Between brackets is the number of accepted species
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2 Shows the number of accepted species within the taxon
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- Biota
- Kingdom Animalia
- Phylum Acanthocephala
- Phylum Agmata †
- Phylum Animalia (awaiting allocation)
- Phylum Animalia incertae sedis
- Phylum Annelida
- Phylum Arthropoda
- Phylum Brachiopoda
- Phylum Bryozoa
- Phylum Cephalorhyncha incertae sedis
- Phylum Chaetognatha
- Phylum Chitinozoa †
- Phylum Chordata
- Subphylum Cephalochordata
- Subphylum Tunicata accepted as Urochordata
- Subphylum Urochordata
- Subphylum Vertebrata
- Superclass Tetrapoda
- Class Amphibia
- Class Aves
- Order Accipitriformes
- Order Aepyornithiformes †
- Order Alexornithiformes †
- Order Ambiortiformes †
- Order Anseriformes
- Family Anachronornithidae Houde, Dickson & Camarena, 2023 †
- Family Anatidae Vigors, 1825
- Genus Adelonetta Heine & Reichenow, 1890
- Genus Aeix Anon., 1883 accepted as Aix Boie, 1828
- Genus Aethyia Gloger, 1827 accepted as Aythya Boie, 1822
- Genus Afrocygnus Louchart, Vignaud, Likius, Mackaye & Brunet, 2005 †
- Genus Aithya Boie, 1828 accepted as Aythya Boie, 1822
- Genus Aithyia Gloger, 1827 accepted as Aythya Boie, 1822
- Genus Aix Boie, 1828
- Genus Aldabranas Harrison & Walker, 1978 †
- Genus Allgoviachen Mayr, Lechner & Böhme, 2022 †
- Genus Alopochen Stejneger, 1885
- Genus Amazonetta Boetticher, 1929
- Genus Anabernicula Ross, 1935
- Genus Anas Linnaeus, 1758
- Genus Anassus Rafinesque, 1815 accepted as Anas Linnaeus, 1758
- Genus Ankonetta Cenizo & Agnolin, 2010 †
- Genus Annakacygna Matsuoka & Hasegawa, 2022 †
- Genus Anser Brisson, 1760
- Genus Anseria Rafinesque, 1814 accepted as Anser Brisson, 1760
- Genus Anus Gmelin, 1774 accepted as Anas Linnaeus, 1758
- Genus Aras Brehm, 1831 accepted as Anas Linnaeus, 1758
- Genus Arctonetta Gray, 1856
- Genus Asarcornis Salvadori, 1895
- Genus Australotadorna Worthy, 2009 †
- Genus Awengkere Worthy & Yates, 2017 †
- Genus Aythia Salvadori, 1895 accepted as Aythya Boie, 1822
- Genus Aythya Boie, 1822
- Genus Aythyia Bonaparte, 1854 accepted as Aythya Boie, 1822
- Genus Bambolinetta Mayr & Pavia, 2014 †
- Genus Bernicla Oken, 1817
- Genus Biciura Reichenow, 1882 accepted as Biziura Stephens in Shaw, 1824
- Genus Bizeura Eyton, 1841 accepted as Biziura Stephens in Shaw, 1824
- Genus Biziura Stephens in Shaw, 1824
- Genus Bonibernicla Kurochkin, 1985 †
- Genus Branta Scopoli, 1769
- Genus Bucephala Baird, 1858
- Genus Bucephalus Prjewalski in Rowley, 1878 accepted as Bucephala Baird, 1858
- Genus Byziura Bonaparte, 1857 accepted as Biziura Stephens in Shaw, 1824
- Genus Caerulonettion Zelenkov, 2023 †
- Genus Cairina Fleming, 1822
- Genus Callonetta Delacour, 1936
- Genus Camptorhynchus Bonaparte, 1838
- Genus Camptorynchus accepted as Camptorhynchus Bonaparte, 1838
- Genus Cariama Selby, 1840 accepted as Cairina Fleming, 1822
- Genus Carina S.D.W., 1836
- Genus Carina Fleming, 1828 accepted as Cairina Fleming, 1822
