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IRMNG name details

Reptilia (awaiting allocation)

100138  (urn:lsid:irmng.org:taxname:100138)

temporary name
Family
Genus Dinosauriovum Vialov, 1975
Genus Ganasauripus Valentini, Conti & Mariotti, 2007 †
Genus Micrichnus Abel, 1926 †
Genus Nichollsemys Brinkman, Hart, Jamniczky & Colbert, 2006 †
Genus Thaisaurus Mazin, Suteethorn, Buffetaut, Jaeger & Helmcke-Ingavat, 1991 †

Genus Acrochordon Fischer, 1808 (nomen nudum)
Genus Acrocordon Cuvier, 1800 (nomen nudum)
Genus Adactinus Rafinesque, 1815 (nomen nudum)
Genus Adaria Gray, 1840 (nomen nudum)
Genus Angaha Cuvier, 1800 (nomen nudum)
Genus Anthracochelys Bergounioux, 1953 † (nomen nudum)
Genus Anthracochelys Bergounioux, 1953 † (nomen nudum)
Genus Anthraxochelys Bergounioux, 1953 † (nomen nudum)
Genus Anthraxochelys Bergounioux, 1953 † (nomen nudum)
Genus Ariuns Boie, 1832 (nomen nudum)
Genus Atelope Gray, 1842 (nomen nudum)
Genus Atropos Rafinesque, 1815 (nomen nudum)
Genus Batracinus Rafinesque, 1815 (nomen nudum)
Genus Bipedius Rafinesque, 1815 (nomen nudum)
Genus Boaclonium Cope, 1900 (nomen nudum)
Genus Boranus Rafinesque, 1815 (nomen nudum)
Genus Bothriophis Eichwald, 1837 (nomen nudum)
Genus Bucephala Gray, 1840 (nomen nudum)
Genus Calamospondylus Fox, 1866 † (nomen nudum)
Genus Calliurus Rafinesque, 1815 (nomen nudum)
Genus Calrita Gray, 1840 (nomen nudum)
Genus Cantinea Gray, 1840 (nomen nudum)
Genus Centroplites Macklot, 1830 (nomen nudum)
Genus Cephalophractus Fitzinger, 1843 (nomen nudum)
Genus Cephiotus Rafinesque, 1815 (nomen nudum)
Genus Cerastes Rafinesque, 1815 (nomen nudum)
Genus Cheliphus Rafinesque, 1815 (nomen nudum)
Genus Cheliurus Rafinesque, 1815 (nomen nudum)
Genus Chelonura Rafinesque, 1815 (nomen nudum)
Genus Chelopsis Rafinesque, 1815 (nomen nudum)
Genus Chemelys Rafinesque, 1815 (nomen nudum)
Genus Chilomeles Gray, 1841 (nomen nudum)
Genus Chilopoma Cope, 1875 † (nomen nudum)
Genus Chondrodela Rafinesque, 1815 (nomen nudum)
Genus Chrysaurus Rafinesque, 1815 (nomen nudum)
Genus Cordylinus Rafinesque, 1815 (nomen nudum)
Genus Cuminia Gray, 1840 (nomen nudum)
Genus Cyclochelys Bergounioux, 1953 † (nomen nudum)
Genus Cyclurus Gray, 1840 (nomen nudum)
Genus Dactris Rafinesque, 1815 (nomen nudum)
Genus Dactylonyx Duméril, 1854 (nomen nudum)
Genus Didicla Rafinesque, 1815 (nomen nudum)
Genus Dimeresurus Bleeker, 1857 (nomen nudum)
Genus Dinotosaurus Seeley, 1866 † (nomen nudum)
Genus Dipoderus Rafinesque, 1815 (nomen nudum)
Genus Dipodus Agassiz, 1845 (nomen nudum)
Genus Dipriurus Rafinesque, 1815 (nomen nudum)
Genus Dragona Rafinesque, 1815 (nomen nudum)
Genus Eltrolepurus Rafinesque, 1815 (nomen nudum)
Genus Eupeltis Fitzinger, 1843 (nomen nudum)
Genus Euryaspis Wagner, 1859 (nomen nudum)
Genus Fenestrosaurus Osborn, 1924 † (nomen nudum)
Genus Geotus Rafinesque, 1815 (nomen nudum)
Genus Helionomus Gray, 1841 (nomen nudum)
Genus Hemiplatus Rafinesque, 1815 (nomen nudum)
Genus Hemiura Rafinesque, 1815 (nomen nudum)
Genus Heremites Cocteau, 1837 (nomen nudum)
Genus Holcodus Gibbes, 1850 (nomen nudum)
Genus Huria Fischer, 1802 (nomen nudum)
Genus Hyadactyla Gray, 1842 (nomen nudum)
Genus Iphisa Rafinesque, 1815 (nomen nudum)
Genus Leiosophis Jan, 1863 (nomen nudum)
Genus Leipherus Gray, 1842 (nomen nudum)
Genus Lemnodytes Gray, 1842 (nomen nudum)
Genus Lupeurus Rafinesque, 1815 (nomen nudum)
Genus Lycaenoides Broom, 1930 † (nomen nudum)
Genus Macrospondylus Meyer, 1830 (nomen nudum)
Genus Megara Gray, 1840 (nomen nudum)
Genus Megasaurus Rafinesque, 1815 (nomen nudum)
Genus Megasternon Gray, 1842 † (nomen nudum)
Genus Megurus Rafinesque, 1815 (nomen nudum)
Genus Meiodactis Rafinesque, 1815 (nomen nudum)
Genus Metoceros Gray, 1840 (nomen nudum)
Genus Natya Gray, 1840 (nomen nudum)
Genus Ophrias Rafinesque, 1815 (nomen nudum)
Genus Otopsis Rafinesque, 1815 (nomen nudum)
Genus Palaeochelys Meyer, 1847 † (nomen nudum)
Genus Parasuchus Huxley, 1870 † (nomen nudum)
Genus Pectocephalus Gray, 1842 (nomen nudum)
Genus Pelluma Rafinesque, 1815 (nomen nudum)
Genus Pentheres Fitzinger, 1861 (nomen nudum)
Genus Petrolus Rafinesque, 1815 (nomen nudum)
Genus Phenacophis Fitzinger, 1861 (nomen nudum)
Genus Platyarkia Bergounioux, 1953 † (nomen nudum)
Genus Platygnathus Owen, 1840 (nomen nudum)
Genus Plectropode Gray, 1842 (nomen nudum)
Genus Plestrodon Gray, 1841 (nomen nudum)
Genus Podurus Fischer, 1808 (nomen nudum)
Genus Polyptychus Agassiz, 1845 (nomen nudum)
Genus Priochondrus Rafinesque, 1815 (nomen nudum)
Genus Prionurus Rafinesque, 1815 (nomen nudum)
Genus Psammita Gray, 1840 (nomen nudum)
Genus Psammites Cocteau, 1837 (nomen nudum)
Genus Psammophidion Fitzinger, 1861 (nomen nudum)
Genus Rhinopeltis Agassiz, 1844 (nomen nudum)
Genus Rhinoscytale Fitzinger, 1843 (nomen nudum)
Genus Rhinosiphon Fitzinger, 1843 (nomen nudum)
Genus Salvaguardia Oken, 1817 (nomen nudum)
Genus Sarubeus Rafinesque, 1815 (nomen nudum)
Genus Sauroidichnites Hitchcock, 1837 † (nomen nudum)
Genus Scaphiops Gray, 1842 (nomen nudum)
Genus Seltopus Rafinesque, 1815 (nomen nudum)
Genus Senembis Rafinesque, 1815 (nomen nudum)
Genus Sepsinus Rafinesque, 1815 (nomen nudum)
Genus Tachymeris Wiegmann in Meyen, 1834 (nomen nudum)
Genus Tapayus Rafinesque, 1815 (nomen nudum)
Genus Tenogaster Rafinesque, 1815 (nomen nudum)
Genus Tetragonosaurus Parks, 1931 † (nomen nudum)
Genus Tetrapodichnites Hitchcock, 1837 (nomen nudum)
Genus Teyutis Rafinesque, 1815 (nomen nudum)
Genus Thecodon Agassiz, 1844 (nomen nudum)
Genus Thyro Agassiz, 1844 (nomen nudum)
Genus Topinctus Hasselt, 1823 (nomen nudum)
Genus Triardipes Cope, 1900 (nomen nudum)
Genus Trigalus Rafinesque, 1815 (nomen nudum)
Genus Triseps Rafinesque, 1815 (nomen nudum)
Genus Tritro Gray, 1842 (nomen nudum)
Genus Uperodonta Gray, 1842 (nomen nudum)
Genus Uranocentron Gray, 1840 (nomen nudum)
Genus Uronyx Rafinesque, 1815 (nomen nudum)
Genus Urotornus Agassiz, 1846 (nomen nudum)
Genus Urypus Rafinesque, 1815 (nomen nudum)

Genus Achelus Oken, 1816 (Published in a rejected work (ICZN))
Genus Achirina Boulenger, 1896 (Misspelling)
Genus Aëllodon Agassiz, 1846 accepted as Aellodon Agassiz, 1846
Genus Aethiopus Hitchcock, 1848 (Misspelling)
Genus Aëtosaurus Fraas, 1877 accepted as Aetosaurus Fraas, 1877
Genus Ahaetulla Gray, 1825
Genus Ahetula Gray, 1842 (Misspelling)
Genus Aligator Gray, 1825 (Misspelling)
Genus Ammodytes Bonaparte, 1831
Genus Amphardis Cope, 1895 (Misspelling)
Genus Amphibiolithus Linnaeus, 1768 (Published in a rejected work (ICZN))
Genus Aneuoporus accepted as Aneuporus Bocourt, 1874
Genus Ankistrodon Huxley, 1865 † (Misspelling)
Genus Apateon von Meyer, 1844 (Misspelling)
Genus Arnes Cocteau, 1837 (Published in a non-binomial work)
Genus Asthenognathus Broom, 1915 †
Genus Asthenognathus Bocourt, 1884
Genus Batrachosaurus Fitzinger, 1839 † (Misspelling)
Genus Batrachotherium Harlan, 1839 † (Misspelling)
Genus Blepharictisis accepted as Blepharactisis Hallowell, 1860
Genus Bongarus Fischer, 1808 (Misspelling)
Genus Bothrophis Zittel, 1889 † (Misspelling)
Genus Branchocela Agassiz, 1846 (Misspelling)
Genus Calliophis Agassiz, 1846 (Unjustified (?) emendation)
Genus Camelia accepted as Camilia Gray, 1845
Genus Capellineosuchus † accepted as Capelliniosuchus Simonelli, 1896
Genus Caramus Rafinesque, 1815 (Misspelling)
Genus Caudisoma Hoffmann in Bronn, 1887 (Misspelling)
Genus Centromastyx accepted as Centromastix Boulenger, 1916
Genus Cephaloloxes Gistl, 1848 (Misspelling)
Genus Chelyposuchus † accepted as Chelyoposuchus Kuhn, 1939 †
Genus Chemelys Rafinesque, 1832 (Suppressed name (ICZN))
Genus Chilolepis Fitzinger, 1843 (Suppressed name (ICZN))
Genus Chimaera Hitchcock, 1858
Genus Churchilla accepted as Churchillia Baird & Girard, 1852
Genus Cimoliochelys Woodward, 1888 † (Unjustified (?) emendation)
Genus Cirognathus Lydekker, 1890 † (Misspelling)
Genus Cistesaurus Geoffroy, 1831 (Misspelling)
Genus Cladevodon Agassiz, 1846 (Unjustified (?) emendation)
Genus Coccoëssus Cope, 1862 accepted as Coccoessus Cope, 1862
Genus Cora Jan, 1863
Genus Cristasaurus accepted as Cristasaura Gray, 1852
Genus Cryptoscincus accepted as Cryptoposcincus Mocquard, 1906
Genus Ctenodira Agassiz, 1846 (Unjustified (?) emendation)
Genus Cumnovia Carus, 1888 (Misspelling)
Genus Cybicodon Agassiz, 1846 (Unjustified (?) emendation)
Genus Cylindrodon Nopcsa, 1926 † (Misspelling)
Genus Cynochampsa Owen, 1860 † (Suppressed name (ICZN))
Genus Cynodracon Owen, 1876 † (Misspelling)
Genus Cyoclosaurus Wagler, 1833 (Misspelling)
Genus Cysteosaurus Agassiz, 1846 † (Unjustified (?) emendation)
Genus Dhongoka Gray, 1870 (Misspelling)
Genus Dicloniseus Cope, 1900 (Misspelling)
Genus Diplophatulus Cope, 1900 (Misspelling)
Genus Diropeda Agassiz, 1846 (Unjustified (?) emendation)
Genus Discosomus Oken, 1816 (Published in a rejected work (ICZN))
Genus Engyommasaurus Agassiz, 1844 † (Misspelling)
Genus Enpeltis Fitzinger, 1861 (Misspelling)
Genus Eremites Agassiz, 1846 (Unjustified (?) emendation)
Genus Eucentrosaurus Chure & McIntosh, 1989 † accepted as Centrosaurus Lambe, 1904 †
Genus Eumantella Broom, 1935 † (Misspelling)
Genus Exypneustes Agassiz, 1845 (Unjustified (?) emendation)
Genus Exypnistes Kaup, 1836 (Misspelling)
Genus Fresnosaurus † accepted as Frenosaurus Welles, 1943 †
Genus Geoëmys Agassiz, 1846 accepted as Geoemys Agassiz, 1846
Genus Glaphyorhynchus Giebel, 1847 (Misspelling)
Genus Gonydipsas Agassiz, 1846 (Unjustified (?) emendation)
Genus Hermites accepted as Heremites Gray, 1845
Genus Herpetocheirus Seeley, 1895 (Misspelling)
Genus Herpeton Oken, 1816 (Published in a rejected work (ICZN))
Genus Histiocercus Agassiz, 1846 (Unjustified (?) emendation)
Genus Holocodus † accepted as Holcodus Gibbes, 1850
Genus Hygina Gray, 1849 (Misspelling)
Genus Inostranzevia Pravosalvlev, 1927 † (Misspelling)
Genus Kinothorax Gray, 1863 (Misspelling)
Genus Kladyodon Plieninger, 1846 (Misspelling)
Genus Langaia Fleming, 1822 (Misspelling)
Genus Langhaha Ritgen, 1828 (Misspelling)
Genus Leptostermon Gray, 1825 (Misspelling)
Genus Liogerrhon Agassiz, 1846 (Unjustified (?) emendation)
Genus Liostira Agassiz, 1846 (Unjustified (?) emendation)
Genus Lophodira Agassiz, 1846 (Unjustified (?) emendation)
Genus Lütkesaurus Kiprijanoff, 1883 † accepted as Luetkesaurus Kiprijanoff, 1883 †
Genus Lütkesaurus Kiprijanoff, 1883 † accepted as Luetkesaurus Kiprijanoff, 1883 †
Genus Macromerosaurus Lydekker, 1889 † (Misspelling)
Genus Marmorosaurus Owen, 1845 † (Misspelling)
Genus Megasternum Lydekker, 1889 † (Misspelling)
Genus Mosellosaurus Monard, 1847 † (Misspelling)
Genus Nymphodidium accepted as Nymphophidium Günther, 1864
Genus Octogomphus Broom, 1932 † (Misspelling)
Genus Onychopus Duméril & Bibron, 1854 (Misspelling)
Genus Ophryocentrum Agassiz, 1846 (Unjustified (?) emendation)
Genus Orinosaurus Lydekker, 1889 † (Misspelling)
Genus Otouphepus Cushman, 1904 † (Suppressed name (ICZN))
Genus Palaehatteria Haeckel, 1895 † (Misspelling)
Genus Palaeosaurus Geoffroy, 1833 † (Misspelling)
Genus Palaeosphenodon Baur, 1889 † (Unjustified (?) emendation)
Genus Peipesuchus † accepted as Pelosuchus Broom, 1905 †
Genus Petrodactylus Oken, 1816 (Published in a rejected work (ICZN))
Genus Philhydrus Brookes, 1828 (Suppressed name (ICZN))
Genus Pilemophis Lydekker, 1888 † (Misspelling)
Genus Placoderma accepted as Plocederma Blyth, 1854
Genus Propus Oken, 1816 (Published in a rejected work (ICZN))
Genus Pseudo-boa Oppel, 1811 accepted as Pseudoboa Oppel, 1811
Genus Pseudouromacer accepted as Pseuduromacer Werner, 1924
Genus Pterodactylus Oken, 1816 (Published in a rejected work (ICZN))
Genus Ptychognathus Owen, 1860 †
Genus Rhamphosaurus Fitzinger, 1843 (Misspelling)
Genus Rhaphiosaurus Owen, 1841 † (Misspelling)
Genus Rhysosteus Agassiz, 1846 (Unjustified (?) emendation)
