalassia Martens, 1860 accepted as Nitor Gude, 1911 (junior homonym) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicarionidae (Family)

Thalassina
     Thalassina Latreille, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Thalassinidae (Family)
     Thalassina Montague, 1815 accepted as Thalassina Montague, 1815 (unassessed) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Echiura (awaiting allocation) (Order) > Echiura (awaiting allocation) (Family)

Thalassionema
     Thalassionema Grunow ex Mereschkowsky, 1902 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Thalassionematales (Order) > Thalassionemataceae (Family)
 Thalassionema (H. Peragallo & M. Peragallo) M. Peragallo, 1921 accepted as Thalassionema Grunow ex Mereschkowsky, 1902 (subsequent published instance) · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Thalassionematales (Order) > Thalassionemataceae (Family)

Thalassites
 Thalassites Quenstedt, 1843 accepted as Thalassites Quenstedt, 1843 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Thalassites Swainson, 1837 accepted as Thalassites Swainson, 1837 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Thalassobius
     Thalassobius Arahal, Macian, Garay & Pujalte, 2005 · Bacteria (Kingdom) > Proteobacteria (Phylum) > Alphaproteobacteria (Class) > Rhodobacterales (Order) > Rhodobacteraceae (Family)
     Thalassobius Solier in Gay, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Thalassocrinus
     Thalassocrinus A.H. Clark, 1911 · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Millericrinida (Order) > Hyocrinidae (Family)
     Thalassocrinus Wanner, 1916 † accepted as Thalassocrinus Wanner, 1916 † (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Thalassodendron
     Thalassodendron den Hartog, 1970 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Cymodoceaceae (Family)
 Thalassodendron Lendenfeld, 1888 accepted as Clathria Schmidt, 1862 (junior synonym) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Microcionidae (Family)

Thalassomedon
     Thalassomedon Welles, 1943 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Plesiosauria (Order) > Elasmosauridae (Family)
 Thalassomedon Lecoq, 1987 accepted as Hexamedon Lecoq, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thalassomora
     Thalassomora Lendenfeld, 1887 accepted as Thalassomora Lendenfeld, 1887 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)
 Thalassomora Lendenfeld, 1888 accepted as Ecionemia Bowerbank, 1862 (junior synonym) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)

Thalassomyces
     Thalassomyces Niezabitowski, 1913 · Chromista (Kingdom) > Miozoa (Phylum) > Ellobiopsea (Class) > Ellobiopsida (Order) > Ellobiopsidae (Family)
 Thalassomyces Fage, 1938 accepted as Thalassomyces Niezabitowski, 1913 · Chromista (Kingdom) > Miozoa (Phylum) > Ellobiopsea (Class) > Ellobiopsida (Order) > Ellobiopsidae (Family)

Thalassophthirius
     Thalassophthirius Bartsch, 1988 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Halacaridae (Family)
     Thalassophthirius Behan-Pelletier, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Halacaridae (Family)

Thalassoplancta
 Thalassoplancta Haeckel, 1867 accepted as Thalassorhaphis Campbell, 1951 (junior homonym) · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Collodaria (Order) > Thalassosphaeridae (Family)
 Thalassoplancta Haeckel, 1862 accepted as Cannorrhaphis Haeckel, 1887 · Chromista (Kingdom) > Cercozoa (Phylum) > Thecofilosea (Class) > Eodarida (Order) > Aulacanthidae (Family)

Thalassus
 Thalassus Boie, 1833 accepted as Thalassus Boie, 1833 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Laridae (Family)
 Thalassus Oken, 1815 accepted as Thalassus Oken, 1815 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Thalenessa
 Thalenessa Baird, 1868 accepted as Sigalion Audouin & Milne Edwards in Cuvier, 1830 (subjective synonym) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Sigalionidae (Family)
 Thalenessa McIntosh, 1885 accepted as Euthalenessa Darboux, 1900 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Sigalionidae (Family)

Thalessa
     Thalessa H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
 Thalessa Holmgren, 1859 accepted as Megarhyssa Ashmead, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Thalestris
     Thalestris Claus, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Thalestridae (Family)
     Thalestris Gistl, 1868 accepted as Thalestris Gistl, 1868 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Thalestris Lindholm, 1913 accepted as Thalestris Lindholm, 1913 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
 Thalestris Rizzini, 1952 accepted as Justicia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Thalia
 Thalia Agassiz, 1862 accepted as Thalia Agassiz, 1862 (Misspelling) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Thalia Hope, 1838 accepted as Thalia Hope, 1838 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Thalia Bruguière, 1791 accepted as Thalia Bruguière, 1791 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Thalia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Marantaceae (Family)
     Thalia Blumenbach, 1798 · Animalia (Kingdom) > Chordata (Phylum) > Thaliacea (Class) > Salpida (Order) > Salpidae (Family)

Thalis
     Thalis Cuvier, 1798 accepted as Thalis Cuvier, 1798 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Thalis Lamarck, 1801 accepted as Thalis Lamarck, 1801 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Thallograptus
     Thallograptus Ruedemann, 1925 † · Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Dendroidea (Order) > Dendroidea (awaiting allocation) (Family)
 Thallograptus Öpik, 1928 † accepted as Hormograptus Öpik, 1930 † · Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Crustoidea (Order) > Hormograptidae (Family)

Thallusia
 Thallusia Hartmeyer, 1908 accepted as Phallusia Savigny, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Ascidiidae (Family)
 Thallusia Savigny, 1816 accepted as Phallusia Savigny, 1816 (Literature misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Ascidiidae (Family)

Thalpophila
     Thalpophila Borzì, 1907 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Hapalosiphonaceae (Family)
     Thalpophila Hübner, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Thalpophila Dejean, 1834 accepted as Thalpophila Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Thalpophila Solier, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Thalpophila Solier, 1835 accepted as Thalpophila Solier, 1835 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Thamnidium
     Thamnidium Link ex Wallroth in Bluff & Fingerhuth, 1833 · Fungi (Kingdom) > Zygomycota (Phylum) > Zygomycota incertae sedis (Class) > Mucorales (Order) > Mucoraceae (Family)
 Thamnidium Tuckerman ex Schwendener, 1860 accepted as Lichina C.Agardh, 1817 · Fungi (Kingdom) > Ascomycota (Phylum) > Lichinomycetes (Class) > Lichinales (Order) > Lichinaceae (Family)
 Thamnidium Thuret in Le Jolis, 1863 accepted as Rhodochorton Nägeli, 1862 '1861' · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Nemaliales (Order) > Acrochaetiaceae (Family)

Thamnites
 Thamnites Jovet-Ast & Huard, 1967 † accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Neckeraceae (Family)
     Thamnites P.F. Reinsch, 1881 † accepted as Thamnites P.F. Reinsch, 1881 † (unassessed) · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Thamnium
 Thamnium Klotzsch, 1838 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
     Thamnium W.P. Schimper in Bruch, W.P. Schimper & Gümbel, 1852 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryales (Order) > Aulacomniaceae (Family)
 Thamnium Ventenat, 1799 accepted as Roccella A.P. de Candolle in Lamarck & A.P. de Candolle, 1805 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Roccellaceae (Family)

Thamnobius
     Thamnobius Fitzinger, 1843 accepted as Thamnobius Fitzinger, 1843 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Thamnobius Schönherr, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thamnocarpus
 Thamnocarpus Kützing, 1843 accepted as Plocamium J.V.F. Lamouroux, 1813 (synonym) · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Plocamiaceae (Family)
 Thamnocarpus Harvey, 1844 accepted as Carpothamnion Kützing, 1849 (synonym) · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Ceramiaceae (Family)

Thamnocephalus
     Thamnocephalus Packard, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Sphyriidae (Family)
 Thamnocephalus Diebakate, Raibaut & Kabata, 1997 accepted as Driocephalus Raibaut, 1999 (preoccupied) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Sphyriidae (Family)

Thamnocharis
     Thamnocharis W.T. Wang, 1981 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
     Thamnocharis Sclater, 1890 accepted as Thamnocharis Sclater, 1890 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Formicariidae (Family)

Thamnonema
     Thamnonema Sollas, 1883 † accepted as Thamnonema Sollas, 1883 † (unassessed) · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
 Thamnonema Ijima, 1927 † accepted as Thamnonemiella Tabachnick & Menshenina in Hooper & Van Soest, 2002 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Amphidiscosida (Order) > Hyalonematidae (Family)

Thamnonoma
     Thamnonoma Lederer, 1853 accepted as Thamnonoma Lederer, 1853 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Thamnonoma (Tuckerman) Gyelnik, 1933 accepted as Caloplaca Th. Fries, 1860 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Teloschistaceae (Family)

Thamnophilus
     Thamnophilus Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Thamnophilidae (Family)
 Thamnophilus Schönherr, 1823 accepted as Magdalis Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thamnopora
     Thamnopora Steininger, 1831 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Tabulata (Order) > Pachyporidae (Family)
     Thamnopora Hall, 1883 accepted as Thamnopora Hall, 1883 (unassessed) · Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)

Thamnopteris
 Thamnopteris (K.B. Presl) K.B. Presl, 1851 accepted as Asplenium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Aspleniaceae (Family)
     Thamnopteris A.T. Brongniart in A.C.V.D. d'Orbigny, 1849 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Osmundales (Order) > Osmundaceae (Family)

Thamnoscelis
     Thamnoscelis Meyrick, 1928 accepted as Thamnoscelis Meyrick, 1928 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sesiidae (Family)
 Thamnoscelis Meyrick, 1935 accepted as Isothamnis Meyrick, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sesiidae (Family)

Thamnoseris
     Thamnoseris Fromentel, 1861 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Latomeandridae (Family)
     Thamnoseris F. Philippi, 1875 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Thamnus
     Thamnus Fieber, 1866 accepted as Thamnus Fieber, 1866 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Thamnus Klotzsch, 1838 accepted as Erica Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)

Thanasimus
     Thanasimus Latreille, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)
 Thanasimus Spinola in Gay, 1849 accepted as Eurymetopum Blanchard in d'Orbigny, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)

Thaparotrema
     Thaparotrema Gupta & Krishna, 1977 accepted as Thaparotrema Gupta & Krishna, 1977 (unassessed) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Monogenea (awaiting allocation) (Order) > Monogenea (awaiting allocation) (Family)
     Thaparotrema Dayal & Gupta, 1953 accepted as Thaparotrema Dayal & Gupta, 1953 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
     Thaparotrema Gupta, 1955 accepted as Thaparotrema Gupta, 1955 (unassessed) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
     Thaparotrema Gutpa & Krishna, 1982 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Mazocraeidea (Order) > Axinidae (Family)

Thapsia
     Thapsia Robineau-Desvoidy, 1863 accepted as Thapsia Robineau-Desvoidy, 1863 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Thapsia Martens, 1860 accepted as Thapsia Martens, 1860 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Thapsia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Thapsia Monterosato, 1884 accepted as Alvania Risso, 1826 (invalid: junior homonym of Thapsia Albers, 1860; Thapsiella is a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)

Thapsiella
     Thapsiella Gude, 1911 accepted as Thapsiella Gude, 1911 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Thapsiella P. Fischer, 1885 accepted as Alvania Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)

Thargelia
     Thargelia Godman & Salvin, 1900 accepted as Thargelia Godman & Salvin, 1900 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Thargelia Püngeler, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Thargelia Oestlund, 1923 accepted as Aphthargelia Hottes, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)

Tharops
     Tharops Rafinesque, 1815 accepted as Tharops Rafinesque, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Tharops Laporte, 1835 accepted as Isorhipis Boisduval & Lacordaire, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
 Tharops Hübner, 1819 accepted as Menander Hemming, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)

Tharsis
     Tharsis Giebel, 1847 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pachycormiformes (Order) > Leptolepididae (Family)
 Tharsis Jeffreys, 1883 accepted as Cirsonella Angas, 1877 (preoccupied by Tharsis Giebel, 1847 (Pisces)) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Skeneidae (Family)

Thaumalea
     Thaumalea Wagler, 1832 accepted as Thaumalea Wagler, 1832 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Thaumalea Ruthe, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Thaumaleidae (Family)
 Thaumalea Templeton, 1837 accepted as Vibilia Milne Edwards, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Vibiliidae (Family)

Thaumantias
 Thaumantias Bonaparte, 1854 accepted as Thaumantias Bonaparte, 1854 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Thaumantias Graeffe, 1860 accepted as Thaumantias Graeffe, 1860 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Thaumantias Eschscholtz, 1829 accepted as Clytia Lamouroux, 1812 (synonym) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Campanulariidae (Family)
 Thaumantias Kirby, 1894 accepted as Thaumantis Hübner, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Thaumas
     Thaumas Hübner, 1819 accepted as Thaumas Hübner, 1819 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Thaumas Münster, 1842 accepted as Thaumas Münster, 1842 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Thaumas Ehrenberg, 1832 accepted as Thaumas Ehrenberg, 1832 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Thaumasia
     Thaumasia C.A. Agardh, 1824 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Fucales (Order) > Fucaceae (Family)
     Thaumasia Perty, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pisauridae (Family)
     Thaumasia Albers, 1850 † accepted as Thaumasia Albers, 1850 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Thaumasia Westerlund, 1902 † accepted as Thaumasia Westerlund, 1902 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Thaumasta
 Thaumasta Gistel, 1848 accepted as Leucosia Weber, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Leucosiidae (Family)
 Thaumasta Staudinger in Staudinger & Wocke, 1871 accepted as Athaumasta Hampson, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Thaumastognatha
 Thaumastognatha Monod, 1926 accepted as Thaumastognathia Monod, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Gnathiidae (Family)
 Thaumastognatha Jakobi, 1954 accepted as Leptocaris Scott T., 1899 (synonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Darcythompsoniidae (Family)

Thaumastomerus
 Thaumastomerus Wollaston, 1861 accepted as Acanthinomerus Boheman, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Thaumastomerus Clark, 1865 accepted as Ajubus Aslam, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Thaumastopus
     Thaumastopus Fieber, 1870 accepted as Thaumastopus Fieber, 1870 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Thaumastopus Hartmann, 1899 accepted as Thaumastochirus Hartmann, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thaumastotherium
 Thaumastotherium Kirkaldy, 1908 accepted as Thaumastocoris Kirkaldy, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Thaumastocoridae (Family)
 Thaumastotherium Forster-Cooper, 1913 † accepted as Baluchitherium Forster-Cooper, 1913 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Rhinocerotidae (Family)

Thaumastus
     Thaumastus Stål, 1864 accepted as Thaumastus Stål, 1864 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Thaumastus Martens, 1860 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)

Thaumatocephalus
     Thaumatocephalus Heinrich, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Thaumatocephalus Nonveiller & Pavicevic, 2001 accepted as Thaumastocephalus Poggi, Nonveiller, Colla, Pavićević & Rađa, 2001 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thaumatocotyle
     Thaumatocotyle Scott, 1904 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Monocotylidea (Order) > Monocotylidae (Family)
     Thaumatocotyle Odhner, 1910 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Monocotylidea (Order) > Monocotylidae (Family)

Thaumatoessa
     Thaumatoessa Heine, 1863 accepted as Thaumatoessa Heine, 1863 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Thaumatoessa Krøyer, 1845 accepted as Thaumatohessia Giard, 1900 (synonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Monstrilloida (Order) > Monstrillidae (Family)
 Thaumatoessa Hesse, 1868 accepted as Thaumatohessia Giard, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Monstrilloida (Order) > Monstrillidae (Family)

Thaumatonema
     Thaumatonema Greville, 1863 † · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Hemiaulales (Order) > Hemiaulaceae (Family)
 Thaumatonema Lauterborn, 1896 accepted as · Chromista (Kingdom) > Cercozoa (Phylum) > Imbricatea (Class) > Thaumatomonadida (Order) > Thaumatomonadidae (Family)

Thaumatophrastus
 Thaumatophrastus Blaisdell, 1927 accepted as Thorictodes Reitter in Harold, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Thaumatophrastus Háva, 2003 accepted as Thorictodes Reitter in Harold, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Thaumatopsyllus
     Thaumatopsyllus Sars G.O., 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Thaumatopsyllidae (Family)
     Thaumatopsyllus Scott, 1894 accepted as Thaumatopsyllus Scott, 1894 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Thaumatura
 Thaumatura Schulz, 1906 accepted as Thaumasura Westwood, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
 Thaumatura Bonaparte, 1850 accepted as Thaumastura Bonaparte, 1849 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)

Thaumoglossa
 Thaumoglossa Lohse, 1979 accepted as Thaumaglossa Redtenbacher, 1867 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Thaumoglossa Chûjo & Ohbayashi, 1970 accepted as Thaumaglossa Redtenbacher, 1867 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Thaxteria
     Thaxteria P.A. Saccardo, 1891 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Coronophorales (Order) > Nitschkiaceae (Family)
 Thaxteria A. Giard, 1892 accepted as Laboulbenia Montagne & C. Robin in C. Robin, 1853 · Fungi (Kingdom) > Ascomycota (Phylum) > Laboulbeniomycetes (Class) > Laboulbeniales (Order) > Laboulbeniaceae (Family)
 Thaxteria Fenyes, 1921 accepted as Termitomorpha Wasmann, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thayeria
     Thayeria Eigenmann, 1908 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)
 Thayeria Copeland, 1906 accepted as Aglaomorpha H.W. Schott, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Polypodiaceae (Family)

Thea
     Thea Mulsant, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)
     Thea Albers, 1850 accepted as Thea Albers, 1850 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Bradybaenidae (Family)
 Thea Linnaeus, 1753 accepted as Camellia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Theaceae (Family)
 Thea Scott, 1882 accepted as Phellopsylla Taylor, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Psyllidae (Family)

Theama
     Theama Marcus, 1949 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Theamatidae (Family)
 Theama Hering, 1958 accepted as Heringiana Hayward, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)

Theano
     Theano Robineau-Desvoidy, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Theano Laporte, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)

Theca
 Theca Mulsant & Rey, 1860 accepted as Stagetus Wollaston, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
 Theca Morris in de Strzelecki, 1845 † accepted as Hyolithes Eichwald, 1840 † · Animalia (Kingdom) > Hyolitha (Phylum) > (Class) > Hyolithida (Order) > Hyolithidae (Family)

