Between brackets is the number of accepted species
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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
- Class Mammalia
- Subclass Prototheria
- Subclass Theria
- Infraclass Eutheria
- Order Afrosoricida
- Order Amphitheriida †
- Order Anagalida †
- Order Arctostylopida †
- Order Artiodactyla
- Family Achaenodontidae †
- Family Aglaocetidae †
- Family Agriochoeridae Leidy, 1869 †
- Family Amphimerycidae Stehlin, 1910 †
- Family Anoplotheriidae Gray, 1821 †
- Family Anthracotheriidae Leidy, 1869 †
- Family Antiacodontidae †
- Family Antilocapridae Owen, 1841
- Family Antilopidae Gray, 1821 accepted as Bovidae Gray, 1821
- Family Archaeomerycidae Simpson, 1945 †
- Family Artiodactyla (awaiting allocation)
- Family Artiodactyla incertae sedis
- Family Bovidae Gray, 1821
- Genus Acronotus Smith, 1827 accepted as Alcelaphus de Blainville, 1816
- Genus Addax Rafinesque, 1815 accepted as Addax Laurillard, 1841
- Genus Addax Laurillard, 1841
- Genus Adenota Gray, 1847 accepted as Kobus Smith, 1840
- Genus Adjiderebos Dubrovo & Burchak-Abramovich, 1984 †
- Genus Aegagrus Pallas, 1776 accepted as Capra Linnaeus, 1758
- Genus Aegionomus Ranzani, 1820 accepted as Capra Linnaeus, 1758
- Genus Aegocera Berthold in Latreille, 1827 † accepted as Hippotragus Sundevall, 1845
- Genus Aegoceros Pallas, 1811 accepted as Capra Linnaeus, 1758
- Genus Aegoceros Wagner in Schreber, 1844 † accepted as Hippotragus Sundevall, 1845
- Genus Aegocerus Agassiz, 1846 accepted as Capra Linnaeus, 1758
- Genus Aegocoerus Gervais, 1859 † accepted as Hippotragus Sundevall, 1845
- Genus Aegoryx Pocock, 1918 accepted as Oryx Blainville, 1816
- Genus Aeotragus Dietrich, 1950 † accepted as Praedamalis Dietrich, 1950 †
- Genus Aepiceras Zittel, 1893 † accepted as Aepyceros Sundevall, 1847
- Genus Aepiceros Lorenz, 1894 † accepted as Aepyceros Sundevall, 1847
- Genus Aepyceros Sundevall, 1847
- Genus Afrotragus Geraads, 2017 †
- Genus Aftonius Hay, 1913 † accepted as Euceratherium Furlong & Sinclair, 1904 †
- Genus Aigererus Harris, 1838 accepted as Hippotragus Sundevall, 1845
- Genus Aigoceros Harris, 1838 accepted as Capra Linnaeus, 1758
- Genus Aigocerus Smith, 1827 † accepted as Hippotragus Sundevall, 1845
- Genus Alcelaphus de Blainville, 1816
- Genus Alcephalus Sclater in Anderson, 1891 accepted as Alcelaphus de Blainville, 1816
- Genus Alcephalus Brooke, 1876 accepted as Alcelaphus de Blainville, 1816
- Genus Alephis Gromolard, 1980 †
- Genus Ammelaphus Heller, 1912 accepted as Tragelaphus Blainville, 1816
- Genus Ammodorcas Thomas, 1891
- Genus Ammon de Blainville, 1816 accepted as Ovis Linnaeus, 1758
- Genus Ammotragus Blyth, 1840
- Genus Amnotragus Blyth in Gray, 1850 accepted as Ammotragus Blyth, 1840
- Genus Anoa Smith, 1827 accepted as Bubalus Smith, 1827
- Genus Antelopa Perry, 1811 accepted as Antilope Pallas, 1766
- Genus Antelope Murr, 1775 accepted as Antilope Pallas, 1766
- Genus Antelope Forster, 1790 accepted as Antilope Pallas, 1766
- Genus Anthelope Müller, 1773 accepted as Antilope Pallas, 1766
- Genus Antidorcas Sundevall, 1847
- Genus Antilopa Forster, 1790 accepted as Pelea Gray, 1851
- Genus Antilope Pallas, 1766
- Genus Antilopus Billberg, 1828 accepted as Antilope Pallas, 1766
- Genus Antilospira Teilhard de Chardin & Young, 1931 †
- Genus Aplocerus Smith, 1827 accepted as Oreamnos Rafinesque, 1817
- Genus Arabitragus Ropiquet & Hassanin, 2005 accepted as Arabitragus Ropiquet & Hassanin, 2017
- Genus Arabitragus Ropiquet & Hassanin, 2017
- Genus Aragoral Alcala & Morales, 1997 †
- Genus Argali Gray, 1850 accepted as Ovis Linnaeus, 1758
- Genus Aries Brisson, 1762
- Genus Aries Link, 1795 accepted as Capra Linnaeus, 1758
- Genus Asoletragus Palombo, Valli, Arca & Tuveri, 2006 †
- Genus Austritragus Heude, 1898 accepted as Capricornis Ogilby, 1837
- Genus Awashia Vrba, 1997 †
- Genus Baselaphus Jardine, 1836 accepted as Boselaphus de Blainville, 1816
- Genus Beatragus Heller, 1912
- Genus Benicerus Heintz, 1973 †
- Genus Bibos Hodgson, 1837 accepted as Bos Linnaeus, 1758
- Genus Bisbos Hodgson, 1841 accepted as Bos Linnaeus, 1758
- Genus Bison Smith, 1827
- Genus Bonasus Fitzinger, 1860 accepted as Bison Smith, 1827
- Genus Boocercus Thomas, 1902 accepted as Tragelaphus Blainville, 1816
- Genus Boopsis Teilhard de Chardin, 1936 †
- Genus Bootherium Leidy, 1852 †
- Genus Bos Linnaeus, 1758
- Genus Boselaphus de Blainville, 1816
- Genus Bosephalus Horsfield, 1851 accepted as Boselaphus de Blainville, 1816