Genus Sarauba Bonaparte, 1831 (Misspelling)
Genus Sarouba Gray, 1827 (Misspelling)
Genus Sarrouba Duméril & Bibron, 1836 (Misspelling)
Genus Saurochahpsa Bronn, 1848 † (Misspelling)
Genus Sericosaurus Leonhard & Bronn, 1845 † (Misspelling)
Genus Spheropezium King, 1845 (Misspelling)
Genus Stirophis Agassiz, 1846 (Unjustified (?) emendation)
Genus Styodactylus Goldfuss, 1820 (Misspelling)
Genus Tachyophis Mertens, 1934
Genus Tapelus Gray, 1825 (Misspelling)
Genus Tejaporus Cope, 1900 (Misspelling)
Genus Telerpedon Fraas, 1867 † (Misspelling)
Genus Trachelogerrhum Agassiz, 1846 (Unjustified (?) emendation)
Genus Trapetus Oken, 1817 (Misspelling)
Genus Tritropis Fitzinger, 1843 (Suppressed name (ICZN))
Genus Tropidogaster Duméril & Bibron, 1837 (Suppressed name (ICZN))
Genus Tropidogerrhum Agassiz, 1846 (Unjustified (?) emendation)
Genus Trypanurgos Fitzinger in Tschudi, 1846 (Misspelling)
Genus Uranocentrum accepted as Uranocentrun Gray, 1845
Genus Urocrotalum Agassiz, 1846 (Unjustified (?) emendation)
Genus Uroleptis Duméril & Bibron, 1844 (Misspelling)
Genus Yümenemys Bohlin, 1953 † accepted as Yumenemys Bohlin, 1953 †

Genus Acallosuchus Long & Murry, 1995 † (uncertain, unassessed)
Genus Acanthocalyx Cope, 1895 (uncertain, unassessed)
Genus Acanthophallus Cope, 1893 (uncertain, unassessed)
Genus Acanthopyga Gray, 1838 (uncertain, unassessed)
Genus Acanthotoposaurus Evans & van den Heever, 1987 † (uncertain, unassessed)
Genus Acanthurus Daudin, 1803 (uncertain, unassessed)
Genus Achelonia Wagner, 1860 (uncertain, unassessed)
Genus Achilemys Hay, 1908 † (uncertain, unassessed)
Genus Achirhina Jan, 1861 (uncertain, unassessed)
Genus Acichelys Meyer, 1854 (uncertain, unassessed)
Genus Acontias Troost, 1836 (uncertain, unassessed)
Genus Acranthos Swainson, 1839 (uncertain, unassessed)
Genus Acrohydraspis Rusconi, 1934 (uncertain, unassessed)
Genus Acrosaurus Meyer, 1854 † (uncertain, unassessed)
Genus Actiosaurus Sauvage, 1883 † (uncertain, unassessed)
Genus Ada Gray, 1825 (uncertain, unassessed)
Genus Adelosaurus Watson, 1914 † (uncertain, unassessed)
Genus Adriosaurus Seeley, 1881 † (uncertain, unassessed)
Genus Adromicus Cope, 1900 (uncertain, unassessed)
Genus Aechmophrys Coues, 1875 (uncertain, unassessed)
Genus Aellodon Agassiz, 1846 (uncertain, unassessed)
Genus Aelurodraco Broom & Robinson, 1948 † (uncertain, unassessed)
Genus Aelurosauroides Boonstra, 1934 † (uncertain, unassessed)
Genus Aelurosauroides Broom, 1940 † (uncertain, unassessed)
Genus Aelurosaurus Owen, 1881 † (uncertain, unassessed)
Genus Aelurosuchus Broom, 1906 † (uncertain, unassessed)
Genus Aenigmasaurus Parrington, 1953 † (uncertain, unassessed)
Genus Aethyopus Hitchcock, 1848 (uncertain, unassessed)
Genus Aetosaurus Fraas, 1877 (uncertain, unassessed)
Genus Ageroolithus Vianey-Liaud & Lopez-Martinez, 1997 † (uncertain, unassessed)
Genus Agetosaura Gistl, 1868 (uncertain, unassessed)
Genus Aggiosaurus von Huene in Soergel, 1932 † (uncertain, unassessed)
Genus Agnosaurus Boonstra, 1952 † (uncertain, unassessed)
Genus Agnosphitys Fraser, Padian, Walkden & Davis, 2002 † (uncertain, unassessed)
Genus Agratomus Cope, 1887 (uncertain, unassessed)
Genus Agriotes Jan, 1863 (uncertain, unassessed)
Genus Ailurops Bonaparte, 1837 (uncertain, unassessed)
Genus Akropus Lilienstern, 1939 † (uncertain, unassessed)
Genus Alamosemys Hay, 1908 † (uncertain, unassessed)
Genus Alethesaurus Gilmore, 1928 † (uncertain, unassessed)
Genus Alligatorium Jourdan, 1862 (uncertain, unassessed)
Genus Alopecideops Broom in Woodward, 1932 † (uncertain, unassessed)
Genus Alopecodon Broom, 1908 † (uncertain, unassessed)
Genus Alopecognathus Broom, 1915 † (uncertain, unassessed)
Genus Alopecopsis Broom, 1920 † (uncertain, unassessed)
Genus Alopecorhinus Broom, 1912 † (uncertain, unassessed)
Genus Aloposauroides Brink & Kitching, 1953 † (uncertain, unassessed)
Genus Aloposaurus Broom, 1910 † (uncertain, unassessed)
Genus Alsodromus Fitzinger, 1843 (uncertain, unassessed)
Genus Ama Smith, 1882 † (uncertain, unassessed)
Genus Amalitzkia Pravoslavlev, 1927 (uncertain, unassessed)
Genus Amblydectes Hooley, 1914 (uncertain, unassessed)
Genus Amblypeza Hay, 1908 (uncertain, unassessed)
Genus Amblypus Hitchcock, 1858 (uncertain, unassessed)
Genus Amoebopsis Cope, 1895 (uncertain, unassessed)
Genus Amphiardis Cope, 1889 (uncertain, unassessed)
Genus Amphicotylus Cope, 1878 † (uncertain, unassessed)
Genus Amphixestus Peters, 1871 (uncertain, unassessed)
Genus Anaphotidemys Hay, 1905 † (uncertain, unassessed)
Genus Anatopus Lapparent & Montenat, 1967 † (uncertain, unassessed)
Genus Anatosuchus Sereno, Sidor, Larsson & Gado, 2003 † (uncertain, unassessed)
Genus Anatrisauropus Ellenberger, 1972 † (uncertain, unassessed)
Genus Ancylocentrum Schmidt, 1927 (uncertain, unassessed)
Genus Ancyropus Hitchcock, 1848 (uncertain, unassessed)
Genus Anelytrops Duméril, 1856 (uncertain, unassessed)
Genus Aneugomphius Broom & Robinson, 1948 † (uncertain, unassessed)
Genus Aneuporus Bocourt, 1874 (uncertain, unassessed)
Genus Angistorhinopsis von Huene, 1922 † (uncertain, unassessed)
Genus Angistorhinus Mehl, 1914 † (uncertain, unassessed)
Genus Anguinicephalus Deraniyagala, 1934 (uncertain, unassessed)
Genus Anguisaurus Münster, 1839 † (uncertain, unassessed)
Genus Anhomoiichnium Dozy, 1935 † (uncertain, unassessed)
Genus Anisoclonium Cope, 1900 (uncertain, unassessed)
Genus Anna Amalitsky, 1922 † (uncertain, unassessed)
Genus Anningia Broom, 1927 † (uncertain, unassessed)
Genus Anodontosaurus Sternberg, 1929 † (uncertain, unassessed)
Genus Anomalodon Jan, 1863 (uncertain, unassessed)
Genus Anomoiodon von Huene, 1939 † (uncertain, unassessed)
Genus Anomosaurus von Huene, 1902 † (uncertain, unassessed)
Genus Anoplus Gray, 1840 (uncertain, unassessed)
Genus Apalochelone Rafinesque, 1832 (uncertain, unassessed)
Genus Apatelus do Maral, 1937 (uncertain, unassessed)
Genus Apatheon von Meyer, 1844 (uncertain, unassessed)
Genus Apatodonosaurus Mehl, 1928 † (uncertain, unassessed)
Genus Apatomerus Williston, 1903 † (uncertain, unassessed)
Genus Apertotemporalis Stromer, 1934 (uncertain, unassessed)
Genus Aphelophis Cope, 1873 † (uncertain, unassessed)
Genus Aphelosaurus Gervais, 1858 (uncertain, unassessed)
Genus Apholidemys Pomel, 1847 (uncertain, unassessed)
Genus Aplax von Meyer, 1843 (uncertain, unassessed)
Genus Aploaspis Cope, 1866 (uncertain, unassessed)
Genus Apneumona Fleming, 1822 (uncertain, unassessed)
Genus Apractocleidus Smellie, 1915 † (uncertain, unassessed)
Genus Apterigodon Edeling, 1864 (uncertain, unassessed)
Genus Araeosaurus Seeley, 1881 † (uncertain, unassessed)
Genus Arambourgia Kälin, 1939 † (uncertain, unassessed)
Genus Arapaima Müller, 1843 (uncertain, unassessed)
Genus Archaeochelys Lydekker, 1889 † (uncertain, unassessed)
Genus Archaeosuchus Broom, 1905 † (uncertain, unassessed)
Genus Archaius Gray, 1865 (uncertain, unassessed)
Genus Archilacerta Haeckel, 1895 (uncertain, unassessed)
Genus Arctognathoides Boonstra, 1934 † (uncertain, unassessed)
Genus Arctognathus Broom, 1911 † (uncertain, unassessed)
Genus Arctosaurus Adams, 1875 † (uncertain, unassessed)
Genus Arctosuchus Broom, 1911 † (uncertain, unassessed)
Genus Argoides Hitchcock, 1846 (uncertain, unassessed)
Genus Argozoum Hitchcock, 1848 (uncertain, unassessed)
Genus Aristodesmus Seeley, 1896 (uncertain, unassessed)
Genus Arnes Agassiz, 1845 (uncertain, unassessed)
Genus Arnognathus Broom, 1907 † (uncertain, unassessed)
Genus Aromosuchus Gray, 1862 (uncertain, unassessed)
Genus Arribasaurus Williston, 1914 † (uncertain, unassessed)
Genus Arthroodonta Fritsch, 1879 (uncertain, unassessed)
Genus Asiatosuchus Mook, 1940 (uncertain, unassessed)
Genus Aspidocercus Fitzinger, 1843 (uncertain, unassessed)
Genus Aspidophrys Fitzinger, 1843 (uncertain, unassessed)
Genus Aspidopsis Fitzinger, 1843 (uncertain, unassessed)
Genus Aspidosaurus Fitzinger, 1843 (uncertain, unassessed)
Genus Aspidosoma Fitzinger, 1843 (uncertain, unassessed)
Genus Aspidula Philippi, 1899 (uncertain, unassessed)
Genus Aspis Wagler, 1830 (uncertain, unassessed)
Genus Asterophis Fitzinger, 1843 (uncertain, unassessed)
Genus Astrophis Fitzinger, 1861 (uncertain, unassessed)
Genus Atacisaurus Astre, 1931 † (uncertain, unassessed)
Genus Athenosaurus Aldrich & Jones, 1930 † (uncertain, unassessed)
Genus Atractocephalus Sauvage, 1879 (uncertain, unassessed)
Genus Atractopsis Despax, 1911 (uncertain, unassessed)
Genus Atreipus Olsen & Baird, 1986 † (uncertain, unassessed)
Genus Atropis Glückselig, 1851 (uncertain, unassessed)
Genus Attenosaurus Aldrich & Jones, 1930 † (uncertain, unassessed)
Genus Aublysodon Leidy, 1868 (uncertain, unassessed)
Genus Aulacocephalus Seeley, 1898 † (uncertain, unassessed)
Genus Aulacochelys Lydekker, 1889 (uncertain, unassessed)
Genus Aulaeosaurus Wagler, 1833 (uncertain, unassessed)
Genus Auxipes Heyler & Lessertisseur, 1963 † (uncertain, unassessed)
Genus Avalonia Seeley, 1898 † (uncertain, unassessed)
Genus Axestenys Hay, 1899 † (uncertain, unassessed)
Genus Axestus Cope, 1872 † (uncertain, unassessed)
Genus Axolotl Cuvier in Humboldt, 1807 (uncertain, unassessed)
Genus Bahariasaurus Stromer, 1934 † (uncertain, unassessed)
Genus Baharijodon Kühn, 1936 † (uncertain, unassessed)
Genus Bainia Broom, 1922 † (uncertain, unassessed)
Genus Bakiea Gray, 1869 (uncertain, unassessed)
Genus Bantuchelys Dollo, 1925 † (uncertain, unassessed)
Genus Baropus Baird, 1952 † (uncertain, unassessed)
Genus Baseodon Leidy, 1865 (uncertain, unassessed)
Genus Basutodon von Huene in Soergel, 1932 † (uncertain, unassessed)
Genus Basutosaura Hewitt, 1925 (uncertain, unassessed)
Genus Batagurella Gray, 1869 (uncertain, unassessed)
Genus Bathyglyptus Case, 1911 (uncertain, unassessed)
Genus Batrachiosaurus Harlan, 1839 † (uncertain, unassessed)
Genus Batrachopodiscus Ellenberger, 1972 † (uncertain, unassessed)
Genus Batrachotomus Gower, 1999 † (uncertain, unassessed)
Genus Baurioides Broom, 1925 † (uncertain, unassessed)
Genus Baurocynodon Brink, 1951 † (uncertain, unassessed)
Genus Bayloria Olson, 1941 † (uncertain, unassessed)
Genus Belesodon von Huene, 1936 (uncertain, unassessed)
Genus Bellophis Lockington, 1877 (uncertain, unassessed)
Genus Belonochasma Broili, 1939 † (uncertain, unassessed)
Genus Bettaia Bedriaga, 1886 (uncertain, unassessed)
Genus Bifidichnium Demathieu & Weidmann, 1982 † (uncertain, unassessed)
Genus Bimanus Oppel, 1811 (uncertain, unassessed)
Genus Bipedes Aldrich & Jones, 1930 † (uncertain, unassessed)
Genus Bipedopus Haubold, 1971 † (uncertain, unassessed)
Genus Bipedos Deraniyagala, 1953 (uncertain, unassessed)
Genus Bipes de Lacepède, 1788 (uncertain, unassessed)
Genus Blepharactisis Hallowell, 1860 (uncertain, unassessed)
Genus Blezingeria von Huene, 1951 † (uncertain, unassessed)
Genus Bosiutrisauropus Ellenberger, 1972 † (uncertain, unassessed)
Genus Bothrodytes Cope, 1886 (uncertain, unassessed)
Genus Bothrophis Fitzinger, 1843 (uncertain, unassessed)
Genus Bothrops Spix & Martius, 1823 (uncertain, unassessed)
Genus Botrophis Rochebrune, 1880 † (uncertain, unassessed)
Genus Boulengeria Lataste, 1885 (uncertain, unassessed)
Genus Boverisuchus Kuhn, 1938 (uncertain, unassessed)
Genus Brachyblemma Wagler, 1833 (uncertain, unassessed)
Genus Brachybrachium Williston, 1904 † (uncertain, unassessed)
Genus Brachydactylus Smith, 1834 (uncertain, unassessed)
Genus Brachygnathosuchus Mook, 1921 (uncertain, unassessed)
Genus Brachypareia Haughton, 1929 (uncertain, unassessed)
Genus Brachyprosopus Olson, 1937 † (uncertain, unassessed)
Genus Brachyra Kuhl & van Hasselt, 1822 (uncertain, unassessed)
Genus Brachyrhinodon von Huene, 1910 (uncertain, unassessed)
Genus Brachyrhynchus Fitzinger, 1843 (uncertain, unassessed)
Genus Brachyrophus Cope, 1878 † (uncertain, unassessed)
Genus Brachysaurana Strand, 1928 † (uncertain, unassessed)