Thecacerus
     Thecacerus Lacordaire, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Thecacerus Dejean, 1834 accepted as Thecacerus Lacordaire, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Thecaphora
     Thecaphora Fingerhuth, 1836 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Urocystidiales (Order) > Glomosporiaceae (Family)
     Thecaphora Charpentier in Burmeister, 1839 accepted as Thecaphora Charpentier in Burmeister, 1839 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
 Thecaphora Lendenfeld, 1887 accepted as Thecaphora Lendenfeld, 1887 (Misspelling) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Polymastiidae (Family)
     Thecaphora Lankester, 1882 accepted as Thecaphora Lankester, 1882 · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Thecidium
 Thecidium Sowerby, 1823 accepted as Thecidea Defrance in Cuvier & Brongniart, 1822 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Thecideidae (Family)
 Thecidium Fischer de Waldheim, 1834 accepted as Thecidea Defrance in Cuvier & Brongniart, 1822 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Thecideidae (Family)

Thecocarpus
     Thecocarpus Boissier, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Thecocarpus Nutting, 1900 accepted as Lytocarpia Kirchenpauer, 1872 (synonym) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Aglaopheniidae (Family)

Thecocyathus
     Thecocyathus Milne Edwarsd & Haime, 1848 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Caryophylliidae (Family)
     Thecocyathus Vologdin, 1964 † · Animalia (Kingdom) > Problematica (Phylum) > Cribricyathea (Class) > Cribricyathea (awaiting allocation) (Order) > Cribricyathea (awaiting allocation) (Family)

Theconyx
     Theconyx Annandale, 1906 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
     Theconyx Gray, 1845 accepted as Theconyx Gray, 1845 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Thecophora
     Thecophora Rondani, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Conopidae (Family)
 Thecophora Agassiz, 1846 accepted as Thecophora Agassiz, 1846 (Unjustified (?) emendation) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
 Thecophora Lederer, 1857 accepted as Rileyiana Moucha & Chvála, 1963 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Thecophora Schmidt, 1870 accepted as Tentorium Vosmaer, 1887 (preoccupied) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Polymastiidae (Family)

Thecophyllia
     Thecophyllia Milne-Edwards & Haime, 1848 accepted as Thecophyllia Milne-Edwards & Haime, 1848 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Thecophyllia Dainelli, 1915 accepted as Meandrina Lamarck, 1801 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Meandrinidae (Family)

Thecophyllum
     Thecophyllum Fomitchev, 1953 † accepted as Thecophyllum Fomitchev, 1953 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Thecophyllum E.F. André, 1889 accepted as Guzmania Ruiz & Pavon, 1802 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)

Thedenia
 Thedenia E.M. Fries, 1842 accepted as · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Pallaviciniales (Order) > Pallaviciniaceae (Family)
 Thedenia W.P. Schimper in Bruch, W.P. Schimper & Gümbel, 1852 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Hypnaceae (Family)

Theelia
 Theelia Ludwig, 1892 accepted as Ceto Gistel, 1848 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Psolidae (Family)
     Theelia Schlumberger, 1890 † accepted as Theelia Schlumberger, 1890 † (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Theileriana
     Theileriana Monnig, 1924 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Strongylidae (Family)
 Theileriana Dias, 1963 accepted as Amblyomma Koch, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Ixodidae (Family)

Thelactis
 Thelactis Martius, 1821 accepted as Mucor Fresenius, 1850 · Fungi (Kingdom) > Zygomycota (Phylum) > Zygomycota incertae sedis (Class) > Mucorales (Order) > Mucoraceae (Family)
     Thelactis Klunzinger, 1877 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Actiniaria incertae sedis (Family)

Thelepides
     Thelepides Gravier, 1911 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)
 Thelepides Southern, 1914 accepted as Parathelepus Caullery, 1915 (junior homonym) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)

Thelia
     Thelia Amyot & Serville, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)
     Thelia Sullivant in Sullivant & Lesquereux, 1856 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Leskeaceae (Family)

Thelidomus
     Thelidomus Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)
 Thelidomus Swainson, 1840 accepted as Helicopsyche Bremi in Siebold, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Helicopsychidae (Family)

Theliostoma
     Theliostoma Sowerby, 1824 accepted as Theliostoma Sowerby, 1824 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Theliostoma Kobelt, 1878 accepted as Theliostyla Mörch, 1852 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Neritidae (Family)

Theloderma
     Theloderma Tschudi, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Rhacophoridae (Family)
 Theloderma Herrmannsen, 1849 accepted as Theliderma Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)

Thelodus
     Thelodus Agassiz in Murchison, 1839 † · Animalia (Kingdom) > Chordata (Phylum) > Pteraspidomorphi (Class) > Phlebolepidiformes (Order) > Loganelliidae (Family)
     Thelodus Schmidt, 1861 accepted as Thelodus Schmidt, 1861 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Thelodus Agassiz, 1838 † accepted as Thelodus Agassiz in Murchison, 1839 † · Animalia (Kingdom) > Chordata (Phylum) > Pteraspidomorphi (Class) > Phlebolepidiformes (Order) > Loganelliidae (Family)

Thelolepis
 Thelolepis Pander, 1856 † accepted as Thelodus Agassiz in Murchison, 1839 † · Animalia (Kingdom) > Chordata (Phylum) > Pteraspidomorphi (Class) > Phlebolepidiformes (Order) > Loganelliidae (Family)
 Thelolepis Hoppe, 1931 † accepted as Thelolepoides Fowler, 1958 † · Animalia (Kingdom) > Chordata (Phylum) > Pteraspidomorphi (Class) > Pteraspidiformes (Order) > Pteraspididae (Family)

Thelphusa
 Thelphusa Latreille, 1819 accepted as Potamon Savigny, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Potamidae (Family)
 Thelphusa Verrill, 1872 accepted as Thelepus Leuckart, 1849 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)

Thelxiope
 Thelxiope Thomson, 1864 accepted as Distenia Lepeletier & Serville, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Thelxiope Rafinesque, 1814 accepted as Homola Leach, 1816 (Name suppressed by ICZN, opinion 522) · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Homolidae (Family)

Thelyderma
 Thelyderma Agassiz, 1846 accepted as Theliderma Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
 Thelyderma Agassiz, 1846 accepted as Theloderma Tschudi, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Rhacophoridae (Family)

Thelydrias
     Thelydrias Reichenbach, 1853 accepted as Thelydrias Reichenbach, 1853 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Thelydrias Agassiz, 1846 accepted as Thylodrias Motschoulsky, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Thelypteris
     Thelypteris Schmidel, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Thelypteridaceae (Family)
 Thelypteris Adanson, 1763 accepted as Pteris Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)

Thelysia
     Thelysia Gingerich, 1982 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cimolesta (Order) > Pantolestidae (Family)
     Thelysia Salisbury ex Parlatore, 1856 accepted as Thelysia Salisbury ex Parlatore, 1856 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Themeropis
     Themeropis Pascoe, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Themeropis Koch in Koch (Keyserling), 1875 accepted as Thelcticopis Karsch, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Sparassidae (Family)

Themis
 Themis R.A. Salisbury, 1866 accepted as Triteleia Douglas ex J. Lindley, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
     Themis N.Sánchez, A.Vergés, [C.Peteiro,] J.Sutherland & J.Brodie, 2014 · Plantae (Kingdom) > Rhodophyta (Phylum) > Bangiophyceae (Class) > Bangiales (Order) > Bangiaceae (Family)

Themisia
     Themisia Velenovský, 1939 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)
     Themisia Zhdanko, 2002 accepted as Themisia Zhdanko, 2002 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)

Themisto
     Themisto Oken, 1807 accepted as Themisto Oken, 1807 (unassessed) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Themisto Guérin, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Hyperiidae (Family)
     Themisto Goodsir, 1842 accepted as (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Mysida (Order) > Mysidae (Family)
     Themisto Oken, 1815 accepted as Themisto Oken, 1815 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Thyasiridae (Family)

Themus
 Themus Schulz, 1906 accepted as Themus Schulz, 1906 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Themus Motschoulsky, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cantharidae (Family)

Theobaldia
     Theobaldia O. Heer, 1877 † accepted as Theobaldia O. Heer, 1877 † (unassessed) · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Theobaldia Neveu-Lemaire, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
 Theobaldia Fischer, 1885 accepted as Theobaldius Nevill, 1878 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Cyclophoridae (Family)

Theobroma
     Theobroma Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Theobroma Scudder, 1882 accepted as Theobroma Scudder, 1882 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Theocarpus
 Theocarpus Nutting, 1900 accepted as Thecocarpus Nutting, 1900 (misspelling) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Aglaopheniidae (Family)
 Theocarpus Broch, 1903 accepted as Thecocarpus Nutting, 1900 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Plumulariidae (Family)

Theoceras
     Theoceras Kröger, 2008 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Orthocerida (Order) > Orthoceratidae (Family)
     Theoceras Cheng, 2000 † accepted as Theoceras Cheng, 2000 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Theoclia
     Theoclia Pascoe, 1885 accepted as Theoclia Pascoe, 1885 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Theoclia Simon, 1892 accepted as Theotima Simon, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Ochyroceratidae (Family)

Theoclytes
     Theoclytes Audinet-Serville, 1838 accepted as Theoclytes Audinet-Serville, 1838 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
 Theoclytes Saussure, 1869 accepted as Phyllovates Kirby, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)
 Theoclytes Stål, 1877 accepted as Phyllovates Kirby, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)

Theodorea
 Theodorea (Cassini) Cassini in F. Cuvier, 1827 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Theodorea Barbosa Rodrigues, 1877 accepted as Rodrigueziella O. Kuntze, 1891 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Theodoria
     Theodoria Hradsky & Huttinger, 1984 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Theodoria Lehr, 1986 accepted as Theodoria Lehr, 1986 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Theodoria Fell, 1961 accepted as Ophioplinthus Lyman, 1878 (synonym) · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Ophiurida (Order) > Ophiuridae (Family)

Theone
     Theone Robineau-Desvoidy, 1863 accepted as Theone Robineau-Desvoidy, 1863 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Theone Gistl, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Theonoe
     Theonoe Simon, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
     Theonoe Philippi, 1865 accepted as Theonoe Philippi, 1865 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Theope
 Theope Moore in Horsfield & Moore, 1857 accepted as Ethope Moore, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Theope Doubleday, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)

Theora
     Theora H. Adams & A. Adams, 1856 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Semelidae (Family)
     Theora Eyferth, 1877 accepted as Theora Eyferth, 1877 (misspelling and/or junior homonym) · Animalia (Kingdom) > Rotifera (Phylum) > Rotifera incertae sedis (Class) > (Order) > (Family)

Thera
     Thera Stephens, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Thera Hutton, 1883 accepted as Aeschrodomus Pilsbry, 1892 (Invalid. Not Stephens, 1831) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)

Theraphosa
     Theraphosa Walckenaer, 1805 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theraphosidae (Family)
     Theraphosa Thorell, 1870 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Idiopidae (Family)
 Theraphosa Ausserer, 1871 accepted as Theraphosa Ausserer, 1871 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Therapon
     Therapon Parker, 1929 accepted as Therapon Parker, 1929 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Crabronidae (Family)
 Therapon Cloquet, 1819 accepted as Terapon Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Terapontidae (Family)

Therates
     Therates Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Therates Agassiz, 1846 accepted as Therates Agassiz, 1846 (Unjustified (?) emendation) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Therates Sellards, 1907 † accepted as Therates Sellards, 1907 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Ephemeroptera (awaiting allocation) (Family)

Therea
     Therea Koch, 1845 accepted as Therea Koch, 1845 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Therea Billberg, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Polyphagidae (Family)
 Therea Koch & Berendt, 1854 † accepted as Thereola Petrunkevitch, 1955 † · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Dysderidae (Family)

Theresia
     Theresia Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Theresia Spuler, 1906 accepted as Theresimima Strand, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Zygaenidae (Family)
 Theresia K.H.E. Koch, 1849 accepted as Fritillaria Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)

Theria
     Theria Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Theria Robineau-Desvoidy, 1830 accepted as Theria Robineau-Desvoidy, 1830 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)

Theridium
     Theridium Leach, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
 Theridium Ashmead, 1900 accepted as Therion Curtis, 1829-30 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Therina
     Therina Meigen, 1830 accepted as Therina Meigen, 1830 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Therina Hübner, 1826 accepted as Therina Hübner, 1826 (Unjustified (?) emendation) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Theringia
     Theringia Cossmann, 1899 † accepted as Theringia Cossmann, 1899 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Theringia Mello-Leitão, 1927 accepted as Otiothops MacLeay, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Palpimanidae (Family)
 Theringia Lahille, 1899 † accepted as Iheringiella Berg, 1898 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Clypeasteroida (Order) > Iheringiellidae (Family)

Therius
     Therius Billberg, 1820 accepted as Therius Billberg, 1820 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Therius Guérin-Ménéville, 1849 accepted as Therius Guérin-Ménéville, 1849 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Thermia
     Thermia Nuttall, 1818 accepted as Thermia Nuttall, 1818 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Thermia Hutton, 1904 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)

Thermonectus
     Thermonectus Dejean, 1837 accepted as Thermonetus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)
 Thermonectus Melsheimer, 1844 accepted as Thermonetus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Thermophila
     Thermophila Miers, 1872 accepted as Thermophila Miers, 1872 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)
     Thermophila Hübner, 1819 accepted as Thermophila Hübner, 1819 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thermophila Grassi, 1889 accepted as Thermobia Bergroth, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Zygentoma (Order) > Lepismatidae (Family)
 Thermophila Hope, 1838 accepted as Anthia Weber, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Thermopsis
     Thermopsis Külköylüoğlu, Meisch & Rust, 2003 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Cyprididae (Family)
     Thermopsis R. Brown ex W.T. Aiton, 1811 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Thermosipho
     Thermosipho Huber, Woese, Langworthy, Fricke & Stetter, 1989 · Bacteria (Kingdom) > Thermotogae (Phylum) > Thermotogae (Class) > Thermotogales (Order) > Thermotogaceae (Family)
     Thermosipho Kantor, Puillandre, Fraussen, Fedosov & Bouchet, 2013 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)

Thermus
     Thermus Brock & Freeze, 1969 (Approved Lists, 1980) · Bacteria (Kingdom) > Deinococcus-Thermus (Phylum) > Deinococci (Class) > Thermales (Order) > Thermaceae (Family)
     Thermus Distant, 1909 accepted as Thermus Distant, 1909 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Therosa
     Therosa Bonaparte, 1850 accepted as Therosa Bonaparte, 1850 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Therosa Keyserling in Koch (Keyserling), 1882 accepted as Saitis Simon, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Thersites
     Thersites Bate, 1856 accepted as Thersites Bate, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Amphipoda (awaiting allocation) (Family)
     Thersites Bate, 1857 accepted as Thersites Bate, 1857 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Amphipoda (awaiting allocation) (Family)
     Thersites Pfeiffer, 1855 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)
 Thersites Philippi, 1871 accepted as Ogcodes Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Acroceridae (Family)
 Thersites Zittel, 1882 † accepted as Thersitea Coquand, 1862 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
 Thersites Pagenstecher, 1861 accepted as Thersitina Norman, 1905 (synonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Ergasilidae (Family)

Thesilea
     Thesilea Haag-Rutenberg, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Thesilea Carter accepted as Callismilax Bates, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Thesium
     Thesium Casey, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Thesium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Santalaceae (Family)

Thespidium
     Thespidium F. von Mueller ex Bentham, 1867 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Thespidium F. von Mueller in W. Landsborough, 1862 accepted as Thespidium F. von Mueller in W. Landsborough, 1862 (Not validly published) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Thespis
     Thespis Audinet-Serville, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)
     Thespis A.P. de Candolle, 1833 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Thetaraia
     Thetaraia Jordan, 1925 accepted as Thetaraia Jordan, 1925 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Thetaraia Leigh-Sharpe, 1924 accepted as Raja Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rajidae (Family)

Thetidites
     Thetidites Mojsisovics, 1897 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)
     Thetidites Mojsisovics, 1896 † accepted as Thetidites Mojsisovics, 1897 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)

Thetis
     Thetis Goodsir, 1842 accepted as Thetis Goodsir, 1842 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Thetis Sowerby, 1826 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Mactromyidae (Family)
     Thetis Oken, 1815 accepted as Thetis Oken, 1815 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Thetis Cuvier, 1800 accepted as Thetis Cuvier, 1800 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Thetis Viator, 1838 accepted as Thetis Viator, 1838 (Unjustified (?) emendation) · Protozoa (Kingdom) > (Phylum) > (Class) > (Order) > Protozoa (awaiting allocation) (Family)
 Thetis C. B. Adams, 1845 accepted as Gouldia C. B. Adams, 1847 (invalid: junior homonym of Thetis J. de C. Sowerby, 1826) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
 Thetis Adams, 1853 accepted as Tethys Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tethydidae (Family)
 Thetis H. Adams & A. Adams, 1856 accepted as Poromya Forbes, 1844 (synonym) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pholadomyoida (Order) > Poromyidae (Family)
     Thetis de Wever, 1982 † accepted as Thetis de Wever, 1982 † (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > Sarcomastigota (awaiting allocation) (Order) > Sarcomastigota (awaiting allocation) (Family)

Thetys
     Thetys Philippi, 1836 accepted as Thetys Philippi, 1836 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Thetys Tilesius, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Thaliacea (Class) > Salpida (Order) > Salpidae (Family)
 Thetys Reichenbach, 1842 accepted as Tethys Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tethydidae (Family)

Theutis
 Theutis Bloch, 1794 accepted as Teuthis Linnaeus, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Siganidae (Family)
 Theutis Bonnaterre, 1788 accepted as Acanthurus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Siganidae (Family)