- Genus Casarca Bonaparte, 1838
- Genus Casarka Eyton, 1838 accepted as Casarca Bonaparte, 1838
- Genus Cayaoa Tonni, 1980
- Genus Centrornis Andrews, 1897
- Genus Cercopsis Billberg, 1828 accepted as Cereopsis Latham, 1801
- Genus Cereopsis Latham, 1801
- Genus Chaulelasmus Bonaparte, 1838
- Genus Chelychelynechen Olson & James, 1991
- Genus Chen Boie, 1822
- Genus Chenalopex Stephens, 1824 accepted as Alopochen Stejneger, 1885
- Genus Chendytes Miller, 1925
- Genus Chenelopex Lesson, 1831 accepted as Alopochen Stejneger, 1885
- Genus Cheniscus Eyton, 1838
- Genus Cheniscus Vigors, 1825 accepted as Cheniscus Eyton, 1838
- Genus Cheniscus Bonaparte, 1828 accepted as Cheniscus Eyton, 1838
- Genus Cheniscus Stephens, 1826 accepted as Cheniscus Eyton, 1838
- Genus Cheniskus Bonaparte, 1831 accepted as Cheniscus Eyton, 1838
- Genus Chenoanas Zelenkov, 2012 †
- Genus Chenolopex Vigors, 1825 accepted as Alopochen Stejneger, 1885
- Genus Chenonetta Brandt, 1836
- Genus Chenopis Wagler, 1832
- Genus Chenopsis Bonaparte, 1841 accepted as Chenopis Wagler, 1832
- Genus Chereopsis Gray, 1871 accepted as Cereopsis Latham, 1801
- Genus Cheu Bonaparte, 1828 accepted as Anser Brisson, 1760
- Genus Chlamidochen Bonaparte, 1854 accepted as Chenonetta Brandt, 1836
- Genus Chlamidochen Gray, 1855 accepted as Chenonetta Brandt, 1836
- Genus Chlamlydochen E.P. Ramsay, 1888 accepted as Chenonetta Brandt, 1836
- Genus Chlamydauchen Schlegel, 1866 accepted as Chenonetta Brandt, 1836
- Genus Chlamydochen Bonaparte, 1856 accepted as Chenonetta Brandt, 1836
- Genus Chloephaga Eyton, 1838
- Genus Chloophaga Sundevall, 1873 accepted as Chloephaga Eyton, 1838
- Genus Cignus Wood, 1837 accepted as Cygnus Bechstein, 1803
- Genus Clangula Leach in Ross, 1819
- Genus Clangula Oken, 1817 accepted as Clangula Leach in Ross, 1819
- Genus Cnemiornis Owen, 1865 †
- Genus Coscoroba Reichenbach, 1852
- Genus Ctenanas Mathews, 1914
- Genus Cyanochen Bonaparte, 1856
- Genus Cycnus Brookes, 1828 accepted as Cygnus Bechstein, 1803
- Genus Cygnopterus Lambrecht, 1931
- Genus Cygnus Bechstein, 1803
- Genus Cygnus Bartram, 1791
- Genus Dafila Stephens in Shaw, 1824
- Genus Daphila Vierthaler, 1852
- Genus Dendrochen Miller, 1944 †
- Genus Dendrocygna Swainson, 1837
- Genus Dunstanetta Worthy, Tennyson, Jones, McNamara & Douglas, 2007 †
- Genus Eider Jarocki, 1819
- Genus Eniconetta Gray, 1840
- Genus Eonessa Wetmore, 1938 †
- Genus Etteronetta Salvadori, 1865
- Genus Eulabaea Bonaparte, 1856
- Genus Eulabea Salvadori, 1895
- Genus Eulabeia Reichenbach, 1852
- Genus Eulabia Newton, 1893
- Genus Eunetta Bonaparte, 1856
- Genus Euryanas Oliver, 1930
- Genus Fuligula Stephens in Shaw, 1824
- Genus Geochen Wetmore, 1943
- Genus Glaucionetta Stejneger, 1885
- Genus Helonetta Emslie, 1992 †
- Genus Heniconetta Agassiz, 1846 accepted as Polysticta Eyton, 1836
- Genus Heteroanser Zelenkov, 2012 †
- Genus Heteronetta Salvadori, 1865
- Genus Hina Gray, 1841 accepted as Biziura Stephens in Shaw, 1824
- Genus Histrionicus Lesson, 1828