- Genus Bosovis Kowarzik, 1911 accepted as Ovibos Blainville, 1816
- Genus Bouria Vrba, 1997 †
- Genus Brabovus Gentry, 1987 †
- Genus Bubalibos Heude, 1901 accepted as Bos Linnaeus, 1758
- Genus Bubalis Lichtenstein, 1814 accepted as Bubalus Smith, 1827
- Genus Bubalis Goldfuss, 1820 accepted as Alcelaphus de Blainville, 1816
- Genus Bubalus Smith, 1827
- Genus Bubalus Frisch, 1775 accepted as Bubalus Smith, 1827
- Genus Bubalus Ogilby, 1837 accepted as Alcelaphus de Blainville, 1816
- Genus Bucapra Rütimeyer, 1877 †
- Genus Budorcas Hodgson, 1850
- Genus Buffelus Rütimeyer, 1865 accepted as Bubalus Smith, 1827
- Genus Butragus Gray, 1872 accepted as Connochaetes Lichtenstein, 1814
- Genus Calliope Ogilby, 1837 accepted as Tragelaphus Blainville, 1816
- Genus Calotragus Sundevall, 1845 accepted as Raphicerus Smith, 1827
- Genus Cambayella Pilgrim, 1939 †
- Genus Capella Keyserling & Blasius, 1840 accepted as Rupicapra Blainville, 1816
- Genus Capra Linnaeus, 1758
- Genus Capraoryx Alekseeva, 1977 †
- Genus Caprella Marshall in Marshall-Trouessart, 1892 accepted as Rupicapra Blainville, 1816
- Genus Capricornis Ogilby, 1837
- Genus Capricornulus Heude, 1898 accepted as Capricornis Ogilby, 1837
- Genus Capricornus Gray, 1862 accepted as Capricornis Ogilby, 1837
- Genus Caprina Wagner in Schreber, 1844 accepted as Naemorhedus Smith, 1827
- Genus Caprotragoides Thenius, 1979 †
- Genus Caprovis Hodgson, 1847 accepted as Ovis Linnaeus, 1758
- Genus Catablepas Gray, 1821 accepted as Connochaetes Lichtenstein, 1814
- Genus Catoblepas Gray, 1825 accepted as Connochaetes Lichtenstein, 1814
- Genus Catoblephas Gray, 1827 accepted as Connochaetes Lichtenstein, 1814
- Genus Cemas Gloger, 1841 accepted as Naemorhedus Smith, 1827
- Genus Cemas Oken, 1816 accepted as Connochaetes Lichtenstein, 1814
- Genus Cephalolophus Wagner in Schreber, 1844 accepted as Cephalophus Smith, 1827
- Genus Cephalophella Knottnerus-Meyer, 1907 accepted as Cephalophus Smith, 1827
- Genus Cephalophia Knottnerus-Meyer, 1907 accepted as Cephalophus Smith, 1827
- Genus Cephalophidium Knottnerus-Meyer, 1907 accepted as Cephalophus Smith, 1827
- Genus Cephalophops Knottnerus-Meyer, 1907 accepted as Cephalophus Smith, 1827
- Genus Cephalophora Gray, 1842 accepted as Sylvicapra Ogilby, 1837
- Genus Cephalophorus Gray, 1842 accepted as Sylvicapra Ogilby, 1837
- Genus Cephalophula Knottnerus-Meyer, 1907 accepted as Cephalophus Smith, 1827
- Genus Cephalophus Smith, 1827
- Genus Cephalopus Smith, 1834 accepted as Cephalophus Smith, 1827
- Genus Cephalopus Sundevall, 1846 accepted as Cephalophus Smith, 1827
- Genus Cerophorus de Blainville, 1816 accepted as Boselaphus de Blainville, 1816
- Genus Cervicapra de Blainville, 1816 accepted as Redunca Smith, 1827
- Genus Cervicapra Sparrman, 1780 accepted as Antilope Pallas, 1766
- Genus Cobus Buckley, 1876 † accepted as Kobus Smith, 1840
- Genus Colus Wagner in Schreber, 1844 accepted as Saiga Gray, 1843
- Genus Connochaetes Lichtenstein, 1814
- Genus Connochetes Gray, 1843 accepted as Connochaetes Lichtenstein, 1814
- Genus Connochoetes Coues, 1889 accepted as Connochaetes Lichtenstein, 1814
- Genus Criotaurus Gloger, 1841 accepted as Ovibos Blainville, 1816
- Genus Criotherium Major in Lydekker, 1890 †
- Genus Dalmalis Brown, 1832 accepted as Alcelaphus de Blainville, 1816
- Genus Dama Gray, 1850
- Genus Damalacra Gentry, 1980 †
- Genus Damalavus Arambourg, 1958 † accepted as Damalavus Arambourg, 1959 †
- Genus Damalavus Arambourg, 1959 †
- Genus Damalborea Gentry, 2010 †
- Genus Damalis Gray, 1846 accepted as Damaliscus Sclater & Thomas, 1894
- Genus Damalis Smith, 1827 accepted as Alcelaphus de Blainville, 1816
- Genus Damalis Gray, 1872 accepted as Damaliscus Sclater & Thomas, 1894
- Genus Damaliscus Sclater & Thomas, 1894
- Genus Damalops Pilgrim, 1939 †
- Genus Demecquenemia Kostopoulos & Bernor, 2011 †
- Genus Deperetia Schaub, 1923 †
- Genus Deprezia Geraads & Amani, 1998 † accepted as Gazella de Blainville, 1816
- Genus Dmanisibos Burchak-Abramovich & Vekua, 1994 † accepted as Bison Smith, 1827
- Genus Doratoceros Lydekker, 1891 accepted as Taurotragus Wagner, 1855
- Genus Dorcadoryx Teilhard de Chardin & Trassaert, 1938 †
- Genus Dorcadoxa Pilgrim, 1939 †
- Genus Dorcas Gray, 1821 accepted as Gazella de Blainville, 1816
- Genus Dorcatragus Noack, 1894
- Genus Dorcotragus Sclater & Thomas, 1898 accepted as Dorcatragus Noack, 1894
- Genus Duboisia Stremme, 1911 †
- Genus Dytikodorcas Bouvrain & de Bonis, 2007 †
- Genus Ebusia Moyà-Solà, Quintana Cardona & Köhler, 2021 †