Thevetia
     Thevetia Linnaeus, 1758 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Thevetia Vellozo, 1829 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Thevetia Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Thia
 Thia Oken, 1815 accepted as Thia Oken, 1815 (Published in a rejected work (ICZN)) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Amphinomida (Order) > Amphinomidae (Family)
     Thia Leach, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Thiidae (Family)
     Thia Edwards, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Glyphipterigidae (Family)
 Thia Newman, 1840 accepted as Methia Newman, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Thianella
     Thianella Strand, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Thianella Schenkel, 1963 accepted as Tasa Wesolowska, 1981 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Thiara
     Thiara Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Thiaridae (Family)
     Thiara Menke, 1828 accepted as Thiara Menke, 1828 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Thiarella
 Thiarella Jickeli, 1883 accepted as Thiarella Jickeli, 1883 (Misspelling) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Thiarella Swainson, 1840 accepted as Thiarella Swainson, 1840 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Thiarella Sacco, 1890 † accepted as Crenisutura Cossmann, 1899 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)

Thicolia
     Thicolia Gray, 1840 accepted as Thicolia Gray, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Thicolia Leach, 1847 accepted as Thicolia Leach, 1847 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Thielea
 Thielea Tesch, 1913 accepted as Thielea Tesch, 1913 (Unjustified (?) emendation) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Thecosomata (Order) > Limacinidae (Family)
     Thielea Strebel, 1908 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Thecosomata (Order) > Limacinidae (Family)

Thihumerozetes
     Thihumerozetes Sellnick, 1959 accepted as Thihumerozetes Sellnick, 1959 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Acari (awaiting allocation) (Order) > Acari (awaiting allocation) (Family)
 Thihumerozetes Zoological Record, 1959 accepted as Trihumerozetes Sellnick, 1959 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Ceratozetidae (Family)

Thilmanus
     Thilmanus Baudi, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Omalisidae (Family)
     Thilmanus Gemminger in Gemminger & Harold, 1869 accepted as Thilmanus Baudi, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Omalisidae (Family)

Thimna
     Thimna Giebel, 1856 accepted as Thimna Giebel, 1856 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Thimna Bergh, 1905 accepted as Thimna Bergh, 1905 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Thinaecia
 Thinaecia Mulsant & Rey, 1874 accepted as Hydrosmecta Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thinaecia Mulsant & Rey, 1873 accepted as Hydrosmecta Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thinobius
     Thinobius Kiesenwetter, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Thinobius Walker accepted as Thinobius Walker (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Thinophilus
     Thinophilus Wahlberg, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
 Thinophilus Rey, 1879 accepted as Thinobius Kiesenwetter, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thinotherium
     Thinotherium Cope, 1870 † accepted as Thinotherium Cope, 1870 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Tayassuidae (Family)
     Thinotherium Marsh, 1872 † accepted as Thinotherium Marsh, 1872 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Helohyidae (Family)

Thiodia
     Thiodia Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Thiodia J.J. Bennett in J.J. Bennett & R. Brown, 1840 accepted as Thiodia J.J. Bennett in J.J. Bennett & R. Brown, 1840 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Thiosphaera
 Thiosphaera Robertson & Kuenen, 1984 accepted as Paracoccus Davis, 1969 (Approved Lists, 1980) · Bacteria (Kingdom) > Proteobacteria (Phylum) > Alphaproteobacteria (Class) > Rhodobacterales (Order) > Rhodobacteraceae (Family)
 Thiosphaera Miyoshi, 1897 accepted as Thiocystis Winogradsky, 1888 (Approved Lists, 1980) (No current standing in Prokaryotic nomenclature) · Bacteria (Kingdom) > Proteobacteria (Phylum) > Gammaproteobacteria (Class) > Chromatiales (Order) > Chromatiaceae (Family)

Thisbe
     Thisbe Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)
 Thisbe Agassiz, 1846 accepted as Colasposoma Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Thlaspidium
 Thlaspidium P. Miller, 1754 accepted as Biscutella Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Thlaspidium (V.I. Lipsky) M.R. Rassulova, 1978 accepted as Astragalus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Thlaspidium Bubani, 1901 accepted as Thlaspi Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Thlipsurina
     Thlipsurina Bassler, 1941 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Metacopida (Order) > Metacopida (awaiting allocation) (Family)
 Thlipsurina Kummerow, 1953 † accepted as Krausellina Krandijevsky, 1968 † (junior homonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda incertae sedis (Family)

Thoa
     Thoa Aublet, 1775 accepted as Thoa Aublet, 1775 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Gnetopsida (Class) > Gnetales (Order) > Gnetaceae (Family)
     Thoa Takagi, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
 Thoa Lamouroux, 1816 accepted as Halecium Oken, 1815 (synonym) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Haleciidae (Family)
 Thoa Johnston, 1816 accepted as Halecium Oken, 1815 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Haleciidae (Family)

Thoe
 Thoe Kinberg, 1866 accepted as Syllis Savigny in Lamarck, 1818 (subjective synonym) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Syllidae (Family)
     Thoe Chun, 1879 · Animalia (Kingdom) > Ctenophora (Phylum) > Tentaculata (Class) > Cydippida (Order) > Cydippida incertae sedis (Family)
 Thoe Wright, 1859 accepted as Actinothoe Fischer, 1889 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Sagartiidae (Family)
     Thoe Bell, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Mithracidae (Family)

Tholaraspis
     Tholaraspis Hupé, 1953 † accepted as Tholaraspis Hupé, 1953 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Tholaraspis Hupé in Piveteau, 1953 † accepted as Tholaraspis Hupé in Piveteau, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Tholaster
     Tholaster Seunes, 1891 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Holasteroida (Order) > Stegasteridae (Family)
 Tholaster Spencer, 1913 † accepted as Tholaster Spencer, 1913 † · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Asteroidea (awaiting allocation) (Order) > Asteroidea (awaiting allocation) (Family)

Tholostoma
     Tholostoma Iredale, 1958 accepted as Tholostoma Iredale, 1958 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Turbinidae (Family)
     Tholostoma Laseron, 1958 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Skeneidae (Family)

Tholus
     Tholus Lesson, 1837 accepted as Tholus Lesson, 1837 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Tholus Strebel, 1909 accepted as Tholus Strebel, 1909 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)
     Tholus Pegel in Gintsinger, Fefelov, Vinkman, Tarnovsky, Zhuravleva & Pegel, 1986 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)

Thomasella
     Thomasella Fredericks, 1928 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Overtoniidae (Family)
 Thomasella Paul, 1942 † accepted as Argentiproductus Cooper & Muir-Wood, 1951 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productellidae (Family)
     Thomasella Santos-Silva, Bezark & Martins, 2012 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Thomasella Sirel, 1998 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Loftusiida (Order) > Spirocyclinidae (Family)

Thomasia
     Thomasia Lambert, 1918 accepted as Thomasia Lambert, 1918 (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Thomasia Pagliano & Scaramozzino, 1989 accepted as Thomasia Pagliano & Scaramozzino, 1989 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Thomasia Poche, 1908 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Multituberculata (Order) > Haramiyidae (Family)
     Thomasia J. Gay, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Thomasia Rübsaamen, 1910 accepted as Thomasiniana Strand, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
 Thomasia Wilson, 1910 accepted as Thomasiniellula Strand, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
 Thomasia Fredericks, 1928 † accepted as Argentiproductus Cooper & Muir-Wood, 1951 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Leioproductidae (Family)

Thomasina
     Thomasina Newstead & Carter, 1911 accepted as Thomasina Newstead & Carter, 1911 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
 Thomasina Paeckelmann, 1931 † accepted as Argentiproductus Cooper & Muir-Wood, 1951 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Leioproductidae (Family)
 Thomasina Bigot, 1927 † accepted as Tomasina Hall & Clarke, 1892 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Obolidae (Family)

Thomassetia
     Thomassetia Théry, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Thomassetia Hemsley, 1902 accepted as Brexia Noronha ex L.M.A.A. Du Petit-Thouars, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Thomastus
     Thomastus Öpik, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Illaenidae (Family)
 Thomastus Jousseaume, 1887 accepted as Thaumastus Martens, 1860 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)

Thompsonella
     Thompsonella N.L. Britton & J.N. Rose, 1909 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)
     Thompsonella Skinner & Wilde, 1965 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Fusulinidae (Family)

Thompsonia
     Thompsonia Kossmann, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Akentrogonida (Order) > Thompsoniidae (Family)
 Thompsonia Pilsbry, 1888 accepted as Thompsonia Pilsbry, 1888 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Thompsonia R. Brown, 1821 accepted as Deidamia Du Petit-Thouars, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Passifloraceae (Family)
 Thompsonia Uchida, 1953 accepted as Philoceanus Kellogg, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Philopteridae (Family)

Thompsoniella
     Thompsoniella Guimarães, 1977 † accepted as Thompsoniella Guimarães, 1977 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Thompsoniella Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thomsenia
     Thomsenia Panning, 1924 accepted as Thomsenia Panning, 1924 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Thomsenia Strebel, 1910 accepted as Thomsenia Strebel, 1910 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Thomsonia
 Thomsonia K. Mädler, 1954 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Thomsonia Konow, 1884 accepted as Thomsonia Konow, 1884 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Thomsonia Ancey, 1886 accepted as Thomsonia Ancey, 1886 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Thomsonia Jackson, 1916 † accepted as Coptothyris Jackson, 1918 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Laqueidae (Family)
 Thomsonia Signoret, 1879 accepted as Hecalus Stål, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Thomsonia Wallich, 1830 accepted as Amorphophallus Blume ex Decaisne, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)

Thomsoniella
     Thomsoniella Mercet, 1921 accepted as Thomsoniella Mercet, 1921 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Thomsoniella Signoret, 1880 accepted as Hecalus Stål, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Thonia
     Thonia Stockmans & Willière, 1955 † accepted as Thonia Stockmans & Willière, 1955 † (unassessed) · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
 Thonia Halik, 1941 accepted as Hygrobates Koch in Panzer, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Hygrobatidae (Family)

Thonius
     Thonius Lacordaire, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
 Thonius Lehtinen, 1981 accepted as Hammenius Lehtinen, 1981 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Holothyrida (Order) > Holothyridae (Family)

Thoosa
     Thoosa Hancock, 1849 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Thoosidae (Family)
 Thoosa Kinberg, 1865 accepted as Nereis Linnaeus, 1758 (homonym, subjective synonym) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Nereididae (Family)

Thopeutica
     Thopeutica Schaum, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Thopeutica Rivalier, 1961 accepted as Thopeutica Schaum, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Thoracites
     Thoracites Brauer & Bergenstamm, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Rhiniidae (Family)
 Thoracites Thorell, 1898 accepted as Thorellina Berg, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)

Thoracodonia
 Thoracodonia Cameron, 1950 accepted as Zyras Stephens, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thoracodonia Bernhauer, 1928 accepted as Zyras Stephens, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thoracophorus
     Thoracophorus Motschulsky, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thoracophorus Erichson, 1840 accepted as Thoracophorus Erichson, 1840 (Unjustified (?) emendation) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thoracophorus Hope, 1840 accepted as Cardiothorax Motschoulsky, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Thoracophorus Gemminger & Harold, 1868 accepted as Thoracophorus Motschulsky, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thoracophorus Gervais & Ameghino, 1880 † accepted as Neothoracophorus Ameghino, 1889 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cingulata (Order) > Glyptodontidae (Family)

Thoracosphaera
 Thoracosphaera Krichagin, 1873 accepted as Metis Philippi, 1843 (synonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Metidae (Family)
     Thoracosphaera Kamptner, 1927 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Thoracosphaeraceae (Family)

Thoralicystis
     Thoralicystis Chauvel, 1978 † · Animalia (Kingdom) > Echinodermata (Phylum) > Stylophora (Class) > Cornuta (Order) > Cornuta (awaiting allocation) (Family)
     Thoralicystis Chauvel, 1971 † accepted as Thoralicystis Chauvel, 1971 † (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Ophiuroidea (awaiting allocation) (Order) > Ophiuroidea (awaiting allocation) (Family)

Thore
     Thore Koch, 1850 accepted as Thore Koch, 1850 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Thore Selys, 1853 accepted as Polythore Calvert, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Polythoridae (Family)

Thorea
     Thorea Bory de Saint-Vincent, 1808 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Nemaliales (Order) > Thoreaceae (Family)
 Thorea J. Briquet, 1902 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Thorea Rouy, 1913 accepted as Arrhenatherum Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Thorectes
     Thorectes Mulsant, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Geotrupidae (Family)
 Thorectes Agassiz, 1846 accepted as Neusticurus Duméril & Bibron, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gymnophthalmidae (Family)

Thorectus
 Thorectus Agassiz, 1846 accepted as Thorectes Mulsant, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Geotrupidae (Family)
 Thorectus Agassiz, 1846 accepted as Thorictus Germar, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Thorelia
 Thorelia H.F. Hance, 1877 accepted as Thorelia H.F. Hance, 1877 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Thorelia Gagnepain, 1920 accepted as Vernonia Schreber, 1791 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Thorella
     Thorella Bruce, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Hippolytidae (Family)
 Thorella J. Briquet, 1914 accepted as Caropsis (G. Rouy & E.-G. Camus) S. Rauschert, 1982 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Thorella B. Gaillon, 1883 accepted as Thorea Bory de Saint-Vincent, 1808 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Nemaliales (Order) > Thoreaceae (Family)

Thorellia
     Thorellia Koch in Koch (Keyserling), 1882 accepted as Thorellia Koch in Koch (Keyserling), 1882 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Thorellia Keyserling, 1882 accepted as Thorelliola Strand, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Thorellia Boeck, 1865 accepted as Euryte Philippi, 1843 (synonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Cyclopidae (Family)

Thoria
     Thoria Zacharda, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Rhagidiidae (Family)
     Thoria Stål, 1864 accepted as Thoria Stål, 1864 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Thorictes
 Thorictes Krizhanovskiy, 1965 accepted as Thorictus Germar, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Thorictes accepted as Neusticurus Duméril & Bibron, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gymnophthalmidae (Family)

Thorina
     Thorina Stephensen, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Caprellidae (Family)
 Thorina Bruce, 1997 accepted as Thinora Bruce, 1998 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Hippolytidae (Family)

Thornburghiella
     Thornburghiella Vaillant, 1973 accepted as Thornburghiella Vaillant, 1973 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)
     Thornburghiella Vaillant, 1982 accepted as Thornburghiella Vaillant, 1982 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)

Thouarsia
 Thouarsia É.P. Ventenat ex A.P. de Candolle, 1836 accepted as Psiadia N.J. Jacquin ex Willdenow, 1803 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Thouarsia O. Post & C.E.O. Kuntze, 1903 accepted as Thuarea Persoon, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Thouinia
     Thouinia Poiteau, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
 Thouinia J.E. Smith, 1789 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Convolvulaceae (Family)
 Thouinia Thunberg ex Linnaeus f., 1782 accepted as Chionanthus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Oleaceae (Family)

Thous
     Thous Smith, 1839 accepted as Thous Smith, 1839 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Thous Gray, 1869 accepted as Cerdocyon Smith, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Canidae (Family)

Thozetia
     Thozetia F. von Mueller ex Bentham, 1868 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Thozetia M.J. Berkeley & F . von Mueller in M.J. Berkeley, 1881 accepted as Thozetella O. Kuntze, 1891 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Chaetosphaeriales (Order) > Chaetosphaeriaceae (Family)

Thracia
     Thracia Leach in Sowerby, 1823 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Thraciidae (Family)
     Thracia Blainville, 1824 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Thraciidae (Family)
 Thracia Westwood, 1840 accepted as Zoraida Kirkaldy, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Derbidae (Family)

Thrasychiroides
     Thrasychiroides Soares & Soares, 1947 accepted as Thrasychiroides Soares & Soares, 1947 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Thrasychiroides Soares & Soares, 1947 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Neopilionidae (Family)
 Thrasychiroides Schenkel, 1963 accepted as Schenkeliobunum Starega, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Sclerosomatidae (Family)

Thraustocolus
     Thraustocolus Kraatz, 1865 accepted as Thraustocolus Kraatz, 1865 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Thraustocolus Wollaston, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Threnetes
     Threnetes Gould, 1852 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)
     Threnetes Roberts, 1922 accepted as Threnetes Roberts, 1922 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Sylviidae (Family)

Threnetica
     Threnetica Thomson, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Threnetica Gemminger & Harold, 1873 accepted as Trenetica Thomson, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Threnodes
     Threnodes Duponchel, 1845 accepted as Threnodes Duponchel, 1845 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Threnodes Hewitson, 1870 accepted as Threnodes Hewitson, 1870 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)

Threticus
     Threticus Eaton, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)
 Threticus Portevin, 1935 accepted as Orchestes Illiger in Kugelann, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thrichidryas
     Thrichidryas Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thrichidryas Bierig, 1939 accepted as Thrichidryas Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thrichiota
 Thrichiota Mulsant & Rey, 1874 accepted as Atheta Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thrichiota Mulsant & Rey, 1873 accepted as Atheta Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thrinacodus
     Thrinacodus St. John & Worthen, 1875 † accepted as Thrinacodus St. John & Worthen, 1875 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Thrinacodus Günther, 1879 accepted as Olallamys Emmons, 1988 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Echimyidae (Family)

Thrinax
     Thrinax O. Swartz, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
     Thrinax Konow, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)
     Thrinax Pfeil, 1983 † · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Hexanchiformes (Order) > Chlamydoselachidae (Family)

Thriptera
     Thriptera Gistl, 1848 accepted as Thriptera Gistl, 1848 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Thriptera Solier, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Thrissa
     Thrissa Cuvier, 1816 accepted as Thrissa Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Clupeiformes (Order) > Engraulidae (Family)
 Thrissa Rafinesque, 1815 accepted as Clupanodon Lacepède, 1803 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Clupeiformes (Order) > Clupeidae (Family)

Thrissopteroides
     Thrissopteroides Woodward, 1898 accepted as Thrissopteroides Woodward, 1898 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Thrissopteroides Marck, 1873 † accepted as Thrissopteroides Marck, 1873 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Thrixa
     Thrixa Dulac, 1867 accepted as Thrixa Dulac, 1867 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Thrixa Pandellé, 1894 accepted as Trixa Meigen, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Thrombidium
 Thrombidium Gerstaecker in Decken, 1873 accepted as Trombidium Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombidiidae (Family)
 Thrombidium Oudemans, 1909 accepted as Trombidium Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombidiidae (Family)

Thrombus
     Thrombus Oudemans, 1903 accepted as Thrombus Oudemans, 1903 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Thrombus Sollas, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Thrombidae (Family)

