Chordata
Abiadisaurus Warren, Yates, Damiani, Goodwin, Wood & Schaff, 1998
Acanthostegidae Jarvik, 1952
Acanthostoma Credner, 1883
Acerastea Warren & Hutchinson, 1987
Acherontiscidae Carroll, 1967
Acholotes Baird, 1849
Actibates Jardine, 1853
Actinodontidae
Acutipes Heyler & Lessertisseur, 1963
Adelogyrinidae Brough & Brough, 1967
Adenoderma Fritsch, 1877
Aelurolalax Dubois, 1987
Agostopus Gilmore, 1926
Allomesotriton Freytag, 1983
Allopus Marsh, 1894
Almasauridae Dutuit, 1972
Almasaurus Dutuit, 1973
Amblyodon Dawson, 1882
Amblyopoditta Strand, 1935
Amblyopus Gilmore, 1927
Amerana Dubois, 1992
Ammobatrachus Gilmore, 1928
Ammoryctis Lataste, 1879
Amo Dubois, 1992
Amphibamidae
Amphicoelosaurus Barkas, 1873
Amphisauroides Haubold, 1970
Amphisauropus Haubold, 1970
Amphisaurus Barkas, 1870
Amphiumophis Werner, 1901
Anchylorana Taylor, 1942
Ancudia Philippi, 1902
Ancylopus Carman, 1928
Angusaurus Getmanov, 1989
Anisodexis Cope, 1882
Anisopus Owen, 1842
Anomoeichnus Carman, 1928
Anoualerpeton Gardner, Evans & Sigogneau-Russell, 2003
Anthracerpetum Lydekker, 1890
Anthracopus Lorenz, 1879
Anthracosauridae Cope, 1875
Anthrakerpeton Owen, 1865
Anura
Aornerpeton Lund, 1978
Aquiloniferus Bjerring, 1999
Aralobatrachus Nessov, 1981
Aranetsia Novikov & Shishkin, 1992
Archegosauridae Lydekker, 1885
Archeriidae Kuhn, 1965
Arethusa Bonaparte, 1838
Arizonerpeton Thayer, 1985
Arotus Cope, 1877
Aruncus Philippi, 1902
Asaphestera Steen, 1934
Asperipes Matthew, 1903
Asphaerium Cope, 1865
Asterodactylus Wagler, 1830
Astrodactylus Hogg, 1839
Atelophryne Boulenger, 1905
Atopotera Steen, 1934
Auletes Burmeister, 1837
Auletris Wagler, 1830
Aurorana Dubois, 1992
Austropelor Longman, 1941
Aversor Gubin, 1985
Aviturus Gubin, 1991
Axolot Bonaparte, 1831
Axolotes Owen, 1844
Axolotus Gray, 1850
Baliopygus Schulze, 1891
Baphetidae
Barillopus Matthew, 1903
Baropezia Matthew, 1903
Baropus Marsh, 1894
Barypodus Gilmore, 1926
Bathignathus Damiani & Jeannot, 2002
Bathysiredon Taylor, 1940
Batrachichnus Woodworth, 1900
Batrachiderpetontidae
Batrachocephalus Fric, 1876
Batrachoides Hitchcock, 1858
Batrachosaurus Fitzinger, 1843
Batrachosuchoides Shishkin, 1966
Batrachychthis Pizarro, 1876
Batrachychthys Pizarro, 1876
Batrichnis Harkness, 1851
Benthosaurus Efremov, 1929
Benthosuchidae Efremov, 1940
Berdmorea Stoliczka, 1872
Biarmica Ivachnenko, 1987
Bissektia Nessov, 1981
Boana Gray, 1825
Bogdania Yang, 1978
Boina Agassiz, 1846
Bolterpeton Anderson & Reisz, 2003
Borborophagus Branson & Mehl, 1929
Bourretia Dubois, 1987
Brachydectes Cope, 1868
Brachyopidae Lydekker, 1885