- Genus Hydrobates Temminck, 1826
- Genus Hygrobates Lichtenstein, 1837 accepted as Biziura Stephens in Shaw, 1824
- Genus Hylobates King, 1828
- Genus Hymaenolaemus Bonaparte, 1856 accepted as Hymenolaimus Gray, 1843
- Genus Hymenolaemus Agassiz, 1846 accepted as Hymenolaimus Gray, 1843
- Genus Hymenolaimus Gray, 1843
- Genus Hymenolonaimus accepted as Hymenolaimus Gray, 1843
- Genus Ilyonetta Heine & Reichenow, 1890
- Genus Koskoroba David, 1871 accepted as Coscoroba Reichenbach, 1852
- Genus Lampronetta Brandt, 1847
- Genus Lavanttalornis Bocheński, Happ, Salwa & Tomek, 2023 †
- Genus Leptotarsis Gould in Eyton, 1838
- Genus Lophodytes Reichenbach, 1852
- Genus Lophonetta Riley, 1914
- Genus Macera Swainson, 1837
- Genus Malacorhynchos Bonaparte, 1854 accepted as Malacorhynchus Swainson, 1831
- Genus Malacorhynchus Swainson, 1831
- Genus Malacorynchus Swainson, 1837 accepted as Malacorhynchus Swainson, 1831
- Genus Manuherikia Worthy, Tennyson, Jones, McNamara & Douglas, 2007 †
- Genus Marcia Warlow, 1833
- Genus Mareca Stephens in Shaw, 1824
- Genus Marganetta Gould, 1841
- Genus Marica Swainson, 1837
- Genus Marila Oken, 1817
- Genus Marmaronetta Reichenbach, 1852
- Genus Marmonetta Gray, 1855 accepted as Marmaronetta Reichenbach, 1852
- Genus Marmoronetta Bonaparte in Parzudaki, 1856 accepted as Marmaronetta Reichenbach, 1852
- Genus Mascarenachen Cowles, 1994 †
- Genus Matanas Worthy, Tennyson, Jones, McNamara & Douglas, 2007 †
- Genus Megalodytes Howard, 1992 †
- Genus Melananas Roberts, 1922
- Genus Melanas Böttger, 1929
- Genus Melanetta Gray, 1840 accepted as Melanitta Boie, 1822
- Genus Melanilta Bonaparte, 1828 accepted as Melanitta Boie, 1822
- Genus Melanitta Boie, 1822
- Genus Melanonetta Sundevall, 1873 accepted as Melanitta Boie, 1822
- Genus Merganeta Gay, 1847
- Genus Merganetta Gould, 1842
- Genus Merganser Brisson, 1760
- Genus Mergellus Selby, 1840
- Genus Mergus Linnaeus, 1758
- Genus Metopiana Bonaparte, 1856
- Genus Metopias Heine & Reichenow, 1890
- Genus Microa Strand, 1943 accepted as Tachyeres Owen, 1875
- Genus Micropterus Lesson, 1828 accepted as Tachyeres Owen, 1875
- Genus Mionetta Livezey & Martin, 1988 †
- Genus Mioquerquedula Zelenkov & Kurochkin, 2012 †
- Genus Miotadorna Worthy, Tennyson, Jones, McNamara & Douglas, 2007 †
- Genus Mycropterus Lesson, 1837 accepted as Tachyeres Owen, 1875
- Genus Nannonetta Campbell, 1979 †
- Genus Neochen Oberholser, 1918
- Genus Nesochen Salvadori, 1895
- Genus Netta Kaup, 1829
- Genus Nettalopex Heine in Heine & Reichenow, 1890 accepted as Casarca Bonaparte, 1838
- Genus Nettapus Brandt, 1836
- Genus Nettepus Stejneger, 1885 accepted as Nettapus Brandt, 1836
- Genus Nettion Kaup, 1829
- Genus Nettopus Agassiz, 1846 accepted as Nettapus Brandt, 1836
- Genus Nomonyx Ridgway, 1880
- Genus Notochen Worthy, Scofield, Hand, De Pietri & Archer, 2022 †
- Genus Nyroca Fleming, 1822
- Genus Olor Wagler, 1832 accepted as Cygnus Bechstein, 1803
- Genus Oxyura Bonaparte, 1831
- Genus Pachyanas Oliver, 1955