Genus Brachysaurus Williston, 1897 † (uncertain, unassessed)
Genus Brachysuchus Case, 1929 (uncertain, unassessed)
Genus Brachytaenius von Meyer, 1842 (uncertain, unassessed)
Genus Brachytrachelus Giebel, 1850 (uncertain, unassessed)
Genus Brachyuraniscus Broili & Schroeder, 1935 † (uncertain, unassessed)
Genus Bradysuchus Haughton, 1929 (uncertain, unassessed)
Genus Brasileosaurus von Huene, 1931 † (uncertain, unassessed)
Genus Briba do Amaral, 1937 (uncertain, unassessed)
Genus Brodiechelys Nopcsa, 1928 † (uncertain, unassessed)
Genus Broila Bergounioux, 1932 (uncertain, unassessed)
Genus Brontopus Heyler & Lessertisseur, 1963 † (uncertain, unassessed)
Genus Broomicephalus Brink & Kitching, 1953 † (uncertain, unassessed)
Genus Broomisaurus Joleaud, 1920 † (uncertain, unassessed)
Genus Brownella Broom, 1913 † (uncertain, unassessed)
Genus Bubonias Cope, 1874 (uncertain, unassessed)
Genus Bungarus Daudin, 1803 (uncertain, unassessed)
Genus Bysmachelys Johnston, 1937 † (uncertain, unassessed)
Genus Bystra Hay, 1916 † (uncertain, unassessed)
Genus Cabritopsis Beddome, 1870 (uncertain, unassessed)
Genus Cacocalyx Cope, 1895 (uncertain, unassessed)
Genus Cacotus Günther, 1869 (uncertain, unassessed)
Genus Cadmus Theobald, 1868 (uncertain, unassessed)
Genus Cadurcosaurus Filhol, 1882 (uncertain, unassessed)
Genus Caiman Gray, 1844 (uncertain, unassessed)
Genus Caimanosuchus Kuhn, 1938 (uncertain, unassessed)
Genus Calamita Ritgen, 1828 (uncertain, unassessed)
Genus Calamodon do Amaral, 1937 (uncertain, unassessed)
Genus Calamophis Meyer, 1874 (uncertain, unassessed)
Genus Calamosaurus Lydekker, 1891 † (uncertain, unassessed)
Genus Calechidna Tschudi, 1846 (uncertain, unassessed)
Genus Callibrachion Boule & Glangeaud, 1893 † (uncertain, unassessed)
Genus Callinia Gray, 1869 (uncertain, unassessed)
Genus Callopistria Amaral, 1935 (uncertain, unassessed)
Genus Callopistria do Amaral, 1937 (uncertain, unassessed)
Genus Calonotus Jan, 1863 (uncertain, unassessed)
Genus Calophis Fitzinger, 1843 (uncertain, unassessed)
Genus Calyptrosaura Gray, 1865 (uncertain, unassessed)
Genus Camarataxis Cope, 1859 (uncertain, unassessed)
Genus Camilia Gray, 1845 (uncertain, unassessed)
Genus Camopsis Rafinesque, 1815 (uncertain, unassessed)
Genus Campylodon von Huene, 1929 (uncertain, unassessed)
Genus Cantinia Gray, 1845 (uncertain, unassessed)
Genus Cantorella Gray, 1870 (uncertain, unassessed)
Genus Capelliniosuchus Simonelli, 1896 (uncertain, unassessed)
Genus Cardiodon Owen, 1845 (uncertain, unassessed)
Genus Carlesia von Huene, 1931 † (uncertain, unassessed)
Genus Caryoderma Cope, 1886 † (uncertain, unassessed)
Genus Castresia Stefano, 1902 † (uncertain, unassessed)
Genus Catapherodon Rochebrune, 1885 (uncertain, unassessed)
Genus Catherpes Gistl, 1868 (uncertain, unassessed)
Genus Caudisona Fitzinger, 1826 (uncertain, unassessed)
Genus Caudocoelus von Huene, 1932 † (uncertain, unassessed)
Genus Caulodon Cope, 1877 † (uncertain, unassessed)
Genus Cautleya Theobald, 1879 † (uncertain, unassessed)
Genus Celesaurus Zenker, 1836 † (uncertain, unassessed)
Genus Centemodon Lea, 1856 (uncertain, unassessed)
Genus Centromastix Boulenger, 1916 (uncertain, unassessed)
Genus Centrophis Fitzinger (?), 1843 (uncertain, unassessed)
Genus Centroplites Müller, 1840 (uncertain, unassessed)
Genus Centrosaurus Lambe, 1904 † (uncertain, unassessed)
Genus Cephalastron von Huene, 1926 † (uncertain, unassessed)
Genus Cephalastronius von Huene, 1926 † (uncertain, unassessed)
Genus Cephalonia von Huene, 1926 † (uncertain, unassessed)
Genus Cephalophis Fitzinger, 1843 (uncertain, unassessed)
Genus Cephalosimus Chabanaud, 1916 (uncertain, unassessed)
Genus Cerastes Wagler, 1830 (uncertain, unassessed)
Genus Cerataelurus Broom, 1931 † (uncertain, unassessed)
Genus Ceratoblepharis Fitzinger, 1843 (uncertain, unassessed)
Genus Ceratochelys Huxley, 1887 (uncertain, unassessed)
Genus Ceratophallus Cope, 1893 (uncertain, unassessed)
Genus Cercocalamus Günther, 1863 (uncertain, unassessed)
Genus Cerdodon Broom, 1915 † (uncertain, unassessed)
Genus Cerdognathus Broom, 1915 † (uncertain, unassessed)
Genus Cerdops Broom, 1948 † (uncertain, unassessed)
Genus Cerdorhinus Broom, 1936 † (uncertain, unassessed)
Genus Cerdosuchoides Broom, 1936 † (uncertain, unassessed)
Genus Cerdosuchus Broom, 1936 † (uncertain, unassessed)
Genus Cetarthrosaurus Seeley, 1873 † (uncertain, unassessed)
Genus Chaelosaurus Jourdan, 1862 † (uncertain, unassessed)
Genus Chalcis Merrem, 1820 (uncertain, unassessed)
Genus Chameleon Bory de St. Vincent, 1823 (uncertain, unassessed)
Genus Chamoeleopsis Gray, 1830 (uncertain, unassessed)
Genus Champse Merrem, 1820 (uncertain, unassessed)
Genus Changpeipus Young, 1960 † (uncertain, unassessed)
Genus Charactodon Troschel, 1874 (uncertain, unassessed)
Genus Charitemys Hay, 1908 † (uncertain, unassessed)
Genus Chascax Ritgen, 1828 (uncertain, unassessed)
Genus Chauliodonta Fritsch, 1879 (uncertain, unassessed)
Genus Chaunolaemus Peters, 1870 (uncertain, unassessed)
Genus Cheilorhina Jan, 1862 (uncertain, unassessed)
Genus Cheirogaster Bergounioux, 1935 † (uncertain, unassessed)
Genus Chelaspodos Harkness, 1851 (uncertain, unassessed)
Genus Chelichnus Jardine, 1850 (uncertain, unassessed)
Genus Cheliphus Rafinesque, 1832 (uncertain, unassessed)
Genus Chelone Ritgen, 1828 (uncertain, unassessed)
Genus Chelonelithes de Paul de Lamanon, 1780 (uncertain, unassessed)
Genus Chelonemys Gray, 1864 (uncertain, unassessed)
Genus Chelonemys Jourdan, 1862 (uncertain, unassessed)
Genus Chelonia Harlan, 1842 (uncertain, unassessed)
Genus Chelonides Maack, 1869 † (uncertain, unassessed)
Genus Chelonides Portis, 1878 † (uncertain, unassessed)
Genus Chelonipus Lilienstern, 1939 † (uncertain, unassessed)
Genus Chelonoidis Fitzinger, 1843 (uncertain, unassessed)
Genus Chelyoposaurus Broom, 1904 † (uncertain, unassessed)
Genus Chelyoposuchus Kuhn, 1939 † (uncertain, unassessed)
Genus Chelyrhynchus Haughton, 1917 (uncertain, unassessed)
Genus Chelyzoon von Huene, 1902 † (uncertain, unassessed)
Genus Cheneosaurus Lambe, 1917 † (uncertain, unassessed)
Genus Chersobius Fitzinger, 1835 (uncertain, unassessed)
Genus Chersophis Fitzinger, 1843 (uncertain, unassessed)
Genus Chersus Wagler, 1830 (uncertain, unassessed)
Genus Chianopelas Tschudi, 1845 (uncertain, unassessed)
Genus Chiayusaurus Bohlin, 1953 † (uncertain, unassessed)
Genus Chilopoma Yarrow, 1875 † (uncertain, unassessed)
Genus Chiniquodon von Huene, 1936 (uncertain, unassessed)
Genus Chirocolus Wagler, 1830 (uncertain, unassessed)
Genus Chirotes Fleming, 1822 (uncertain, unassessed)
Genus Chirotes Merrem, 1820 (uncertain, unassessed)
Genus Chitracephalus Dollo, 1884 (uncertain, unassessed)
Genus Chiwetasaurus Haughton, 1928 † (uncertain, unassessed)
Genus Chloremys Gray, 1871 (uncertain, unassessed)
Genus Chloroechis Bonaparte, 1849 (uncertain, unassessed)
Genus Choerosaurus Haughton, 1929 † (uncertain, unassessed)
Genus Chorodromus Fitzinger, 1843 (uncertain, unassessed)
Genus Choroscopus Fitzinger, 1843 (uncertain, unassessed)
Genus Chrysolamprus Fitzinger, 1843 (uncertain, unassessed)
Genus Churchillia Baird & Girard, 1852 (uncertain, unassessed)
Genus Cimochelys Owen, 1842 † (uncertain, unassessed)
Genus Cincosaurus Aldrich & Jones, 1930 † (uncertain, unassessed)
Genus Cinothorax Fitzinger, 1835 (uncertain, unassessed)
Genus Cistecynodon Brink & Kitching, 1953 † (uncertain, unassessed)
Genus Cistula Gray, 1825 (uncertain, unassessed)
Genus Cladeiodon Owen, 1841 (uncertain, unassessed)
Genus Cladophis Duméril, 1859 (uncertain, unassessed)
Genus Cladyodon Owen, 1842 (uncertain, unassessed)
Genus Claorhynchus Cope, 1892 † (uncertain, unassessed)
Genus Clasmodosaurus Ameghino, 1899 † (uncertain, unassessed)
Genus Clemmys Wagler, 1830 (uncertain, unassessed)
Genus Clepsysaurus Lea, 1853 † (uncertain, unassessed)
Genus Cliftia Gray, 1849 (uncertain, unassessed)
Genus Cliorhizodon Twelvetrees, 1880 † (uncertain, unassessed)
Genus Clothelaps Cope, 1895 (uncertain, unassessed)
Genus Clothonia Daudin, 1803 (uncertain, unassessed)
Genus Clypeosaurus Gray, 1845 (uncertain, unassessed)
Genus Coahomasuchus Heckert & Lucas, 1999 † (uncertain, unassessed)
Genus Coartaredens Spencer & Storrs, 2002 † (uncertain, unassessed)
Genus Cobra Fitzinger, 1826 (uncertain, unassessed)
Genus Coburgosuchus Heller, 1954 † (uncertain, unassessed)
Genus Coccoessus Cope, 1862 (uncertain, unassessed)
Genus Colobopus Fitzinger, 1843 (uncertain, unassessed)
Genus Colossoemys Rodrigues, 1892 (uncertain, unassessed)
Genus Colubellus Philippi, 1899 (uncertain, unassessed)
Genus Columbosauripus Sternberg, 1932 (uncertain, unassessed)
Genus Composuchus von Huene in Soergel, 1932 † (uncertain, unassessed)
Genus Compsodon Hoepen, 1934 † (uncertain, unassessed)
Genus Compsosaurus Leidy, 1857 † (uncertain, unassessed)
Genus Comptichnus Ellenberger, 1972 † (uncertain, unassessed)
Genus Conchiosaurus von Meyer, 1833 † (uncertain, unassessed)
Genus Conchochelys Hay, 1905 (uncertain, unassessed)
Genus Congosaurus Dollo, 1914 (uncertain, unassessed)
Genus Conorhina Duméril & Bibron, 1854 (uncertain, unassessed)
Genus Constrictor Link, 1808 (uncertain, unassessed)
Genus Constrictor Wagler, 1830 (uncertain, unassessed)
Genus Continuoolithus Zelenitsky, Hills & Currie, 1996 † (uncertain, unassessed)
Genus Cophias Fitzinger, 1843 (uncertain, unassessed)
Genus Cophoscincus Peters, 1867 (uncertain, unassessed)
Genus Coralliophis Fitzinger, 1843 (uncertain, unassessed)
Genus Cormodactylus Fitzinger, 1861 (uncertain, unassessed)
Genus Coronophis Fitzinger, 1843 (uncertain, unassessed)
Genus Cosesaurus Ellenberger & Villalta, 1974 † (uncertain, unassessed)
Genus Cosmiosophis Jan, 1863 (uncertain, unassessed)
Genus Craspedochelys Rütimeyer, 1873 (uncertain, unassessed)
Genus Crealia Gray, 1858 (uncertain, unassessed)
Genus Cremastosaurus Cope, 1873 † (uncertain, unassessed)
Genus Criocephalus Broom, 1928 † (uncertain, unassessed)
Genus Cristasaura Gray, 1852 (uncertain, unassessed)
Genus Crossanthera Cope, 1893 (uncertain, unassessed)
Genus Crotulurus Rafinesque, 1820 (uncertain, unassessed)
Genus Crurosaurus von Huene, 1902 † (uncertain, unassessed)
Genus Cryptocynodon Seeley, 1895 † (uncertain, unassessed)
Genus Cryptoposcincus Mocquard, 1906 (uncertain, unassessed)
Genus Cryptosaurus Anonymous, 1833 † (uncertain, unassessed)
Genus Ctenocosta Fric, 1876 (uncertain, unassessed)
Genus Ctenodactylus Fitzinger, 1843 (uncertain, unassessed)
Genus Ctenodeira Fitzinger, 1843 (uncertain, unassessed)
Genus Ctenodon Wagler, 1830 (uncertain, unassessed)
Genus Ctenosaurus von Huene, 1902 † (uncertain, unassessed)
Genus Cubicodon Jaeger, 1828 † (uncertain, unassessed)
Genus Cuchoa Gray, 1844 (uncertain, unassessed)
Genus Cultripes Müller, 1832 (uncertain, unassessed)
Genus Cuminia Gray, 1841 (uncertain, unassessed)
Genus Cumnoria Seeley, 1888 (uncertain, unassessed)
Genus Custa Fleming, 1822 (uncertain, unassessed)
Genus Cyclochelys Bergounioux, 1953 † (uncertain, unassessed)
Genus Cyclogomphodon Broom, 1919 † (uncertain, unassessed)
Genus Cyclopus Heyler & Lessertisseur, 1963 † (uncertain, unassessed)
Genus Cyclosaurus Wagler, 1833 (uncertain, unassessed)
Genus Cylindricodon Jaeger, 1828 † (uncertain, unassessed)
Genus Cymatholcus Clark, 1932 (uncertain, unassessed)
Genus Cynariognathus Broom, 1931 † (uncertain, unassessed)
Genus Cynariops Broom, 1925 † (uncertain, unassessed)
Genus Cynidiognathus Haughton, 1922 (uncertain, unassessed)
Genus Cyniscodon Broom, 1915 † (uncertain, unassessed)
Genus Cyniscopoides Brink & Kitching, 1953 † (uncertain, unassessed)
Genus Cyniscops Broom, 1937 † (uncertain, unassessed)
Genus Cynodraco Owen, 1876 † (uncertain, unassessed)
Genus Cynogomphius Broom, 1932 † (uncertain, unassessed)