Brachystelechidae Carroll & Gaskill, 1978
Brachystelechus Carroll & Gaskill, 1978
Bradyarges Gistl, 1868
Bradybates Tschudi, 1838
Bradymedusa Miranda-Ribeiro, 1926
Branchiosauridae Fritsch, 1883
Broomistega Shishkin & Rubidge, 2000
Brygoomantis Dubois, 1992
Bufavus Portis, 1885
Bulga Gistl, 1868
Bulgosuchus Damiani, 1999
Bulua Boulenger, 1904
Bystrowianidae
Cacopoides Barbour, 1908
Cacopus Günther, 1864
Caerorhachidae
Calamite Schneider, 1799
Calamites Wagler, 1830
Calamitus Rafinesque, 1815
Calamobates Witte, 1930
Calochelis Fritsch, 1885
Calochelys Fritsch, 1879
Calyptocephala Nieden, 1923
Calyptocephalus Duméril & Bibron, 1841
Capetus Steen, 1938
Capitosauridae Watson, 1919
Cassiniopsis Monard, 1937
Caudata
Cauphias Brocchi, 1877
Cavicola Lutz, 1930
Celtedens McGowan & Evans, 1995
Centrotelma Burmeister, 1856
Cephalopeltis Duméril & Bibron, 1841
Ceratophryne Günther, 1858
Chalcorana Dubois, 1992
Chelidosaurus Fric, 1878
Chelydosaurus Fritsch, 1885
Chelyosaurus Lydekker, 1890
Cherninia Damiani, 2001
Chierosaurus Jeffs, 1894
Chigutisauridae Rusconi, 1951
Chigutisaurus Rusconi, 1948
Chilixalus Werner, 1899
Chilophryne Fitzinger, 1843
Chionopelas Tschudi, 1846
Choanacantha Méhely, 1898
Chroniosuchidae Vjuschkov, 1957
Cochleosauridae Broili, 1923
Cocytinidae
Collettosarus Cox, 1874
Collettosaurus Cox, 1874
Colodactylus Tschudi, 1845
Colosteidae Cope, 1875
Colpoglossus Boulenger, 1904
Compsocerops Sengupta, 1995
Condylura Barnes, 1826
Copea Steindachner, 1864
Cophaeus Cope, 1889
Cordyloides Fritsch, 1904
Corvipes Hitchcock, 1858
Cosgriffius Welles, 1993
Crassigyrinidae
Crassigyrinus Watson, 1926
Crenipes Heyler & Lessertisseur, 1963
Cricotidae
Crotaphitis Schulze, 1891
Crucipes Butts, 1891
Crumenifera Cope, 1862
Ctenocranius Melin, 1941
Cursipes Matthew, 1903
Cylindrosoma Tschudi, 1838
Cystignathidae
Dactylonyx Bonaparte, 1839
Datheosaurus Schroeder, 1905
Dehmiella Herre & Lunau, 1950
Delphinosaurus Eichwald, 1853
Dendrerpetontidae
Dendryazousa Steen, 1934
Dendrysekos Steen, 1934
Dermodactylus David, 1875
Desmiostoma Sager, 1858
Desmodactylus Duméril & Bibron, 1854
Devipes Heyler & Lessertisseur, 1963
Diadectidae
Diadethognathus Fritsch, 1879
Diadetognathus Miall, 1874
Dictyocephalus Leidy, 1857
Didocus Cope, 1866
Dilobates Boulenger, 1900
Diplocaulidae
Diplopelma Günther, 1858
Diplopelturus Depéret, 1897
Diplospondylus Lydekker, 1889
Discodactylus Wagler, 1833
Discosauriscidae Romer, 1947
Discosaurus Credner, 1883
Discospondylus Huxley, 1867
Dissorophidae Boulenger, 1902
Ditcyocephalus Cope, 1869