Thryallis
     Thryallis C.F.P. Martius, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)
     Thryallis Linnavuori, 1973 accepted as Thryallis Linnavuori, 1973 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coreidae (Family)
     Thryallis Thomson, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Thryallis Linnaeus, 1762 accepted as Galphimia Cavanilles, 1799 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)

Thryasona
     Thryasona B. J. Smith & Kershaw, 1985 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)
     Thryasona Iredale, 1933 accepted as Thryasona B. J. Smith & Kershaw, 1985 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)

Thryptocerus
     Thryptocerus Chaudoir, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Thryptocerus Kuwert, 1896 accepted as Passalus Fabricius, 1792 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Passalidae (Family)

Thulinia
     Thulinia Gibson & Bray, 1979 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Diplostomida (Order) > Lecithasteridae (Family)
     Thulinia P.J. Cribb in P.J. Cribb & J. Stewart, 1985 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Thulinia Bertolani, 1981 accepted as Thulinius R. Bertolani, 2003 (pre-occupied) · Animalia (Kingdom) > Tardigrada (Phylum) > Eutardigrada (Class) > Parachela (Order) > Hypsibiidae (Family)

Thunbergia
     Thunbergia Horváth, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)
     Thunbergia Retzius, 1780 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Thunbergia Montin, 1773 accepted as Gardenia J. Ellis, 1761 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Thuraria
     Thuraria Molina, 1782 accepted as Thuraria Molina, 1782 (unassessed) · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae incertae sedis (Family)
 Thuraria Anonymous, 1813 accepted as Thuraria Anonymous, 1813 (Not validly published) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Thurberia
 Thurberia A. Gray, 1854 accepted as Gossypium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Thurberia Bentham, 1881 accepted as Limnodea L.H. Dewey in J.M. Coulter, 1894 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Thurmannia
     Thurmannia Heer in Heer & Escher, 1852 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera incertae sedis (Family)
 Thurmannia Hyatt in Eastman-Zittel, 1900 † accepted as Thurmanniceras Cossmann, 1901 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Neocomitidae (Family)

Thurstonia
     Thurstonia de Puytorac, 1968 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Hysterocinetidae (Family)
     Thurstonia Whalen & Carter, 1998 † accepted as Thurstonia Whalen & Carter, 1998 † (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > Sarcomastigota (awaiting allocation) (Order) > Sarcomastigota (awaiting allocation) (Family)

Thwaitesia
     Thwaitesia Cambridge, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
     Thwaitesia Montagne, 1845 accepted as Thwaitesia Montagne, 1845 (unassessed) · Plantae (Kingdom) > Charophyta (Phylum) > Conjugatophyceae (Class) > Zygnematales (Order) > Zygnemataceae (Family)

Thya
     Thya Adanson, 1763 accepted as Thya Adanson, 1763 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinales (Order) > Cupressaceae (Family)
 Thya Simon, 1876 accepted as Thyene Simon, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Thya Curtis, 1834 accepted as Thya Curtis, 1834 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Beraeidae (Family)

Thyana
     Thyana Dognin, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
 Thyana W. Hamilton, 1825 accepted as Thouinia Poiteau, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)

Thyas
     Thyas Hübner, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Thyas Koch in Panzer, 1837 accepted as Acerbitas Özdikmen, 2006 (junior homonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Hydryphantidae (Family)
 Thyas Gray, 1857 accepted as Arca Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)

Thyatira
     Thyatira Ochsenheimer, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Thyatiridae (Family)
 Thyatira Jeffreys, 1839 accepted as Thyasira Lamarck, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Thyasiridae (Family)

Thyca
     Thyca H. Adams & A. Adams, 1854 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Eulimidae (Family)
 Thyca Wallengren, 1858 accepted as Delias Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)

Thyelia
 Thyelia Walker, 1865 accepted as Thyelia Walker, 1865 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Thyelia Koch, 1845 accepted as Thyelia Koch, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Thyelia Berendt, 1845 accepted as Thyelia Berendt, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Thyelia Menge in Berendt, 1854 accepted as Thyelia Menge in Berendt, 1854 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Thyella
     Thyella Robineau-Desvoidy, 1863 accepted as Thyella Robineau-Desvoidy, 1863 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Thyella Wallengren, 1858 accepted as Thyella Wallengren, 1858 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thyella Rafinesque, 1838 accepted as Jacquemontia J.D. Choisy, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Convolvulaceae (Family)
 Thyella H. Adams, 1866 † accepted as Thyellisca H. E. Vokes, 1956 (invalid: Invalid: junior homonym of Thyella Wallengren, 1858 [Lepidoptera] and Thyella Robineau-Desvoidy, 1863 [Diptera]; Thyellisca is a replacement name.) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Semelidae (Family)

Thyellina
     Thyellina Münster in Agassiz, 1838 † accepted as Thyellina Münster in Agassiz, 1838 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Thyellina Mesnil, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Thyestes
     Thyestes Eichwald, 1859 † · Animalia (Kingdom) > Chordata (Phylum) > Cephalaspidomorphi (Class) > Cephalaspidiformes (Order) > Cephalaspididae (Family)
 Thyestes Thomson, 1864 accepted as Thyestilla Aurivillius, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Thylacis
 Thylacis Gagnepain, 1932 accepted as Thrixspermum Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Thylacis Illiger, 1811 accepted as Perameles Geoffroy, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Peramelemorphia (Order) > Peramelidae (Family)
 Thylacis Haltenorth, 1958 accepted as Isoodon Geoffroy in Desmarest, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Peramelemorphia (Order) > Peramelidae (Family)

Thylacites
     Thylacites Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Thylacites Schoenherr, 1826 accepted as Cycloderes Schönherr in Sahlberg, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thylacium
     Thylacium Ehrenberg, 1841 † accepted as Thylacium Ehrenberg, 1841 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Thylacium Carus, 1850 accepted as Stolonica Lacaze-Duthiers & Délage, 1892 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Styelidae (Family)
 Thylacium Alder & Hancock, 1907 accepted as Stolonica Lacaze-Duthiers & Délage, 1892 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Styelidae (Family)

Thylacodes
     Thylacodes Trouessart, 1905 accepted as Thylacodes Trouessart, 1905 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Thylacodes Agassiz, 1846 accepted as Thylacodes Agassiz, 1846 (Unjustified (?) emendation) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)
     Thylacodes Guettard, 1770 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)

Thylacodus
 Thylacodus Marschall, 1873 accepted as Thylacodus Marschall, 1873 (Unjustified (?) emendation) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)
 Thylacodus Mörch, 1860 accepted as Petaloconchus Lea, 1843 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)

Thylacomys
 Thylacomys Blyth in Cuvier, 1840 accepted as Macrotis Reid, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Peramelina (Order) > Thylacomyidae (Family)
     Thylacomys Owen, 1838 accepted as Macrotis Reid, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Peramelina (Order) > Thylacomyidae (Family)
 Thylacomys Waite, 1898 accepted as Notomys Lesson, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)

Thylacophora
     Thylacophora Ragonot, 1891 accepted as Thylacophora Ragonot, 1891 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thylacophora Ridley, 1916 accepted as Riedelia D. Oliver, 1883 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)

Thylacosternus
     Thylacosternus Bonvouloir, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
 Thylacosternus Fairmaire, 1881 accepted as Bibliothecarius Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thylacotherium
     Thylacotherium Valenciennes, 1838 † accepted as Thylacotherium Valenciennes, 1838 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Amphitheriida (Order) > Amphitheriidae (Family)
     Thylacotherium Lund, 1839 † accepted as Didelphis Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Didelphimorphia (Order) > Didelphidae (Family)
 Thylacotherium Lund, 1839 † accepted as Didelphis Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Didelphimorphia (Order) > Didelphidae (Family)

Thylax
     Thylax Rafinesque, 1830 accepted as Thylax Rafinesque, 1830 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Thylax Oken, 1816 accepted as Perameles Geoffroy, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Peramelemorphia (Order) > Peramelidae (Family)
 Thylax B. Renault, 1896 † accepted as · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Thylax Hagen, 1866 accepted as Thylax Hagen, 1866 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Lepidopsocidae (Family)

Thymallus
     Thymallus Linck, 1790 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Salmoniformes (Order) > Salmonidae (Family)
 Thymallus Cuvier, 1829 accepted as Thymallus Linck, 1790 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Salmoniformes (Order) > Salmonidae (Family)

Thymalops
     Thymalops Fennah, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Delphacidae (Family)
 Thymalops Iablokoff-Khnzorian, 1962 accepted as Thymalus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)

Thymalus
     Thymalus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)
 Thymalus accepted as Thymallus Linck, 1790 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Salmoniformes (Order) > Salmonidae (Family)
 Thymalus sensu Duftschmid, 1825 accepted as Thymalus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)

Thymbra
     Thymbra Melichar, 1915 accepted as Thymbra Melichar, 1915 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)
     Thymbra Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Thymbra P. Miller, 1754 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Thymelaea
     Thymelaea P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Thymelaeaceae (Family)
 Thymelaea Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Thymelaeaceae (Family)

Thymele
 Thymele Agassiz, 1846 accepted as Thymele Agassiz, 1846 (Unjustified (?) emendation) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thymele Fabricius, 1807 accepted as Trimeria Saussure, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)

Thymoites
 Thymoites Günther, 1939 accepted as Moluccasia Rehn, 1948 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)
     Thymoites Keyserling, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)

Thymopsis
     Thymopsis Holthuis, 1974 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Nephropidae (Family)
     Thymopsis Bentham in Bentham & J.D. Hooker, 1873 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Thymopsis Jaubert & Spach, 1842 accepted as Thymopsis Jaubert & Spach, 1842 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)

Thymus
     Thymus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Thymus Girault, 1916 accepted as Thymus Girault, 1916 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)

Thynnichthys
     Thynnichthys Bleeker, 1859 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Thynnichthys Giglioli, 1880 accepted as Euthynnus Lütken in Jordan & Gilbert, 1883 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Scombridae (Family)

Thynnus
     Thynnus Fabricius, 1775 accepted as Thynnus Fabricius, 1775 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tiphiidae (Family)
     Thynnus Browne, 1789 accepted as Thynnus Browne, 1789 (Not available, name published in a rejected work; on Official Index (Opinion 89)) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Scombridae (Family)
 Thynnus Gronow in Gray, 1854 accepted as Scomberoides Lacepède, 1801 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
 Thynnus Cuvier, 1816 accepted as Thunnus South, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Scombridae (Family)

Thyone
     Thyone Oken, 1815 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Phyllophoridae (Family)
 Thyone Jaeger, 1833 accepted as Thyone Oken, 1815 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Phyllophoridae (Family)
 Thyone Philippi, 1840 accepted as Porcellidium Claus, 1860 (synonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Porcellidiidae (Family)
 Thyone Walker, 1854 accepted as Euthyone Watson in Watson, Fletcher & Nye, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Arctiidae (Family)
 Thyone Meyrick, 1883 accepted as Asaphodes Meyrick, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Thyra
     Thyra Lefèvre, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Thyra Dejean, 1835 accepted as Thyra Lefèvre, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Thyreodonta
 Thyreodonta Marschall, 1873 accepted as Stratiomys Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
 Thyreodonta Bezzi in Becker-Kertész, 1903 accepted as Stratiomys Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)

Thyreomorpha
     Thyreomorpha Dejean, 1835 accepted as Notosacantha Chevrolat in Dejean, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Thyreomorpha Boheman, 1850 accepted as Notosacantha Chevrolat in Dejean, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Thyreosoma
 Thyreosoma Chevrolat, 1864 accepted as Discoloma Erichson, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Discolomatidae (Family)
     Thyreosoma Dejean, 1833 accepted as Discoloma Erichson, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Discolomatidae (Family)

Thyreus
     Thyreus Panzer, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
     Thyreus Swainson, 1821 accepted as Thyreus Swainson, 1821 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Thyreus Lepeletier & Brullé, 1835 accepted as Thyreus Lepeletier & Brullé, 1835 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphegidae (Family)
 Thyreus Philippi, 1844 accepted as Pedicularia Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ovulidae (Family)

Thyridia
     Thyridia Hübner, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Thyridia W.R. Barker & P.M. Beardsley in W.R. Barker, G.L. Nesom, P.M. Beardsley & N.S. Fraga, 2012 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Phrymaceae (Family)

Thyridium
     Thyridium Nitschke, 1867 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariomycetidae incertae sedis (Order) > Thyridiaceae (Family)
     Thyridium Burmeister, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Thyridium Mitten, 1868 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Calymperaceae (Family)
 Thyridium Schrammen, 1936 † accepted as Thyroidium de Laubenfels in Moore, 1955 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinosida (Order) > Craticulariidae (Family)
     Thyridium Dejean, 1833 accepted as Thyridium Burmeister, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Thyridium Fuckel, 1870 accepted as Thyridium Nitschke, 1867 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariomycetidae incertae sedis (Order) > Thyridiaceae (Family)

Thyrina
     Thyrina Poujade, 1886 accepted as Thyrina Poujade, 1886 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thyrina Jordan & Culver in Jordan, 1895 accepted as Atherinella Steindachner, 1875 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Atheriniformes (Order) > Atherinopsidae (Family)

Thyris
     Thyris Laspeyres, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Thyrididae (Family)
 Thyris Goode, 1880 accepted as Monolene Goode, 1880 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Bothidae (Family)

Thyrospora
     Thyrospora Kirschstein, 1938 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideales (Order) > Dothideales incertae sedis (Family)
 Thyrospora L.R. Tehon & E.Y. Daniels, 1925 accepted as Stemphylium Wallroth, 1833 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Pleosporaceae (Family)

Thyrostromella
     Thyrostromella Höhnel in Weese, 1929 accepted as Thyrostromella Höhnel in Weese, 1929 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Dematiaceae (Family)
     Thyrostromella von Höhnel, 1919 accepted as Thyrostromella von Höhnel, 1919 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Thyrostromella H. Sydow in H. Sydow & F. Petrak, 1924 accepted as Thyrostroma F. von Höhnel, 1911 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Botryosphaeriales (Order) > Botryosphaeriaceae (Family)

Thyrsacanthus
     Thyrsacanthus S. Moricand, 1847 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Thyrsacanthus C.G.D. Nees in C.F.P. Martius, 1847 accepted as Odontonema C.G.D. Nees, 1842 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Thyrsanthus
     Thyrsanthus Schrank, 1814 accepted as Thyrsanthus Schrank, 1814 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)
 Thyrsanthus Bentham, 1841 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Thyrsanthus S. Elliott, 1818 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Thyrsia
     Thyrsia Dalman, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Thyrsia Stapf in Prain, 1917 accepted as Phacelurus Grisebach, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Thyrsidium
     Thyrsidium Cope, 1874 † accepted as Thyrsidium Cope, 1874 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Thyrsidium Montagne in Durieu, 1846-1849 accepted as Cheirospora Mougeot & E.M. Fries, 1825 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Thyrsites
     Thyrsites Lesson, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gempylidae (Family)
 Thyrsites Cuvier in Cuvier & Valenciennes, 1832 accepted as Thyrsites Lesson, 1831 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gempylidae (Family)

Thyrsocera
     Thyrsocera Burmeister, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blattidae (Family)
 Thyrsocera Saussure, 1864 accepted as Pseudomops Audinet-Serville, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blattellidae (Family)

Thysanella
 Thysanella R.A. Salisbury, 1866 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
 Thysanella A. Gray, 1845 accepted as Polygonella A. Michaux, 1803 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Polygonaceae (Family)

Thysania
     Thysania Simon, 1910 accepted as Thysania Simon, 1910 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Corinnidae (Family)
     Thysania Dalman, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Thysanochilus
     Thysanochilus Butler, 1878 accepted as Thysanochilus Butler, 1878 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thysanochilus Philippi, 1857 accepted as Geotria Gray, 1851 · Animalia (Kingdom) > Chordata (Phylum) > Cephalaspidomorphi (Class) > Petromyzontiformes (Order) > Petromyzontidae (Family)
 Thysanochilus Philippi, 1857 accepted as Geotria Gray, 1851 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Chimaeriformes (Order) > Geotriidae (Family)
 Thysanochilus H. Falconer, 1839 accepted as Eulophia R. Brown, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Thysanodes
     Thysanodes Rambur, 1870 accepted as Thysanodes Rambur, 1870 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thysanodes Newman, 1842 accepted as Sthenias Laporte, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Thysanophora
     Thysanophora W.B. Kendrick, 1961 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Eurotiales (Order) > Trichocomaceae (Family)
     Thysanophora Strebel & Pfeffer, 1880 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Thysanophoridae (Family)

Thysanoplana
 Thysanoplana Plehn, 1896 accepted as Acanthozoon Collingwood, 1876 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Pseudocerotidae (Family)
 Thysanoplana Graff, 1912-17 † accepted as Papilloplana Kenk, 1974 † · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Tricladida (Order) > Dendrocoelidae (Family)

Thysanopoda
     Thysanopoda Latreille, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Euphausiacea (Order) > Euphausiidae (Family)
     Thysanopoda Milne Edwards, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Euphausiacea (Order) > Euphausiidae (Family)

Thysanota
     Thysanota Stichel, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)
     Thysanota Albers, 1860 accepted as Thysanota Albers, 1860 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)

Thysanotus
     Thysanotus Chaudoir, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Thysanotus R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
 Thysanotus Koliha, 1926 † accepted as Thysanotos Mickwitz, 1896 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Obolidae (Family)

Thysanus
     Thysanus Duncan, 1863 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Trachyphylliidae (Family)
     Thysanus Walker, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Signiphoridae (Family)
 Thysanus Loureiro, 1790 accepted as Cnestis A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Connaraceae (Family)

Thysbe
 Thysbe Thomson, 1858 accepted as Colasposoma Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Thysbe Dejean, 1835 accepted as Colasposoma Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Thysdrus
     Thysdrus Stål, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Thysdrus Fairmaire, 1899 accepted as Thysdarius Fairmaire, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thysia
 Thysia Loiselle & Welcomme, 1972 accepted as Thysochromis Daget, 1988 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cichlidae (Family)
 Thysia Thomson, 1860 accepted as Diastocera Thomson, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tianella
     Tianella Attems, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Entomobielziidae (Family)
     Tianella Bugrova, 2003 † accepted as Tianella Bugrova, 2003 † (unassessed) · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Oligotrichida (Order) > Oligotrichida (awaiting allocation) (Family)