Genus Cynosaura Gray, 1831 (uncertain, unassessed)
Genus Cynosuchoides Broom, 1931 † (uncertain, unassessed)
Genus Cynosuchus Gray, 1862 (uncertain, unassessed)
Genus Cyonosaurus Olson, 1937 † (uncertain, unassessed)
Genus Cyprius Gray, 1845 (uncertain, unassessed)
Genus Cyrbasiodon Broom, 1931 † (uncertain, unassessed)
Genus Cyrtopus Heyler & Lessertisseur, 1963 † (uncertain, unassessed)
Genus Cyrtura Jaekel, 1904 † (uncertain, unassessed)
Genus Cystosaurus Geoffroy, 1833 (uncertain, unassessed)
Genus Dakotosaurus Branson & Mehl, 1933 † (uncertain, unassessed)
Genus Dasyderma Fitzinger, 1843 (uncertain, unassessed)
Genus Dasygnathus Huxley, 1880 † (uncertain, unassessed)
Genus Deinodon Leidy, 1856 (uncertain, unassessed)
Genus Deiropeda Fitzinger, 1843 (uncertain, unassessed)
Genus Delairichnus Haubold, 1971 † (uncertain, unassessed)
Genus Delphaciognathus Broom, 1932 † (uncertain, unassessed)
Genus Delphinognathus Seeley, 1892 † (uncertain, unassessed)
Genus Deltatmema Hatt & Langebartel, 1953 † (uncertain, unassessed)
Genus Dendrechides Duméril, 1856 (uncertain, unassessed)
Genus Dendroechis Fischer, 1855 (uncertain, unassessed)
Genus Dendrohyas Fitzinger, 1832 (uncertain, unassessed)
Genus Dendrophilus Fitzinger, 1843 (uncertain, unassessed)
Genus Derotremata Duméril, 1854 (uncertain, unassessed)
Genus Desmatodon Case, 1908 (uncertain, unassessed)
Genus Desmospondylus Williston, 1910 † (uncertain, unassessed)
Genus Deuterosauropodopus Ellenberger, 1972 † (uncertain, unassessed)
Genus Deuterotrisauropus Ellenberger, 1972 † (uncertain, unassessed)
Genus Diacium Cope, 1873 † (uncertain, unassessed)
Genus Diadectoides Case, 1911 (uncertain, unassessed)
Genus Diaelurodon Broom, 1911 † (uncertain, unassessed)
Genus Diasemosaurus Ameghino, 1898 † (uncertain, unassessed)
Genus Dibolosodon Ameghino, 1898 † (uncertain, unassessed)
Genus Diceratops Hatcher, 1905 (uncertain, unassessed)
Genus Diclida Rafinesque, 1832 (uncertain, unassessed)
Genus Dicloniscus Cope, 1892 (uncertain, unassessed)
Genus Dicranozygoma Seeley, 1900 † (uncertain, unassessed)
Genus Dicroglossus Günther, 1860 (uncertain, unassessed)
Genus Dicynodontoides Broom, 1940 † (uncertain, unassessed)
Genus Didanodon Osborn † (uncertain, unassessed)
Genus Didicla Rafinesque, 1832 (uncertain, unassessed)
Genus Digerrhum Cope, 1870 † (uncertain, unassessed)
Genus Dijaquesopus Ellenberger, 1972 † (uncertain, unassessed)
Genus Dilepis Gray, 1865 (uncertain, unassessed)
Genus Dimeropus Cope, 1892 (uncertain, unassessed)
Genus Dimodosaurus Pidancet & Chopard, 1863 † (uncertain, unassessed)
Genus Dinanomodon Broom, 1938 † (uncertain, unassessed)
Genus Dinartamus Broom, 1923 † (uncertain, unassessed)
Genus Dinilysia Woodward, 1901 (uncertain, unassessed)
Genus Dinocynodon Broom, 1929 † (uncertain, unassessed)
Genus Dinophis Marsh, 1861 (uncertain, unassessed)
Genus Dinophoneus Broom, 1923 † (uncertain, unassessed)
Genus Dinopolus Broom, 1936 † (uncertain, unassessed)
Genus Dinosaurus Rütimeyer, 1856 † (uncertain, unassessed)
Genus Dinosaurus Fischer de Waldheim, 1847 (uncertain, unassessed)
Genus Dinosphageus Broom, 1929 † (uncertain, unassessed)
Genus Dinosuchus Broom, 1936 † (uncertain, unassessed)
Genus Dinosuchus Gervais, 1876 (uncertain, unassessed)
Genus Diopecephalus Seeley, 1871 (uncertain, unassessed)
Genus Diopeus Cope, 1892 † (uncertain, unassessed)
Genus Dioptroblepharis Fitzinger, 1843 (uncertain, unassessed)
Genus Diplophallus Cope, 1893 (uncertain, unassessed)
Genus Diplosaurus Marsh, 1877 † (uncertain, unassessed)
Genus Dipsoglyphophis Barbour & Amaral, 1927 (uncertain, unassessed)
Genus Disparovum Vialov, 1986 † (uncertain, unassessed)
Genus Distopus Heyler & Lessertisseur, 1963 † (uncertain, unassessed)
Genus Dithyrosternon Pictet, 1857 † (uncertain, unassessed)
Genus Ditrochosaurus Gürich, 1890 † (uncertain, unassessed)
Genus Dixeya Haughton, 1928 † (uncertain, unassessed)
Genus Dolabrosaurus Berman & Reisz, 1992 † (uncertain, unassessed)
Genus Dolichobrachium Williston, 1904 † (uncertain, unassessed)
Genus Dolichopareia Haughton, 1929 (uncertain, unassessed)
Genus Dolichopodus Gilmore, 1926 † (uncertain, unassessed)
Genus Dolichosuchus von Huene in Soergel, 1932 † (uncertain, unassessed)
Genus Dolichovertebra Huene † (uncertain, unassessed)
Genus Doliobrachium Williston, 1904 † (uncertain, unassessed)
Genus Doliovertebra von Huene, 1902 † (uncertain, unassessed)
Genus Dolychorhynchops Williston, 1902 (uncertain, unassessed)
Genus Dongoka Gray, 1869 (uncertain, unassessed)
Genus Dopasia Gray, 1853 (uncertain, unassessed)
Genus Doratodon Seeley, 1881 † (uncertain, unassessed)
Genus Dorfia Gray, 1839 (uncertain, unassessed)
Genus Dracocella Gray, 1845 (uncertain, unassessed)
Genus Dracocephalus Brink & Kitching, 1953 † (uncertain, unassessed)
Genus Draconiscus Philippi, 1899 (uncertain, unassessed)
Genus Dracontopsis Fitzinger, 1843 (uncertain, unassessed)
Genus Draconurus Thienemann, 1828 (uncertain, unassessed)
Genus Dragonne Oken, 1817 (uncertain, unassessed)
Genus Dromicosaurus van Hoepen, 1920 † (uncertain, unassessed)
Genus Dryodynastes Fitzinger, 1843 (uncertain, unassessed)
Genus Dryomedusa Fitzinger, 1843 (uncertain, unassessed)
Genus Dryophilus Fitzinger, 1843 (uncertain, unassessed)
Genus Dryptosauroides Heune in Soergel, 1932 † (uncertain, unassessed)
Genus Dugundia Dunn, 1944 (uncertain, unassessed)
Genus Dvina Amalitsky, 1922 † (uncertain, unassessed)
Genus Dynamosaurus Osborn, 1905 † (uncertain, unassessed)
Genus Dysalotosaurus Pompeckj, 1920 † (uncertain, unassessed)
Genus Eberhardia Angel, 1920 (uncertain, unassessed)
Genus Ebrachosuchus Kuhn, 1936 † (uncertain, unassessed)
Genus Eccasaurus Broom, 1910 † (uncertain, unassessed)
Genus Echidnoides Mauduyt, 1844 (uncertain, unassessed)
Genus Ectocynodon Cope, 1878 † (uncertain, unassessed)
Genus Ekbainacanthus Yakowlew, 1902 (uncertain, unassessed)
Genus Elachistosuchus Janensch, 1949 † (uncertain, unassessed)
Genus Elaphropus Fitzinger, 1843 (uncertain, unassessed)
Genus Elaphrosuchus Broom, 1946 † (uncertain, unassessed)
Genus Elapocephalus Günther, 1858 (uncertain, unassessed)
Genus Elapomorphus Smith, 1849 (uncertain, unassessed)
Genus Elaposoma Fitzinger, 1843 (uncertain, unassessed)
Genus Elcabrosaurus Case, 1907 (uncertain, unassessed)
Genus Elephantopus Gray, 1874 (uncertain, unassessed)
Genus Elosaurus Peterson & Gilmore, 1902 † (uncertain, unassessed)
Genus Emia Gray, 1870 (uncertain, unassessed)
Genus Emmenia Gray, 1870 (uncertain, unassessed)
Genus Empagusia Gray, 1838 (uncertain, unassessed)
Genus Empedias Cope, 1881 † (uncertain, unassessed)
Genus Empedocles Cope, 1878 † (uncertain, unassessed)
Genus Emphabias Cope, 1894 (uncertain, unassessed)
Genus Emydes Brongniart, 1806 (uncertain, unassessed)
Genus Emydichnium Nopcsa, 1923 † (uncertain, unassessed)
Genus Emydochampsa Broom, 1912 † (uncertain, unassessed)
Genus Emydops Broom, 1912 † (uncertain, unassessed)
Genus Emydorhinus Broom, 1935 † (uncertain, unassessed)
Genus Emydorhynchus Broom, 1914 † (uncertain, unassessed)
Genus Emyoides Gray, 1844 (uncertain, unassessed)
Genus Emysuchus Nopcsa, 1924 † (uncertain, unassessed)
Genus Enaliochelys Seeley, 1869 † (uncertain, unassessed)
Genus Endodromicus Gistl, 1868 (uncertain, unassessed)
Genus Endogomphodon Broom, 1932 † (uncertain, unassessed)
Genus Engyomasaurus Kaup & Scholl, 1834 † (uncertain, unassessed)
Genus Engystomops Jiménez de la Espada, 1872 (uncertain, unassessed)
Genus Enobius Broom, 1923 † (uncertain, unassessed)
Genus Enthekiodon Hulke, 1869 † (uncertain, unassessed)
Genus Entradasuchus Hunt & Lockley, 1995 † (uncertain, unassessed)
Genus Eocenosuchus Kuhn, 1938 † (uncertain, unassessed)
Genus Eocyclops Broom, 1914 † (uncertain, unassessed)
Genus Eosimops Broom, 1922 † (uncertain, unassessed)
Genus Eosuchus Dollo, 1907 † (uncertain, unassessed)
Genus Eosuchus Watson, 1912 † (uncertain, unassessed)
Genus Epanterias Cope, 1878 † (uncertain, unassessed)
Genus Ephoenosaurus Anonymous, 1839 † (uncertain, unassessed)
Genus Epicampodon Lydekker, 1885 † (uncertain, unassessed)
Genus Epiglottophis Cope, 1891 (uncertain, unassessed)
Genus Epirhina Jan, 1862 (uncertain, unassessed)
Genus Eremioplanis Fitzinger, 1843 (uncertain, unassessed)
Genus Eremioscopus Fitzinger, 1843 (uncertain, unassessed)
Genus Erichosaurus Ameghino, 1899 † (uncertain, unassessed)
Genus Eridanosaurus Balsamo-Crivelli, 1864 † (uncertain, unassessed)
Genus Eriphostoma Broom, 1911 † (uncertain, unassessed)
Genus Erizia Gray, 1865 (uncertain, unassessed)
Genus Erpetopus Moodie, 1929 (uncertain, unassessed)
Genus Erpetosuchus Newton, 1893 (uncertain, unassessed)
Genus Erycopsis Fitzinger, 1843 (uncertain, unassessed)
Genus Eryma Gray, 1870 (uncertain, unassessed)
Genus Erymnus Wagler, 1830 (uncertain, unassessed)
Genus Erythrophis Fitzinger, 1843 (uncertain, unassessed)
Genus Erythroxyrhopus Thompson, 1914 (uncertain, unassessed)
Genus Esterodon Seeley, 1894 (uncertain, unassessed)
Genus Eubrachiosaurus Williston, 1904 † (uncertain, unassessed)
Genus Eucamerotus Hulke, 1872 † (uncertain, unassessed)
Genus Eucephalus Fitzinger, 1843 (uncertain, unassessed)
Genus Eucnemesaurus Hoepen, 1920 † (uncertain, unassessed)
Genus Eudactylus Fitzinger, 1843 (uncertain, unassessed)
Genus Eudioptra Fitzinger, 1843 (uncertain, unassessed)
Genus Eudraco Haeckel, 1895 (uncertain, unassessed)
Genus Euliolaemus Tschudi, 1846 (uncertain, unassessed)
Genus Eulophus Tschudi, 1845 (uncertain, unassessed)
Genus Eumantellia Broom, 1935 † (uncertain, unassessed)
Genus Eumatthevia Broom, 1930 † (uncertain, unassessed)
Genus Eumecoides Taylor, 1941 † (uncertain, unassessed)
Genus Eumekichnium Nopcsa, 1923 † (uncertain, unassessed)
Genus Eunotus Fitzinger, 1843 (uncertain, unassessed)
Genus Euophrys Günther, 1858 (uncertain, unassessed)
Genus Eupachemys Leidy, 1877 (uncertain, unassessed)
Genus Eupeplus Wagler, 1830 (uncertain, unassessed)
Genus Eupodosaurus Boulenger, 1891 (uncertain, unassessed)
Genus Euprepes Philippi, 1899 (uncertain, unassessed)
Genus Euprotodon Cope, 1860 (uncertain, unassessed)
Genus Eurhous Fitzinger, 1861 (uncertain, unassessed)
Genus Eurichnus Lull, 1942 (uncertain, unassessed)
Genus Eurosaurus Fischer de Waldheim, 1842 (uncertain, unassessed)
Genus Euryaspis Wagner, 1861 (uncertain, unassessed)
Genus Eurycarpus Seeley, 1889 (uncertain, unassessed)
Genus Eurycervix von Huene, 1902 † (uncertain, unassessed)
Genus Eurydorus Leidy, 1859 (uncertain, unassessed)
Genus Eurypterygius Jaekel, 1904 † (uncertain, unassessed)
Genus Eurystephus Cope, 1862 (uncertain, unassessed)
Genus Eutynichium Nopcsa, 1923 † (uncertain, unassessed)
Genus Exorhina Jan, 1862 (uncertain, unassessed)
Genus Exypnestes Kaup, 1826 (uncertain, unassessed)
Genus Francosaurophis Kuhn, 1959 † (uncertain, unassessed)
Genus Francosuchus Kuhn, 1932 † (uncertain, unassessed)
Genus Fremouwsaurus Gow, 1992 † (uncertain, unassessed)
Genus Frenosaurus Welles, 1943 † (uncertain, unassessed)
Genus Furcapes Demathieu, 1977 (uncertain, unassessed)
Genus Furcillus Cope, 1892 (uncertain, unassessed)
Genus Galecranium Broom, 1948 † (uncertain, unassessed)
Genus Galeophrys Broom, 1948 † (uncertain, unassessed)
Genus Galerhinus Broom, 1935 † (uncertain, unassessed)
Genus Galerhynchus Broom, 1937 † (uncertain, unassessed)
Genus Gampsodactylum Nopcsa, 1923 † (uncertain, unassessed)
Genus Gargalonipes Heyler & Montenat, 1981 † (uncertain, unassessed)
Genus Gastrotropis Fitzinger, 1843 (uncertain, unassessed)
Genus Gavial Cuvier, 1807 (uncertain, unassessed)
Genus Genovum von Huene, 1950 † (uncertain, unassessed)
Genus Geodites Rafinesque, 1832 (uncertain, unassessed)
Genus Geoemys Agassiz, 1846 (uncertain, unassessed)
Genus Geoliemys Matsumoto, 1929 † (uncertain, unassessed)
Genus Gephyrinus Cope, 1886 (uncertain, unassessed)