Diversipes Heyler & Lessertisseur, 1963
Docidophryne Fitzinger, 1843
Doryphorus Brocchi, 1881
Driomelictes Hoffmann, 1878
Dromillopus Lambe, 1904
Dromoplectrus Camerano, 1879
Dromopus Marsh, 1894
Dromotectum Novikov & Shishkin, 2000
Dryomelictes Cope, 1865
Dryophytes Fitzinger, 1843
Ductilodon Gubin, 1999
Duellmania Dubois, 1987
Dvinosauridae Amalitzky, 1921
Dyscophina Kampen, 1905
Eburana Dubois, 1992
Edingerella Schoch & Milner, 2000
Edopidae
Eladinea Ribeiro, 1937
Elaphromantis Laurent, 1941
Eldeceeon Smiths, 1994
Ellipsoglossa Duméril & Bibron, 1854
Elophila Duméril & Bibron, 1841
Emydops Miranda-Ribeiro, 1920
Enhydrobius Cope, 1866
Enosuchidae
Enydrobius Wagler, 1830
Eobaphetes Moodie, 1911
Eobrachyopidae
Eogyrinidae Watson, 1929
Eoherpetontidae
Eolydekkerina Shishkin, Rubidge & Kitching, 1996
Eosauravus Williston, 1910
Eosaurus Marsh, 1862
Eoscapherpeton Nessov, 1981
Eoserpeton Moodie, 1909
Epedaphus Cope, 1885
Epicordylus Cope, 1878
Epicrium Wagler, 1828
Epipolysemia Brame, 1973
Epirhexis Cope, 1866
Eremiophilus Fitzinger, 1843
Erierpeton Moodie, 1913
Erpetobrachium Moodie, 1913
Erpetosuchus Moodie, 1911
Eryopidae Cope, 1882
Eryopides Douthitt, 1917
Eryopsoides Douthitt, 1917
Eubaphus Bonaparte, 1831
Eubates Steindachner, 1864
Euchirosaurus Gaudry, 1879
Eugyrinidae
Euhyas Fitzinger, 1843
Eupalamopus Hay, 1902
Eurhina Fitzinger, 1843
Eurosaurus Kutorga, 1838
Euryops Cope, 1884
Exobranchia Gray, 1850
Fayella Olson, 1965
Ferganobatrachus Nessov, 1990
Fergusonia Hoffmann, 1878
Foliipes Heyler & Lessertisseur, 1963
Fritschia Dawson, 1882
Garbeana Miranda-Ribeiro, 1926
Gegenes Günther, 1876
Geomolge Boulenger, 1886
Gephyrostegidae Jaekel, 1909
Gigadipus Hitchcock, 1855
Gigantorana Noble, 1931
Gilmorella Strand, 1935
Glandula Tian Wanshu & Hu Qixiong, 1985
Glaukerpeton Romer, 1952
Glossiphus Green, 1832
Glossolega Cope, 1866
Glossoliga Bonaparte, 1841
Glyptognathus Newberry, 1889
Gnathophryne Méhely, 1901
Gnathophysa Fitzinger, 1843
Gnatophysa Hoffmann, 1878
Gnorhimosuchus Efremov, 1951
Gobiops Shishkin, 1991
Gomphobates Reinhardt & Lütken, 1862
Goniocara Hay, 1929
Goniocephalus Broili, 1913
Gorhixalus Dubois, 1987
Gracilichnium Haubold, 1970
Grippiella Herre, 1949
Grobina Dubois, 1987
Gryphius Gistl, 1848
Grypiscus Cope, 1867
Gymnarthridae Case, 1919
Gymnophiona
Gynandropaa Dubois, 1992
Halobatrachus Hammer, 1987
Hammatodactylus Fitzinger, 1843
Hapsidopareiontidae Daly, 1973
Haptoglossa Cope, 1893
Heliarchon Meyer, 1860
Helophila Agassiz, 1846
Hemibatrachus Fitzinger, 1843
Hemichthys Fritsch, 1895
Hemipipa Ribeiro, 1937