- Genus Egocerus Desmarest, 1822 † accepted as Hippotragus Sundevall, 1845
- Genus Elachistoceras Thomas, 1977 †
- Genus Eleotragus Gray, 1843 accepted as Redunca Smith, 1827
- Genus Eocerus Schlosser in Zittel, 1911 † accepted as Eotragus Pilgrim, 1939 †
- Genus Eosyncerus Vekua, 1972 †
- Genus Eotragus Pilgrim, 1939 †
- Genus Epileptobos Hooijer, 1956 †
- Genus Etruria Abbazzi, Delfino, Gallai, Trebini & Rook, 2008 †
- Genus Eucapra Camerano, 1916 accepted as Capra Linnaeus, 1758
- Genus Euceratherium Furlong & Sinclair, 1904 †
- Genus Eudorcas Fitzinger, 1869
- Genus Euibex Camerano, 1916 accepted as Capra Linnaeus, 1758
- Genus Euryceros Gray, 1850 accepted as Tragelaphus Blainville, 1816
- Genus Euthyceros Athanassiou, 2002 †
- Genus Fenhoryx Pei, 1958 †
- Genus Gallogoral Guérin, 1965 †
- Genus Gangicobus Pilgrim, 1939 †
- Genus Gangraia Kostopoulos, Sevim Erol, Yavuz & Mayda, 2021 †
- Genus Gasella Smith, 1827 accepted as Gazella de Blainville, 1816
- Genus Gauribos Heude, 1901 accepted as Bos Linnaeus, 1758
- Genus Gavaeus Horsfield, 1851 accepted as Bos Linnaeus, 1758
- Genus Gaveus Hodgson, 1847 accepted as Bos Linnaeus, 1758
- Genus Gazella de Blainville, 1816
- Genus Gazella Rafinesque, 1815 accepted as Gazella de Blainville, 1816
- Genus Gazella Lichtenstein, 1814 accepted as Gazella de Blainville, 1816
- Genus Gazella Pallas, 1769 accepted as Gazella de Blainville, 1816
- Genus Gazellospira Pilgrim & Schaub, 1938 †
- Genus Gentrytragus Azanza & Morales, 1994 †
- Genus Gidleya Cossmann, 1907 † accepted as Bootherium Leidy, 1852 †
- Genus Gona Deraniyagala, 1958 †
- Genus Gorgon Gray, 1850 accepted as Connochaetes Lichtenstein, 1814
- Genus Graecoryx Pilgrim & Hopwood, 1928 †
- Genus Grevenobos Crégut-Bonnoure & Tsoukala, 2017 †
- Genus Grimmia Laurillard, 1841 accepted as Sylvicapra Ogilby, 1837
- Genus Grysbock Knottnerus-Meyer, 1907 accepted as Raphicerus Smith, 1827
- Genus Guevei Gray, 1852 accepted as Philantomba Blyth in Cuvier, 1840
- Genus Hanhaicerus Huang, 1985 †
- Genus Haploceros Lydekker in Flower & Lydekker, 1891 accepted as Oreamnos Rafinesque, 1817
- Genus Haploceros Flower & Garson, 1884 accepted as Oreamnos Rafinesque, 1817
- Genus Haplocerus Wagner, 1844 accepted as Oreamnos Rafinesque, 1817
- Genus Heleotragus Kirk, 1865 accepted as Redunca Smith, 1827
- Genus Helicoceras Weithofer, 1888 † accepted as Prostrepsiceros Major, 1891 †
- Genus Helicophora Weithofer, 1889 † accepted as Prostrepsiceros Major, 1891 †
- Genus Helicophorus Zittel, 1893 † accepted as Prostrepsiceros Major, 1891 †
- Genus Helicotragus Palmer, 1903 † accepted as Prostrepsiceros Major, 1891 †
- Genus Helioceras Weithofer, 1889 † accepted as Prostrepsiceros Major, 1891 †
- Genus Helladodorcas Gentry, 2003 † accepted as Helladorcas Bouvrain, 1997 †
- Genus Helladorcas Bouvrain, 1997 †
- Genus Hemibos Rütimeyer, 1865 †
- Genus Hemistrepsiceros Pilgrim & Hopwood, 1928
- Genus Hemitragus Hodgson, 1841
- Genus Hemitragus Van der Hoeven, 1855
- Genus Hesperoceras Villalta & Crusafont Pairó, 1956 †
- Genus Hezhengia Qiu, Wang & Xie, 2000 †
- Genus Hilzheimeria Kretzoi & Kretzoi, 2000 † accepted as Capra Linnaeus, 1758
- Genus Hippelaphus Goldfuss, 1820
- Genus Hippelaphus Reichenbach, 1835
- Genus Hippotragus Sundevall, 1845
- Genus Hircus Brisson, 1762 accepted as Capra Linnaeus, 1758
- Genus Hircus Boddaert, 1785 accepted as Capra Linnaeus, 1758
- Genus Hispanodorcas Thomas, Morales & Heintz, 1982 †
- Genus Homoiodorcas Thomas, 1981 †
- Genus Huabeitragus Chen & Zhang, 2007 †
- Genus Hydaspicobus Pilgrim, 1939 †
- Genus Hydrotragus Gray, 1872 accepted as Tragelaphus Blainville, 1816
- Genus Hydrotragus Fitzinger, 1866 accepted as Kobus Smith, 1840
- Genus Hylarnus Thomas, 1906 accepted as Neotragus Smith, 1827
- Genus Hypsodontus Sokolov, 1949 †
- Genus Ibec Gervais, 1849 accepted as Capra Linnaeus, 1758
- Genus Ibex Pallas, 1776 accepted as Capra Linnaeus, 1758
- Genus Illingoceros †
- Genus Indoredunca Pilgrim, 1939 †
- Genus Insulotragus Bover & Alcover, 2005 †
- Genus Ioribos Vekua, 1968 †
- Genus Jamous Geraads, Blondel, Mackaye, Likius, Vignaud & Brunet, 2009 †
- Genus Kabulicornis Heintz & Thomas, 1981 †
- Genus Kemas Ogilby, 1837 accepted as Naemorhedus Smith, 1827
- Genus Kemas Gray, 1843 accepted as Pantholops Hodgson, 1834
- Genus Kipsigicerus Thomas, 1984 †
- Genus Kobikeryx Pilgrim, 1939 †
- Genus Kobus Smith, 1840
- Genus Kolus Gray, 1843 † accepted as Kobus Smith, 1840
- Genus Korin Gray, 1872
- Genus Korin Sclater & Thomas, 1898 accepted as Eudorcas Fitzinger, 1869