Genus Gerrhopilus Fitzinger, 1843 (uncertain, unassessed)
Genus Gerrhopygus Gray, 1845 (uncertain, unassessed)
Genus Gharialis Theobald, 1876 (uncertain, unassessed)
Genus Gigantoscelus Van Hoepen, 1916 † (uncertain, unassessed)
Genus Gilmoreia Taylor, 1951 † (uncertain, unassessed)
Genus Glaniolestes Cope, 1862 (uncertain, unassessed)
Genus Glanosuchus Broom, 1904 † (uncertain, unassessed)
Genus Glaphyrorhynchus Meyer, 1842 (uncertain, unassessed)
Genus Glaridodon Seeley, 1888 (uncertain, unassessed)
Genus Glaucosaurus Williston, 1915 † (uncertain, unassessed)
Genus Glochinodon van Hoepen, 1916 (uncertain, unassessed)
Genus Glochinodontoides Haughton, 1924 (uncertain, unassessed)
Genus Glyptoderma Fitzinger, 1843 (uncertain, unassessed)
Genus Gomphodontoides Brink & Kitching, 1951 † (uncertain, unassessed)
Genus Gomphodontosuchus von Huene, 1928 (uncertain, unassessed)
Genus Gongylocormus Fitzinger, 1843 (uncertain, unassessed)
Genus Gongyloseps Böttger, 1883 (uncertain, unassessed)
Genus Goniosaurus Meyer, 1858 † (uncertain, unassessed)
Genus Gonodactylus Gray, 1830 (uncertain, unassessed)
Genus Gonyechis Fitzinger, 1843 (uncertain, unassessed)
Genus Gonyodipsas Fitzinger, 1843 (uncertain, unassessed)
Genus Gopher Gray, 1870 (uncertain, unassessed)
Genus Gorgonognathus Haughton, 1915 † (uncertain, unassessed)
Genus Gorgonops Owen, 1876 † (uncertain, unassessed)
Genus Gorgonorhinus Broom, 1937 † (uncertain, unassessed)
Genus Gracilisaurus Weigelt, 1930 † (uncertain, unassessed)
Genus Graoullyodon Godefroit & Cuny, 1997 † (uncertain, unassessed)
Genus Gresslyosaurus Rütimeyer, 1857 † (uncertain, unassessed)
Genus Grumuliovum Vialov, 1986 † (uncertain, unassessed)
Genus Gryphus Wagler, 1830 (uncertain, unassessed)
Genus Gryposuchus Gürich, 1912 † (uncertain, unassessed)
Genus Gumatagichnus Gabunia, Kurbatov & Sennikov, 1988 † (uncertain, unassessed)
Genus Guyomarchia Angel, 1923 (uncertain, unassessed)
Genus Gwyneddosaurus Bock, 1945 † (uncertain, unassessed)
Genus Gymnarthrus Case, 1910 (uncertain, unassessed)
Genus Gymnogomphius Wagler, 1833 (uncertain, unassessed)
Genus Hainosarus Dollo, 1885 (uncertain, unassessed)
Genus Halidracon Wagler, 1830 (uncertain, unassessed)
Genus Halilimnosaurus Ritgen, 1826 † (uncertain, unassessed)
Genus Halticosaurus von Huene, 1908 † (uncertain, unassessed)
Genus Hamatopus Lilienstern, 1939 † (uncertain, unassessed)
Genus Hapalolepis Peters, 1871 (uncertain, unassessed)
Genus Haploscincus Cope, 1892 (uncertain, unassessed)
Genus Harpagopus Hitchcock, 1848 (uncertain, unassessed)
Genus Harpagosaurus Gilmore, 1928 † (uncertain, unassessed)
Genus Harpedactylus Hitchcock, 1848 (uncertain, unassessed)
Genus Haughtoniana Boonstra, 1938 † (uncertain, unassessed)
Genus Hebius Thomson, 1913 (uncertain, unassessed)
Genus Hedronchus Cope, 1877 † (uncertain, unassessed)
Genus Helagras Cope, 1883 † (uncertain, unassessed)
Genus Helcura Hitchcock, 1848 (uncertain, unassessed)
Genus Helemys Rütimeyer, 1859 (uncertain, unassessed)
Genus Heliophilus Fitzinger, 1843 (uncertain, unassessed)
Genus Helioscopus Fitzinger, 1843 (uncertain, unassessed)
Genus Helminthoelaps Jan, 1859 (uncertain, unassessed)
Genus Helodectes Cope, 1881 † (uncertain, unassessed)
Genus Helopus Wiman, 1929 † (uncertain, unassessed)
Genus Hemicordylus Smith, 1838 (uncertain, unassessed)
Genus Hemidipsas Günther, 1858 (uncertain, unassessed)
Genus Hemidryas Peters & Doria, 1878 (uncertain, unassessed)
Genus Hemigenius Dugès, 1888 (uncertain, unassessed)
Genus Hemydactylus Goldfuss, 1820 (uncertain, unassessed)
Genus Heptagerrhon Fitzinger, 1861 (uncertain, unassessed)
Genus Heremites Gray, 1845 (uncertain, unassessed)
Genus Herpetaethiops Günther, 1866 (uncertain, unassessed)
Genus Herpetochalcis Böttger, 1883 (uncertain, unassessed)
Genus Herpetochirus Seeley, 1895 (uncertain, unassessed)
Genus Herpetotragus Fitzinger, 1843 (uncertain, unassessed)
Genus Herpystezoum Hitchcock, 1848 (uncertain, unassessed)
Genus Heteroclemmys Peters, 1874 (uncertain, unassessed)
Genus Heterodontosuchus Lucas, 1898 † (uncertain, unassessed)
Genus Heterolepis Fitzinger, 1843 (uncertain, unassessed)
Genus Heteronotus Hallowell, 1857 (uncertain, unassessed)
Genus Heteropython de Rochebrune, 1880 (uncertain, unassessed)
Genus Heterosuchus Seeley, 1887 † (uncertain, unassessed)
Genus Higina Gray, 1842 (uncertain, unassessed)
Genus Hikanodon Keferstein, 1834 (uncertain, unassessed)
Genus Hispanochampsa Kälin, 1936 † (uncertain, unassessed)
Genus Holcodus Gibbes, 1850 (uncertain, unassessed)
Genus Homalopsida Jan, 1861 (uncertain, unassessed)
Genus Homalosaurus Hallowell, 1852 (uncertain, unassessed)
Genus Homodactylus Fitzinger, 1843 (uncertain, unassessed)
Genus Homorophus Cope, 1871 † (uncertain, unassessed)
Genus Hoplichnus Hitchcock, 1848 (uncertain, unassessed)
Genus Hoplitosaurus von Huene, 1942 † (uncertain, unassessed)
Genus Hoplosaurus Seeley, 1881 † (uncertain, unassessed)
Genus Hortalotarsus Seeley, 1894 (uncertain, unassessed)
Genus Hortulia Gray, 1842 (uncertain, unassessed)
Genus Huehuecuetzpalli Reynoso, 1998 † (uncertain, unassessed)
Genus Hueneus Toerien, 1953 † (uncertain, unassessed)
Genus Hunanpus Zeng, 1982 † (uncertain, unassessed)
Genus Hyaenasuchus Broom, 1908 † (uncertain, unassessed)
Genus Hyalinus Merrem, 1820 (uncertain, unassessed)
Genus Hybemys Leidy, 1871 (uncertain, unassessed)
Genus Hydrechis Ritgen, 1828 (uncertain, unassessed)
Genus Hydromeda Aldrich & Jones, 1930 † (uncertain, unassessed)
Genus Hydrone Rafinesque, 1814 (uncertain, unassessed)
Genus Hydropelta Wagner, 1860 (uncertain, unassessed)
Genus Hydrophilophis Schmidt, 1852 (uncertain, unassessed)
Genus Hydrosaurus Wagler, 1830 (uncertain, unassessed)
Genus Hydroscopus Fitzinger, 1843 (uncertain, unassessed)
Genus Hyenosaurus Broom, 1935 † (uncertain, unassessed)
Genus Hylaeochelys Lydekker, 1889 † (uncertain, unassessed)
Genus Hylogyne Knight (uncertain, unassessed)
Genus Hyorhynchus Seeley, 1889 (uncertain, unassessed)
Genus Hypopnous Cope, 1895 (uncertain, unassessed)
Genus Hypsiscopus Fitzinger, 1843 (uncertain, unassessed)
Genus Ibiba Gray, 1825 (uncertain, unassessed)
Genus Ichthyosuchus Cope, 1872 † (uncertain, unassessed)
Genus Ichthyoterus Rouillier, 1847 (uncertain, unassessed)
Genus Icticephalus Broom, 1915 † (uncertain, unassessed)
Genus Ictidochampsa Broom, 1948 † (uncertain, unassessed)
Genus Ictidodon Broom, 1925 † (uncertain, unassessed)
Genus Ictidodraco Broom & Robinson, 1948 † (uncertain, unassessed)
Genus Ictidognathus Broom, 1911 † (uncertain, unassessed)
Genus Ictidoparia Broom, 1925 † (uncertain, unassessed)
Genus Ictidopsis Broom, 1912 † (uncertain, unassessed)
Genus Ictidopsis Van Hoepen, 1916 (uncertain, unassessed)
Genus Ictidosaurus Broom, 1903 † (uncertain, unassessed)
Genus Ictidosuchus Broom, 1900 † (uncertain, unassessed)
Genus Iguanavus Marsh, 1872 (uncertain, unassessed)
Genus Iguanosaurus Ritgen, 1828 † (uncertain, unassessed)
Genus Impensodens Hatt & Langebartel, 1953 † (uncertain, unassessed)
Genus Indochelys Datta, Manna, Ghosh & Das, 2000 † (uncertain, unassessed)
Genus Inostranzewia Amelitzki, 1901 † (uncertain, unassessed)
Genus Inusitatodon Brink & Kitching, 1953 † (uncertain, unassessed)
Genus Irenesauripus Sternberg, 1932 (uncertain, unassessed)
Genus Irenichnites Sternberg, 1932 (uncertain, unassessed)
Genus Iridophis Fitzinger, 1861 (uncertain, unassessed)
Genus Ischnosaurus Thollière, 1856 † (uncertain, unassessed)
Genus Ischyrodon Merian, 1838 (uncertain, unassessed)
Genus Ischyrosaurus Cope, 1870 † (uncertain, unassessed)
Genus Ischyrotherium Leidy, 1857 (uncertain, unassessed)
Genus Isfjordosaurus Motani, 1999 † (uncertain, unassessed)
Genus Isocampe Hitchcock, 1858 (uncertain, unassessed)
Genus Isodactylus Gray, 1845 (uncertain, unassessed)
Genus Isodontosaurus Gilmore, 1943 † (uncertain, unassessed)
Genus Isselosaurus Filhol, 1888 † (uncertain, unassessed)
Genus Istiocercus Fitzinger, 1843 (uncertain, unassessed)
Genus Janusichnus Ceoloni, Conti, Mariotti & Nicosia, 1988 † (uncertain, unassessed)
Genus Jesairosaurus Jalil, 1997 † (uncertain, unassessed)
Genus Jonkeria van Hoepen, 1916 (uncertain, unassessed)
Genus Junggarsuchus Clark, Xu, Forster & Wang, 2004 † (uncertain, unassessed)
Genus Kallistira Hay, 1908 † (uncertain, unassessed)
Genus Karoomys Broom, 1903 † (uncertain, unassessed)
Genus Kayentasuchus Clark & Sues, 2002 † (uncertain, unassessed)
Genus Keirognathus Seeley, 1888 † (uncertain, unassessed)
Genus Keneus Cocteau, 1837 (uncertain, unassessed)
Genus Keratocephalus von Huene, 1931 † (uncertain, unassessed)
Genus Kionocrania Stannius, 1856 (uncertain, unassessed)
Genus Kitchingia Broom & George, 1950 † (uncertain, unassessed)
Genus Kladeisteriodon Plieninger, 1846 (uncertain, unassessed)
Genus Koalemasaurus Haughton, 1929 † (uncertain, unassessed)
Genus Koiloskiosaurus von Huene, 1911 † (uncertain, unassessed)
Genus Kolposaurus Skuphos, 1893 † (uncertain, unassessed)
Genus Kolposaurus Camp, 1942 (uncertain, unassessed)
Genus Koprolithes Kloeden, 1834 (uncertain, unassessed)
Genus Korros Boie, 1828 (uncertain, unassessed)
Genus Kouphichnium Nopcsa, 1923 † (uncertain, unassessed)
Genus Koupia Boonstra, 1948 † (uncertain, unassessed)
Genus Labionaris Brocchi, 1876 (uncertain, unassessed)
Genus Lacertina Meuschen, 1778 (uncertain, unassessed)
Genus Lacertoidopus Ellenberger, 1972 † (uncertain, unassessed)
Genus Laeviovum Vialov, 1986 † (uncertain, unassessed)
Genus Laiyangpus Young, 1960 † (uncertain, unassessed)
Genus Lamiasaurus Watson, 1914 † (uncertain, unassessed)
Genus Lampreremias Boulenger, 1918 (uncertain, unassessed)
Genus Lanceosaurus Gilmore, 1928 † (uncertain, unassessed)
Genus Lanthanolania Modesto & Reisz, 2003 † (uncertain, unassessed)
Genus Laophis Owen, 1857 † (uncertain, unassessed)
Genus Laoporus Lull, 1918 (uncertain, unassessed)
Genus Latastea Reuss, 1929 (uncertain, unassessed)
Genus Latasteopara Reuss, 1935 (uncertain, unassessed)
Genus Leavachia Broom, 1948 † (uncertain, unassessed)
Genus Leiogerrhon Fitzinger, 1843 (uncertain, unassessed)
Genus Leipsanosaurus Nopcsa, 1918 † (uncertain, unassessed)
Genus Lejosophis Jan, 1862 (uncertain, unassessed)
Genus Leontosaurus Broom & George, 1950 † (uncertain, unassessed)
Genus Lepidon Swainson, 1839 (uncertain, unassessed)
Genus Lepidotosaurus Hancock & Howse, 1870 † (uncertain, unassessed)
Genus Leptocranius Bronn, 1837 (uncertain, unassessed)
Genus Leptorhytaon Günther, 1858 (uncertain, unassessed)
Genus Leptorrhamphus Ambrosetti, 1890 † (uncertain, unassessed)
Genus Leptorynchus Falconer & Cautley, 1837 (uncertain, unassessed)
Genus Leptosaurus Fitzinger, 1843 (uncertain, unassessed)
Genus Leptospondylus Owen, 1854 † (uncertain, unassessed)
Genus Leptosuchus Case, 1922 (uncertain, unassessed)
Genus Lesticodus Leidy, 1859 (uncertain, unassessed)
Genus Leydiosuchus Lambe, 1907 (uncertain, unassessed)
Genus Lianghusuchus Young, 1949 † (uncertain, unassessed)
Genus Lianthera Cope, 1893 (uncertain, unassessed)
Genus Liban Bonaparte, 1831 (uncertain, unassessed)
Genus Limnosaurus Marsh, 1872 † (uncertain, unassessed)
Genus Lindholmemys Riabinin, 1935 † (uncertain, unassessed)
Genus Liophallus Cope, 1895 (uncertain, unassessed)
Genus Liosteira Fitzinger, 1843 (uncertain, unassessed)
Genus Liotropis Fitzinger, 1843 (uncertain, unassessed)
Genus Lissophis Hallowell, 1857 (uncertain, unassessed)
Genus Litargosuchus Clark & Sues, 2002 † (uncertain, unassessed)
Genus Lodia Baird & Girard, 1853 (uncertain, unassessed)
Genus Loncosaurus Ameghino, 1899 † (uncertain, unassessed)
Genus Longipes Demathieu, 1977 (uncertain, unassessed)
Genus Lophodeira Fitzinger, 1843 (uncertain, unassessed)
Genus Lophoprosopus Mehl, 1915 † (uncertain, unassessed)
Genus Lophroprosopus Mehl, 1915 † (uncertain, unassessed)
