Between brackets is the number of accepted species
1 Click on "-" to collapse/hide all child taxa
2 Shows the number of accepted species within the taxon
3 The last expanded taxon is highlighted
4 Click on "+" to expand/show all child taxa
5 Click to see the taxon details page
- 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
- Class Mammalia
- Class Mammaliaformes incertae sedis †
- Class Reptilia
- Order Aetosauria †
- Order Anapsida (awaiting allocation)
- Order Araeoscelida † represented as Araeoscelidia †
- Order Araeoscelidia †
- Order Archosauria (awaiting allocation) †
- Order Archosauria incertae sedis
- Order Archosauriformes incertae sedis †
- Order Archosauromorpha incertae sedis †
- Order Avetheropoda †
- Order Captorhinida †
- Order Chelonia accepted as Testudines
- Order Choristodera †
- Order Cotylosauria †
- Order Crocodylia
- Order Crocodyliformes incertae sedis
- Order Crocodylomorpha incertae sedis
- Order Diapsida incertae sedis †
- Order Dinosauria (awaiting allocation) †
- Order Dinosauria incertae sedis †
- Order Dinosauriformes (awaiting allocation) †
- Order Eosuchia †
- Order Eusuchia incertae sedis
- Order Herrerasauria †
- Order Huenesuchia †
- Order Hupehsuchia †
- Order Ichthyopterygia (awaiting allocation) †
- Order Ichthyosauria †
- Order Lepidosauria (awaiting allocation)
- Order Lepidosauria incertae sedis
- Order Lepidosauromorpha incertae sedis
- Order Loricata incertae sedis
- Order Mesoeucrocodylia incertae sedis
- Order Neodiapsida incertae sedis
- Order Neosuchia incertae sedis
- Order Nothosauria †
- Order Ornithischia †
- Order Parareptilia incertae sedis †
- Order Paraves incertae sedis †
- Order Pareiasauria †
- Order Pelycosauria †
- Order Placodontia †
- Order Plesiosauria †
- Order Procolophonoidea †
- Order Procolophonomorpha †
- Order Prolacertiformes †
- Order Protorosauria †
- Order Pterosauria †
- Order Pterosauromorpha incertae sedis †
- Order Rauisuchiformes †
- Order Reptilia (awaiting allocation)
- Order Reptilia incertae sedis
- Order Rhynchocephalia
- Order Rhynchosauria †
- Order Saurischia †
- Order Sauropsida (awaiting allocation) †
- Order Sauropterygia † accepted as Sauropterygia incertae sedis
- Order Sauropterygia incertae sedis
- Order Sphenodontida
- Order Squamata
- Family Acrochordidae Bonaparte, 1840
- Family Acrodonta incertae sedis
- Family Agamidae Gray, 1827
- Family Aigialosauridae Kramberger, 1892 †
- Family Amphisbaenia (awaiting allocation)
- Family Amphisbaenia incertae sedis
- Family Amphisbaenidae Gray, 1865
- Family Anguidae Gray, 1825
- Family Anguimorpha incertae sedis
- Family Aniliidae Fitzinger, 1826
- Family Anilioidea incertae sedis †
- Family Anniellidae
- Family Anomalepidae
- Family Anomalophiidae †
- Family Anomochilidae
- Family Aprasiaidae Wells, 2007 accepted as Pygopodidae Boulenger, 1884
- Family Ardeosauridae Camp, 1923 †
- Family Arretosauridae Gilmore, 1943 †
- Family Atractaspididae
- Family Bainguidae Borsuk-Bialynicka, 1984 †
- Family Barbatteiidae Codrea, Venczel & Solomon, 2017 †
- Family Bavarisauridae Kuhn, 1961 †