- Genus Paecilonetta Bonaparte, 1854
- Genus Paecilonitta Eyton, 1838
- Genus Paracygnopterus Harrison & Walker, 1979 †
- Genus Pervicauda Mathews, 1945 accepted as Oxyura Bonaparte, 1831
- Genus Philacte Bannister, 1870
- Genus Pileata Brown, 1845 accepted as Biziura Stephens in Shaw, 1824
- Genus Pinpanetta Worthy, 2009 †
- Genus Platipus Lesson, 1837
- Genus Platypus Brehm, 1824
- Genus Plectrophanes Brandt, 1836 accepted as Plectropterus Stephens in Shaw, 1824
- Genus Plectropterus Stephens in Shaw, 1824
- Genus Plectrura Gistl, 1848 accepted as Oxyura Bonaparte, 1831
- Genus Pleistoanser Agnolin, 2006 †
- Genus Poecilonetta Strickland, 1842
- Genus Poecilonitta Eyton, 1838
- Genus Polysticta Eyton, 1836
- Genus Polysticte Sundevall, 1873 accepted as Polysticta Eyton, 1836
- Genus Proanser Umanskaya, 1979 †
- Genus Pseudotadorna Kuroda, 1917
- Genus Ptaiochen Olson & James, 1991
- Genus Pteronetta Salvadori, 1895
- Genus Ptocas Heine in Heine & Reichenow, 1890
- Genus Punanetta Bonaparte, 1856
- Genus Radja Bonaparte, 1856
- Genus Radjah Reichenbach, 1852
- Genus Rhinaspis Bonaparte, 1832 accepted as Rhynchaspis Stephens in Shaw, 1824
- Genus Rhodonessa Reichenbach, 1852
- Genus Rhynchaspis Stephens in Shaw, 1824 accepted as Spatula Boie, 1822
- Genus Rufibrenta Bonaparte, 1856
- Genus Saintandrea Mayr & De Pietri, 2013 †
- Genus Salvadorina Rothschild & Hartert, 1894
- Genus Sarcidiornis Agassiz, 1846 accepted as Sarkidiornis Eyton, 1838
- Genus Sarkidiornis Eyton, 1838
- Genus Selenonetta Zelenkov, 2023 †
- Genus Sinanas Yeh, 1980 †
- Genus Somateria Leach, 1819
- Genus Sommateria Kaup, 1829 accepted as Somateria Leach, 1819
- Genus Spatula Boie, 1822 accepted as Anas Linnaeus, 1758
- Genus Speculanas von Boetticher, 1929
- Species Speculanas specularis King, 1828
- Genus Sthenelides Stejneger, 1884
- Genus Sthenelus Stejneger, 1882
- Genus Stictonella Giebel, 1877 accepted as Stictonetta Reichenbach, 1852
- Genus Stictonetta Reichenbach, 1852
- Genus Tachyeres Owen, 1875
- Genus Tadoma Jerdon, 1840 accepted as Tadorna Boie, 1822
- Genus Tadorna Oken, 1817
- Genus Tadorna Boie, 1822
- Genus Tadornes Gray, 1871 accepted as Tadorna Boie, 1822
- Genus Tagayanetta Zelenkov, 2023 †
- Genus Talpanas Olson & James, 2009 †
- Genus Thalassornis Eyton, 1838
- Genus Thambetochen Olson & Wetmore, 1976
- Genus Tirarinetta Worthy, 2008 †
- Genus Tradena Parsons, 1834 accepted as Tadorna Boie, 1822
- Genus Uyrekura Zelenkov, 2024 †
- Genus Virago Newton, 1872
- Family Anhimidae Stejneger, 1885
- Family Anseranatidae Sclater, 1880
- Family Anseriformes (awaiting allocation)
- Family Dendrocygnidae
- Family Paranyrocidae †
- Genus Conflicto Tambussi, Degrange, De Mendoza, Sferco & Santillana, 2019 †
- Genus Cousteauvia Zelenkov, 2020 †
- Genus Kustokazanser Zelenkov, 2024 †
- Genus Naranbulagornis Zelenkov, 2018 †
- Genus Paakniwatavis Musser & Clarke, 2024 †
- Genus Wunketru De Mendoza, Degrange & Tambussi, 2024 †
- Order Apodiformes
- Order Apterygiformes
- Order Archaeopterygiformes †