Genus Loricotherium Weigelt, 1929 (uncertain, unassessed)
Genus Loxodon Jan, 1867 (uncertain, unassessed)
Genus Luetkesaurus Kiprijanoff, 1883 † (uncertain, unassessed)
Genus Lupeosaurus Romer, 1937 † (uncertain, unassessed)
Genus Lycaenodontoides Haughton, 1929 (uncertain, unassessed)
Genus Lycaenognathus Broom, 1925 † (uncertain, unassessed)
Genus Lycaenoides Broom, 1932 † (uncertain, unassessed)
Genus Lycedops Broom, 1935 † (uncertain, unassessed)
Genus Lycochampsa Broom, 1915 † (uncertain, unassessed)
Genus Lycognathus Broom, 1913 † (uncertain, unassessed)
Genus Lycosaurus Owen, 1876 † (uncertain, unassessed)
Genus Mabuiopsis Angel, 1925 (uncertain, unassessed)
Genus Macellodus Owen, 1854 † (uncertain, unassessed)
Genus Macrobothrium Fitzinger, 1843 (uncertain, unassessed)
Genus Macrocephalosaurus Gilmore, 1943 † (uncertain, unassessed)
Genus Macrocephalus Fitzinger, 1843 (uncertain, unassessed)
Genus Macrochelys Meyer, 1858 (uncertain, unassessed)
Genus Macrodontophion Zborzevski, 1834 (uncertain, unassessed)
Genus Macromirosaurus Curioni, 1847 † (uncertain, unassessed)
Genus Macrophelsuma Hoffstetter, 1946 † (uncertain, unassessed)
Genus Macrorhynchus Dunker, 1843 (uncertain, unassessed)
Genus Macroscelesaurus Haughton, 1918 † (uncertain, unassessed)
Genus Macroscelosaurus Münster, 1852 † (uncertain, unassessed)
Genus Macrospondylus Brehm, 1831 (uncertain, unassessed)
Genus Macrotrachelus Giebel, 1850 (uncertain, unassessed)
Genus Maeriophis Andrews, 1901 † (uncertain, unassessed)
Genus Mafatrisauropus Ellenberger, 1972 † (uncertain, unassessed)
Genus Magnosaurus von Huene in Soergel, 1932 † (uncertain, unassessed)
Genus Magyarosaurus von Huene in Soergel, 1932 † (uncertain, unassessed)
Genus Maraisaurus Boonstra, 1953 † (uncertain, unassessed)
Genus Marmarosaurus Owen, 1845 † (uncertain, unassessed)
Genus Marmoretta Evans, 1991 † (uncertain, unassessed)
Genus Mastigura Fleming, 1822 (uncertain, unassessed)
Genus Matamata Merrem, 1820 (uncertain, unassessed)
Genus Maudia Gray, 1858 (uncertain, unassessed)
Genus Megablabes Günther, 1865 (uncertain, unassessed)
Genus Megacephalus Fitzinger, 1843 (uncertain, unassessed)
Genus Megachersine Hewitt, 1933 (uncertain, unassessed)
Genus Megachirella Renesto & Posenato, 2003 † (uncertain, unassessed)
Genus Megacnemus von Huene, 1954 † (uncertain, unassessed)
Genus Megacyclops Broom, 1931 † (uncertain, unassessed)
Genus Megadactylus Fitzinger, 1843 (uncertain, unassessed)
Genus Megadontosuchus Mook, 1955 † (uncertain, unassessed)
Genus Megalocercus Duméril, 1859 (uncertain, unassessed)
Genus Megasaurus Gilmore, 1928 † (uncertain, unassessed)
Genus Megasternon Gray, 1844 † (uncertain, unassessed)
Genus Megophias Rafinesque, 1817 (uncertain, unassessed)
Genus Mehliella Strand, 1932 (uncertain, unassessed)
Genus Melanelaps Wall, 1906 (uncertain, unassessed)
Genus Melanogenys Tschudi, 1846 (uncertain, unassessed)
Genus Melanothyris Romer, 1952 (uncertain, unassessed)
Genus Melinodon Broom, 1905 † (uncertain, unassessed)
Genus Melitosaurus Hulke, 1871 † (uncertain, unassessed)
Genus Menatalligator Piton, 1937 (uncertain, unassessed)
Genus Menodon von Meyer, 1835 (uncertain, unassessed)
Genus Mesocoronis Reuss, 1927 (uncertain, unassessed)
Genus Mesodeca Rafinesque, 1832 (uncertain, unassessed)
Genus Mesoleptos Cornalia in Cornalia & Chiozza, 1851 (uncertain, unassessed)
Genus Mesomycterus Cope, 1892 (uncertain, unassessed)
Genus Mesorhinis Reuss, 1927 (uncertain, unassessed)
Genus Mesorhinus Jaekel, 1910 (uncertain, unassessed)
Genus Mesosuchus Watson, 1912 (uncertain, unassessed)
Genus Metarhinus Jaekel, 1910 (uncertain, unassessed)
Genus Metarmosaruus Cope, 1878 † (uncertain, unassessed)
Genus Metopophis Peters, 1870 (uncertain, unassessed)
Genus Micaela Werner, 1918 (uncertain, unassessed)
Genus Michellia Müller, 1911 (uncertain, unassessed)
Genus Micrictodon Broom, 1937 † (uncertain, unassessed)
Genus Microblepharis Fitzinger, 1843 (uncertain, unassessed)
Genus Microctenus Fitzinger, 1843 (uncertain, unassessed)
Genus Microdactylus Agassiz, 1844 (uncertain, unassessed)
Genus Microdactylus Fitzinger, 1843 (uncertain, unassessed)
Genus Microgomphodon Seeley, 1895 (uncertain, unassessed)
Genus Microhelodon Broom, 1931 † (uncertain, unassessed)
Genus Microleptosaurus Skuphos, 1893 † (uncertain, unassessed)
Genus Microsauropus Moodie, 1929 (uncertain, unassessed)
Genus Microterapodiscus Ellenberger, 1972 † (uncertain, unassessed)
Genus Microtheledon Broom, 1936 † (uncertain, unassessed)
Genus Millerettoides Broom, 1948 † (uncertain, unassessed)
Genus Millerettops Broom, 1948 † (uncertain, unassessed)
Genus Millerina Broom, 1938 † (uncertain, unassessed)
Genus Mimeosaurus Gilmore, 1943 † (uncertain, unassessed)
Genus Mitylia Gray, 1858 (uncertain, unassessed)
Genus Mochlodon Seeley, 1881 † (uncertain, unassessed)
Genus Mochlorhinus Seeley, 1898 (uncertain, unassessed)
Genus Moltenotetrapodiscus Ellenberger, 1972 † (uncertain, unassessed)
Genus Monachelys Williams, 1952 † (uncertain, unassessed)
Genus Monaspis Smith, 1849 (uncertain, unassessed)
Genus Monobothris Cope, 1894 (uncertain, unassessed)
Genus Monodiastema Bibron in Duméril & Bibron, 1854 (uncertain, unassessed)
Genus Monophorus Cope, 1892 (uncertain, unassessed)
Genus Monophyaspis Cope, 1892 (uncertain, unassessed)
Genus Monoplocus Günther, 1859 (uncertain, unassessed)
Genus Moodieichnus Sarjeant, 1971 † (uncertain, unassessed)
Genus Morenoa Dugés, 1906 (uncertain, unassessed)
Genus Morinosaurus Sauvage, 1874 † (uncertain, unassessed)
Genus Moschognathus Broom, 1914 † (uncertain, unassessed)
Genus Moschoides Byrne, 1938 † (uncertain, unassessed)
Genus Moschorhynchus Broom, 1936 † (uncertain, unassessed)
Genus Mosellaesaurus Monard, 1846 † (uncertain, unassessed)
Genus Mygalesaurus Broom, 1942 † (uncertain, unassessed)
Genus Mygalesuchus Broom, 1942 † (uncertain, unassessed)
Genus Myloleucus Cope, 1872 † (uncertain, unassessed)
Genus Myobradypterygius von Huene, 1927 (uncertain, unassessed)
Genus Myopterygius von Huene, 1923 † (uncertain, unassessed)
Genus Naiadochelys Hay, 1908 † (uncertain, unassessed)
Genus Najadochelys Hay, 1908 (uncertain, unassessed)
Genus Nanemys Agassiz, 1857 (uncertain, unassessed)
Genus Nanictocephalus Broom, 1940 † (uncertain, unassessed)
Genus Nannosuchus Owen, 1879 † (uncertain, unassessed)
Genus Nanogorgon Broom & Robinson, 1948 † (uncertain, unassessed)
Genus Naocephalus Cope, 1872 † (uncertain, unassessed)
Genus Naosaurus Cope, 1886 † (uncertain, unassessed)
Genus Navajosuchus Mook, 1942 (uncertain, unassessed)
Genus Nectemys Agassiz, 1857 (uncertain, unassessed)
Genus Nectoportheus Cope, 1868 † (uncertain, unassessed)
Genus Neomegacyclops Boonstra, 1953 † (uncertain, unassessed)
Genus Neorotodactylus Casamiquela, 1980 (uncertain, unassessed)
Genus Neosodon Moussaye, 1885 † (uncertain, unassessed)
Genus Neotestudo Hewitt, 1931 (uncertain, unassessed)
Genus Neotriton Bolkay, 1927 (uncertain, unassessed)
Genus Neurodromicus Cope, 1873 † (uncertain, unassessed)
Genus Neustosaurus Raspail, 1842 † (uncertain, unassessed)
Genus Newtonella Broom, 1937 † (uncertain, unassessed)
Genus Niphosaurus Evans, 1985 † (uncertain, unassessed)
Genus Nithosaurus Anon., 1838 † (uncertain, unassessed)
Genus Nochelesaurus Haughton, 1929 † (uncertain, unassessed)
Genus Nominosuchus Efimov, 1996 † (uncertain, unassessed)
Genus Notaelurodon Broom, 1936 † (uncertain, unassessed)
Genus Notaelurops Broom, 1936 † (uncertain, unassessed)
Genus Noteosuchus Broom, 1925 † (uncertain, unassessed)
Genus Nothosaurus Fitzinger, 1843 † (uncertain, unassessed)
Genus Notictosaurus Broom, 1936 † (uncertain, unassessed)
Genus Notiosaurus Owen, 1884 † (uncertain, unassessed)
Genus Notoa Gray, 1863 (uncertain, unassessed)
Genus Notocaiman Rusconi, 1937 † (uncertain, unassessed)
Genus Notomorpha Cope, 1872 † (uncertain, unassessed)
Genus Notophis Hallowell, 1856 (uncertain, unassessed)
Genus Notosaurus Marsh, 1877 † (uncertain, unassessed)
Genus Notosollasia Broom, 1925 † (uncertain, unassessed)
Genus Notosuchus Woodward, 1896 † (uncertain, unassessed)
Genus Nyctodactylus Marsh, 1881 (uncertain, unassessed)
Genus Nympha Fitzinger, 1826 (uncertain, unassessed)
Genus Nymphophidium Günther, 1864 (uncertain, unassessed)
Genus Octagomphus Broom, 1919 † (uncertain, unassessed)
Genus Octipos Rafinesque, 1817 (uncertain, unassessed)
Genus Octocynodon Broom, 1940 † (uncertain, unassessed)
Genus Ocyophis Cope, 1886 (uncertain, unassessed)
Genus Odontochelone Stefano, 1902 † (uncertain, unassessed)
Genus Odontomophis Rochebrune, 1884 (uncertain, unassessed)
Genus Oligolycus Fritsch, 1894 (uncertain, unassessed)
Genus Oligosaurus Seeley, 1881 † (uncertain, unassessed)
Genus Oligostinus Hawkins, 1840 (uncertain, unassessed)
Genus Oligotropis Duméril, 1853 (uncertain, unassessed)
Genus Ollochirus Cope, 1892 (uncertain, unassessed)
Genus Omosaurus Leidy, 1857 † (uncertain, unassessed)
Genus Oneyda Gray, 1845 (uncertain, unassessed)
Genus Onychichnium Dozy, 1935 † (uncertain, unassessed)
Genus Onychopus Fitzinger, 1843 (uncertain, unassessed)
Genus Onychopus Lilienstern, 1939 † (uncertain, unassessed)
Genus Onychosaurus Nopcsa, 1902 † (uncertain, unassessed)
Genus Onychotria Gray, 1849 (uncertain, unassessed)
Genus Onycopus Duméril & Bibron, 1841 (uncertain, unassessed)
Genus Opeosaurus Meyer, 1847-55 † (uncertain, unassessed)
Genus Ophichelone Jarocki, 1822 (uncertain, unassessed)
Genus Ophidiolithus Bronn in Ersch & Gruber, 1833 (uncertain, unassessed)
Genus Ophidion Pomel, 1853 † (uncertain, unassessed)
Genus Ophimorphites Bronn in Ersch & Gruber, 1833 (uncertain, unassessed)
Genus Ophinectes Rafinesque, 1817 (uncertain, unassessed)
Genus Ophiodeirus Broom, 1914 † (uncertain, unassessed)
Genus Ophiolites Bronn in Ersch & Gruber, 1833 † (uncertain, unassessed)
Genus Ophiolithus Bronn in Ersch & Gruber, 1833 (uncertain, unassessed)
Genus Ophiomorphites Bronn in Ersch & Gruber, 1833 (uncertain, unassessed)
Genus Ophirhina Barboza de Bocage, 1882 (uncertain, unassessed)
Genus Ophryocentron Fitzinger, 1843 (uncertain, unassessed)
Genus Ophthalmophis Fitzinger, 1843 (uncertain, unassessed)
Genus Opisthoctenodon Broom, 1904 † (uncertain, unassessed)
Genus Opisthopus Heyler & Lessertisseur, 1963 † (uncertain, unassessed)
Genus Orchesteropus Frenguelli, 1950 † (uncertain, unassessed)
Genus Ornatiovum Vialov, 1986 † (uncertain, unassessed)
Genus Ornitheocephalus Fitzinger, 1826 (uncertain, unassessed)
Genus Ornithichnidium Kuhn, 1958 † (uncertain, unassessed)
Genus Ornithichnites Portis, 1859 † (uncertain, unassessed)
Genus Ornithichnites Hitchcock, 1836 † (uncertain, unassessed)
Genus Ornithoidipus Sternberg, 1933 † (uncertain, unassessed)
Genus Ornithomerus Seeley, 1881 † (uncertain, unassessed)
Genus Ornithopterus Meyer, 1838 (uncertain, unassessed)
Genus Ornithopus Hitchcock, 1848 (uncertain, unassessed)
Genus Orophis Fitzinger, 1843 (uncertain, unassessed)
Genus Orosaurus Huxley, 1867 † (uncertain, unassessed)
Genus Orthopus Kutorga, 1838 (uncertain, unassessed)
Genus Orthosaurus Geoffroy St Hilaire, 1835 (uncertain, unassessed)
Genus Osceola Baird & Girard, 1853 (uncertain, unassessed)
Genus Osmolskina Borsuk-Bialynicka & Evans, 2003 † (uncertain, unassessed)
Genus Oterognathus Dollo, 1889 † (uncertain, unassessed)
Genus Otolepis Strauch, 1866 (uncertain, unassessed)
Genus Oxysdonsaurus Ambrosetti, 1890 † (uncertain, unassessed)
Genus Oxytropis Fitzinger, 1843 (uncertain, unassessed)
Genus Pachycheilosuchus Rogers, 2003 † (uncertain, unassessed)
Genus Pachygonosaurus von Huene, 1916 † (uncertain, unassessed)
Genus Pachylobronchus Wagler, 1833 (uncertain, unassessed)
Genus Pachyophis Nopcsa, 1923 † (uncertain, unassessed)
Genus Pachypleura Cornalia, 1854 (uncertain, unassessed)
Genus Pachyramphus Fitzinger, 1843 (uncertain, unassessed)