- Family Bipedidae
- Family Blanidae Kearney, 2003
- Family Boidae Gray, 1825
- Family Bolyeridae accepted as Bolyeriidae
- Family Bolyeriidae
- Family Booidea incertae sedis †
- Family Borioteiioidea incertae sedis †
- Family Caenophidia (awaiting allocation)
- Family Carolinidae Borsuk-Bialynicka, 1985 †
- Family Carphodactylidae Kluge, 1967
- Family Chamaeleonidae Gray, 1825
- Family Chamaeleontidae
- Family Chamopsiidae Nydam, Caldwell & Fanti, 2010 †
- Family Changjiangosauridae Hou, 1976 †
- Family Colubridae Oppel, 1811
- Family Colubroidea (awaiting allocation)
- Family Contogeniidae Nydam & Fitzpatrick, 2009 †
- Family Cordylidae Gray, 1837
- Family Corytophanidae
- Family Crotalidae
- Family Crotaphytidae
- Family Cyclocoridae Weinell & Brown, 2017
- Family Cylindrophiidae Fitzinger, 1843
- Family Dactyloidae Fitzinger, 1843
- Family Dibamidae Boulenger, 1884
- Family Dinilysiidae Romer, 1956 †
- Family Diplodactylidae Underwood, 1954
- Family Diploglossidae Boucourt, 1873
- Family Dipsadidae Bonaparte, 1840
- Family Dolichosauridae Gervais, 1852 †
- Family Dorsetisauridae Hoffstetter, 1967 †
- Family Eichstaettisauridae Kuhn, 1958 †
- Family Elapidae Boié, 1827
- Genus Acalyptophis Boulenger, 1896
- Genus Acanthophis Daudin in Sonnini, 1803
- Genus Acanthopis Gray, 1825 accepted as Acanthophis Daudin in Sonnini, 1803
- Genus Acantophis Berthold in Latreille, 1827 accepted as Acanthophis Daudin in Sonnini, 1803
- Genus Adeniophis Peters, 1871
- Genus Afronaja Wallach, Wüster & Broadley, 2009 accepted as Naja Laurenti, 1768
- Genus Aggressiserpens Wells, 2002 accepted as Acanthophis Daudin in Sonnini, 1803
- Genus Aipysurus Lacepède, 1804
- Genus Alecto Wagler, 1830 accepted as Notechis Boulenger, 1896
- Genus Antaioserpens Wells & Wellington, 1985
- Genus Apisthocalamus accepted as Apistocalamus Boulenger, 1897
- Genus Apistocalamus Boulenger, 1897
- Genus Aspidelaps Fitzinger, 1843
- Genus Aspidoclonion Wagler, 1828
- Genus Aspidoclonium Agassiz, 1844
- Genus Aspidomorphus Fitzinger, 1843
- Genus Astrotia Fischer, 1856
- Genus Austrelaps Worrell, 1963
- Genus Benmooreus Hoser, 2013 accepted as Calliophis Gray, 1834
- Genus Binghamus Hoser, 2012 accepted as Micrurus Wagler in Spix, 1824
- Genus Bioliophis accepted as Calliophis Gray, 1834
- Genus Boulengerina Dollo, 1886
- Genus Brachyaspis Boulenger, 1896
- Genus Brachysoma Fitzinger, 1843
- Genus Brachyurophis Günther, 1863
- Genus Bungarus Oppel, 1811
- Genus Cacophis Günther, 1863
- Genus Calliophis Gray, 1834
- Genus Callophis Günther, 1859 accepted as Calliophis Gray, 1834
- Genus Cannia Wells & Wellington, 1983
- Genus Chitulia Gray, 1849
- Genus Crottyhydrophis Hoser, 2013 accepted as Hydrophis Latreille, 1801
- Genus Cryptophis Worrell, 1961
- Genus Crytophis accepted as Cryptophis Worrell, 1961
- Genus Cyrtophis Smith, 1849
- Genus Demansia Gray, 1842
- Genus Dendraphis accepted as Dendroaspis Schlegel, ? 1848
- Genus Dendraspis Fitzinger, 1843
- Genus Dendroaspis Schlegel, ? 1848
- Genus Dendrospis accepted as Dendroaspis Schlegel, ? 1848
- Genus Denisonia Krefft, 1869