Tianshanella
     Tianshanella Brodsky, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Blephariceridae (Family)
     Tianshanella Da † accepted as Tianshanella Da † (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > Sarcomastigota (awaiting allocation) (Order) > Sarcomastigota (awaiting allocation) (Family)

Tianzhushania
     Tianzhushania Qian Yi, Chen & Chen, 1979 † accepted as Tianzhushania Qian Yi, Chen & Chen, 1979 † (unassessed) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Athecanephria (Order) > Siboglinidae (Family)
     Tianzhushania L.M. Yin & Z.P. Li, 1978 † accepted as Tianzhushania L.M. Yin & Z.P. Li, 1978 † (unassessed) · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)

Tiara
     Tiara González-Sponga, 1987 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Zalmoxidae (Family)
 Tiara Lesson, 1843 accepted as Neoturris Hartlaub, 1914 (name preoccupied by Tiara Swainson 1831 [Mollusca]) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Pandeidae (Family)
 Tiara Gray, 1847 accepted as Thiara Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Thiaridae (Family)
 Tiara Swainson, 1831 accepted as Vexillum Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Costellariidae (Family)

Tiaranna
     Tiaranna Haeckel, 1879 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tiarannidae (Family)
 Tiaranna Hartlaub, 1914 accepted as Modeeria Forbes, 1848 (pre-ocupied by Tiaranna Haeckel, 1879) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tiarannidae (Family)

Tiare
     Tiare Herring, 1967 accepted as Tiare Herring, 1967 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Anthocoridae (Family)
 Tiare accepted as Tiaris Duméril & Bibron, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Agamidae (Family)

Tiarella
     Tiarella Swainson, 1840 accepted as Tiarella Swainson, 1840 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tiarella Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Saxifragaceae (Family)
 Tiarella Pomel, 1883 † accepted as Trochotiara Lambert in Killian & Petitclere, 1901 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Phymosomatoida (Order) > Phymosomatoida (awaiting allocation) (Family)
 Tiarella Trinci, 1906 accepted as Oceania Kölliker, 1853 (Tiarella Trinci, 1906; preoccupied by Tiarella Swainson 1840 [Mollusca] and Tiarella Schulze, 1876 [Hydrozoa]) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Oceaniidae (Family)
 Tiarella Cheissin, 1931 accepted as Cheissinia Chatton & Lwoff, 1949 · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)
 Tiarella Cossmann, 1889 † accepted as Cyrbasia Harris & Burrows, 1891 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Cerithiopsidae (Family)
 Tiarella Schulze, 1876 accepted as Tricyclusa Stechow, 1919 (preoccupied by Tiarella Swainson 1840 [Mollusca]) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tricyclusidae (Family)

Tiaris
     Tiaris Swainson, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)
     Tiaris Quenstedt, 1872 accepted as Tiaris Quenstedt, 1872 (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Tiaris Duméril & Bibron, 1837 accepted as Tiaris Duméril & Bibron, 1837 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Agamidae (Family)

Tiaropsis
     Tiaropsis Agassiz, 1849 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Tiaropsidae (Family)
 Tiaropsis Brot, 1871 accepted as Thiara Röding, 1798 (invalid: junior homonym of Tiaropsis L. Agassiz, 1850 [Cnidaria]) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Thiaridae (Family)

Tiberia
     Tiberia Monterosato, 1875 accepted as Tiberia Jeffreys, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)
     Tiberia Jeffreys, 1884 accepted as Tiberia Jeffreys, 1884 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)

Tibetia
     Tibetia (S.I. Ali) H.P. Tsui, 1979 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Tibetia Zhang, Zhu & Song, 2006 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pholcidae (Family)

Tibetocoris
     Tibetocoris Zheng & Liu, 1987 accepted as Tibetocoris Zheng & Liu, 1987 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tibetocoris Hutchinson, 1934 accepted as Tibetocoris Hutchinson, 1934 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Tibicina
     Tibicina Kolenati, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)
 Tibicina Amyot, 1847 accepted as Tibicina Kolenati, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)

Tibiella
     Tibiella C.E. Bessey, 1900 † · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Bacillariophyceae (awaiting allocation) (Order) > Bacillariophyceae (awaiting allocation) (Family)
     Tibiella Meyer, 1884 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Thecosomata (Order) > Thecosomata (awaiting allocation) (Family)
     Tibiella Carter, 1881 accepted as Tibiella Carter, 1881 (unassessed) · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Tibiominettia
     Tibiominettia Hendel, 1932 accepted as Tibiominettia Hendel, 1932 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Tibiominettia Hendel, 1936 accepted as Tibiominettia Hendel, 1936 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Tibiovalgus
     Tibiovalgus Krikken, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Tibiovalgus Kolbe, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Tichonia
     Tichonia Hübner, 1825 accepted as Tichonia Hübner, 1825 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tichonia Semenov, 1904 accepted as Tichonilla Strand, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tichorhinus
     Tichorhinus Brandt, 1849 accepted as Tichorhinus Brandt, 1849 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Tichorhinus Fieber, 1858 accepted as Orthotylus Fieber, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Tiedemannia
     Tiedemannia Ehrenberg, 1862 accepted as Tiedemannia Ehrenberg, 1862 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tiedemannia van Beneden, 1839 accepted as Gleba Forsskål in Niebuhr, 1776 (invalid: junior homonym of Tiedemannia Leuckart, 1830 [Echinodermata]) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Thecosomata (Order) > Cymbuliidae (Family)
 Tiedemannia A.P. de Candolle, 1829 accepted as Oxypolis Rafinesque, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Tiedemannia Leuckart, 1830 accepted as Tiedemannia Leuckart, 1830 (unidentified Synaptidae) · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Apodida (Order) > Synaptidae (Family)

Tieghemella
     Tieghemella Pierre, 1890 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)
 Tieghemella Berlese & G.B. De Toni in P.A. Saccardo, 1888 accepted as Absidia Van Tieghem, 1878 · Fungi (Kingdom) > Zygomycota (Phylum) > Zygomycota incertae sedis (Class) > Mucorales (Order) > Mucoraceae (Family)

Tiepolemoides
     Tiepolemoides Breuning, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tiepolemoides Hunt & Breuning, 1959 accepted as Paratiepolemoides Breuning, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tigarea
     Tigarea Pursh, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
 Tigarea Aublet, 1775 accepted as Davilla Vandelli, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dilleniales (Order) > Dilleniaceae (Family)

Tigava
     Tigava Walker, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
     Tigava Stål, 1858 accepted as Tigava Stål, 1858 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Tigrana
     Tigrana Walker, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Tigrana Fairmaire, 1894 accepted as Tigrana Fairmaire, 1894 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Tigridia
     Tigridia Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Tigridia A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Tigrina
     Tigrina Fei, Ye & Huang, 1990 accepted as Tigrina Fei, Ye & Huang, 1990 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Anura (awaiting allocation) (Family)
 Tigrina Grevé, 1894 accepted as Panthera Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Felidae (Family)

Tigris
     Tigris Troschel, 1861 accepted as Tigris Troschel, 1861 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tigris Oken, 1816 accepted as Panthera Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Felidae (Family)
 Tigris Frisch, 1775 accepted as Panthera Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Felidae (Family)
 Tigris Gray, 1843 accepted as Panthera Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Felidae (Family)

Tigronchoides
     Tigronchoides Ivanova, 1976 accepted as Tigronchoides Ivanova, 1976 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Mononchida (Order) > Anatonchidae (Family)
     Tigronchoides Ivanova & Dzhuraeva, 1972 † · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Mononchida (Order) > Anatonchidae (Family)

Tijuca
     Tijuca Lesson, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
 Tijuca Mello-Leitão, 1925 accepted as Tenedos Cambridge, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Zodariidae (Family)

Tildenia
     Tildenia Povolny, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Tildenia Miquel, 1843 accepted as Tildenia Miquel, 1843 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Piperales (Order) > Piperaceae (Family)
 Tildenia Kossinskaja, 1926 accepted as Scytonematopsis E.I. Kiseleva, 1930 (junior homonym) · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Scytonemataceae (Family)

Tilesia
     Tilesia Lamouroux, 1821 † accepted as Tilesia Lamouroux, 1821 † (unassessed) · Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
     Tilesia Robineau-Desvoidy, 1863 accepted as Tilesia Robineau-Desvoidy, 1863 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Tilesia G.F.W. Meyer, 1818 accepted as Tilesia G.F.W. Meyer, 1818 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Tilesia · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Actiniaria incertae sedis (Family)
 Tilesia Swainson, 1838 accepted as Eleginus Fischer, 1813 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Gadidae (Family)

Tillomorpha
     Tillomorpha Blanchard in Gay, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tillomorpha sensu Chevrolat, 1860 accepted as Tilloclytus Bates, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tillyardia
     Tillyardia Carter, 1913 accepted as Tillyardia Carter, 1913 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Tillyardia Bolton, 1922 † accepted as Tillyardia Bolton, 1922 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)

Tillyardiopsis
     Tillyardiopsis Tillyard, 1923 † accepted as Tillyardiopsis Tillyard, 1923 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Tillyardiopsis Dunstan, 1924 † accepted as Mesolobites Carpenter, 1985 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Schizocoleidae (Family)

Tilodes
     Tilodes Fischer Waldheim, 1829 accepted as Tilodes Fischer Waldheim, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Tilodes Cristofori & Jan, 1832 accepted as Tylodes Schönherr in Sahlberg, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tima
     Tima Eschscholtz, 1829 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Eirenidae (Family)
     Tima Walker, 1857 accepted as Tima Walker, 1857 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Timaea
     Timaea Walker, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
 Timaea Saalmüller, 1891 accepted as Compsotata Prout, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Timagora
 Timagora Dejean, 1821 accepted as Cleopus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Timagora Gistl, 1848 accepted as Nettarhinus Schoenherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Timandra
     Timandra Duponchel in Godart, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Timandra Klotzsch, 1841 accepted as Croton Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Timandra Gistl, 1847 accepted as Basitoxus Audinet-Serville, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Timanella
     Timanella A.G. Vologdin in A.G. Vologdin & O.S. Kocetkov, 1966 † accepted as Timanella A.G. Vologdin in A.G. Vologdin & O.S. Kocetkov, 1966 † (unassessed) · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Dasycladaceae (Family)
     Timanella Egorov, 1950 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Timanella Reytlinger, 1981 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Endothyridae (Family)
 Timanella M.A. Plotnikov, 1974 † accepted as Niledziella M.A. Plotnikov, 1979 † (junior homonym) · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Palaeoperidiniaceae (Family)

Timanites
     Timanites Mojsisovics, 1882 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Anarcestida (Order) > Gephuroceratidae (Family)
     Timanites Davydov & Arefifard, 2007 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Schwagerinidae (Family)

Timarcha
     Timarcha Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Timarcha Dejean, 1821 accepted as Timarcha Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Timeneca
 Timeneca Carter, 1914 accepted as Mitrothorax Carter, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Timeneca Bates, 1873 accepted as Mitrothorax Carter, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Timia
     Timia Wiedemann, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ulidiidae (Family)
     Timia Boisduval, 1828 accepted as Timia Boisduval, 1828 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Timmia
     Timmia Hopper, 1961 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Chromadorida (Order) > Chromadoridae (Family)
     Timmia J. Hedwig, 1801 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryales (Order) > Timmiaceae (Family)
 Timmia J.F. Gmelin, 1791 accepted as Timmia J.F. Gmelin, 1791 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Timofeevia
     Timofeevia Vanguestaine, 1978 † · Protozoa (Kingdom) > Acritarcha (Phylum) > Acritarcha (awaiting allocation) (Class) > Acritarcha (awaiting allocation) (Order) > Acritarcha (awaiting allocation) (Family)
     Timofeevia Chisholm, Wheeler & Beverley-Burton, 1995 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Monocotylidea (Order) > Monocotylidae (Family)

Timorella
     Timorella P.R. Bown, 1987 † · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Stephanolithiales (Order) > Parhabdolithaceae (Family)
 Timorella Gerth, 1909 † accepted as Timidella de Laubenfels in Moore, 1955 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Lithistida (Order) > Discodermiidae (Family)
 Timorella Bergh, 1905 accepted as Doto Oken, 1815 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Dotidae (Family)

Timorenia
 Timorenia Swainson, 1840 accepted as Timorenia Swainson, 1840 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Timorenia Spasskii, 1987 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Anoplocephalidae (Family)

Timoria
     Timoria Kaye, 1919 accepted as Timoria Kaye, 1919 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Timoria Krumbeck, 1924 † accepted as Krumbeckiella Ichikawa, 1958 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pergamidiidae (Family)

Tina
     Tina Powell, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Tina J.A. Schultes in J.J. Roemer & J.A. Schultes, 1819 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)

Tinaea
 Tinaea Geoffroy, 1762 accepted as Tinea Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
 Tinaea Garzia, 1838 accepted as Lamarckia C. Moench, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Tinantia
 Tinantia Martens & Galeotti, 1844 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)
     Tinantia Scheidweiler, 1839 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Commelinales (Order) > Commelinaceae (Family)
 Tinantia Dumortier, 1829 accepted as Tinantia Dumortier, 1829 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Tinca
     Tinca Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
     Tinca Geoffroy, 1767 accepted as Tinca Geoffroy, 1767 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Tinca E. Plamada & R. Givulescu, 1979 † accepted as Tinca E. Plamada & R. Givulescu, 1979 † (unassessed) · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryopsida (awaiting allocation) (Order) > Bryopsida (awaiting allocation) (Family)

Tinea
     Tinea Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
     Tinea K.P.J. Sprengel, 1820 accepted as Tinea K.P.J. Sprengel, 1820 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
     Tinea accepted as Tinea (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Zygentoma (Order) > Lepismatidae (Family)
 Tinea Bivona, 1833 accepted as Neotinea H.G. Reichenbach, 1852 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Tinea Griffith, 1897 accepted as Taenia Linnaeus, 1758 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Taeniidae (Family)
 Tinea Denis & Schiffermüller, 1775 accepted as Tinea Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)

Tinearia
     Tinearia Schellenberg, 1803 accepted as Tinearia Schellenberg, 1803 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)
 Tinearia Rafinesque, 1815 accepted as Tinea Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)

Tineites
     Tineites Kawall, 1876 accepted as Tineites Kawall, 1876 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tineites Germar in Münster, 1842 accepted as Tineites Germar in Münster, 1842 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Ephemeroptera (awaiting allocation) (Family)

Tineomorpha
     Tineomorpha Enderlein, 1906 accepted as Tineomorpha Enderlein, 1906 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Psocoptera (awaiting allocation) (Family)
     Tineomorpha Amsel, 1956 accepted as Tineomorpha Amsel, 1956 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Tineopsis
     Tineopsis Felder, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Arctiidae (Family)
     Tineopsis Zagulyaev, 1960 accepted as Tineopsis Zagulyaev, 1960 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tineopsis Dyar, 1914 accepted as Tineopsis Dyar, 1914 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Tingitana
     Tingitana Evans & Sigogneau-Russell, 1997 † accepted as Tingitana Evans & Sigogneau-Russell, 1997 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Rhynchocephalia (Order) > Rhynchocephalia (awaiting allocation) (Family)
     Tingitana Pallary, 1918 accepted as Tingitana Pallary, 1918 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tingitanella
     Tingitanella Bourrelly & Gayral, 1950 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Phacotaceae (Family)
     Tingitanella Streng, 1999 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Linguliporida (Order) > Acrotretidae (Family)

Tinnunculus
     Tinnunculus Linnaeus, 1766 accepted as Tinnunculus Linnaeus, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tinnunculus Vieillot, 1807 accepted as Tinnunculus Vieillot, 1807 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Tinodes
     Tinodes Curtis, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Psychomyiidae (Family)
     Tinodes Stephens, 1829 accepted as Tinodes Stephens, 1829 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)

Tinostoma
     Tinostoma Rothschild & Jordan, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)
 Tinostoma Jousseaume, 1881 † accepted as Teinostoma H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Tornidae (Family)
 Tinostoma P. Fischer, 1885 accepted as Teinostoma H. Adams & A. Adams, 1853 (Unjustified emendation) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Tornidae (Family)

Tinus
     Tinus Cambridge, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pisauridae (Family)
     Tinus P. Miller, 1754 accepted as Tinus P. Miller, 1754 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dipsacales (Order) > Caprifoliaceae (Family)
 Tinus O. Kuntze, 1891 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)
 Tinus Linnaeus, 1759 accepted as Clethra Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Clethraceae (Family)

Tipasa
     Tipasa Walker, 1864 accepted as Tipasa Walker, 1864 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tipasa Walker, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Tiphis
 Tiphis d'Orbigny, 1850 † accepted as Typhis Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
 Tiphis Kirchner, 1864 accepted as Tiphys Koch, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Pionidae (Family)

Tiphys
     Tiphys Koch, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Pionidae (Family)
 Tiphys Gistl, 1848 accepted as Pseudaptinus Laporte, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tiphys Agassiz, 1846 † accepted as Typhis Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Tipnus
 Tipnus Thomson, 1863 accepted as Epauloecus Mulsant & Rey, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
 Tipnus Jacquelin du Val, 1860 accepted as Sphaericus Wollaston, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)

Tipuana
     Tipuana Melichar, 1926 accepted as Tipuana Melichar, 1926 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tipuana (Bentham) Bentham, 1860 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Tipularia
     Tipularia Weyenbergh, 1869 accepted as Tipularia Weyenbergh, 1869 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Tipularia Nuttall, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Tipularia F.F. Chevallier, 1822 accepted as Halterophora Endlicher, 1836 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxogastrea (Class) > Myxogastrea incertae sedis (Order) > Myxogastrea incertae sedis (Family)

Tirasia
     Tirasia Walker, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lecithoceridae (Family)
     Tirasia Walker, 1863 accepted as Tirasia Walker, 1863 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)