- Genus Koufotragus de Bonis & Bouvrain, 1996 †
- Genus Kubanotragus Gabuniya, 1973 †
- Genus Lantiantragus Chen & Zhang, 2004 †
- Genus Leptobos Rütimeyer, 1877 †
- Genus Leptoceros Wagner in Schreber, 1844 accepted as Gazella de Blainville, 1816
- Genus Limnotragus Sclater & Thomas, 1900 accepted as Tragelaphus Blainville, 1816
- Genus Limnotragus Pocock, 1900 accepted as Tragelaphus Blainville, 1816
- Genus Linxiatragus Wang et al., 2022 †
- Genus Liops Gidley, 1906 † accepted as Bootherium Leidy, 1852 †
- Genus Lithocranius Thomas, 1891 accepted as Litocranius Kohl, 1886
- Genus Lithotragus Heude, 1898 accepted as Capricornis Ogilby, 1837
- Genus Litocranius Kohl, 1886
- Genus Lyrocerus Teilhard de Chardin & Trassaert, 1938 †
- Genus Macrotragus Chen & Zhang, 2007 †
- Genus Madoka Gray, 1872 accepted as Madoqua Ogilby, 1837
- Genus Madoqua Ogilby, 1837
- Genus Majoreas Kostopoulos, 2004 †
- Genus Makapania Wells & Cooke, 1957 †
- Genus Maremmia Hürzeler, 1983 †
- Genus Matschiea Knottnerus-Meyer, 1907 accepted as Nanger Lataste, 1885
- Genus Megalotragus van Hoepen, 1932 †
- Genus Megalovis Schaub, 1924 †
- Genus Megapecoripeda Kordos, 1985 †
- Genus Memina Gray, 1821 accepted as Neotragus Smith, 1827
- Genus Meminna Agassiz, 1842 accepted as Neotragus Smith, 1827
- Genus Menelikia Arambourg, 1941 †
- Genus Mesembriacerus Bouvrain, 1975 †
- Genus Mesembriportax Gentry, 1974 †
- Genus Microbos Heude, 1901 accepted as Bos Linnaeus, 1758
- Genus Microtragus Andres, 1926 † accepted as Sporadotragus Kretzoi, 1968 †
- Genus Minytragus Gloger, 1841 accepted as Neotragus Smith, 1827
- Genus Miotragocerus Stromer, 1928 †
- Genus Musimon Pallas, 1776 accepted as Ovis Linnaeus, 1758
- Genus Musmon Schrank, 1798 accepted as Ovis Linnaeus, 1758
- Genus Musmon Severtzov, 1873 accepted as Ovis Linnaeus, 1758
- Genus Myotragus Bate, 1909
- Genus Naemorhaedus Jardine, 1836 accepted as Naemorhedus Smith, 1827
- Genus Naemorhedus Smith, 1827
- Genus Naemorrhaedus Trouessart, 1898 accepted as Naemorhedus Smith, 1827
- Genus Nagor Laurillard, 1841 accepted as Redunca Smith, 1827
- Genus Namacerus Morales, Soria, Pickford & Nieto, 2003 †
- Genus Namibiomeryx Morales, Soria & Pickford, 1995 †
- Genus Nanger Lataste, 1885
- Genus Nanguer Knottnerus-Meyer, 1907 accepted as Nanger Lataste, 1885
- Genus Nanotragus Sundevall, 1845 accepted as Neotragus Smith, 1827
- Genus Nemorhaedus Hodgson, 1841 accepted as Naemorhedus Smith, 1827
- Genus Nemorhedus Agassiz, 1846 accepted as Naemorhedus Smith, 1827
- Genus Nemorhoedus Hodgson, 1847 accepted as Naemorhedus Smith, 1827
- Genus Nemorrhaedus Trouessart, 1898 accepted as Naemorhedus Smith, 1827
- Genus Nemorrhedus Gray, 1843 accepted as Naemorhedus Smith, 1827
- Genus Nemotragus Heude, 1898 accepted as Capricornis Ogilby, 1837
- Genus Neotetragus †
- Genus Neotragocerus Matthew & Cook, 1909 †
- Genus Neotragus Smith, 1827
- Genus Nesogoral Gliozzi & Malatesta, 1981 †
- Genus Nesotragus von Düben, 1846 accepted as Neotragus Smith, 1827
- Genus Nilgiritragus Ropiquet & Hassanin, 2005 accepted as Nilgiritragus Ropiquet & Hassanin, 2017
- Genus Nilgiritragus Ropiquet & Hassanin, 2017
- Genus Nisidorcas Bouvrain, 1979 †
- Genus Nitidarcus Vrba, 1997 †
- Genus Norbertia Köhler, Moya-Sola & Morales, 1995 †
- Genus Nototragus Thomas & Schwann, 1906 accepted as Raphicerus Smith, 1827
- Genus Novibos Coolidge, 1940 accepted as Bos Linnaeus, 1758
- Genus Numidocapra Arambourg, 1949 †
- Genus Nyala Heller, 1912 accepted as Tragelaphus Blainville, 1816
- Genus Oegoceros Lesson, 1827 accepted as Capra Linnaeus, 1758
- Genus Oegocerus Lesson, 1842 † accepted as Hippotragus Sundevall, 1845
- Genus Oioceros Gaillard, 1902 †
- Genus Olonbulukia Bohlin, 1937 †
- Genus Onototragus Heller, 1913 accepted as Kobus Smith, 1840
- Genus Onotragus Gray, 1872 accepted as Kobus Smith, 1840
- Genus Onyx Gray, 1821 accepted as Oryx Blainville, 1816
- Genus Opsibos Kretzoi & Kretzoi, 2000 † accepted as Boopsis Teilhard de Chardin, 1936 †
- Genus Orchonoceros Vislobokova, 1979 †
- Genus Oreades Schinz, 1845 accepted as Boselaphus de Blainville, 1816
- Genus Oreamnos Rafinesque, 1817
- Genus Oreamnus Agassiz, 1846 accepted as Oreamnos Rafinesque, 1817
- Genus Oreamnus Elliot, 1901 accepted as Oreamnos Rafinesque, 1817
- Genus Oreas Desmarest, 1822 accepted as Taurotragus Wagner, 1855
- Genus Oreobia Agassiz, 1846 accepted as Ourebia Laurillard, 1841
- Genus Oreodorcas Heller, 1912 accepted as Redunca Smith, 1827
- Genus Oreonagor Pomel, 1895 †