Hemitriton Dugés, 1852
Hemprichisaurus Kuhn, 1939
Hercynosaurus Jaekel, 1914
Hermundurichnus Walter & Wermeburg, 1988
Herpetichnium Abel, 1929
Herpetichnus Jardine, 1850
Hesperopherpeton Peabody, 1958
Heteroclitotriton Stefano, 1903
Heteropelis Laurent, 1941
Heterotriton Gray, 1850
Heylerosauridae
Heylerosaurus Shishkin, 1980
Hiobates Steindachner, 1864
Hiperodon Philippi, 1902
Hiperoodon Philippi, 1902
Holonectes Peters, 1864
Horezmia Nessov, 1981
Houlema Gray, 1831
Hybridus Peracca, 1886
Hydrosalamandra Leuckart, 1840
Hydroscopes Gistl, 1848
Hydrospelaeus Leuckart, 1821
Hydrostentor Fitzinger, 1861
Hydryla Rafinesque, 1815
Hyladactyla Tschudi, 1838
Hyladactylus Tschudi, 1838
Hylaedactylus Duméril & Bibron, 1841
Hylaemorphus Fitzinger, 1857
Hylanus Rafinesque, 1815
Hyledactylus Casto de Elera, 1845
Hyleisnus Rafinesque, 1815
Hylella Reinhardt & Lütken, 1862
Hylexalus Boulenger, 1882
Hyliola Mocquard, 1899
Hylixalus Boulenger, 1882
Hylobatrachus Laurent, 1943
Hylodactylus Agassiz, 1846
Hyloidichnus Gilmore, 1927
Hylomedusa Burmeister, 1856
Hylophila Boulenger, 1882
Hylophryne Steindachner, 1864
Hyloplesiontidae Carroll & Gaskill, 1978
Hylopus Dawson, 1895
Hynerpeton Daeschler, Shubin, Thomson & Amaral, 1994
Hyperodon Lichtenstein & Martens, 1856
Hyphasma Cope, 1875
Hypsipsophus Fitzinger, 1843
Iberospondylus Laurin & Soler-Gijon, 2001
Icanosaurus Rusconi, 1950
Ichniotherium Pohlig, 1892
Ichnium Pabst, 1896
Ichthyerpeton Etheridge, 1866
Ichthyostegidae Save-Soderbergh, 1932
Iliobates Steindachner, 1867
Iliodiscus Miranda Ribeiro, 1920
Indobrachyopidae
Intasuchidae
Itemirella Nessov, 1981
Ixalis Jerdon, 1853
Jammerbergia Damiani & Hancox, 2003
Jarilinus Golubev, 1998
Jugosuchus Riabinin, 1962
Kakophrynus Steindachner, 1863
Kalamoiketor Branson & Mehl, 1929
Kashmirosaurus Werneburg & Schneider, 1996
Keraterpetontidae
Keratobrachyops Warren, 1981
Kirtixalus Dubois, 1987
Kizylkuma Nessov, 1981
Koinia Gubin, 1993
Komatosuchus Novikov & Shishkin, 1992
Koskinonodon Branson & Mehl, 1929
Kotlassiidae
Kourerpetidae
Kupferzellia Schoch, 1997
Kuttycephalus Sengupta, 1995
Kyrinion Clack, 2003
Labyrinthodon Owen, 1841
Laccosaurus Haughton, 1926
Ladailadne Dubois, 1987
Lagunculapes Hitchcock, 1858
Lanebatrachus Taylor, 1941
Lapillopsis Warren & Hutchinson, 1990
Lasalia Vaughn, 1965
Lasalidae
Latiscopidae
Latonix Meyer, 1843
Leiyla Keferstein, 1868
Lepthyla Duméril & Bibron, 1841
Leptognathosaurus Barkas, 1873
Leptoparius Peters, 1864
Leptopus Mayer, 1835
Leptorophidae
Leptorophus Bulman & Whittard, 1926
Lethiscidae Wellstead, 1982
Levirana Cope, 1894