Genus Pachyrhinos Broili & Schroeder, 1934 † (uncertain, unassessed)
Genus Pachysaurichnium Demathieu & Weidmann, 1982 † (uncertain, unassessed)
Genus Pachysaurus Fitzinger, 1843 (uncertain, unassessed)
Genus Pachyspondylus Owen, 1859 (uncertain, unassessed)
Genus Pachystropheus von Huene, 1935 † (uncertain, unassessed)
Genus Pachyurus Philippi, 1899 (uncertain, unassessed)
Genus Palaeagama Broom, 1926 † (uncertain, unassessed)
Genus Palaelaphis Rochebrune, 1886 † (uncertain, unassessed)
Genus Palaeochameleo Weigelt, 1930 † (uncertain, unassessed)
Genus Palaeochelys Meyer, 1847 † (uncertain, unassessed)
Genus Palaeochelys Valenciennes, 1863 † (uncertain, unassessed)
Genus Palaeoctonus Cope, 1877 † (uncertain, unassessed)
Genus Palaeoelaphe Gilmore, 1938 † (uncertain, unassessed)
Genus Palaeohatteria Credner, 1888 † (uncertain, unassessed)
Genus Palaeomedusa Meyer, 1860 † (uncertain, unassessed)
Genus Palaeosaurus Fitzinger, 1843 † (uncertain, unassessed)
Genus Palaeovaranus Filhol, 1877 † (uncertain, unassessed)
Genus Palemys Gray, 1870 (uncertain, unassessed)
Genus Paleoboa Schmidt, 1927 † (uncertain, unassessed)
Genus Paleotrionyx Schmidt, 1945 † (uncertain, unassessed)
Genus Paliguana Broom, 1903 † (uncertain, unassessed)
Genus Paloesaurus Geoffroy, 1833 (uncertain, unassessed)
Genus Pampestudo Lindholm, 1929 (uncertain, unassessed)
Genus Pantelosaurus von Huene, 1925 † (uncertain, unassessed)
Genus Paracaptorhinus Watson, 1954 † (uncertain, unassessed)
Genus Parachelys Meyer, 1864 (uncertain, unassessed)
Genus Paracrotalus Reuss, 1930 (uncertain, unassessed)
Genus Paracynosuchus Broom, 1940 † (uncertain, unassessed)
Genus Paradapedon von Huene, 1942 † (uncertain, unassessed)
Genus Paradendroolithus Zhou, Ren, Xu & Guan, 1998 † (uncertain, unassessed)
Genus Parageophis Duméril & Bocourt, 1883 (uncertain, unassessed)
Genus Paraglyphanodon Gilmore, 1940 † (uncertain, unassessed)
Genus Paramecostinus Hawkins, 1840 (uncertain, unassessed)
Genus Paramphibius Willard, 1935 † (uncertain, unassessed)
Genus Paraphrynonax Lutz & Mello, 1920 (uncertain, unassessed)
Genus Paraprionosaurius Gilmore, 1938 † (uncertain, unassessed)
Genus Paratetrasauropus Ellenberger, 1972 † (uncertain, unassessed)
Genus Paratrisauropus Ellenberger, 1972 † (uncertain, unassessed)
Genus Pardocephalus Broom, 1948 † (uncertain, unassessed)
Genus Pardosuchus Broom, 1908 † (uncertain, unassessed)
Genus Pareiasuchus Broom & Haughton, 1913 † (uncertain, unassessed)
Genus Pariemys Cope, 1895 (uncertain, unassessed)
Genus Pariocela Fitzinger, 1843 (uncertain, unassessed)
Genus Pariopeltis Fitzinger, 1843 (uncertain, unassessed)
Genus Parringtonia von Huene, 1939 † (uncertain, unassessed)
Genus Parringtoniella Toerien, 1953 † (uncertain, unassessed)
Genus Parrishia Long & Murry, 1995 † (uncertain, unassessed)
Genus Pataeosaurus Fitzinger, 1843 (uncertain, unassessed)
Genus Patricosaurus Seeley, 1887 † (uncertain, unassessed)
Genus Pattsia Lees & Mills, 1983 † (uncertain, unassessed)
Genus Pectenosaurus von Huene, 1902 † (uncertain, unassessed)
Genus Pedeticosaurus van Hoepen, 1915 † (uncertain, unassessed)
Genus Pediophis Fitzinger, 1843 (uncertain, unassessed)
Genus Pediophylax Fitzinger, 1843 (uncertain, unassessed)
Genus Pelamydoidis Fitzinger, 1861 (uncertain, unassessed)
Genus Pelictosuchus Broom, 1940 † (uncertain, unassessed)
Genus Pelobatochelys Seeley, 1875 † (uncertain, unassessed)
Genus Pelodiscus Fitzinger, 1835 (uncertain, unassessed)
Genus Pelophis Fitzinger, 1843 (uncertain, unassessed)
Genus Pelosuchus Broom, 1905 † (uncertain, unassessed)
Genus Peltochelys Dollo, 1884 (uncertain, unassessed)
Genus Pentatarsostinus Hawkins, 1840 (uncertain, unassessed)
Genus Pentichnus Biron & Dutuit, 1982 † (uncertain, unassessed)
Genus Periscopus Fitzinger, 1843 (uncertain, unassessed)
Genus Permocynodon Sushkin, 1929 † (uncertain, unassessed)
Genus Perodactylus Fitzinger, 1843 (uncertain, unassessed)
Genus Pessopteryx Wiman, 1910 † (uncertain, unassessed)
Genus Phalangoptyon Wagler, 1833 (uncertain, unassessed)
Genus Phayrea Theobald, 1868 (uncertain, unassessed)
Genus Phenacopus Demathieu & Oosterink, 1983 † (uncertain, unassessed)
Genus Phenascosaurus Barbour, 1920 (uncertain, unassessed)
Genus Phenax Fitzinger, 1843 (uncertain, unassessed)
Genus Pholidolaemus Fitzinger, 1843 (uncertain, unassessed)
Genus Pholidoscelis Fitzinger, 1843 (uncertain, unassessed)
Genus Phoneosuchus Broom, 1929 † (uncertain, unassessed)
Genus Phosphatisaurus Bergounioux, 1955 † (uncertain, unassessed)
Genus Phosphorosaurus Dollo, 1889 † (uncertain, unassessed)
Genus Photophilus Fitzinger, 1843 (uncertain, unassessed)
Genus Phreatosuchus Efremov, 1954 † (uncertain, unassessed)
Genus Phrynosaurus Fitzinger, 1843 (uncertain, unassessed)
Genus Phyllemys Schmidt, 1944 † (uncertain, unassessed)
Genus Phyllodontosuchus Harris, Lucas, Estep & Li, 2000 † (uncertain, unassessed)
Genus Phyllophilophis Garman, 1883 (uncertain, unassessed)
Genus Picrodon Seeley, 1898 † (uncertain, unassessed)
Genus Piesigaster Seoane, 1880 (uncertain, unassessed)
Genus Pinacosuchus Gilmore, 1942 † (uncertain, unassessed)
Genus Piocormus Wagner, 1852 (uncertain, unassessed)
Genus Placosoma Fitzinger, 1847 (uncertain, unassessed)
Genus Placovaranus Fejeváry, 1927 (uncertain, unassessed)
Genus Planodes Fitzinger, 1843 (uncertain, unassessed)
Genus Plastremys Owen in Parkinson, 1881 † (uncertain, unassessed)
Genus Plateosauravus von Huene in Soergel, 1932 † (uncertain, unassessed)
Genus Platycheloides Haughton, 1928 (uncertain, unassessed)
Genus Platycranion Jan, 1863 (uncertain, unassessed)
Genus Platycyclops Broom, 1932 † (uncertain, unassessed)
Genus Platyoropha Haughton, 1929 (uncertain, unassessed)
Genus Platypholis Dugès, 1891 (uncertain, unassessed)
Genus Platypodosaurus Owen, 1880 † (uncertain, unassessed)
Genus Platypterna Hitchcock, 1848 (uncertain, unassessed)
Genus Platyrhachis Cope, 1873 † (uncertain, unassessed)
Genus Plectropus Hitchcock, 1848 (uncertain, unassessed)
Genus Plesiosuchus Owen, 1884 † (uncertain, unassessed)
Genus Plestiodontoides Giglioli, 1874 (uncertain, unassessed)
Genus Pleurodus Gürich, 1885 (uncertain, unassessed)
Genus Pleuropeltus Seeley, 1881 † (uncertain, unassessed)
Genus Pleuropterus Fitzinger, 1843 (uncertain, unassessed)
Genus Plocederma Blyth, 1854 (uncertain, unassessed)
Genus Pneustes Merrem, 1820 (uncertain, unassessed)
Genus Pnigalion Watson, 1914 (uncertain, unassessed)
Genus Podoclonium Cope, 1892 (uncertain, unassessed)
Genus Podorrhoa Fitzinger, 1843 (uncertain, unassessed)
Genus Podurus Fischer, 1813 (uncertain, unassessed)
Genus Poecilospondylus Case, 1910 (uncertain, unassessed)
Genus Polemarchus Hitchcock, 1848 (uncertain, unassessed)
Genus Polydaedalus Wagler, 1830 (uncertain, unassessed)
Genus Polydectes Cope, 1870 † (uncertain, unassessed)
Genus Polyechmatemys Ping, 1930 † (uncertain, unassessed)
Genus Polyodontosaurus Gilmore, 1932 † (uncertain, unassessed)
Genus Polyostinus Hawkins, 1840 (uncertain, unassessed)
Genus Polysphenodon (uncertain, unassessed)
Genus Polystoma Kuhl & Hasselt, 1822 (uncertain, unassessed)
Genus Polythorax Cope, 1877 † (uncertain, unassessed)
Genus Ponerosteus Olshevsky, 2000 † (uncertain, unassessed)
Genus Porituberoolithus Zelenitsky, Hills & Currie, 1996 † (uncertain, unassessed)
Genus Porosteognathus V'iushkov, 1955 † (uncertain, unassessed)
Genus Potamophis Cantor, 1836 (uncertain, unassessed)
Genus Potamophis Fitzinger, 1843 (uncertain, unassessed)
Genus Preprismatoolithus Zelenitsky & Hills, 1996 † (uncertain, unassessed)
Genus Prestosuchus von Huene, 1942 † (uncertain, unassessed)
Genus Pricea Broom, 1948 † (uncertain, unassessed)
Genus Prionosaurus Gilmore, 1928 † (uncertain, unassessed)
Genus Priosphenodon Apesteguía & Novas, 2003 † (uncertain, unassessed)
Genus Prismatoolithus Hirsch, 1994 † (uncertain, unassessed)
Genus Pristerodon Huxley, 1868 † (uncertain, unassessed)
Genus Pristerognathus Seeley, 1895 † (uncertain, unassessed)
Genus Pristerosaurus Boonstra, 1954 † (uncertain, unassessed)
Genus Pristicercus Fitzinger, 1843 (uncertain, unassessed)
Genus Pristiodon Fitzinger, 1843 (uncertain, unassessed)
Genus Proalligator Ambrosetti, 1890 † (uncertain, unassessed)
Genus Proalopecopsis Brink & Kitching, 1951 † (uncertain, unassessed)
Genus Proaulacocephalodon Toerien, 1955 † (uncertain, unassessed)
Genus Procerosaurus Fritsch & Bayer, 1905 † (uncertain, unassessed)
Genus Procerosaurus von Huene, 1902 † (uncertain, unassessed)
Genus Procerosuchus von Huene, 1942 † (uncertain, unassessed)
Genus Prochelone Haeckel, 1895 (uncertain, unassessed)
Genus Prochirotherium Leonardi, 1953 † (uncertain, unassessed)
Genus Prochonias Cope, 1870 † (uncertain, unassessed)
Genus Procolophonipus von Lilienstern, 1939 † (uncertain, unassessed)
Genus Procrocodilus Haeckel, 1895 (uncertain, unassessed)
Genus Proctopus Fischer de Waldheim, 1813 (uncertain, unassessed)
Genus Prodicynodon Broom, 1904 † (uncertain, unassessed)
Genus Prodiplocynodon Mook, 1941 (uncertain, unassessed)
Genus Prodiplus Rafinesque, 1819 (uncertain, unassessed)
Genus Proelginia Hartmann-Weinberg, 1937 † (uncertain, unassessed)
Genus Proganosaurus Portis, 1890 † (uncertain, unassessed)
Genus Proiguana Filhol, 1877 † (uncertain, unassessed)
Genus Prolystrosaurus Haughton, 1917 † (uncertain, unassessed)
Genus Promalacoclemmys Reinach, 1900 (uncertain, unassessed)
Genus Promoschorhynchus Brink, 1954 † (uncertain, unassessed)
Genus Propappus Seeley, 1888 (uncertain, unassessed)
Genus Propodinema Ambrosetti, 1890 † (uncertain, unassessed)
Genus Propseudopus Hilgendorf, 1883 (uncertain, unassessed)
Genus Protagras Cope, 1872 † (uncertain, unassessed)
Genus Protamnion Haeckel, 1895 (uncertain, unassessed)
Genus Proteosaurus Home, 1819 † (uncertain, unassessed)
Genus Protiguanodon Osborn, 1923 † (uncertain, unassessed)
Genus Protocynodon Broom, 1949 † (uncertain, unassessed)
Genus Prototrisauropus Ellenberger, 1972 † (uncertain, unassessed)
Genus Protrachysaurus Stefano, 1903 † (uncertain, unassessed)
Genus Provipera Kinkelin, 1892 (uncertain, unassessed)
Genus Prymnomiodon Cope, 1861 (uncertain, unassessed)
Genus Psammochelys Quenstedt, 1889 (uncertain, unassessed)
Genus Psammoplanis Fitzinger, 1843 (uncertain, unassessed)
Genus Psammorrhoa Fitzinger, 1843 (uncertain, unassessed)
Genus Psammosaurus Zenker, 1833 † (uncertain, unassessed)
Genus Psammoscopus Fitzinger, 1843 (uncertain, unassessed)
Genus Pseudapistocalamus Lönnberg, 1900 (uncertain, unassessed)
Genus Pseudelaps Duméril, 1853 (uncertain, unassessed)
Genus Pseudoameiva Fitzinger, 1820 (uncertain, unassessed)
Genus Pseudoboa Oppel, 1811 (uncertain, unassessed)
Genus Pseudocadia Lindholm, 1931 (uncertain, unassessed)
Genus Pseudochamaeleo Gravenhorst, 1807 (uncertain, unassessed)
Genus Pseudochirotherium Biron & Dutuit, 1982 † (uncertain, unassessed)
Genus Pseudodactylus Fitzinger, 1843 (uncertain, unassessed)
Genus Pseudodipsas Peters, 1860 (uncertain, unassessed)
Genus Pseudoeryx Jan, 1862 (uncertain, unassessed)
Genus Pseudogeckoolithus Vianey-Liaud & Lopez-Martinez, 1997 † (uncertain, unassessed)
Genus Pseudohipposaurus Boonstra, 1952 † (uncertain, unassessed)
Genus Pseudolycodon Peters, 1876 (uncertain, unassessed)
Genus Pseudoprosymna Lindholm in Lampe, 1902 (uncertain, unassessed)
Genus Pseudotrionyx Dollo, 1886 (uncertain, unassessed)
Genus Pseudotrisauropus Ellenberger, 1972 † (uncertain, unassessed)
Genus Pseuduromacer Werner, 1924 (uncertain, unassessed)
Genus Psilosoma Jan, 1862 (uncertain, unassessed)
Genus Psilotrisauropus Ellenberger, 1972 † (uncertain, unassessed)
Genus Ptenodactylus Gray, 1845 (uncertain, unassessed)
Genus Ptenodracon Lydekker, 1888 † (uncertain, unassessed)
Genus Pterodactylus Rafinesque, 1815 † (uncertain, unassessed)