- Genus Oreotragus Smith, 1834
- Genus Orias Lydekker, 1894 accepted as Taurotragus Wagner, 1855
- Genus Oribia Kirby, 1899 accepted as Ourebia Laurillard, 1841
- Genus Oritragus Gloger, 1841 accepted as Oreotragus Smith, 1834
- Genus Orix Lesson, 1842 accepted as Oryx Blainville, 1816
- Genus Orthaegoceros Trouessart, 1905 accepted as Capra Linnaeus, 1758
- Genus Oryx Blainville, 1816
- Genus Ourebia Laurillard, 1841
- Genus Ouzocerus Bouvrain & de Bonis, 1986 †
- Genus Ovibos Blainville, 1816
- Genus Ovis Linnaeus, 1758
- Genus Ozanna Reichenbach, 1845 accepted as Hippotragus Sundevall, 1845
- Genus Pachyceros Gromova, 1936 accepted as Ovis Linnaeus, 1758
- Genus Pachygazella Teilhard de Chardin & Young, 1931 †
- Genus Pachyportax Pilgrim, 1937 †
- Genus Pachytragus Schlosser, 1904 †
- Genus Palaeoreas Gaudry, 1861 †
- Genus Palaeoryx Gaudry, 1861 †
- Genus Palaeotragiscus Broom, 1934 †
- Genus Palaeotragiscus Broom, 1930 † accepted as Palaeotragiscus Broom, 1934 †
- Genus Panthalops Reichenbach, 1845 accepted as Pantholops Hodgson, 1834
- Genus Pantholops Hodgson, 1834
- Species Pantholops hodgsoni
- Species Pantholops hodgsonii (Abel, 1826)
- Genus Parabos Arambourg & Piveteau, 1929 †
- Genus Parabos Barbour & Schultz, 1941 † accepted as Platycerabos Barbour & Schultz, 1942 †
- Genus Parabubalis Gromova, 1932 †
- Genus Paraprotoryx Bohlin, 1935 †
- Genus Parapseudotragus Sokolov, 1961 †
- Genus Parastrepsiceros Vekua in Gabunia & Vekua, 1968 †
- Genus Paratragoceros Sokolov, 1949 †
- Genus Parestigorgon Dietrich, 1950 †
- Genus Parmularius Hopwood, 1934 †
- Genus Parurmiatherium Sickenburg, 1932 †
- Genus Pecoripeda †
- Genus Pediotragus Fitzinger, 1861 accepted as Raphicerus Smith, 1827
- Genus Pelea Gray, 1851
- Genus Pelorovis Reck, 1928 †
- Genus Perimia Pilgrim, 1939 †
- Genus Pheraios Kostopoulos & Koufos, 2006 †
- Genus Philantomba Blyth in Cuvier, 1840
- Genus Phronetragus Gabuniya, 1955 †
- Genus Planiceros Gray, 1872 accepted as Syncerus Hodgson, 1847
- Genus Platuprosopos Filhol, 1888 † accepted as Strogulognathus Filhol, 1890 †
- Genus Platybos Pilgrim, 1939 †
- Genus Platycerabos Barbour & Schultz, 1942 †
- Genus Plesiaddax Schlosser, 1903
- Genus Pliodorcas Kretzoi, 1977 †
- Genus Plioportax Korotkevich, 1975 †
- Genus Pliotragus Kretzoi, 1941 †
- Genus Poephagus Gray, 1843 accepted as Bos Linnaeus, 1758
- Genus Poloeoryx Lapouge, 1894 † accepted as Palaeoryx Gaudry, 1861 †
- Genus Pontoceros Vereshchagin, Alekseeva, David & Baigusheva, 1971 †
- Genus Portax Smith, 1827 accepted as Boselaphus de Blainville, 1816
- Genus Potamotragus Gray, 1872 accepted as Cephalophus Smith, 1827
- Genus Praedamalis Dietrich, 1950 †
- Genus Praeovibos Staudinger, 1908 †
- Genus Preptoceras Furlong, 1905 †
- Genus Proamphibos Pilgrim, 1939 †
- Genus Probison Sahni & Khan, 1968 †
- Genus Proboselaphus Matsumoto, 1915 †
- Genus Probubalus Rütimeyer, 1865 accepted as Bubalus Smith, 1827
- Genus Procamptoceras Schaub, 1924 †
- Genus Procapra Hodgson, 1846
- Genus Procobus Chomenko, 1913 †
- Genus Prodamaliscus Schlosser, 1904 †
- Genus Prodorcas Pocock, 1918 accepted as Procapra Hodgson, 1846
- Genus Proleptobos Pilgrim, 1913 †
- Genus Prosinotragus Bohlin, 1935 †
- Genus Prostrepsiceros Major, 1891 †
- Genus Protobison Burchak-Abramovich, Gadzhiev & Vekua, 1980 †
- Genus Protoryx Major, 1891 †
- Genus Protragelaphus Dames, 1883 †
- Genus Protragoceros Depéret, 1887 † accepted as Protragocerus Depéret, 1887 †
- Genus Protragocerus Depéret, 1887 †
- Genus Protragoceus Depéret, 1887 † accepted as Protragocerus Depéret, 1887 †
- Genus Pseudobos Schlosser, 1903
- Genus Pseudoeotragus van der Made, 1989 †
- Genus Pseudois Hodgson, 1846
- Genus Pseudoïs Hodgson, 1846 accepted as Pseudois Hodgson, 1846
- Genus Pseudokobus Fitzinger, 1869 accepted as Kobus Smith, 1840
- Genus Pseudonovibos Peter & Feiler, 1994 accepted as Bos Linnaeus, 1758
- Genus Pseudoryx Dung, Giao, Chinh, Tuoc, Arctander & MacKinnon, 1993
- Genus Pseudotragus Schlosser, 1904 †
- Genus Pseudovis Gill, 1872 accepted as Pseudois Hodgson, 1846
- Genus Pultiphagonides Hopwood, 1934 †
- Genus Pusillutragus Mennecart, Duranthon & Costeur, 2024 †
- Genus Quadriscopa Fitzinger, 1869 accepted as Ourebia Laurillard, 1841
- Genus Qurebia Moore, 1947 accepted as Ourebia Laurillard, 1841
- Genus Qurliqnoria Bohlin, 1937 †
- Genus Rabaticeras Ennouchi, 1953 †
- Genus Raphiceros accepted as Raphicerus Smith, 1827
- Genus Raphicerus Smith, 1827
- Genus Redunca Smith, 1827
- Genus Rhaphiceros Lydekker, 1897 accepted as Raphicerus Smith, 1827