Libycus Spinar, 1980
Lichyla Nieden, 1923
Lihyla Cope, 1887
Limnocharis Bell, 1843
Limnoclytes Casto de Elera, 1895
Limnodytes Duméril & Bibron, 1841
Limnogyrinus Milner, 1986
Limnophilus Fitzinger, 1843
Limnophys Jiménez de la Espada, 1870
Limnopus Marsh, 1894
Limnoscelididae
Linguaelapsus Cope, 1887
Linguelapsus Brimley, 1895
Lithobatrachus Parker, 1929
Litopleura Jiménez de Espada, 1875
Liurana Dubois, 1987
Liyla Cope, 1869
Lobipes Fitzinger, 1843
Lonchorhynchus Wiman, 1910
Lophinus Gray, 1850
Lophopus Tschudi, 1838
Lusor Steen, 1938
Luzocephalus Shishkin, 1980
Lydekkerinidae Watson, 1919
Lynchophrys Laurent, 1983
Lysipterygium Branson, 1935
Lysorocephalus Huene & Bock, 1954
Lysorophidae Williston, 1908
Lystris Cope, 1868
Macrosaurus Barkas, 1873
Macrothaelacion Wagler, 1833
Maltzania Böttger, 1882
Mantiphrys Mocquard, 1895
Mantophrys Mocquard, 1909
Manubrantlia Yates & Sengupta, 2002
Marmorerpeton Evans, Milner & Mussett, 1988
Marpurgichnium Schindewolf, 1928
Mastocephalus van Hoepen, 1934
Mastodonsauridae Lydekker, 1885
Matthewichnus Haubold, 1970
Megalerpeton Young, 1870
Megapezia Matthew, 1903
Megapterna Savi, 1838
Mehelyia Wandolleck, 1911
Meinus Rafinesque, 1815
Melosauridae Fritsch, 1885
Memonomenos Steen, 1938
Menopoma Harlan, 1825
Mentosaurus Roepke, 1930
Merothaelacium Wagler, 1833
Mesichnium Gilmore, 1926
Mesosaurus Barkas, 1873
Metaeus Girard, 1853
Metoposauridae Watson, 1919
Micrarthroleptis Deckert, 1938
Micrerpeton Moodie, 1909
Micrichnium Abel, 1926
Microbrachidae Fritsch, 1883
Micromelerpetontidae Boy, 1972
Micropelobates Wettstein-Westersheimb, 1955
Micropholidae
Microps Agassiz, 1833
Mikrops Kieffer, 1914
Milnererpeton Hunt, Lucas & Berman, 2002
Milneria Hunt, Lucas & Berman, 1996
Minascaecilia Wake & Campbell, 1983
Mocquardia Ahl, 1931
Moenkopisaurus Shishkin, 1960
Monopoma Bonaparte, 1839
Mordex Steen, 1938
Muraenopsis Fitzinger, 1843
Mycetoglossus Bonaparte, 1839
Mycetoides Duméril & Bibron, 1854
Mynbulakia Nessov, 1981
Myraenopsis Agassiz, 1846
Mytaras Steen, 1931
Nanipes Heyler & Lessertisseur, 1963
Nanolania Yates, 2000
Nanophryne Nieden, 1923
Nanopus Marsh, 1894
Nanospondylus Olson, 1965
Nattereria Steindachner, 1864
Nectes Cope, 1865
Nectodactylus Miranda-Ribeiro, 1924
Nectura Rafinesque, 1820
Neoscaphiopus Taylor, 1942
Nidirana Dubois, 1992
Notalacerta Butts, 1891
Notamphibia Butts, 1891
Notokassina Drewes, 1985
Notolacerta Matthew, 1903
Nototrema Günther, 1858
Novascoticus Carroll, 1966
Nukusurus Nessov, 1981
Nummulosaurus Fritsch, 1901
Nycteroleteridae Romer, 1956
Obstetricans Dugès, 1835