Tiresias
 Tiresias Bory de Saint-Vincent, 1833 accepted as · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Xanthophyceae (awaiting allocation) (Order) > Xanthophyceae (awaiting allocation) (Family)
     Tiresias Stephens, 1833 accepted as Tiresias Stephens, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
     Tiresias M'Coy in Griffith, 1846 † accepted as Tiresias M'Coy in Griffith, 1846 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
 Tiresias Stephens, 1835 accepted as Ctesias Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Tiresiomorpha
 Tiresiomorpha Pic, 1954 accepted as Ctesias Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Tiresiomorpha Háva, 2004 accepted as Ctesias Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Tiretia
 Tiretia Hustache, 1949 accepted as Martrilia Casey, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tiretia Hustache, 1938 accepted as Martrilia Casey, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tirodesmus
     Tirodesmus Cook, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Platyrhacidae (Family)
     Tirodesmus Attems, 1932 accepted as Tirodesmus Attems, 1932 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Myriapoda (awaiting allocation) (Class) > Myriapoda (awaiting allocation) (Order) > Myriapoda (awaiting allocation) (Family)

Tirolites
     Tirolites Mojsisovics, 1879 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)
     Tirolites Mojsisovics, 1879 † accepted as Tirolites Mojsisovics, 1879 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)

Tisia
     Tisia Dlabola, 1981 accepted as Tisia Dlabola, 1981 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tisia Hoberlandt, 1993 accepted as Tisia Hoberlandt, 1993 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Tisiphone
     Tisiphone Fitzinger, 1826 accepted as Tisiphone Fitzinger, 1826 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Tisiphone Reitter, 1873 accepted as Tisiphone Reitter, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Smicripidae (Family)
     Tisiphone Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Tisiphone Reitter, 1876 accepted as Smicrips Leconte, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Smicripidae (Family)

Tisiphonia
     Tisiphonia Schmidt, 1870 accepted as Tisiphonia Schmidt, 1870 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Tisiphonia Thomson, 1869 accepted as Thenea Gray, 1867 (junior synonym) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Theneidae (Family)

Tisma
     Tisma Giglio-Tos, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)
     Tisma Razowski, 2014 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Tissa
     Tissa Walker, 1863 accepted as Tissa Walker, 1863 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tissa Adanson, 1763 accepted as Tissa Adanson, 1763 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Tisserantiella
     Tisserantiella Potier de la Varde, 1941 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Orthotrichales (Order) > Rhachitheciaceae (Family)
 Tisserantiella Mimeur, 1949 accepted as Thyridachne Hubbard, 1949 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Titaea
     Titaea Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
     Titaea P.A. Saccardo, 1876 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Tubeufiaceae (Family)

Titana
     Titana Budde-Lund, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Titanidae (Family)
     Titana Walker, 1864 accepted as Titana Walker, 1864 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Titania
 Titania Meigen, 1800 accepted as Titania Meigen, 1800 (Published in a suppressed work (ICZN)) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Titania Endlicher, 1833 accepted as Oberonia Lindley, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Titania Agassiz, 1846 accepted as Titanio Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
 Titania Berlese, 1900 accepted as Fremineavia Nieuwland, 1916 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Melanconidaceae (Family)

Titanichthys
     Titanichthys Newberry, 1885 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Arthrodira (Order) > Arthrodira (awaiting allocation) (Family)
     Titanichthys Dames, 1887 accepted as Titanichthys Dames, 1887 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Titanophyllum
     Titanophyllum B. Renault in B. Renault & R. Zeiller, 1890 † accepted as Titanophyllum B. Renault in B. Renault & R. Zeiller, 1890 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cordaitales (Order) > Cordaitales (awaiting allocation) (Family)
     Titanophyllum Akkari, Stoev & Enghoff, 2011 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Julida (Order) > Julidae (Family)

Titanopsis
     Titanopsis Schwantes, 1926 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
     Titanopsis de Folin, 1881 accepted as Titanopsis de Folin, 1881 · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Psammosphaeridae (Family)
 Titanopsis de Folin, 1887 accepted as Storthosphaera Schultze, 1875 · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Stegnamminidae (Family)

Titanopteryx
     Titanopteryx Enderlein, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Simuliidae (Family)
     Titanopteryx Arambourg, 1959 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Pterosauria (Order) > Azhdarchidae (Family)

Titanothyris
     Titanothyris Ching & Hu, 1982 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Athyrididae (Family)
     Titanothyris Jin, 1984 † accepted as Titanothyris Jin, 1984 † (unassessed) · Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)

Titanus
     Titanus Giebel, 1875 accepted as Titanus Giebel, 1875 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Titanus Audinet-Serville, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Titanus Perrier, 1872 accepted as Titanus Perrier, 1872 (unassessed) · Animalia (Kingdom) > Annelida (Phylum) > Oligochaeta (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)

Tithonia
     Tithonia Pomel, 1883 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Euechinoidea incertae sedis (Order) > Tithoniidae (Family)
     Tithonia Desfontaines ex A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Tithonia O. Kuntze, 1891 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Phytolaccaceae (Family)

Tithonus
     Tithonus Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Tithonus Dejean, 1821 accepted as Otiorhynchus Germar, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tithonus Germar, 1824 accepted as Otiorhynchus Germar, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tithymalus
 Tithymalus P. Miller, 1754 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Tithymalus Séguier, 1754 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Tithymalus Hill, 1756 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Tithymalus J. Gaertner, 1790 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Titia
     Titia Hermann, 1804 accepted as Titia Hermann, 1804 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Titia Meigen, 1800 accepted as Titia Meigen, 1800 (Published in a suppressed work (ICZN)) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Titia Stål, 1866 accepted as Titia Stål, 1866 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Tittmannia
     Tittmannia A.T. Brongniart, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Bruniales (Order) > Bruniaceae (Family)
 Tittmannia H.G.L. Reichenbach, 1824 accepted as Tittmannia H.G.L. Reichenbach, 1824 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Tituacia
     Tituacia Walker, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
 Tituacia Pascoe, 1870 accepted as Tituacus Marshall, 1943 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Titurius
     Titurius Pascoe, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Titurius Simon, 1884 accepted as Thalassius Simon, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pisauridae (Family)

Tlepolemoides
     Tlepolemoides Breuning, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Tlepolemoides Hunt & Breuning, 1959 accepted as Tlepolemoides Hunt & Breuning, 1959 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Tlos
     Tlos Adams & White, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Leucosiidae (Family)
     Tlos White, 1847 accepted as Tlos Adams & White, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Leucosiidae (Family)
     Tlos Adams in Belcher, 1848 accepted as · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Leucosiidae (Family)

Tmesisternus
     Tmesisternus Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tmesisternus Audinet-Serville, 1834 accepted as Coptomma Newman, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tmetocerus
     Tmetocerus Poujade, 1895 accepted as Tmetocerus Poujade, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
 Tmetocerus Hartert, 1891 accepted as Tmetocerus Hartert, 1891 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Toba
     Toba Schmidt, 1911 accepted as Toba Schmidt, 1911 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Toba Holmberg, 1887 accepted as Toba Holmberg, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Tobinia
 Tobinia Whitley, 1933 accepted as Tobinia Whitley, 1933 (Unavailable name (no generic description)) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Balistidae (Family)
     Tobinia Desvaux ex W. Hamilton, 1825 accepted as Tobinia Desvaux ex W. Hamilton, 1825 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Tobolia
     Tobolia Sazonov, 1960 † accepted as Tobolia Sazonov, 1960 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Tobolia Dain in Bykova et al., 1958 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Polymorphinidae (Family)

Tocantinia
     Tocantinia Carrera, 1955 accepted as Tocantinia Carrera, 1955 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Tocantinia P. Ravenna, 2000 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Todaroa
     Todaroa Parlatore in P.B. Webb & S. Berthelot, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Todaroa A. Richard & Galeotti, 1845 accepted as Campylocentrum Bentham, 1881 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Todarus
     Todarus Rafinesque, 1815 accepted as Todarus Rafinesque, 1815 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Octopoda (Order) > Argonautidae (Family)
     Todarus Rafinesque, 1840 accepted as Todarus Rafinesque, 1840 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Octopoda (Order) > Argonautidae (Family)
 Todarus Grassi & Calandruccio, 1896 accepted as Dysomma Alcock, 1889 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Synaphobranchidae (Family)

Toddella
 Toddella Bronnimann & Zaninetti, 1984 † accepted as Rhumblerella Brönniman, 1981 † (subjective junior synonym in opinion of Loeblich & Tappan, 1987) · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Globotextulariidae (Family)
     Toddella Fordham, 1986 † accepted as Toddella Fordham, 1986 † (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > Sarcomastigota (awaiting allocation) (Order) > Sarcomastigota (awaiting allocation) (Family)

Toddia
     Toddia França, 1911 accepted as Toddia França, 1911 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Toddia Travassos, 1954 accepted as Pseudonymus Diesing, 1857 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Pseudonymidae (Family)
 Toddia Kiriakoff, 1967 † accepted as Toddiana Kiriakoff, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)

Toddiana
     Toddiana Kiriakoff, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
     Toddiana Forster, 1988 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Cyatholipidae (Family)

Todea
     Todea McKamey, 1994 † accepted as Todea McKamey, 1994 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)
     Todea Willdenow ex Bernhardi, 1801 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Osmundales (Order) > Osmundaceae (Family)

Todirhamphus
 Todirhamphus Lesson, 1827 accepted as Todiramphus Lesson, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Halcyonidae (Family)
 Todirhamphus Kaup, 1852 accepted as Todirostrum Lesson, 1830-1831 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
 Todirhamphus Voigt in Voigt-Cuvier, 1831 accepted as Todiramphus Lesson, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Halcyonidae (Family)

Toenia
     Toenia Jarocki, 1821 accepted as Toenia Jarocki, 1821 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Toenia Lamarck, 1816 accepted as Taenia Linnaeus, 1758 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Taeniidae (Family)

Togaria
     Togaria Matsumura, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Drepanidae (Family)
 Togaria W.G. Smith, 1908 accepted as Agrocybe Fayod, 1889 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Strophariaceae (Family)

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

Tolarenta
     Tolarenta Gray, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)
     Tolarenta Gray, 1840 accepted as Tolarenta Gray, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)

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

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

Tollia
     Tollia Amsel, 1949 accepted as Tollia Amsel, 1949 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tollia Pavlov, 1913 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Polyptychitidae (Family)
     Tollia I.N. Sveshnikova & L. Yu. Budantsev, 1969 † accepted as Tollia I.N. Sveshnikova & L. Yu. Budantsev, 1969 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinales (Order) > Cupressaceae (Family)

Tolmerus
 Tolmerus Heine, 1890 accepted as Tolmerus Heine, 1890 (Unjustified (?) emendation) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tolmerus Loew, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Tolmerus Förster, 1868 accepted as Tolmerus Förster, 1868 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Tolmerus Fairmaire, 1900 accepted as Tolmetes Champion, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melandryidae (Family)
 Tolmerus Bernhauer, 1911 accepted as Tolmerinus Bernhauer, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tolmiea
     Tolmiea Torrey & A. Gray, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Saxifragaceae (Family)
 Tolmiea W.J. Hooker, 1834 accepted as Tolmiea W.J. Hooker, 1834 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)

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

Tolpiacalles
 Tolpiacalles Stüben & Astrin, 2010 accepted as Silvacalles Stüben & Astrin, 2010 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tolpiacalles Stüben, Fabian & Astrin, 2009 accepted as Silvacalles Stüben & Astrin, 2010 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

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

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

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

Tolumnia
     Tolumnia Stål, 1867 accepted as Tolumnia Stål, 1867 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tolumnia Rafinesque, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

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

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

Tolypammina
     Tolypammina Rhumbler, 1895 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Ammodiscidae (Family)
     Tolypammina Hofker, 1972 accepted as Tolypammina Hofker, 1972 (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > Sarcomastigota (awaiting allocation) (Order) > Sarcomastigota (awaiting allocation) (Family)

Tolype
     Tolype Hübner, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lasiocampidae (Family)
     Tolype Bode, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera incertae sedis (Family)

Tomaculopsis
     Tomaculopsis A.B. Cribb, 1960 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Sporochnales (Order) > Sporochnaceae (Family)
     Tomaculopsis Breton, 2011 † · Animalia (Kingdom) > Trace fossils (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Tomaculum
     Tomaculum Whitford, 1943 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Radiococcaceae (Family)
     Tomaculum Groom, 1902 † accepted as Tomaculum Groom, 1902 † (unassessed) · Animalia (Kingdom) > Animalia (awaiting allocation) (Phylum) > Animalia (awaiting allocation) (Class) > Animalia (awaiting allocation) (Order) > Animalia (awaiting allocation) (Family)

Tomarus
     Tomarus Erichson, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Tomarus Leconte, 1861 accepted as Tomarus Leconte, 1861 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cryptophagidae (Family)

Tomasina
     Tomasina Hall & Clarke, 1891 † accepted as Tomasina Hall & Clarke, 1892 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Obolidae (Family)
     Tomasina Hall & Clarke, 1892 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Obolidae (Family)

Tomella
 Tomella Swainson, 1840 † accepted as Tomellana Wenz in Schindewolf, 1943 (Invalid: junior homonym of Tomella Robineau-Desvoidy, 1830 [Diptera]; Tomellana is a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Clavatulidae (Family)
     Tomella Robineau-Desvoidy, 1830 accepted as Tomella Robineau-Desvoidy, 1830 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Scathophagidae (Family)

Tomentella
     Tomentella Persoon ex Patouillard, 1887 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Thelephorales (Order) > Thelephoraceae (Family)
     Tomentella Johan-Olsen in Brefeld, 1888 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Thelephorales (Order) > Thelephoraceae (Family)
 Tomentella P.A. Karsten, 1889 accepted as Trechispora P.A. Karsten, 1890 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Trechisporales (Order) > Hydnodontaceae (Family)

Tomex
 Tomex Thunberg, 1783 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Lauraceae (Family)
 Tomex Linnaeus, 1753 accepted as Callicarpa Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Tomex P. Forsskål, 1775 accepted as Dobera A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Salvadoraceae (Family)

Tomia
     Tomia Paramonov, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Empididae (Family)
     Tomia Martynov, 1936 † accepted as Tomia Martynov, 1936 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Tomia I.N. Srebrodol'skaja in B.P. Markovskij, 1960 † accepted as Tomia I.N. Srebrodol'skaja in B.P. Markovskij, 1960 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadeoideales (Order) > Cycadeoideales (awaiting allocation) (Family)

Tomiella
     Tomiella Spizharsky, 1937 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Podocopida (awaiting allocation) (Family)
     Tomiella V.A. Chachlov, 1939 † accepted as Tomiella V.A. Chachlov, 1939 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)

Tomiopsis
     Tomiopsis Benediktova, 1956 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Ingelarellidae (Family)
 Tomiopsis Cope, 1893 † accepted as Tomiopsis Cope, 1893 † (Suppressed name (ICZN)) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cingulata (Order) > Glyptodontidae (Family)

Tomlinella
 Tomlinella Clench & Turner, 1948 accepted as Truncatella Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Truncatellidae (Family)
     Tomlinella Viader, 1938 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Zebinidae (Family)

Tomlinsonia
     Tomlinsonia W.D. Tidwell & E.M.V. Nambudiri, 1989 † accepted as Tomlinsonia W.D. Tidwell & E.M.V. Nambudiri, 1989 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Tomlinsonia Turquier, 1985 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Apygophora (Order) > Trypetesidae (Family)

Tomocephalus
 Tomocephalus Agassiz, 1846 accepted as Tomicephalus Latreille, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Tomocephalus Harold, 1869 accepted as Tomicephalus Latreille, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Tomocera
 Tomocera Desmarest in Chenu, 1858 † accepted as Tomocera Desmarest in Chenu, 1858 † (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tomocera Howard, 1881 accepted as Moranila Cameron, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)

Tomochilus
 Tomochilus Laferté-Sénéctère, 1851 accepted as Chlaenius Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tomochilus Fischer, 1884 † accepted as Teliochilus Cossmann, 1906 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)

Tomodon
     Tomodon Rafinesque, 1838 accepted as Tomodon Rafinesque, 1838 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)
     Tomodon Duméril, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Tomodon Leidy, 1865 † accepted as Diplotomodon Leidy, 1869 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Saurischia (Order) > Dryptosauridae (Family)

Tomodus
     Tomodus Trautschold, 1879 accepted as Tomodus Trautschold, 1879 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Tomodus Davis, 1883 † accepted as Tomodus Davis, 1883 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Tomodus Morris & Roberts, 1862 † accepted as Tomodus Morris & Roberts, 1862 † · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Tomodus Ameghino, 1886 † accepted as Eutomodus Ameghino, 1889 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Toxodontidae (Family)

Tomognathus
     Tomognathus Agassiz in Dixon, 1850 † accepted as Tomognathus Agassiz in Dixon, 1850 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Tomognathus Mayr, 1861 accepted as Harpagoxenus Forel, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)

Tomogonus
     Tomogonus d'Orbigny, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Tomogonus Demange, 1971 accepted as Tomogonopus Sierwald & Mauriès, 2017 (junior homonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Spirostreptida (Order) > Spirostreptidae (Family)

Tomopeas
     Tomopeas Miller, 1900 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Molossidae (Family)
     Tomopeas Pilsbry, 1906 accepted as Tomopeas Pilsbry, 1906 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tomyris
     Tomyris Michailovskii, 1912 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Tomyris Eichwald, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)
 Tomyris Druce, 1890 accepted as Rowdenia Nye, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Tomyris Chapuis in Lacordaire, 1874 accepted as Eboo Reid, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Tonduzia
     Tonduzia Pittier, 1908 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Tonduzia F.L. Stevens, 1927 accepted as Dontuzia L.D. Gómez Pignataro, 1973 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Tongshania
     Tongshania Qiu & Lin, 1983 † accepted as Tongshania Qiu & Lin, 1983 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariidae (Family)
     Tongshania F. Stockmans & F.-F. Mathieu, 1957 † accepted as Tongshania F. Stockmans & F.-F. Mathieu, 1957 † (unassessed) · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Tonia
     Tonia Gray, 1840 accepted as Tonia Gray, 1840 (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Stichasteridae (Family)
 Tonia Gray, 1840 accepted as Stichaster Müller & Troschel, 1840 (synonym according to Sladen (1889)) · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Stichasteridae (Family)

Tonica
     Tonica Walker, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
 Tonica Odhner, 1917 accepted as Tonica Odhner, 1917 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Chitonidae (Family)