- Genus Diamenia Sauvage, 1878 accepted as Demansia Gray, 1842
- Genus Diemansia Günther, 1858 accepted as Demansia Gray, 1842
- Genus Diemenia Günther, 1863 accepted as Demansia Gray, 1842
- Genus Diemennia Günther, 1863 accepted as Demansia Gray, 1842
- Genus Diemennia Steindachner, 1867 accepted as Demansia Gray, 1842
- Genus Dinophis Hallowell, 1852
- Genus Disteira Lacepède, 1804
- Genus Doliophis Girard, 1857
- Genus Drepanodontis Worrell, 1961
- Genus Drysdalia Worrell, 1961
- Genus Dugitophis Wells, 2002 accepted as Pseudonaja Günther, 1858
- Genus Echiopsis Fitzinger, 1843
- Genus Elapechis Boulenger, 1896
- Genus Elapidocephalus Macleay, 1884 accepted as Demansia Gray, 1842
- Genus Elapocephalus Macleay, 1878
- Genus Elapocormus Fitzinger, 1843 accepted as Hoplocephalus Wagler, 1830
- Genus Elapocranium Macleay, 1884 accepted as Demansia Gray, 1842
- Genus Elapognathus Boulenger, 1896
- Species Elapognathus coronata Schlegel, 1837
- Species Elapognathus minor Günther, 1863
- Species Elapognathus orri Wells & Wellington, 1985
- Species Elapognathus resolutus Wells & Wellington, 1985 accepted as Drysdalia coronata Worrell, 1961
- Genus Elapoidea Boulenger, 1896 accepted as Elapsoidea Barboza de Bocage, 1866
- Genus Elaps Schneider, 1801
- Genus Elapsoidea Barboza de Bocage, 1866
- Genus Emydocephalus Krefft, 1869
- Genus Enhydrina Gray, 1849
- Genus Ephalophis Smith, 1931
- Genus Euprepiosoma Fitzinger, 1861
- Genus Funkelapidus Hoser, 2012 accepted as Calliophis Gray, 1834
- Genus Furina Duméril, 1853
- Genus Glyphodon Günther, 1858
- Genus Hamadryas Cantor, 1838 accepted as Ophiophagus Günther, 1864
- Genus Hawkeswoodelapidus Hoser, 2013 accepted as Elapognathus Boulenger, 1896
- Genus Hemachatus Fleming, 1822
- Genus Hemiaspis Fitzinger, 1861
- Genus Hemibungarus Peters, 1862
- Genus Hemibungaus accepted as Hemibungarus Peters, 1862
- Genus Holocephalus accepted as Hoplocephalus Wagler, 1830
- Genus Homaloselaps Jan, 1859 accepted as Vermicella Günther, 1858
- Genus Homorelaps Boulenger, 1896 accepted as Homoroselaps Jan, 1859
- Genus Homoroselaps Jan, 1859
- Genus Hoplocephalus Agassiz, 1846 accepted as Notechis Boulenger, 1896
- Genus Hoplocephalus Wagler, 1830
- Genus Hornea Lucas & Frost, 1896
- Genus Hoserelapidea Hoser, 2012 accepted as Micrurus Wagler in Spix, 1824
- Genus Hulimkai Hoser, 2012 accepted as Suta Worrell, 1961
- Genus Hydrelaps Boulenger, 1896
- Genus Hydrophis Latreille, 1801
- Genus Incongruelaps Scanlon, Lee & Archer, 2003 †
- Genus Kerilia Gray, 1849
- Genus Kolpophis Smith, 1926
- Genus Lapemis Gray, 1835
- Genus Laticauda Laurenti, 1768
- Genus Leptaspis Fitzinger, 1861
- Genus Leptomicrurus Schmidt, 1937 accepted as Micrurus Wagler in Spix, 1824
- Genus Limnonaja Schmidt, 1923
- Genus Loveridgelaps McDowell, 1970
- Genus Lukefabaus Hoser, 2014 accepted as Cryptophis Worrell, 1961
- Genus Lunelaps Worrell, 1961
- Genus Macconchieus Hoser, 2014 accepted as Cryptophis Worrell, 1961
- Genus Mainophis Macleay, 1877
- Genus Maticora Gray, 1835 accepted as Calliophis Gray, 1834