Octopodichnus Gilmore, 1927
Odonterpetontidae Carroll & Gaskill, 1978
Odontosaurus Meyer, 1835
Oedopinola Hilton, 1946
Oestocephalus Cope, 1868
Ogallalabatrachus Taylor, 1941
Onyctopus Martin, 1922
Oocormus Boulenger, 1905
Ophiderpetontidae Schwarz, 1908
Ophiobatrachus Gray, 1868
Oreobatrachus Boulenger, 1896
Ornithichnites King, 1845
Ornithoides Matthew, 1903
Orobates Berman, Henrici, Kissel, Sumida & Martens, 2004
Orthopleurosaurus Lydekker, 1890
Orthosaurus Barkas, 1871
Osilophus Tschudi, 1839
Osteosternum Wu, 1929
Ostodolepidae
Ostodolepididae
Otaspis Cope, 1869
Otilopha Gray, 1831
Otilophus Duméril & Bibron, 1841
Otocratiidae
Otolophus Fitzinger, 1843
Otuminisaurus Rusconi, 1948
Oxyrhincus Duméril & Bibron, 1841
Oxyrhynchus Spix, 1824
Oxyrynchus Wied-Neuwied, 1827
Palaeophryne Fitzinger, 1843
Palaeophrynos Tschudi, 1838
Palaeophrynus Agassiz, 1844
Palaeopus Gilmore, 1926
Palaeosalamandra Herre, 1949
Palaeosalamandrina Herre, 1949
Palaeosauropus Hay, 1901
Palaeosaurus Fitzinger, 1839
Palaeosiren Geinitz, 1864
Palaeostricha van Frank, 1955
Palaeotriton Fitzinger, 1843
Palatinerpeton Boy, 1996
Paleohelcura Gilmore, 1926
Paleorana Scortecci, 1931
Paleotriton Bronn, 1838
Palmirana Ritgen, 1828
Palmitus Rafinesque, 1815
Pantherana Dubois, 1992
Pantylidae Case, 1911
Papurana Dubois, 1992
Parabaropus Gilmore, 1927
Paramicrobrachis Kuhn, 1960
Parapseudacris Hardy & Borroughs, 1986
Pariostegus Cope, 1868
Parioxyidae Moustafa, 1955
Parvibranchus Hogg, 1839
Parvipes Willard & Cleaves, 1930
Parvulus Lutz, 1930
Pectoglossa Mivart, 1868
Pegaeus Gistl, 1868
Pelida Gistl, 1848
Pelion Cope, 1869
Pelobatrachus Beddard, 1908
Pelodytopsis Nikolski, 1896
Pelonectes Fitzinger, 1843
Pelorius Hedges, 1989
Pelosaurus Credner, 1882
Peltobatrachidae Kuhn, 1960
Peltocephalus Tschudi, 1839
Peralaimos Jiménez de la Espada, 1875
Perryella Carlson, 1987
Petrobates Credner, 1890
Petropenia Gistl, 1868
Petrophryne Owen, 1876
Phaenerobranchus Fitzinger, 1826
Phanerobranchus Leuckart, 1821
Phanerobronchus Baird, 1849
Phatnomatorhina Bonaparte, 1839
Phirix Schmidt, 1857
Phlegethontiidae Cope, 1875
Pholidogasteridae
Phonerpeton Dilkes, 1990
Phrynacius Rafinesque, 1815
Phryne Oken, 1816
Phrynoderma Boulenger, 1893
Phrynomorphus Fitzinger, 1843
Phrynophrys Bonaparte, 1839
Phrynotes Rafinesque, 1815
Phylhydrus Swainson, 1839
Phyllhydrus Gray, 1831
Phyllobius Fitzinger, 1843
Phyllodromus Jiménez de la Espada, 1875
Pithecopsis Duméril & Bibron, 1840
Pithecopus Cope, 1866
Plagiosauridae Jaekel, 1913
Plagioscutum Shishkin, 1986
Platosophus Carus, 1878