- Genus Rhaphicerus Lönnberg, 1908 accepted as Raphicerus Smith, 1827
- Genus Rhaphocerus Smith, 1827 accepted as Raphicerus Smith, 1827
- Genus Rhaphocerus Agassiz, 1846 accepted as Raphicerus Smith, 1827
- Genus Rhynchotragus Neumann, 1905 accepted as Madoqua Ogilby, 1837
- Genus Rhynotragus Reck, 1935 † accepted as Megalotragus van Hoepen, 1932 †
- Genus Robus Zittel, 1893 † accepted as Kobus Smith, 1840
- Genus Rupicapra Blainville, 1816
- Genus Rupicapra Frisch, 1775 accepted as Rupicapra Blainville, 1816
- Genus Rusingoryx Pickford & Thomas, 1984 †
- Genus Ruticeros Pilgrim, 1939 †
- Genus Rutitherium Filhol, 1877 † accepted as Rutitherium Filhol, 1876 †
- Genus Saheloryx Geraads, Blondel, Likius, Mackaye, Vignaud & Brunet, 2008 †
- Genus Saiga Gray, 1843
- Genus Samodorcas Bouvrain & de Bonis, 1985 †
- Genus Samokeros Solounias, 1981 †
- Genus Samotragus Sickenberg, 1936 †
- Genus Scaphoceros Osgood, 1905 † accepted as Bootherium Leidy, 1852 †
- Genus Scopophorus Gray, 1846 accepted as Ourebia Laurillard, 1841
- Genus Selenoportax Pilgrim, 1937 †
- Genus Shaanxispira Liu, Li & Zhai, 1978 †
- Genus Sigmoceros Heller, 1912 accepted as Alcelaphus de Blainville, 1816
- Genus Simatherium Dietrich, 1941 †
- Genus Sinapocerus Tekkaya, 1974 †
- Genus Sinapodorcas Bouvrain, Sen & Thomas, 1994 †
- Genus Sinocapra Chen, 1991 †
- Genus Sinomioceros Chen, 1988 †
- Genus Sinopalaeoceros Chen, 1988 †
- Genus Sinoreas Teilhard de Chardin & Trassaert, 1938 †
- Genus Sinoryx Teilhard de Chardin & Trassaert, 1938 †
- Genus Sinotragus Bohlin, 1935 †
- Genus Sivacapra Pilgrim, 1939 †
- Genus Sivaceros Pilgrim, 1937
- Genus Sivacobus Pilgrim, 1939 †
- Genus Sivadenota Pilgrim, 1939 †
- Genus Sivaportax Pilgrim, 1939 †
- Genus Sivatragus Pilgrim, 1939 †
- Genus Sivoreas Pilgrim, 1939 †
- Genus Sivoryx Pilgrim, 1939 †
- Genus Skoufotragus Kostopoulos, 2009 †
- Genus Skouraia Geraads, El Boughabi & Zouhri, 2012 †
- Genus Smertiobos Duvernois, 1990 † accepted as Leptobos Rütimeyer, 1877 †
- Genus Soergelia Schaub, 1952 †
- Genus Spinigera Lesson, 1842 accepted as Neotragus Smith, 1827
- Genus Spirocerus Boule & Chardin, 1928 †
- Genus Sporadotragus Kretzoi, 1968 †
- Genus Strepriceros Rafinesque, 1817 accepted as Tragelaphus Blainville, 1816
- Genus Strepsicerastes Knottnerus-Meyer, 1903 accepted as Tragelaphus Blainville, 1816
- Genus Strepsicerella Zukowsky, 1910 accepted as Tragelaphus Blainville, 1816
- Genus Strepsiceros Rafinesque, 1815 accepted as Tragelaphus Blainville, 1816
- Genus Strepsiportax Pilgrim, 1937
- Genus Strepticeros Blyth, 1869 accepted as Tragelaphus Blainville, 1816
- Genus Strogulognathus Filhol, 1890 †
- Genus Stryfnotherium Kostopoulos & Soubise, 2018 †
- Genus Sylvicapra Ogilby, 1837
- Genus Symbos Osgood, 1905 † accepted as Bootherium Leidy, 1852 †
- Genus Syncera Lydekker, 1898 accepted as Syncerus Hodgson, 1847
- Genus Synceros Gray, 1872 accepted as Syncerus Hodgson, 1847
- Genus Syncerus Hodgson, 1847
- Genus Tachytragus Schlosser, 1904 † accepted as Pachytragus Schlosser, 1904 †
- Genus Taurotragus Wagner, 1855
- Genus Taurus Storr, 1780 accepted as Bos Linnaeus, 1758
- Genus Tavridia Vislobokova, 2023 †
- Genus Tchadotragus Geraads, Blondel, Likius, Mackaye, Vignaud & Brunet, 2008 †
- Genus Tchaltacerus Bouvrain, 1998 †
- Genus Terphone Gray, 1872 accepted as Cephalophus Smith, 1827
- Genus Terpone Gray, 1872 accepted as Cephalophus Smith, 1827
- Genus Tethytragus Azanza & Morales, 1994 †
- Genus Tetracera McMurtrie in McMurtrie-Cuvier, 1831 accepted as Tetracerus Leach, 1825
- Genus Tetraceras Sundevall, 1846 accepted as Tetracerus Leach, 1825
- Genus Tetraceros Brookes, 1827 accepted as Tetracerus Leach, 1825
- Genus Tetracerus Leach, 1825
- Genus Thaleroceros Reck, 1937 †
- Genus Torticornis Dmitrieva, 1977 †
- Genus Tossunnoria Bohlin, 1937 †
- Genus Trachelocele Ellerman & Morrison-Scott, 1951 accepted as Gazella de Blainville, 1816
- Genus Tragelaphus Blainville, 1816
- Genus Tragelaphus Ogilby, 1836
- Genus Tragoceridus Kretzoi, 1968
- Genus Tragocerus Gaudry, 1861 †
- Genus Tragomma Hodgson, 1848 accepted as Gazella de Blainville, 1816
- Genus Tragoportax Pilgrim, 1937 †
- Genus Tragops Hodgson, 1847 accepted as Gazella de Blainville, 1816
- Genus Tragopsis Fitzinger, 1869 accepted as Gazella de Blainville, 1816
- Genus Tragoreas Schlosser, 1908 †
- Genus Tragospira Kretzoi, 1954 †
- Genus Traguelaphus Pomel, 1898 accepted as Ammotragus Blyth, 1840
- Genus Tragulus Smith, 1827
- Genus Tragulus Ogilby, 1837 accepted as Neotragus Smith, 1827