- Genus Megaerophis Gray, 1849
- Genus Melwardia Worrell, 1960
- Genus Merremia Berg, 1901
- Genus Microcephalophis Lesson in Bélanger, 1832
- Genus Micropechis Boulenger, 1896
- Genus Micruroides Schmidt, 1928
- Genus Micrurus Wagler in Spix, 1824
- Genus Naia Berthold in Latreille, 1827 accepted as Naja Laurenti, 1768
- Genus Naja Laurenti, 1768
- Genus Narophis Worrell, 1961
- Genus Neelaps Günther, 1863
- Genus Notechis Boulenger, 1896
- Genus Notopseudonaja Wells, 2002
- Genus Oceanius Wells, 2007
- Genus Ogmodon Peters, 1864
- Genus Ophiophagus Günther, 1864
- Genus Ophrias Cuvier, 1829 accepted as Acanthophis Daudin in Sonnini, 1803
- Genus Ophryas Merrem, 1820 accepted as Acanthophis Daudin in Sonnini, 1803
- Genus Oplocephalus Gray, 1830 accepted as Notechis Boulenger, 1896
- Genus Oxyuranus Kinghorn, 1923
- Genus Pailsus Hoser, 1998 accepted as Pseudechis Wagler, 1830
- Genus Palaeonaja Hoffstetter, 1939 †
- Genus Panacedechis Wells & Wellington, 1985 accepted as Pseudechis Wagler, 1830
- Genus Parademansia Kinghorn, 1955
- Genus Parahydrophis Burger & Natsuno, 1974
- Genus Paranaja Loveridge, 1944
- Genus Parapistocalamus Roux, 1934
- Genus Parasuta Worrell, 1961
- Genus Paroplocephalus Keogh, Scott & Scanlon, 2000
- Genus Paulstokesus Hoser, 2013 accepted as Calliophis Gray, 1834
- Genus Pelagophis Peters & Doria, 1878
- Genus Pelamis Daudin, 1803
- Genus Petrodymon Krefft, 1869 accepted as Cacophis Günther, 1863
- Genus Pilgerus Hoser, 2014 accepted as Aspidomorphus Fitzinger, 1843
- Genus Placidaserpens Wells, 2002
- Genus Polyodontognathus Wall, 1921
- Genus Praescutata Wall, 1901
- Genus Pseudeches accepted as Pseudechis Wagler, 1830
- Genus Pseudechis Wagler, 1830
- Genus Pseudechys accepted as Pseudechis Wagler, 1830
- Genus Pseudelaphe accepted as Pseudoelaps Fitzinger, 1826
- Genus Pseudelaps Fitzinger, 1843
- Genus Pseudelaps Agassiz, 1846
- Genus Pseudoelaphe accepted as Pseudoelaps Fitzinger, 1826
- Genus Pseudoelaps Fitzinger, 1826
- Genus Pseudohaje Günther, 1858
- Genus Pseudolaticauda Kharin, 1984
- Genus Pseudonaia accepted as Pseudonaja Günther, 1858
- Genus Pseudonaja Günther, 1858
- Genus Rhinelaps Günther, 1872
- Genus Rhinhoplocephalus Boulenger, 1896 accepted as Rhinoplocephalus Müller, 1885
- Genus Rhinoplocephalus Müller, 1885
- Genus Rhynchelaps Boulenger, 1896
- Genus Rhynchoelaps Jan, 1859
- Genus Salomonelaps McDowell, 1970
- Genus Sepedon Merrem, 1820
- Genus Sepedonophis Smith, 1936
- Genus Simoselaps Jan, 1859
- Genus Simotes Duméril & Bibron, 1854
- Genus Sinomicrurus Slowinski, Boundy & Lawson, 2001
- Genus Sipedon accepted as Sepedon Merrem, 1820
- Genus Smithsohydrophis Kharin, 1981
- Genus Spracklandus Hoser, 2009 accepted as Afronaja Wallach, Wüster & Broadley, 2009
- Genus Staszewskius Hoser, 2013 accepted as Drysdalia Worrell, 1961
- Genus Stephanohydra Tschudi, 1837
- Genus Suta Worrell, 1961
- Genus Swilea Hoser, 2013 accepted as Calliophis Gray, 1834
- Genus Thalassophina Smith, 1926
- Genus Thalassophis Schmidt, 1852
- Genus Tomogaster Gray, 1849
- Genus Tomyris Eichwald, 1831