Tonichia
     Tonichia Gray, 1840 accepted as Tonichia Gray, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Chitonidae (Family)
 Tonichia Gray, 1857 accepted as Tomichia Benson, 1851 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Pomatiopsidae (Family)

Tonnoiria
     Tonnoiria Edwards, 1929 accepted as Tonnoiria Edwards, 1929 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Tonnoiria Parent, 1929 accepted as Neotonnoiria Robinson, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
 Tonnoiria Malloch, 1929 accepted as Craspedochaeta Czerny, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Clusiidae (Family)
 Tonnoiria Lallemand, 1954 accepted as Cercopicesa Koçak & Kemal, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cercopidae (Family)

Tonnoirina
     Tonnoirina Schmitz, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Phoridae (Family)
     Tonnoirina Amorim & Tozoni, 1994 accepted as Tonnoirina Amorim & Tozoni, 1994 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Tonsella
     Tonsella Amsden, 1988 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Oligorhynchiidae (Family)
 Tonsella Schreber, 1789 accepted as Salacia Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Tontelea
     Tontelea Miers, 1872 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)
 Tontelea Aublet, 1775 accepted as Salacia Linnaeus, 1771 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Topalia
     Topalia Balogh & Csiszár, 1963 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Charassobatidae (Family)
 Topalia Hlisnikovský, 1964 accepted as Chiliopelates Jeannel, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)

Topaza
     Topaza Walker, 1864 accepted as Topaza Walker, 1864 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Topaza Gray, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)

Tophoderes
     Tophoderes Dejean, 1834 accepted as Tophoderes Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
     Tophoderes Schönherr, 1839 accepted as Tophoderes Schönherr, 1839 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Toplithus
     Toplithus Des Gozis, 1882 accepted as Toplithus Des Gozis, 1882 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Toplithus Bedel, 1884 accepted as Anthonomus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Topsentia
     Topsentia Berg, 1899 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Halichondrida (Order) > Halichondriidae (Family)
     Topsentia Clarke, 1921 † accepted as Topsentia Clarke, 1921 † (unassessed) · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Torbenia
     Torbenia Libert, 2000 accepted as Torbenia Libert, 2000 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
 Torbenia Baba, 2005 accepted as Torbenella Baba, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Munididae (Family)

Torda
     Torda Duméril, 1806 accepted as Torda Duméril, 1806 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Torda Walker, 1863 accepted as Torda Walker, 1863 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Torellia
     Torellia Jeffreys, 1867 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Capulidae (Family)
     Torellia Heer, 1870 † accepted as Torellia Heer, 1870 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinales (Order) > Taxaceae (Family)

Toreuma
     Toreuma Haeckel, 1880 · Animalia (Kingdom) > Cnidaria (Phylum) > Scyphozoa (Class) > Rhizostomeae (Order) > Cassiopeidae (Family)
 Toreuma Carter, 1913 accepted as Atoreuma Gebien, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Toreus
     Toreus Purcell, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Solifugae (Order) > Ceromidae (Family)
     Toreus Melander, 1906 accepted as Toreus Melander, 1906 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Empididae (Family)

Torinia
 Torinia J.E. Gray, 1842 accepted as Heliacus d'Orbigny in Sagra, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Architectonicidae (Family)
     Torinia Gray, 1840 accepted as Heliacus d'Orbigny in Sagra, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Architectonicidae (Family)

Torma
     Torma China, 1927 accepted as Torma China, 1927 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Capsidae (Family)
 Torma accepted as Tonna Brünnich, 1771 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Tonnidae (Family)

Torminaria
     Torminaria P.M. Opiz, 1839 accepted as Torminaria P.M. Opiz, 1839 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
 Torminaria (A.P. de Candolle) M.J. Roemer, 1847 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)

Tornabenia
 Tornabenia Trevisan, 1853 accepted as Tornabea H. Østhagen in H. Østhagen & P. Sunding, 1980 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Physciaceae (Family)
 Tornabenia A. Massalongo, 1853 accepted as Anaptychia Körber, 1848 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Physciaceae (Family)

Tornatella
 Tornatella Lamarck, 1816 accepted as Acteon Montfort, 1810 (synonym) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Acteonidae (Family)
 Tornatella Mousson, 1869 accepted as Tornatellina Beck, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Achatinellidae (Family)

Tornatellina
     Tornatellina Beck, 1837 accepted as Tornatellina Beck, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Achatinellidae (Family)
     Tornatellina L. Pfeiffer, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Achatinellidae (Family)

Torneutes
     Torneutes Reich, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Torneutes Schönherr, 1844 accepted as Microstrates Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tornista
 Tornista "Iredale, 1936" accepted as Torinista Iredale, 1936 (Error for Torinista) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Architectonicidae (Family)
 Tornista "Gray, 1842" accepted as Torinia J.E. Gray, 1842 (Error for Torinia Gray, 1842) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Architectonicidae (Family)

Tornquistia
     Tornquistia Paeckelmann, 1930 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Anopliidae (Family)
 Tornquistia Reed, 1896 † accepted as Toernquistia Reed, 1896 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Proetida (awaiting allocation) (Family)

Toroa
     Toroa H. Sydow in Toro, 1926 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetidae incertae sedis (Order) > Pseudoperisporiaceae (Family)
     Toroa Ahmed, 1979 accepted as Toroa Ahmed, 1979 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Toronia
     Toronia L.A.S. Johnson & B.G. Briggs, 1975 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)
     Toronia Barnes & McDunnough, 1911 accepted as Toronia Barnes & McDunnough, 1911 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Cossidae (Family)

Torpedo
     Torpedo Duméril, 1806 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Torpediniformes (Order) > Torpedinidae (Family)
     Torpedo Forskål, 1775 accepted as Torpedo Forskål, 1775 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Torpedo Rafinesque, 1810 accepted as Torpedo Duméril, 1806 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Torpediniformes (Order) > Torpedinidae (Family)
 Torpedo Houttuyn, 1764 accepted as Torpedo Duméril, 1806 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Torpediniformes (Order) > Torpedinidae (Family)

Torquatella
     Torquatella Tilbrook, Hayward & Gordon, 2001 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Torquatellidae (Family)
     Torquatella Held, 1837 accepted as Torquatella Held, 1837 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Torquatella Yorke & Maplestone, 1926 accepted as Torquatoides Williams, 1929 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Habronematidae (Family)
 Torquatella Lankester, 1874 accepted as Strombidium Claparède & Lachmann, 1859 (synonym) · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Choreotrichida (Order) > Strobilidiidae (Family)

Torquilla
     Torquilla Brisson, 1760 accepted as Torquilla Brisson, 1760 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Torquilla Studer, 1820 accepted as Torquilla Studer, 1820 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Chondrinidae (Family)

Torrentaria
     Torrentaria Gray, 1863 accepted as Torrentaria Gray, 1863 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Torrentaria Jordan & Evermann, 1896 accepted as Etheostoma Rafinesque, 1819 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Percidae (Family)

Torrenticola
     Torrenticola Domin, 1928 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Podostemaceae (Family)
     Torrenticola Piersig, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Torrenticolidae (Family)

Torresia
 Torresia Castelnau, 1875 accepted as Choerodon Bleeker, 1847 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Labridae (Family)
 Torresia Ruiz & Pavon, 1794 accepted as Anthoxanthum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Torresia Brongersma, 1934 accepted as Pseudothecadactylus Brongersma, 1936 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Diplodactylidae (Family)

Torresita
     Torresita Thomson, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Torresita Saunders, 1871 accepted as Torresita Thomson, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Torresita Gemminger & Harold, 1869 accepted as Torresita Thomson, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Torreya
     Torreya Arnott, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinales (Order) > Taxaceae (Family)
 Torreya A. Eaton, 1829 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cornales (Order) > Loasaceae (Family)
 Torreya Rafinesque, 1819 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
 Torreya Rafinesque, 1818 accepted as Torreya Rafinesque, 1818 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Torreya Carus in Carus & Gerstaecker, 1863 accepted as Torrea Quatrefages, 1850 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Alciopidae (Family)
 Torreya K.P.J. Sprengel, 1820 accepted as Clerodendrum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)

Torrubia
 Torrubia Vellozo, 1829 accepted as Pisonia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)
 Torrubia Léveillé in Cesati & De Notaris, 1863 accepted as Cordyceps E.M. Fries, 1824 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Cordycipitaceae (Family)

Tortembolus
     Tortembolus Chamberlin, 1925 accepted as Tortembolus Chamberlin, 1925 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)
 Tortembolus Crosby, 1925 accepted as Spirembolus Chamberlin, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)

Torticella
     Torticella Gloger, 1842 accepted as Torticella Gloger, 1842 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Torticella Rafinesque, 1833 accepted as Torticella Rafinesque, 1833 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tortricomorpha
     Tortricomorpha Felder, 1861 accepted as Tortricomorpha Felder, 1861 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tortricomorpha Amsel, 1955 accepted as Tortricomorpha Amsel, 1955 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Tortrix
     Tortrix Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
 Tortrix Oppel, 1811 accepted as Tortrix Oppel, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Aniliidae (Family)
 Tortrix Denis & Schiffermüller, 1775 accepted as Tortrix Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Tortula
     Tortula Westerlund, 1878 † accepted as Tortula Westerlund, 1878 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tortula J. Hedwig, 1801 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)
 Tortula Roxburgh ex Willdenow, 1800 accepted as Tortula Roxburgh ex Willdenow, 1800 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)
     Tortula Simon, 1880 accepted as Tortula Simon, 1880 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Sparassidae (Family)

Torula
     Torula Boisduval, 1840 accepted as Torula Boisduval, 1840 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Torula Persoon, 1794 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Torularia
     Torularia Bonnemaison, 1828 accepted as Torularia Bonnemaison, 1828 (unassessed) · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Nemaliales (Order) > Batrachospermaceae (Family)
 Torularia (Cosson) O.E. Schulz in Engler, 1924 accepted as Neotorularia I.C. Hedge & J. Léonard in J. Léonard, 1986 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Torulites
     Torulites J. Pia in M. Hirmer, 1927 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > Fungi (awaiting allocation) (Class) > Fungi (awaiting allocation) (Order) > Fungi (awaiting allocation) (Family)
     Torulites Grüss, 1927 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > Fungi (awaiting allocation) (Class) > Fungi (awaiting allocation) (Order) > Fungi (awaiting allocation) (Family)
     Torulites Kusina & Yatskov, 1987 † accepted as Torulites Kusina & Yatskov, 1987 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Torulopsis
 Torulopsis Berlese, 1894 accepted as Candida Berkhout, 1923 · Fungi (Kingdom) > Ascomycota (Phylum) > Saccharomycetes (Class) > Saccharomycetales (Order) > Saccharomycetales incertae sedis (Family)
 Torulopsis Oudemans, 1903 accepted as Gliomastix Guéguen, 1905 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Hypocreales incertae sedis (Family)
 Torulopsis Spegazzini, 1918 accepted as Torulopsiella H.B. Bender, 1932 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Torynocrinus
     Torynocrinus Seeley, 1866 † accepted as Torynocrinus Seeley, 1866 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Cyrtocrinida (Order) > Cyrtocrinida (awaiting allocation) (Family)
     Torynocrinus Szörényi, 1959 † accepted as Torynocrinus Szörényi, 1959 † (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)

Tosapusia
     Tosapusia Azuma, 1965 accepted as Tosapusia Azuma, 1965 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Tosapusia Habe, 1964 accepted as Vexillum Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Costellariidae (Family)

Totanus
     Totanus Cuvier, 1800 accepted as Totanus Cuvier, 1800 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)
 Totanus Möhring, 1758 accepted as Totanus Möhring, 1758 (Published in a rejected work (ICZN)) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)

Toulminia
     Toulminia Zittel, 1878 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lychniscosida (Order) > Lychniscosa (awaiting allocation) (Family)
 Toulminia Munsey, 1953 † accepted as Munseyella Bold, 1957 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Cytheridae (Family)

Tournoueria
     Tournoueria Brusina, 1870 accepted as Tournoueria Brusina, 1870 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tournoueria Munier-Chalmas, 1884 † accepted as Tournouerella Kilian, 1887 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)

Tovaria
     Tovaria Bolivar, 1890 accepted as Tovaria Bolivar, 1890 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Tovaria Ruiz & Pavon, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Tovariaceae (Family)

Townsendia
     Townsendia W.J. Hooker, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Townsendia Williston, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)

Toxares
     Toxares Westwood, 1840 accepted as Toxares Westwood, 1840 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Toxares Williams, 1891 accepted as Toxares Williams, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Toxarium
     Toxarium J.W. Bailey, 1854 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Toxariales (Order) > Toxariaceae (Family)
 Toxarium Haeckel, 1887 accepted as Lithocircus Müller, 1856 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Acanthodesmiidae (Family)

Toxeres
 Toxeres Agassiz, 1846 accepted as Toxeres Agassiz, 1846 (Unjustified (?) emendation) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Toxeres Schönherr, 1833 accepted as Centrinus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Toxeres Germar, 1829 accepted as Centrinus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Toxerus
 Toxerus Say, 1831 accepted as Centrinus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Toxerus Schönherr, 1836 accepted as Centrinus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Toxeuma
     Toxeuma Walker, 1833 accepted as Toxeuma Walker, 1833 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tetracampidae (Family)
 Toxeuma Chun, 1906 accepted as Taonius Steenstrup, 1861 (invalid: junior homonym of Toxeuma Walker, 1833 [Insecta]; Belonella Lane, 1957 is a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Teuthoidea (Order) > Cranchiidae (Family)

Toxeutes
     Toxeutes Newman, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Toxeutes Schönherr, 1843 accepted as Ludovix Laporte in Brullé, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Toxicodendrum
     Toxicodendrum J. Gaertner, 1788 accepted as Toxicodendrum J. Gaertner, 1788 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
 Toxicodendrum Thunberg, 1796 accepted as Hyaenanche A.B. Lambert, 1797 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Picrodendraceae (Family)

Toxidium
     Toxidium Leconte, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Toxidium Haeckel, 1887 accepted as Toxidium Haeckel, 1887 (unassessed) · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)

Toxoceras
     Toxoceras Chrétien, 1915 accepted as Toxoceras Chrétien, 1915 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Toxoceras d'Orbigny, 1842 † accepted as Toxoceras d'Orbigny, 1842 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ancyloceratidae (Family)

Toxocerus
     Toxocerus Fairmaire, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Glaphyridae (Family)
 Toxocerus King, 1844 † accepted as Toxocerus King, 1844 † (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ancyloceratidae (Family)

Toxocnemis
     Toxocnemis Macquart, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Toxocnemis Dombrow, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Toxodontophanus
     Toxodontophanus Moreno, 1882 accepted as Toxodontophanus Moreno, 1882 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Toxodontophanus Ameghino, 1887 † accepted as Toxodontophanus Ameghino, 1887 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Toxomyia
     Toxomyia Felt, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
     Toxomyia Hull, 1973 accepted as Toxomyia Hull, 1973 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Toxonema
     Toxonema Böhm, 1895 † accepted as Toxonema Böhm, 1895 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Toxonema Léger & Hesse, 1922 accepted as Toxoglugea L. Léger & E. Hesse, 1924 · Protozoa (Kingdom) > Microsporidia (Phylum) > Minisporea (Class) > Microsporida (Order) > Thelohaniidae (Family)

Toxoneura
     Toxoneura Westwood, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Pallopteridae (Family)
 Toxoneura Cresson, 1887 accepted as Toxoneura Cresson, 1887 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Toxopeusia
     Toxopeusia Willemse, 1956 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Toxopeusia Oudemans, 1927 accepted as Fedrizzia Canestrini, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Fedrizziidae (Family)

Toxophorus
     Toxophorus Agassiz, 1846 accepted as Toxophorus Agassiz, 1846 · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Toxophorus Eggers, 1920 † accepted as Toxophthorus Wood, 1967 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Toxophorus Dejean, 1835 accepted as Erodiscus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Toxophorus Schönherr, 1836 accepted as Ludovix Laporte in Brullé, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Toxorhina
     Toxorhina Loew, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)
     Toxorhina Loew in Berendt, 1845 accepted as Toxorhina Loew, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)

Toxorhinus
     Toxorhinus Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
     Toxorhinus Dejean, 1835 accepted as Toxorhinus Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Toxorrhinus
 Toxorrhinus Gemminger & Harold, 1871 accepted as Toxorhinus Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
 Toxorrhinus Champion, 1910 accepted as Toxorhinus Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Toxospora
     Toxospora Voronin, 1993 · Protozoa (Kingdom) > Microsporidia (Phylum) > Rudimicrosporea (Class) > Metchnikovellida (Order) > Metchnikovellidae (Family)
 Toxospora Kudo, 1925 accepted as Toxoglugea L. Léger & E. Hesse, 1924 · Protozoa (Kingdom) > Microsporidia (Phylum) > Minisporea (Class) > Microsporida (Order) > Thelohaniidae (Family)

Toxostoma
     Toxostoma Wagler, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Mimidae (Family)
     Toxostoma Rafinesque, 1818 accepted as Toxostoma Rafinesque, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Toxostoma Rafinesque, 1831 accepted as Toxostoma Rafinesque, 1831 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Toxotarsus
     Toxotarsus Macquart, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)
 Toxotarsus Nonfried, 1892 accepted as Prochelyna Erichson, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Toxotes
     Toxotes Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Toxotidae (Family)
     Toxotes Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Toxotidae (Family)

Toxotinus
 Toxotinus Bates, 1884 accepted as Stenocorus Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Toxotinus Fairmaire, 1893 accepted as Toxitiades Fairmaire, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Toxotropis
     Toxotropis Turczaninow, 1846 accepted as Toxotropis Turczaninow, 1846 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Toxotropis Leconte, 1876 accepted as Ormiscus Waterhouse, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Toxotus
     Toxotus Dejean, 1821 accepted as Stenocorus Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Toxotus Zetterstedt, 1828 accepted as Stenocorus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tozeria
     Tozeria Otte & Alexander, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Podoscirtidae (Family)
     Tozeria Tatzreiter, 1985 † accepted as Tozeria Tatzreiter, 1985 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Tozzettia
     Tozzettia Hesse, 1924 accepted as Tozzettia Hesse, 1924 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tozzettia Parlatore, 1854 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
 Tozzettia Savi, 1799 accepted as Alopecurus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Trabaea
     Trabaea Roewer, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Lycosidae (Family)
 Trabaea Simon, 1898 accepted as Trabea Simon, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Lycosidae (Family)