- Order Ardeiformes
- Order Aves (awaiting allocation)
- Order Aves incertae sedis †
- Order Bucerotiformes
- Order Caprimulgiformes
- Order Cariamiformes
- Order Carinatae (awaiting allocation)
- Order Casuariiformes
- Order Cathartiformes
- Order Cathayornithiformes †
- Order Chaoyangiformes †
- Order Charadriiformes
- Order Charadriimorphae incertae sedis
- Order Ciconiiformes
- Order Coliiformes
- Order Columbiformes
- Order Columbiiformes accepted as Columbiformes
- Order Colymbiformes accepted as Podicipediformes
- Order Confuciusornithiformes †
- Order Coraciiformes
- Order Cuculiformes
- Order Cypselomorphae incertae sedis
- Order Diatrymiformes †
- Order Dinornithiformes †
- Order Enantiornithes incertae sedis †
- Order Enantiornithiformes †
- Order Eoenantiornithiformes †
- Order Euenantiornithes incertae sedis †
- Order Falconiformes
- Order Galliformes
- Order Gansuiformes †
- Order Gastornithiformes †
- Order Gaviiformes
- Order Gobipterygiformes †
- Order Gruiformes
- Order Hesperornithiformes †
- Order Iberomesornithiformes †
- Order Ichthyornithiformes †
- Order Jeholornithiformes †
- Order Liaoningornithiformes †
- Order Limnornithiformes †
- Order Lithornithiformes †
- Order Longipterygiformes †
- Order Mystiornithiformes †
- Order Neognathae incertae sedis
- Order Omnivoropterygiformes †
- Order Opisthocomiformes
- Order Ornithothoraces incertae sedis
- Order Ornithuromorpha incertae sedis †
- Order Palaeocursornithiformes †
- Order Palaeognathae (awaiting allocation)
- Order Pangalliformes incertae sedis
- Order Panpsittaciformes incertae sedis
- Order Passeriformes
- Order Patagopteryformes †
- Order Pelecaniformes
- Order Phaethontiformes
- Order Phoenicopteriformes
- Order Piciformes
- Order Podicipediformes
- Order Praeornithiformes †
- Order Procellariiformes
- Order Psittaciformes
- Order Pygostylia incertae sedis †
- Order Remiornithiformes †
- Order Rheiformes
- Order Sandcoleiformes †
- Order Sphenisciformes
- Order Stereornithes †
- Order Strigiformes
- Order Struthioniformes
- Order Suliformes
- Order Tinamiformes
- Order Trogoniformes
- Order Upupiformes
- Order Vegaviiformes †
- Order Yandangithformes †
- Order Yanornithiformes †
- Family Gobioolithidae Mikhailov, 1996 †
- Family Medioolithidae Kohring & Hirsch, 1996 †
- Family Morsoravidae Mayr, 2023 †
- Family Ornitholithidae Dughi & Sirugue, 1962 †
- Family Xenaviculidae Mayr & Kitchener, 2024 †
- Family Zealandornithidae Worthy, Scofield, Salisbury, Hand, De Pietri & Archer, 2022 †
- Genus Janavis Benito, Kuo, Widrig, Jagt & Field, 2022 †
- Genus Lumbrerornis Bertelli et al., 2024 †
- Genus Lutavis Mayr & Kitchener, 2022 †
- Genus Oculudentavis Xing, O'Connor, Schmitz, Chiappe, McKellar, Yi & Li, 2020 †
- Genus Parvoolithus Mikhailov, 1996 †
- Genus Plagioolithus Imai & Azuma, 2015 †
- Genus Struthiolithus Brandt, 1872 †
- Genus Styloolithus Varricchio & Barta, 2014 †
- Genus Sulcitarsus Mayr & Kitchener, 2024 †
- Genus Tristratioolithus Bravo, Sevilla & Barroso-Barcenilla, 2018 †