- Genus Toxicocalamus Boulenger, 1896
- Genus Troianous Hoser, 2012 accepted as Micrurus Wagler in Spix, 1824
- Genus Tropidechis Günther, 1863
- Genus Ultrocalamus Sternfeld, 1913
- Genus Unechis Worrell, 1961
- Genus Uraeus Wagler, 1830 accepted as Naja Laurenti, 1768
- Genus Vermicalla Günther, 1858 accepted as Vermicella Günther, 1858
- Genus Vermicella Günther, 1858
- Genus Walmsleyus Hoser, 2014 accepted as Aspidomorphus Fitzinger, 1843
- Genus Walterinnesia Lataste, 1886
- Genus Wellsus Hoser, 2009 accepted as Uraeus Wagler, 1830
- Genus Xenurelaps Günther, 1864
- Family Eolacertidae Čerňanský & Smith, 2017 †
- Family Eoxantidae Alifanov, 1993 †
- Family Erycidae Bonaparte, 1825 †
- Family Erycinidae Kuhn, 1967 accepted as Boidae Gray, 1825
- Family Euposauridae Camp, 1923 †
- Family Gekkonidae Gray, 1825
- Family Gekkoolithidae Hirsch, 1996 †
- Family Gekkota incertae sedis
- Family Gerrhosauridae
- Family Globauridae Alifanov, 2000 †
- Family Gobiguania incertae sedis †
- Family Gymnophthalmidae Fitzinger, 1826
- Family Helodermatidae Gray, 1837
- Family Hoplocercidae
- Family Hydrophidae accepted as Hydrophiidae Smith, 1926
- Family Hydrophiidae Smith, 1926
- Family Hyporhinidae Baur, 1893 †
- Family Iguania incertae sedis
- Family Iguanidae Gray, 1827
- Family Isodontosauridae Alifanov, 1993 †
- Family Kuehneosauridae Romer, 1966 †
- Family Lacertibaenia incertae sedis †
- Family Lacertidae Bonaparte, 1831
- Family Lacertilia (awaiting allocation)
- Family Lacertoidea incertae sedis
- Family Lamprophiidae Fitzinger, 1843
- Family Lanthanotidae Steindachner, 1878
- Family Lanthonotidae
- Family Lapparantophiidae †
- Family Lapparentopheidae Hoffstetter, 1968 †
- Family Laticaudidae
- Family Leiosauridae
- Family Leptotyphlopidae Stejneger, 1892
- Family Loxocemidae
- Family Macrocephalosauridae Sulimski, 1975 †
- Family Macrostomata incertae sedis †
- Family Madstoiidae † accepted as Madtsoiidae Hoffstetter, 1961 †
- Family Madtsoiidae Hoffstetter, 1961 †
- Family Monstersauria incertae sedis †
- Family Mosasauria incertae sedis †
- Family Mosasauridae Gervais, 1853 †
- Family Necrosauridae Hoffstetter, 1943 †
- Family Nigerophiidae Rage, 1975 †
- Family Oligodontosauridae Estes, 1975 †
- Family Ophidia incertae sedis
- Family Opluridae
- Family Pachyophiidae Nopcsa, 1923 †
- Family Palaeopheidae Lydekker, 1888 † accepted as Palaeophiidae Lydekker, 1888 †
- Family Palaeophidae † accepted as Palaeophiidae Lydekker, 1888 †
- Family Palaeophiidae Lydekker, 1888 †
- Family Palaeovaranidae Georgalis, 2017 †
- Family Paliguanidae †
- Family Paramacellodidae Estes, 1983 †
- Family Parasaniwidae Estes, 1964 †
- Family Paravaranidae Borsuk-Bialynicka, 1984 †
- Family Pareatidae Romer, 1956 accepted as Pareidae Romer, 1956
- Family Pareidae Romer, 1956
- Family Phrynosomatidae
- Family Platynota incertae sedis
- Family Pleurodonta incertae sedis
- Family Polychrotidae
- Family Polyglyphanodontia incertae sedis †
- Family Polyglyphanodontidae Gilmore, 1942 †
- Family Polyodontobaenidae Folie, Smith & Smith, 2013 †