- Genus Tragus Schrank, 1798 accepted as Capra Linnaeus, 1758
- Genus Trogocerus Gaudry, 1861
- Genus Turcocerus Köhler, 1988 †
- Genus Turkanatragus Geraads, 2017 †
- Genus Turocapra Beaux, 1949 accepted as Capra Linnaeus, 1758
- Genus Turritragus Abbazzi, Delfino, Gallai, Trebini & Rook, 2008 †
- Genus Turus Hilzheimer in Hilzheimer & Heck, 1916 † accepted as Capra Linnaeus, 1758
- Genus Tyrrhenotragus Hürzeler & Engesser, 1976 †
- Genus Udabnocerus Burchak-Abramovich & Gabashvili, 1968 †
- Genus Ugandax Cooke & Coryndon, 1970 †
- Genus Uribos Heude, 1901 accepted as Bos Linnaeus, 1758
- Genus Urmiabos Burtchak-Abramovitch, 1950 †
- Genus Urmiatherium Rodler, 1888 †
- Genus Urotragus Gray, 1871 accepted as Naemorhedus Smith, 1827
- Genus Urus Swainson, 1835 † accepted as Bison Smith, 1827
- Genus Urus C.H. Smith, 1827 accepted as Bos Linnaeus, 1758
- Genus Urus Bojanus, 1827 accepted as Bison Smith, 1827
- Genus Vishnucobus Pilgrim, 1939 †
- Genus Vishnumeryx Pilgrim, 1939 †
- Genus Wellsiana Vrba, 1987 †
- Genus Xenocephalus Leakey, 1965 † accepted as Megalotragus van Hoepen, 1932 †
- Genus Yakopsis Kretzoi, 1954 †
- Genus Zephyreduncinus Vrba & Haile-Selassie, 2006 †
- Family Bunomerycidae †
- Family Cainotheriidae Cope, 1881 †
- Family Camelidae Gray, 1821
- Family Cebochoeridae Lydekker †
- Family Cervidae Gray, 1821
- Family Cervoidea incertae sedis
- Family Choeropotamidae Owen, 1845 †
- Family Climacoceridae †
- Family Dacrytheriidae Deperet, 1917 †
- Family Diacodexeidae †
- Family Dichobunidae Gill, 1872 †
- Family Diorocetidae †
- Family Doliochoeridae Simpson, 1945 †
- Family Dromomerycidae Frick, 1937 †
- Family Entelodontidae Lydekker, 1883 †
- Family Entolodontidae †
- Family Gelocidae Schlosser, 1886 †
- Family Giraffidae Gray, 1821
- Family Giraffoidea incertae sedis
- Family Haplobunodontidae Pilgrim, 1941 †
- Family Helohyidae Marshall, 1877 †
- Family Hippopotamidae Gray, 1821
- Family Homacodontidae Marsh, 1849 †
- Family Hoplitomerycidae †
- Family Hypertragulidae Cope, 1879 †
- Family Lagomerycidae Pilgrim, 1941 † accepted as Cervidae Gray, 1821
- Family Leptochoeridae Marsh, 1894 †
- Family Leptomerycidae Zittel, 1893 †
- Family Llanocetidae Mitchell, 1989 †
- Family Lophiomerycidae Janis, 1987 †
- Family Merycoidodontidae Thorpe, 1923 †
- Family Mixtotheriidae Pearson, 1927 †
- Family Moschidae Gray, 1821
- Family Oreodontidae † accepted as Merycoidodontidae Thorpe, 1923 †
- Family Oromerycidae Gazin, 1955 †
- Family Pakicetidae Thewissen et al., 1996 †
- Family Palaeochoeridae †
- Family Palaeomerycidae Lydekker, 1883 †
- Family Pelocetidae †
- Family Praetragulidae Vislobokova, 2001 †
- Family Prolibytheriidae Sánchez et al., 2019 †
- Family Protoceratidae Marsh, 1891 †
- Family Raoellidae Sahni, 1981 †
- Family Ruminantia incertae sedis
- Family Sanitheriidae †
- Family Siderochoeridae Pickford, 2017 †
- Family Simocetidae Fordyce, 2002 †
- Family Suidae Gray, 1821
- Family Tapirulidae Cope, 1879 †
- Family Tayassuidae Palmer, 1897
- Family Tragulidae Milnes-Edwards, 1864
- Family Triceromerycidae †
- Family Xiphodontidae Flower, 1883 †
- Genus Acoessus Cope, 1881 †
- Genus Acoëssus Cope, 1881 † represented as Acoessus Cope, 1881 †
- Genus Andrewsarchus Osborn, 1924 †
- Genus Bugtimeryx Ginsburg, Morales & Soria, 2001 †
- Genus Dimidiomeryx Sánchez, Cantalapiedra, DeMiguel, Azanza, Strani & Morales, 2024 †
- Genus Encrotaphus Gore, 1874 † accepted as Eucrotaphus Leidy, 1850 †
- Genus Eucrotaphus Leidy, 1850 †
- Genus Hadrohyus Leidy, 1872 †
- Genus Orangemeryx Morales, Soria & Pickford, 1999 †
- Genus Shilinhyus Wang, Ji, Zhang, Wang, Chen, Hu & Yang, 2025 †
- Genus Sperrgebietomeryx Morales, Soria & Pickford, 1999 †
- Genus Tuscomeryx Abbazzi, 2001 †
- Order Asioryctitheria †
- Order Astrapotheria †
- Order Bellua accepted as Perissodactyla
- Order Bibymalagasia †
- Order Carnivora
- Order Carnivoramorpha incertae sedis †
- Order Cetacea
- Order Chiroptera
- Order Cimolesta †
- Order Cingulata
- Order Condylarthra †
- Order Creodonta †
- Order Dermoptera
- Order Desmostylia †
- Order Dinocerata †
- Order Edentata accepted as Eutheria
- Order Embrithopoda †
- Order Erinaceomorpha
- Order Eulipotyphla
- Order Eutheria (awaiting allocation)
- Order Hyracoidea
- Order Insectivora accepted as Eutheria
- Order Lagomorpha
- Order Leptictida †
- Order Lipotyphla † accepted as Eulipotyphla
- Order Litopterna †
- Order Macroscelidea
- Order Mesonychia † accepted as Mesonychia †
- Order Mesonychia †
- Order Mimotonida †