Platosphus L'Isle, 1877
Platyceps Stephens, 1887
Platyrhincus Duméril & Bibron, 1841
Platystegos Dawson, 1895
Platytherium Barkas, 1873
Plectropus Duméril & Bibron, 1841
Pleuronoura Gaudry, 1879
Pleuronura Zittel, 1888
Pleuroptyx Cope, 1875
Podonectes Steindachner, 1864
Pohlia Steindachner, 1867
Polysemia Meyer, 1860
Pomatops Barbour, 1910
Porierpeton Fritsch, 1885
Potamochoston Steen, 1938
Proamphibia Karpinskii, 1930
Probatrachus Peters, 1877
Promelanerpeton Kuhn, 1961
Propelodytes Weitzel, 1938
Proteocordylus Cuvier, 1831
Proterogyrinidae Romer, 1970
Prothoosuchus Getmanov, 1989
Protobatrachidae Piveteau, 1936
Protocordylus Hyrtl, 1865
Protonopsis Leconte, 1824
Protopelobates Bieber, 1880
Protophrynos Zittel, 1888
Protophrynus Pomel, 1853
Protopipa Noble, 1925
Pseudarthroleptis Deckert, 1938
Pseudengystoma Witte, 1930
Pseudobatrachus Peters, 1873
Pseudobradypus Matthew, 1903
Pseudophlegethontiidae
Pseudopipa Ritgen, 1828
Pseudosalamandra Tschudi, 1838
Pseudotyphlonectes Lescure, Renous & Gasc, 1986
Ptychosphenodon Seeley, 1907
Pulchrana Dubois, 1992
Quasicaecilia Carroll, 1990
Quasicyclotosaurus Schoch, 2000
Rachitomus Cope, 1878
Ranavus Portis, 1885
Ranetta Geoffroy, 1767
Raniceps Wyman, 1858
Ranina David, 1871
Ranixalus Dubois, 1986
Ranula Peters, 1859
Raphaniscus Bulanov, 2000
Raphanodon Ivachnenko, 1987
Rewanobatrachus Schoch & Milner, 2000
Rhachitomus Cope, 1878
Rhaphidochir Wagler, 1833
Rhinesuchidae Watson, 1919
Rhithrotriton Nesterov, 1916
Rhomboglossus Duméril & Bibron, 1841
Rhombopholis Fritsch, 1879
Rhynchonkidae
Rhytidosteidae Huene, 1920
Ribeirina Parker, 1934
Rileymillerus Bolt & Chatterjee, 2000
Rotaurisaurus Yates, 1999
Rothschildia Mocquard, 1905
Salamandrops Wagler, 1830
Saurichnium Gürich, 1926
Saurocercus Fitzinger, 1843
Saurophis Gray, 1850
Sauropsis Fitzinger, 1843
Sauropus Lea, 1849
Scaptophryne Fitzinger, 1861
Schmidtopus Haubold, 1970
Sciaphos Gray, 1845
Scinacodes Fitzinger, 1843
Scincosauridae
Sclerophrys Tschudi, 1838
Sclerothoracidae Huene, 1932
Scotobius Gistl, 1848
Serripes Heyler & Lessertisseur, 1963
Seymouriidae Williston, 1911
Sibilatrix Fitzinger, 1843
Sieboldia Bonaparte, 1838
Sieboldiana Ishikawa, 1904
Sieboldtia Agassiz, 1839
Sierrana Dubois, 1992
Sillerpeton Lund, 1978
Silvanerpeton Clack, 1994
Simomantis Boulenger, 1918
Sinobius Dubois, 1987
Siphneus Fitzinger, 1843
Sirenodon Wiegmann, 1832
Sirenoides Gray, 1850
Sirenoidis Fitzinger, 1843
Smilerpeton Dawson, 1882
Smilerpetum Lydekker, 1890
Solenodonsauridae
Sparagmites Fritsch, 1885
Spathicephalus Watson, 1928