- Genus Waltonavis Mayr & Kitchener, 2022 †
- Class Mammalia
- Class Mammaliaformes incertae sedis †
- Class Reptilia
- Genus Archaeoraptor Sloan, 1999 †
- Genus Brittagnathus Ahlberg & Clack, 2020 †
- Genus Diploradus Clack & Smithson in Clack et al., 2017 †
- Genus Mesanerpeton Smithson & Clack, 2018 †
- Genus Ossirarus Clack & Smithson in Clack et al., 2017 †
- Genus Parmastega Beznosov, Clack, Lukševičs, Ruta & Ahlberg, 2019 †
- Genus Perittodus Clack & Smithson in Clack et al., 2017 †
- Genus Sigournea Bolt & Lombard, 2006 †
- Genus Tantallognathus Chen, Alavi, Brazeau, Blom, Millward & Ahlberg, 2017 †
- Genus Tutusius Gess & Ahlberg, 2018 †
- Genus Umzantsia Gess & Ahlberg, 2018 †
- Class Acanthodii †
- Class Actinopterygii
- Class Agnatha (awaiting allocation)
- Class Cephalaspidomorphi
- Class Chondrichthyes
- Class Conodonta †
- Class Dipnoi
- Class Dipnomorpha accepted as Dipnoi
- Class Galeaspida †
- Class Gnathostomata incertae sedis †
- Class Myxini
- Class Osteichthyes (awaiting allocation)
- Class Osteichthyes incertae sedis †
- Class Ostracodermi †
- Class Pisces (awaiting allocation)
- Class Placodermi †
- Class Pteraspidomorphi †
- Class Sarcopterygii
- Class Thelodonti †
- Genus Emmonsaspis Resser & Howell, 1938 †
- Genus Harajicadectes Choo, Holland, Clement, King, Challands, Young & Long, 2024 †
- Genus Kahamachli Malkani, 2019 †
- Genus Nuucichthys Lerosey-Aubril & Ortega-Hernández, 2024 †
- Genus Rhynchocopros Hunt, Lucas & Spielmann, 2013 †
- Genus Santamariacopros Hunt, Lucas & Spielmann, 2013 †
- Genus Squirmarius McCoy, Wittry, Sadabadi & Mayer, 2023 †
- Class Chordata (awaiting allocation)
- Class Eotetrapodiformes incertae sedis
- Phylum Cnidaria
- Phylum Ctenophora
- Phylum Cycliophora
- Phylum Cycloneuralia incertae sedis
- Phylum Ecdysozoa incertae sedis †
- Phylum Echinodermata
- Phylum Entoprocta
- Phylum Gastrotricha
- Phylum Gnathostomulida
- Phylum Hemichordata
- Phylum Hyolitha †
- Phylum Kinorhyncha
- Phylum Lobopoda †
- Phylum Loricifera
- Phylum Micrognathozoa
- Phylum Mollusca
- Phylum Monoblastozoa accepted as Animalia incertae sedis
- Phylum Nematoda
- Phylum Nematomorpha
- Phylum Nemertea
- Phylum Onychophora
- Phylum Orthonectida
- Phylum Phoronida
- Phylum Placozoa
- Phylum Platyhelminthes
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera
- Phylum Priapula accepted as Priapulida
- Phylum Priapulida
- Phylum Problematica † accepted as Animalia incertae sedis
- Phylum Rhombozoa
- Phylum Rotifera
- Phylum Scalidophora incertae sedis
- Phylum Sipuncula
- Phylum Tardigrada
- Phylum Trace fossils †
- Phylum Vendobionta †
- Phylum Vestimentifera accepted as Siboglinidae Caullery, 1914
- Phylum Vetulicolia †
- Phylum Vinctiplicata incertae sedis †
- Phylum Xenacoelomorpha
- Genus Trilobocaris Pribyl, 1953 †
- Kingdom Archaea
- Kingdom Bacteria
- Kingdom Chromista
- Kingdom Fungi
- Kingdom Plantae
- Kingdom Protista accepted as Protozoa
- Kingdom Protozoa
- Kingdom Viruses
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