Trabutiella
 Trabutiella Theissen & H. Sydow, 1914 accepted as Phyllachora Nitschke ex Fuckel, 1870 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Phyllachorales (Order) > Phyllachoraceae (Family)
 Trabutiella F.L. Stevens, 1920 accepted as Diatractium H. Sydow & P. Sydow, 1921 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Diaporthales incertae sedis (Family)

Trachelanthus
     Trachelanthus Korotyaev, 1980 accepted as Trachelanthus Korotyaev, 1980 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Trachelanthus G. Kunze, 1850 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)
 Trachelanthus Klotzsch, 1855 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Begoniaceae (Family)

Trachelia
     Trachelia Scopoli, 1769 accepted as Trachelia Scopoli, 1769 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Trachelia Audinet-Serville, 1834 accepted as Trachelissa Aurivillius, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Trachelia Pfeiffer, 1853 accepted as Tetrentodon Pilsbry, 1903 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Urocoptidae (Family)

Trachelium
     Trachelium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)
     Trachelium Herrich-Schäffer, 1851 accepted as Trachelium Herrich-Schäffer, 1851 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Trachelium Dejean, 1830 accepted as Trachelium Dejean, 1830 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Trachelium J. Hill, 1756 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)

Trachelius
     Trachelius Schrank, 1803 · Chromista (Kingdom) > Ciliophora (Phylum) > Litostomatea (Class) > Haptorida (Order) > Tracheliidae (Family)
     Trachelius Ehrenberg accepted as Trachelius Ehrenberg · Protozoa (Kingdom) > Protozoa incertae sedis (Phylum) > (Class) > (Order) > (Family)

Trachelizus
     Trachelizus Dejean, 1834 accepted as Trachelizus Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Trachelizus Schönherr, 1840 accepted as Trachelizus Schönherr, 1840 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Trachelizus Gyllenhal, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Trachelizus Solier, 1834 accepted as Physea Brullé, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Trachelobdella
     Trachelobdella (Diesing, 1850) · Animalia (Kingdom) > Annelida (Phylum) > Hirudinea (Class) > Rhynchobdellida (Order) > Piscicolidae (Family)
     Trachelobdella Moore, 1957 accepted as Trachelobdella Moore, 1957 (unassessed) · Animalia (Kingdom) > Annelida (Phylum) > Hirudinea (Class) > Hirudinoidea (awaiting allocation) (Order) > Hirudinoidea (awaiting allocation) (Family)

Trachelophyllum
     Trachelophyllum Claparède & Lachmann, 1859 · Chromista (Kingdom) > Ciliophora (Phylum) > Litostomatea (Class) > Haptorida (Order) > Trachelophyllidae (Family)
 Trachelophyllum Levinsen, 1883 accepted as Notophyllum Örsted, 1843 (Subjective synonym) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Phyllodocidae (Family)

Trachelorhachis
     Trachelorhachis Silvestri, 1898 accepted as Trachelorhachis Silvestri, 1898 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Aphelidesmidae (Family)
 Trachelorhachis Agassiz, 1846 accepted as Phlyctaeodes Newman, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trachelostyla
     Trachelostyla Kahl, 1932 accepted as Trachelostyla Kahl, 1932 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Trachelostylidae (Family)
     Trachelostyla Borror, 1972 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Trachelostylidae (Family)

Trachelus
     Trachelus Jurine, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Cephidae (Family)
     Trachelus Dejean, 1821 accepted as Sibinia Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trachelus Solier in Gay, 1849 accepted as Trachalys White, 1974 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)

Tracheomyia
     Tracheomyia Townsend, 1916 accepted as Tracheomyia Townsend, 1916 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Oestridae (Family)
     Tracheomyia Rodhain & Bequaert, 1916 accepted as Tracheomyia Rodhain & Bequaert, 1916 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)

Trachia
     Trachia Martens, 1860 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)
 Trachia Wright, 1855 † accepted as Thracia Leach in Sowerby, 1823 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Thraciidae (Family)

Trachicephalus
     Trachicephalus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Synanceiidae (Family)
 Trachicephalus Steindachner, 1867 accepted as Trachycephalus Tschudi, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hylidae (Family)

Trachinotus
 Trachinotus Gistl, 1848 accepted as Trachinotus Gistl, 1848 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Trachinotus Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
 Trachinotus Berlese, 1881 accepted as Trachytes Michael, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Trachytidae (Family)

Trachinus
     Trachinus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Trachinidae (Family)
 Trachinus Swainson, 1839 accepted as Trachurus Rafinesque, 1810 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)

Trachodes
     Trachodes Germar, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Trachodes D. Don, 1830 accepted as Trachodes D. Don, 1830 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Trachodus
 Trachodus Weise, 1891 accepted as Acalles Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trachodus Klug, 1833 accepted as Trachodes Germar, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trachoma
     Trachoma Wallengren, 1880 accepted as Trachoma Wallengren, 1880 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Trachoma Garay, 1972 accepted as Tuberolabium Yamamoto, 1924 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Trachurus
     Trachurus Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
 Trachurus Plumier in Lacepède, 1801 accepted as Trachurus Rafinesque, 1810 (Stenothoe gallensis doesnot occur in the Mediterranean, most probably it is Stenothoe cattai Stebbing, 1906 and this species is NOT introduced) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
 Trachurus Gronow in Gray, 1854 accepted as Trachurus Rafinesque, 1810 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)

Trachusa
     Trachusa Panzer, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Megachilidae (Family)
 Trachusa Jurine, 1801 accepted as Stelis Panzer, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Megachilidae (Family)
 Trachusa Jurine, 1807 accepted as Stelis Panzer, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Megachilidae (Family)

Trachyaletes
     Trachyaletes Timofeev † · Protozoa (Kingdom) > Acritarcha (Phylum) > Acritarcha (awaiting allocation) (Class) > Acritarcha (awaiting allocation) (Order) > Acritarcha (awaiting allocation) (Family)
 Trachyaletes Vishnu-Mittre, 1956 † accepted as Trachyaletes Vishnu-Mittre, 1956 † (Not validly published) · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Trachyaster
     Trachyaster Pomel, 1869 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Palaeostomatidae (Family)
     Trachyaster Pomel, 1883 † accepted as Trachyaster Pomel, 1883 † (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Palaeostomatidae (Family)
     Trachyaster Spencer, 1913 † accepted as Trachyaster Spencer, 1913 † (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Asteroidea (awaiting allocation) (Order) > Asteroidea (awaiting allocation) (Family)

Trachybaikalia
     Trachybaikalia Westerlund, 1902 accepted as Trachybaikalia Westerlund, 1902 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Trachybaikalia Dall, 1877 † accepted as Trachybaikalia Dall, 1877 † (Unjustified (?) emendation) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Trachybaikalia Nevill, 1884 accepted as Trachybaikalia Nevill, 1884 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Trachycaulus
     Trachycaulus Schulze, 1885 accepted as Trachycaulus Schulze, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Euplectellidae (Family)
     Trachycaulus Schulze, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Euplectellidae (Family)

Trachycephalus
     Trachycephalus Gray, 1845 accepted as Trachycephalus Gray, 1845 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Iguanidae (Family)
     Trachycephalus Tschudi, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hylidae (Family)
 Trachycephalus Agassiz, 1845 accepted as Trachicephalus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Synanceiidae (Family)
 Trachycephalus De Vis, 1884 accepted as Caracanthus Krøyer, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Scorpaenidae (Family)
 Trachycephalus Ferguson, 1875 accepted as Nannophrys Günther, 1869 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Ranidae (Family)

Trachycoccus
     Trachycoccus Borkhsenius, 1950 accepted as Trachycoccus Borkhsenius, 1950 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Trachycoccus Ferris, 1955 accepted as Hypericicoccus Williams, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Eriococcidae (Family)

Trachycystis
 Trachycystis Pascher, 1939 accepted as · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Pleurochloridaceae (Family)
     Trachycystis Pilsbry, 1893 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)
     Trachycystis S.O. Lindberg, 1868 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryales (Order) > Mniaceae (Family)

Trachydemus
     Trachydemus Chevrolat, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trachydemus Zelinka, 1907 accepted as Kinorhynchus Sheremetevskij, 1974 (preoccupied) · Animalia (Kingdom) > Kinorhyncha (Phylum) > Allomalorhagida (Class) > (Order) > Pycnophyidae (Family)

Trachyderes
     Trachyderes Schönherr, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Trachyderes Koch, 1955 accepted as Somaticus Hope, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Trachyderma
     Trachyderma Phillips, 1848 † accepted as Trachyderma Phillips, 1848 † (unassessed) · Animalia (Kingdom) > Annelida (Phylum) > Annelida (awaiting allocation) (Class) > Annelida (awaiting allocation) (Order) > Annelida (awaiting allocation) (Family)
     Trachyderma Solier, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Trachyderma Latreille in Cuvier, 1829 accepted as Ocnera Fischer de Waldheim, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Trachyderma (R. Imazeki) R. Imazeki, 1952 accepted as Ganoderma P.A. Karsten, 1881 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Ganodermataceae (Family)
 Trachyderma Wiegmann, 1829 accepted as Heloderma Wiegmann, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Helodermatidae (Family)
 Trachyderma Gravenhorst, 1829 accepted as Spudaeus Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Trachyderma Norman, 1853 accepted as Pannaria Delise ex Bory, 1828 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Peltigerales (Order) > Pannariaceae (Family)

Trachydermus
 Trachydermus Agassiz, 1845 accepted as Trachidermus Heckel, 1839 (misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Cottidae (Family)
 Trachydermus Desbrochers, 1905 accepted as Trachydemus Chevrolat, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trachydomus
 Trachydomus Portevin, 1935 accepted as Trachydemus Chevrolat, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trachydomus Cossmann, 1918 † accepted as Trachydomia Meek & Worthen, 1866 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Trachyspiridae (Family)

Trachylejeunea
     Trachylejeunea (R. Spruce) V. Schiffner, 1893 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Porellales (Order) > Lejeuneaceae (Family)
 Trachylejeunea Stephani, 1889 accepted as Siphonolejeunea Herzog in Skottsberg, 1942 (nomen rejiciendum) · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Porellales (Order) > Lejeuneaceae (Family)

Trachylepis
     Trachylepis Pander, 1856 † accepted as Trachylepis Pander, 1856 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Trachylepis Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)

Trachylia
 Trachylia Tuckerman, 1848 accepted as Cyphelium Acharius, 1815 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Caliciaceae (Family)
 Trachylia E.M. Fries, 1817 accepted as Arthonia E. Acharius, 1806 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Arthoniaceae (Family)

Trachymantis
     Trachymantis Methuen, 1920 accepted as Trachymantis Methuen, 1920 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Rhacophoridae (Family)
     Trachymantis Giglio-Tos, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)

Trachymetopon
     Trachymetopon Beier, 1960 accepted as Trachymetopon Beier, 1960 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Trachymetopon Hennig, 1939 † accepted as Trachymetopon Hennig, 1939 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Sarcopterygii (Class) > Coelacanthiformes (Order) > Mawsoniidae (Family)

Trachynema
     Trachynema P.-M.Pedersen, 1985 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Chordariales (Order) > Chordariaceae (Family)
     Trachynema Cobb, 1920 accepted as Trachynema Cobb, 1920 (unassessed) · Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)
 Trachynema Gegenbaur, 1854 accepted as Rhopalonema Gegenbaur, 1857 (synonym) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Trachylina (Order) > Rhopalonematidae (Family)

Trachynotus
     Trachynotus Dahl, 1886 accepted as Trachynotus Dahl, 1886 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)
     Trachynotus Bell, 1862 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Goniodromitidae (Family)
     Trachynotus Gravenhorst, 1829 accepted as Trachynotus Gravenhorst, 1829 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Trachynotus Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Trachynotus Timotheew, 1899 accepted as Trachynotus Timotheew, 1899 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Polydesmidae (Family)
 Trachynotus (Müller Hal.) J. Cardot ex M. Fleischer, 1904 accepted as Trachynotus (Müller Hal.) J. Cardot ex M. Fleischer, 1904 (Not validly published) · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Calymperaceae (Family)
 Trachynotus Agassiz, 1846 accepted as Trachinotus Lacepède, 1801 (misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
 Trachynotus Haag-Rutenberg, 18?? accepted as Somaticus Hope, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Trachynotus Schrammen, 1924 † accepted as Trachynoton de Laubenfels in Moore, 1955 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Lithistida (Order) > Lithistida (awaiting allocation) (Family)
 Trachynotus Kramer, 1876 accepted as Trachytes Michael, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Trachytidae (Family)

Trachyops
     Trachyops Dallas, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
     Trachyops Rondani, 1880 accepted as Trachyops Rondani, 1880 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Trachyops Peters, 1865 accepted as Trachops Gray, 1847 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Phyllostomidae (Family)

Trachypachys
 Trachypachys Lacordaire, 1854 accepted as Trachypachus Motschoulsky, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Trachypachys Gemminger & Harold, 1868 accepted as Trachypachus Motschoulsky, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trachypachidae (Family)

Trachyphlaeus
 Trachyphlaeus Stephens, 1829 accepted as Trachyphloeus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trachyphlaeus Dejean, 1821 accepted as Trachyphloeus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trachyphloeus
     Trachyphloeus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Trachyphloeus Attems, 1933 accepted as Trachyphloeus Attems, 1933 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Cryptodesmidae (Family)

Trachyphyllum
     Trachyphyllum Ulitina, 1975 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Stauriida (Order) > Entelophyllidae (Family)
     Trachyphyllum Gepp in Hiern, 1901 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Entodontaceae (Family)

Trachypleura
     Trachypleura Jaekel, 1900 † · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Neoloricata (awaiting allocation) (Order) > Neoloricata (awaiting allocation) (Family)
 Trachypleura Thorne, 1939 accepted as Trachypleurosum Andrássy, 1959 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Dorylaimida (Order) > Trachypleurosidae (Family)

Trachypoma
     Trachypoma Günther, 1859 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Serranidae (Family)
 Trachypoma Giebel, 1871 accepted as Eremophilus Humboldt, 1805 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Trichomycteridae (Family)

Trachypora
     Trachypora Milne-Edwards & Haime, 1851 † accepted as Trachypora Milne-Edwards & Haime, 1851 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Tabulata (Order) > Favositidae (Family)
 Trachypora Verrill, 1864 accepted as Oxypora Saville-Kent, 1871 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Merulinidae (Family)

Trachypteris
     Trachypteris E.F. André ex Christ, 1899 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)
 Trachypteris Kirby in Richardson, 1837 accepted as Melanophila Eschscholtz, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Trachypterus
 Trachypterus Schneider, 1801 accepted as Trachipterus Goüan, 1770 (misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lampriformes (Order) > Trachipteridae (Family)
 Trachypterus Dalla Torre, 1897 accepted as Trachypetus Guérin in Duperry, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Trachypus
     Trachypus Klug, 1810 accepted as Trachypus Klug, 1810 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Crabronidae (Family)
     Trachypus Reinwardt & Hornschuch, 1829 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Meteoriaceae (Family)
 Trachypus Bataille, 1908 accepted as Leccinum S.F. Gray, 1821 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Boletales (Order) > Boletaceae (Family)

Trachypyrgula
     Trachypyrgula Radoman, 1955 accepted as Trachypyrgula Radoman, 1955 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)
     Trachypyrgula Cossmann, 1921 † accepted as Trachypyrgula Cossmann, 1921 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Trachyrhinus
     Trachyrhinus Weed, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Sclerosomatidae (Family)
     Trachyrhinus Silvestri, 1897 accepted as Trachyrhinus Silvestri, 1897 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > Diplopoda (awaiting allocation) (Family)
 Trachyrhinus Sharp, 1896 accepted as Trachyphilus Faust, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trachys
     Trachys Fabricius, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Trachys Persoon, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Trachysma
     Trachysma Jeffreys, 1874 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Pendromidae (Family)
 Trachysma G.O. Sars, 1878 accepted as Torellia Jeffreys, 1867 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Capulidae (Family)

Trachysoma
     Trachysoma Bell, 1858 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Glypheidae (Family)
 Trachysoma Attems, 1898 accepted as Trachygona Cook & Collins, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Trachygonidae (Family)
 Trachysoma Penecke, 1894 accepted as Trachystyphlus Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trachysphaera
     Trachysphaera Heller, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Glomerida (Order) > Trachysphaeridae (Family)
     Trachysphaera R.J. Tabor & R.H. Bunting, 1923 · Chromista (Kingdom) > Pseudofungi (Phylum) > Oomycetes (Class) > Pythiales (Order) > Pythiaceae (Family)

Trachystola
     Trachystola Pascoe, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trachystola Dejean, 1835 accepted as Trachystola Pascoe, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trachystoma
     Trachystoma Ogilby, 1888 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Mugilidae (Family)
     Trachystoma O.E. Schulz, 1916 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Trachytherium
     Trachytherium Gervais, 1849 † accepted as Halitherium Kaup, 1838 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Sirenia (Order) > Dugongidae (Family)
 Trachytherium Gervais, 1849 † accepted as Halitherium Kaup, 1838 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Sirenia (Order) > Dugongidae (Family)

Trachythyone
     Trachythyone Studer, 1876 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Cucumariidae (Family)
 Trachythyone auctt., non Studer, 1876 accepted as Leptopentacta Clark, 1938 (synonym) · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Cucumariidae (Family)

Tragelaphus
     Tragelaphus Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
     Tragelaphus Ogilby, 1836 accepted as Tragelaphus Ogilby, 1836 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Tragiopsis
 Tragiopsis Pomel, 1874 accepted as Stoibrax Rafinesque, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Tragiopsis H. Karsten, 1859 accepted as Sebastiania K.P.J. Sprengel, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Tragiscus
     Tragiscus Klug, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Tragiscus Fieber, 1858 accepted as Tragiscus Fieber, 1858 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
 Tragiscus Thomson, 1857 accepted as Tragicoschema Thomson, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tragium