Sphagepodium Steindachner, 1864
Sphenosaurus Meyer, 1847
Srombus Anton, 1839
Stanocephalosaurus Brown, 1933
Steenisaurus Kuhn, 1938
Stegaporus Burmeister, 1849
Stegoporus Wiegmann, 1832
Stenichnus Gilmore, 1927
Stenocephalus Tschudi, 1838
Stenodactylus Philippi, 1902
Stenorhynchus Smith, 1849
Stephanopus Gand, 1975
Stereorachis Gaudry, 1883
Stereorhachis Gaudry, 1883
Stremmeia Nopcsa, 1931
Strepsodontosaurus Scudder, 1882
Streptodontosaurus Barkas, 1873
Strictipes Heyler & Lessertisseur, 1963
Strombus Gray, 1830
Subcyclotosaurus Watson, 1958
Suchonica Golubev, 1999
Synesuchus Novikov & Shishkin, 2000
Syphonodon Seeley, 1908
Systoma Wagler, 1830
Talmalsodes Diaz, 1992
Tambachia Sumida, Berman & Martens, 1998
Taphriomantis Laurent, 1941
Tarsodactylus Hitchcock, 1858
Tarsopterus Reinhardt & Lütken, 1862
Tatrasuchus Maryanska & Shishkin, 1996
Teletrema Ribeiro, 1937
Telmalsodes Diaz, 1989
Teracophrys Ameghino, 1901
Tetrapodium Gürich, 1926
Thabanchuia Warren, 1999
Thenaropus King, 1844
Theranopus Matthew, 1903
Thinopus Marsh, 1896
Thoosuchidae
Timanosaurus Gubin, 1993
Tischlieriella Herre, 1949
Tokosauridae Tverdochlebova et al., 1984
Tornierobates Miranda Ribeiro, 1926
Torridorefugium Hembree, Hasiotis & Martin, 2005
Trachycara Tschudi, 1845
Trachyhyas Fitzinger, 1843
Trematopidae
Trematopsidae Williston, 1910
Trematopsis Olson, 1956
Trematosauridae Watson, 1919
Trematotegmen Getmanov, 1982
Triavestigia Gilmore, 1927
Tridactylosaurus Barkas, 1873
Tridentichnus Gilmore, 1927
Trigonophrys Hallowell, 1856
Trigonosternum Schmidt, 1931
Trihecatontidae Vaughn, 1972
Trimerorhachidae Cope, 1882
Tristella Gray, 1850
Tritomegas Duméril & Bibron, 1854
Tritomegus Ishikawa, 1904
Trituroides Chang, 1936
Troglobates Gistl, 1848
Trypheropsis Cope, 1868
Tseajaiidae Vaughn, 1964
Tuditanidae Cope, 1875
Tulerpetontidae
Tungussogyrinus Efremov, 1939
Tupilakosauridae
Tylerana Dubois, 1992
Tympanoceros Bocage, 1895
Ulanurus Gubin, 1991
Uralosuchus Gubin, 1993
Uranocentrodontidae
Urocordylidae Lydekker, 1889
Urumqia Zhang Fakui, Li Yaozeng & Wan Xungang, 1984
Utaherpeton Carroll, Bybee & Tidwell, 1991
Vanastega Damiani & Kitching, 2003
Vigilius Warren & Marsicano, 2000
Voigtiella Herre, 1949
Volgaosuchus Efremov, 1940
Vyborosaurus Novikov, 1990
Waggoneriidae
Wealdenbatrachus Fey, 1988
Westlothiana Smithson & Rolfe, 1990
Wetlugasauridae
Whatcheeriidae
Xenobius Zhang Fuji & Hu Qixiong, 1985
Xenotosuchus Morales & Shishkin, 2002
Xiphoctonus Gistl, 1848
Xiphonura Tschudi, 1838
Xiphura Agassiz, 1846
Yarengiidae
Zatrachydidae
Zatrachyidae
Zweifelia Dubois, 1992