- Order Mixodontia †
- Order Notopterna † accepted as Litopterna †
- Order Notoungulata †
- Order Pantodonta † accepted as Cimolesta †
- Order Pantolesta † accepted as Cimolesta †
- Order Perissodactyla
- Order Pholidota
- Order Pilosa
- Order Primates
- Order Proboscidea
- Order Procreodi †
- Order Proteutheria † accepted as Eutheria
- Order Ptolemaiida †
- Order Pyrotheria †
- Order Rodentia
- Order Scandentia
- Order Simplicidentata incertae sedis †
- Order Sirenia
- Order Soricomorpha
- Order Taeniodonta † accepted as Cimolesta †
- Order Tillodontia † accepted as Cimolesta †
- Order Tubulidentata
- Order Xenungulata †
- Family Acreodi incertae sedis †
- Family Endotheriidae Shikama, 1947 †
- Family Heterosoricidae Viret & Zapfe, 1951 †
- Family Horolodectidae Scott, 2019 †
- Family Miacidae Cope, 1880 †
- Family Nesophontidae
- Family Ocepeiidae Gheerbrant in Gheerbrant et al., 2014 †
- Family Otlestidae Nessov, 1985 † accepted as Eutheria
- Family Soricomorpha incertae sedis
- Family Sororyctidae Gingerich, Arif, Hussain & Abbas, 1998 †
- Family Tenrecoidea incertae sedis
- Family Tenrecomorpha incertae sedis
- Family Vastanidae Bajpai, Kapur, Das, Tiwari, Saravanan & Sharma, 2005 †
- Family Zhelestidae Nessov, 1990 †
- Genus Acristatherium Hu, Meng, Li & Wang, 2010 †
- Genus Adrastotherium Ameghino, 1887 †
- Genus Akenodon Aymard, 1856 †
- Genus Bayshinoryctes Lopatin & Averianov, 2023 †
- Genus Beleutinus Bazhanov, 1972 †
- Genus Bobolestes Nessov, 1985 †
- Genus Ceruttia Tomiya, 2013 †
- Genus Cokotherium Wang, Hoffmann, Wang & Wang, 2022 †
- Genus Dehnaripus Abbassi, Salehi Tinooni, Ghorbani Dehnavi, Shakeri & Eshaghi, 2024 †
- Genus Durlstodon Sweetman, Smith & Martill, 2017 †
- Genus Durlstotherium Sweetman, Smith & Martill, 2017 †
- Genus Eutrochodon Roth, 1903 †
- Genus Ganungulatum Ting, Meng, Li, Wang, Tong, Schiebout, Koch, Clyde & Bowen, 2007 †
- Genus Hyotheridium Gregory & Simpson, 1926 †
- Genus Idiogenomys Ostrander, 1983 †
- Genus Indoclemensia Wilson Mantilla et al., 2022 †
- Genus Juramaia Luo, Yuan, Meng & Ji, 2011 †
- Genus Microtherulum Wang & Wang, 2023 †
- Genus Montanalestes Cifelli, 1999 †
- Genus Moropopus Abbassi, Salehi Tinooni, Ghorbani Dehnavi, Shakeri & Eshaghi, 2024 †
- Genus Murtoilestes Averianov & Skutschus, 2001 †
- Genus Ndamathaia Jacobs, Anyonge & Barry, 1987 †
- Genus Nosella Peláez-Campomanes in Lopez-Martinez & Pelaez-Campomanes, 1999 †
- Genus Obtususdon Xu, 1977 †
- Genus Otlestes Nessov, 1985 † accepted as Bobolestes Nessov, 1985 †
- Genus Pahelia Zack, Rose, Holbrook, Kumar, Rana & Smith, 2021 †
- Genus Prokennalestes Kielan-Jaworowska & Dashzeveg, 1989 †
- Genus Prozalambdalestes Trofimov in Belyaeva, Trofimov & Reshetov, 1974 † accepted as Prokennalestes Kielan-Jaworowska & Dashzeveg, 1989 †
- Genus Radinskya McKenna, Minchen, Ting & Luo, 1989 †
- Genus Sazlestes Nessov, 1997 †
- Genus Sinomylus McKenna & Meng, 2001 †
- Genus Talquinodus Kramarz, Bellosi, Bond, Forasiepi, Gaillard & Krause, 2024 †
- Genus Thoracotherion Gray, 1869 †
- Genus Veratalpa Ameghino, 1905 †
- Genus Walshius Tomiya, 2013 †
- Genus Wania Wang, 1995 †
- Genus Wanotherium Tang & Yan, 1976 †
- Infraclass Marsupialia accepted as Metatheria
- Infraclass Metatheria
- Infraclass Placentalia accepted as Eutheria
- Order Dryolestida †
- Order Eupantotheria † accepted as Dryolestida †
- Order Spalacotherioidea † accepted as Symmetrodonta †
- Order Symmetrodonta †
- Order Uranotheria accepted as Eutheria
- Family Holoclemensiidae Aplin & Archer, 1987 †
- Family Kermackiidae Butler, 1978 †
- Family Picopsidae Fox, 1980 †
- Family Plicatodontidae Ameghino, 1904 †
- Family Potamotelsidae Nessov, 1987 †
- Genus Anisorhizus Ameghino, 1902 †
- Genus Chunnelodon Ensom & Sigogneau-Russell, 1998 †
- Genus Dakotadens Eaton, 1993 †
- Genus Magnimus Sigogneau-Russell, 1999 †
- Genus Minimus Sigogneau-Russell, 1999 †
- Genus Paleomolops Cifelli, 1994 †
- Genus Patagomaia Chimento, Agnolín, García-Marsà, Manabe, Tsuihiji & Novas, 2024 †
- Subclass Theriiformes †
- Order Mammalia (awaiting allocation)
- Order Mammalia incertae sedis
- Family Meridiolestida incertae sedis †
- Genus Bulatia Gabunia & Shevyreva, 1994 †
- Genus Eomaia Ji, Luo, Yuan, Wible, Zhang & Georgi, 2002 †
- Genus Florentinoameghinia Simpson, 1932 †
- Genus Hypomylos Sigogneau-Russell, 1992 †
- Genus Tribotherium Sigogneau-Russell, 1991 †
- Genus Zygiocuspis Cifelli, 1990 †
- 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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