- Family Priscagamidae Borsuk-Białynicka & Moody, 1984 †
- Family Pygopodidae Boulenger, 1884
- Family Pythonidae Fitzinger, 1826 accepted as Boidae Gray, 1825
- Family Rhineuridae Vanzolini, 1951 †
- Family Russelophiidae †
- Family Sauria (awaiting allocation)
- Family Saurosternidae Haughton, 1924 †
- Family Scincidae Gray, 1825
- Family Scincogekkonomorpha incertae sedis
- Family Scincoidea (awaiting allocation)
- Family Scincoidea incertae sedis
- Family Scincomorpha incertae sedis
- Family Scleroglossa incertae sedis
- Family Serpentes (awaiting allocation)
- Family Serpentes incertae sedis †
- Family Shinisauridae Ahl, 1930
- Family Simoliophiidae †
- Family Sphaerodactylidae Underwood, 1954
- Family Squamata (awaiting allocation)
- Family Teiidae Gray, 1827
- Family Trogonophidae Bonaparte, 1838
- Family Trogonophiidae accepted as Trogonophidae Bonaparte, 1838
- Family Tropidophiidae Cope, 1894
- Family Tropiduridae
- Family Typhlopidae Bonaparte, 1831
- Family Uropeltidae
- Family Varanidae Hardwicke & Gray, 1824
- Family Varanoidea incertae sedis
- Family Viperidae Oppel, 1811
- Family Xantusiidae Baird, 1858
- Family Xenodermidae Gray, 1849
- Family Xenopeltidae Bonaparte, 1845
- Family Xenosauridae Cope, 1866
- Genus Aiolosaurus Gao & Norell, 2000 †
- Genus Baabdasaurus Arnold, Azar, Ineich & Nel, 2002 †
- Genus Bharatagama Evans, Prasad & Manhas, 2002 †
- Genus Bothriagenys Nydam, 2002 †
- Genus Conantophis Holman & Harrison, 2000 †
- Genus Cryptovaranoides Whiteside, Chambi-Trowell & Benton, 2022 †
- Genus Ctenomastax Gao & Norell, 2000 †
- Genus Dimekodontosaurus Nydam, 2002 †
- Genus Haasiophis Tchernov, Rieppel, Zaher, Polcyn & Jacobs, 2000 †
- Genus Hongshanxi Dong, Wang, Mou, Zhang & Evans, 2019 †
- Genus Hydrargysaurus Wick & Shiller, 2020 †
- Genus Hymenosaurus Gao & Norell, 2000 †
- Genus Indrasaurus O'Connor, Zheng, Dong, Wang, Wang, Zhang & Zhou, 2019 †
- Genus Jucaraseps Bolet & Evans, 2012 †
- Genus Megachirella Renesto & Posenato, 2003 †
- Genus Messelopython Zaher & Smith, 2020 †
- Genus Moqisaurus Dong, Wang & Evans, 2022 †
- Genus Myrmecodaptria Gao & Norell, 2000 †
- Genus Paleochelco Martinelli, Agnolín & Ezcurra, 2021 †
- Genus Parasaurillus Evans & Searle, 2002 †
- Genus Primaderma Nydam, 2000 †
- Genus Sauripes Lee, Lee, Fiorillo & Lü, 2018 †
- Genus Schillerosaurus Nydam, Chure & Evans, 2013 †
- Genus Temujinia Gao & Norell, 2000 †
- Genus Zapsosaurus Gao & Norell, 2000 †
- Order Synapsida (awaiting allocation)
- Order Synaptosauria (awaiting allocation) †
- Order Testudinata incertae sedis
- Order Testudines
- Order Tetrapodamorpha incertae sedis †
- Order Thalattosauria †
- Order Thalattosuchia †
- Order Thecodontia †
- Order Therapsida †
- Order Theriodontia †
- Order Trilophosauria †
- Order Younginiformes †
- Family Gracilisuchidae Butler, Sullivan, Ezcurra, Liu, Lecuona & Sookias, 2014 †
- Genus Anshunpes Xing, Klein, Lockley, Wu, Benton, Zeng & Romilio, 2020 †
- Genus Antarcticoolithus Legendre, Rubilar-Rogers, Musser, Davis, Otero, Vargas & Clarke, 2020 †
- 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
| |