Genus Pteronotus Ranzani, 1839 (uncertain, unassessed)
Genus Pterosaurus Fitzinger, 1843 (uncertain, unassessed)
Genus Pterotherium Fischer, 1813 (uncertain, unassessed)
Genus Pterycollasaurus Dollo, 1882 (uncertain, unassessed)
Genus Ptomalestes Boonstra, 1954 † (uncertain, unassessed)
Genus Ptychocynodon Seeley, 1904 (uncertain, unassessed)
Genus Ptychopleura Fitzinger, 1843 (uncertain, unassessed)
Genus Ptychosiagum Lydekker, 1890 † (uncertain, unassessed)
Genus Ptychosyagum Lydekker in Nicholson & Lydekker, 1889 † (uncertain, unassessed)
Genus Ptyodactylus Oken, 1817 (uncertain, unassessed)
Genus Purranosaurus Rusconi, 1948 † (uncertain, unassessed)
Genus Purussaurus Rodrigues, 1892 † (uncertain, unassessed)
Genus Pygmaeochelys Laube, 1896 (uncertain, unassessed)
Genus Pygodactylus Merrem, 1820 (uncertain, unassessed)
Genus Pygopus Merrem, 1820 (uncertain, unassessed)
Genus Pylmophis Rochebrune, 1880 † (uncertain, unassessed)
Genus Pyrenodon Dujardin, 1843 (uncertain, unassessed)
Genus Pythomorphus Fitzinger, 1843 (uncertain, unassessed)
Genus Pythonia Blyth, 1859 (uncertain, unassessed)
Genus Pythoniscus Philippi, 1899 (uncertain, unassessed)
Genus Pyxiclemmys Gray, 1863 (uncertain, unassessed)
Genus Pyxidemys Fitzinger, 1835 (uncertain, unassessed)
Genus Qemetrisauropus Ellenberger, 1972 † (uncertain, unassessed)
Genus Quadridigitus Biron & Dutuit, 1982 † (uncertain, unassessed)
Genus Quadropedia Aldrich & Jones, 1930 † (uncertain, unassessed)
Genus Rachitrema Sauvage, 1883 † (uncertain, unassessed)
Genus Ramphosaurus Fitzinger, 1843 (uncertain, unassessed)
Genus Rapara Gray, 1825 (uncertain, unassessed)
Genus Rapator von Huene in Soergel, 1932 † (uncertain, unassessed)
Genus Raphiosaurus Owen, 1841 † (uncertain, unassessed)
Genus Rauisuchus von Huene, 1942 † (uncertain, unassessed)
Genus Rectilinetopus Biron & Dutuit, 1982 † (uncertain, unassessed)
Genus Regenia Gray, 1845 (uncertain, unassessed)
Genus Regnosaurus Mantell, 1848 † (uncertain, unassessed)
Genus Rhabdosaurus Bergounioux, 1955 † (uncertain, unassessed)
Genus Rhabdotocephalus Seeley, 1898 (uncertain, unassessed)
Genus Rhacheosaurus Meyer, 1830 † (uncertain, unassessed)
Genus Rhachicephalodon Seeley, 1898 † (uncertain, unassessed)
Genus Rhacodracon Fitzinger, 1843 (uncertain, unassessed)
Genus Rhadinosaurus Seeley, 1881 † (uncertain, unassessed)
Genus Rhadinosuchus von Huene, 1942 † (uncertain, unassessed)
Genus Rhamphognathus Vogt, 1851 (uncertain, unassessed)
Genus Rhamphosaurus Cope, 1872 † (uncertain, unassessed)
Genus Rhaticonia Broili, 1927 † (uncertain, unassessed)
Genus Rhinodipsas Fitzinger, 1843 (uncertain, unassessed)
Genus Rhinopirus Merrem, 1820 (uncertain, unassessed)
Genus Rhinoptyon Fitzinger, 1843 (uncertain, unassessed)
Genus Rhinosaurus Marsh, 1872 † (uncertain, unassessed)
Genus Rhodanosaurus Nopcsa, 1929 † (uncertain, unassessed)
Genus Rhopalodon Fischer de Waldheim, 1841 (uncertain, unassessed)
Genus Rhynchosuchus Huxley, 1859 (uncertain, unassessed)
Genus Rigalites von Huene, 1931 † (uncertain, unassessed)
Genus Rileya von Huene, 1902 † (uncertain, unassessed)
Genus Rotadactylopus Ellenberger, 1972 † (uncertain, unassessed)
Genus Rotodactylus Peabody, 1948 † (uncertain, unassessed)
Genus Rouleophis Chabanaud, 1916 (uncertain, unassessed)
Genus Rugosuchus Wu, Cheng & Russell, 2001 † (uncertain, unassessed)
Genus Rysosteus Owen, 1842 (uncertain, unassessed)
Genus Saara Gray, 1845 (uncertain, unassessed)
Genus Sabrina Girard, 1857 (uncertain, unassessed)
Genus Saccostoma Fitzinger, 1843 (uncertain, unassessed)
Genus Salamandroides Jaeger, 1828 † (uncertain, unassessed)
Genus Saltosauropus Demathieu & Gaillard, 1984 † (uncertain, unassessed)
Genus Sarbieria Gray, 1869 (uncertain, unassessed)
Genus Sarruba Fitzinger, 1826 (uncertain, unassessed)
Genus Satapliasaurus Gabuniya, 1951 † (uncertain, unassessed)
Genus Sauranodon Gervais, 1871 (uncertain, unassessed)
Genus Sauravus Thévenin, 1906 † (uncertain, unassessed)
Genus Saurichnis Harkness, 1851 (uncertain, unassessed)
Genus Sauridis Tschudi, 1845 (uncertain, unassessed)
Genus Saurites Peters, 1869 (uncertain, unassessed)
Genus Saurocainus Aymard † (uncertain, unassessed)
Genus Saurochampsa Wagler, 1830 † (uncertain, unassessed)
Genus Saurochelys Berthold in Latreille, 1827 (uncertain, unassessed)
Genus Saurodesmus Seeley, 1891 † (uncertain, unassessed)
Genus Sauroidichnites Hitchcock, 1841 † (uncertain, unassessed)
Genus Sauromorus Pomel, 1853 † (uncertain, unassessed)
Genus Saurophidium Gervais, 1871 (uncertain, unassessed)
Genus Sauropodopus Ellenberger, 1972 † (uncertain, unassessed)
Genus Saurornithoides Nopcsa, 1928 † (uncertain, unassessed)
Genus Saurospondylus Seeley, 1865 (uncertain, unassessed)
Genus Scalopocephalus von Huene, 1937 † (uncertain, unassessed)
Genus Scapanodon Broom, 1904 † (uncertain, unassessed)
Genus Scaphonychimus von Huene, 1928 † (uncertain, unassessed)
Genus Scapia Gray, 1869 (uncertain, unassessed)
Genus Scaptophis Rochebrune, 1880 (uncertain, unassessed)
Genus Scapyonyx Smith-Woodward, 1908 (uncertain, unassessed)
Genus Scelocnemis Fitzinger, 1843 (uncertain, unassessed)
Genus Scelodromus Fitzinger, 1843 (uncertain, unassessed)
Genus Scelotretus Fitzinger, 1843 (uncertain, unassessed)
Genus Scenodon Merriam, 1905 (uncertain, unassessed)
Genus Scincoides Péron & Lesueur, 1818 (uncertain, unassessed)
Genus Scincosaurus Fric, 1876 (uncertain, unassessed)
Genus Scoliomus Williston & Case, 1915 (uncertain, unassessed)
Genus Scoliophis Lesueur, 1818 (uncertain, unassessed)
Genus Scolosaurus Nopcsa, 1928 † (uncertain, unassessed)
Genus Scullya Broom, 1929 † (uncertain, unassessed)
Genus Scutemys Wiman, 1930 † (uncertain, unassessed)
Genus Scylacocephalus Broom, 1940 † (uncertain, unassessed)
Genus Scylacoides Broom, 1915 † (uncertain, unassessed)
Genus Scylacorhinus Broom, 1915 † (uncertain, unassessed)
Genus Scymnorhinus Broom, 1914 † (uncertain, unassessed)
Genus Scymnosaurus Broom, 1903 † (uncertain, unassessed)
Genus Seakatrisauropus Ellenberger, 1972 † (uncertain, unassessed)
Genus Selenichnus Hitchcock, 1858 † (uncertain, unassessed)
Genus Semibipedopus Haubold, 1971 † (uncertain, unassessed)
Genus Senryuemys Shikama, 1953 † (uncertain, unassessed)
Genus Sericodon Meyer, 1845 (uncertain, unassessed)
Genus Sesamodon Broom, 1905 † (uncertain, unassessed)
Genus Sesamondontoides Broom, 1950 † (uncertain, unassessed)
Genus Sesquipes Cope, 1896 † (uncertain, unassessed)
Genus Seytinia Wagler, 1828 (uncertain, unassessed)
Genus Shokawa Evans & Manabe, 1999 † (uncertain, unassessed)
Genus Sibynon Fitzinger, 1843 (uncertain, unassessed)
Genus Siguana Gray, 1830 (uncertain, unassessed)
Genus Sikannisuchus Nicholls, Brinkman & Wu, 1998 † (uncertain, unassessed)
Genus Silesaurus Dzik, 2003 † (uncertain, unassessed)
Genus Silphedestes Broom, 1949 † (uncertain, unassessed)
Genus Silphedocynodon Brink, 1951 † (uncertain, unassessed)
Genus Silphoictidoides von Huene, 1950 † (uncertain, unassessed)
Genus Silpholestes Broom, 1948 † (uncertain, unassessed)
Genus Simus Bonaparte, 1838 (uncertain, unassessed)
Genus Siniliophis Sauvage, 1880 (uncertain, unassessed)
Genus Sironectes Cope, 1874 † (uncertain, unassessed)
Genus Sironota Agassiz, 1846 (uncertain, unassessed)
Genus Skartopus Thulborn & Wade, 1984 † (uncertain, unassessed)
Genus Smilesaurus Broom, 1948 † (uncertain, unassessed)
Genus Smilodon Plieninger, 1846 (uncertain, unassessed)
Genus Solidopus Moodie, 1930 † (uncertain, unassessed)
Genus Sontiochelys Stache, 1905 † (uncertain, unassessed)
Genus Sphaeropezium King, 1845 (uncertain, unassessed)
Genus Sphaerops Gray, 1845 (uncertain, unassessed)
Genus Sphenophis Fitzinger, 1843 (uncertain, unassessed)
Genus Sphenosaurus Agassiz, 1849 † (uncertain, unassessed)
Genus Sphenospondylus Seeley, 1882 (uncertain, unassessed)
Genus Sphenosuchus Haughton, 1915 † (uncertain, unassessed)
Genus Spheropezopus King, 1845 (uncertain, unassessed)
Genus Spinosuchus von Huene in Soergel, 1932 † (uncertain, unassessed)
Genus Spondylosaurus Fischer de Waldheim, 1845 (uncertain, unassessed)
Genus Spondylurus Fitzinger, 1826 (uncertain, unassessed)
Genus Stahleckeria von Huene, 1935 † (uncertain, unassessed)
Genus Stasiotes Jan, 1862 (uncertain, unassessed)
Genus Stauremys Gray, 1864 (uncertain, unassessed)
Genus Steganoposaurus Branson & Mehl, 1932 † (uncertain, unassessed)
Genus Stegochelys Lydekker, 1889 † (uncertain, unassessed)
Genus Stegomosuchus von Huene, 1922 † (uncertain, unassessed)
Genus Stegonosuchus von Huene, 1938 † (uncertain, unassessed)
Genus Steirophis Fitzinger, 1843 (uncertain, unassessed)
Genus Stelliosaurus Gervais, 1871 (uncertain, unassessed)
Genus Stenodeiros Philippi, 1899 (uncertain, unassessed)
Genus Stenometopon Boulenger, 1903 † (uncertain, unassessed)
Genus Stenorhynchus Hemprich, 1820 (uncertain, unassessed)
Genus Stereocephalus Lambe, 1902 † (uncertain, unassessed)
Genus Stereosaurus Seeley, 1869 † (uncertain, unassessed)
Genus Sterrholophus Marsh, 1891 (uncertain, unassessed)
Genus Storthyggognathus Janensch, 1952 † (uncertain, unassessed)
Genus Strephon Goldfuss, 1820 (uncertain, unassessed)
Genus Streptospondylus Meyer, 1830 † (uncertain, unassessed)
Genus Stromatoolithus Zhao Zikui, Ye Jie, Li Huamei, Zhao Zhenhua & Yan Zheng, 1991 † (uncertain, unassessed)
Genus Stromerosuchus Kuhn, 1936 † (uncertain, unassessed)
Genus Strongylostinus Hawkins, 1840 (uncertain, unassessed)
Genus Struthiocephalellus Boonstra, 1955 † (uncertain, unassessed)
Genus Struthopus Ballerstedt, 1921 † (uncertain, unassessed)
Genus Stypocemus Cope, 1885 † (uncertain, unassessed)
Genus Succinodon von Huene, 1941 † (uncertain, unassessed)
Genus Suchodus Lydekker, 1890 † (uncertain, unassessed)
Genus Suchoprion Cope, 1877 † (uncertain, unassessed)
Genus Syclacops Broom, 1913 † (uncertain, unassessed)
Genus Sycocephalus Brink & Kitching, 1953 † (uncertain, unassessed)
Genus Symphyrophus Cope, 1878 † (uncertain, unassessed)
Genus Synaptichnium Nopcsa † (uncertain, unassessed)
Genus Sysphinctostoma Broili & Schröder, 1936 † (uncertain, unassessed)
Genus Tachybates Fitzinger, 1843 (uncertain, unassessed)
Genus Tachyophis Rochebrune, 1884 (uncertain, unassessed)
Genus Tachyscelis Fitzinger, 1843 (uncertain, unassessed)
Genus Taenieremias Boulenger, 1918 (uncertain, unassessed)
Genus Tamaulipasaurus Clark & Hernandez R., 1994 † (uncertain, unassessed)
Genus Tamboeria Seeley, 1904 (uncertain, unassessed)
Genus Tamnophis Rochebrune, 1880 (uncertain, unassessed)
Genus Tangagorgon Boonstra, 1953 † (uncertain, unassessed)
Genus Tangarosaurus Benham, 1935 † (uncertain, unassessed)
Genus Tanoa Gray, 1863 (uncertain, unassessed)
Genus Tanystus Fischer de Waldheim, 1834 † (uncertain, unassessed)
Genus Taognathus Broom, 1911 † (uncertain, unassessed)
Genus Tapinocephalus Owen, 1876 † (uncertain, unassessed)
Genus Tarjadia Arcucci & Marsicano, 1998 † (uncertain, unassessed)
Genus Tarsoplectrus Lull, 1904 † (uncertain, unassessed)
Genus Taupezia Delair, 1963 † (uncertain, unassessed)
Genus Taurocephalus Broom, 1928 † (uncertain, unassessed)
Genus Taurops Broom, 1912 † (uncertain, unassessed)
Genus Teguixin Gray, 1830 (uncertain, unassessed)
Genus Teilhardosaurus Shikama, 1942 † (uncertain, unassessed)
Genus Teleovipera Reuss, 1927 (uncertain, unassessed)
Genus Telerpeton Mantell, 1852 † (uncertain, unassessed)
Genus Teraterpeton Sues, 2003 † (uncertain, unassessed)
Genus Termatosaurus Plieninger in Meyer & Plieninger, 1844 † (uncertain, unassessed)
Genus Testudinites Weiss, 1830 (uncertain, unassessed)
Genus Tetraceratops Matthew, 1908 † (uncertain, unassessed)
Genus Tetracheilostoma Jan, 1861 (uncertain, unassessed)
Genus Tetralophosaurus Olson, 1937 † (uncertain, unassessed)
Genus Tetraodon Broili & Schröder, 1936 † (uncertain, unassessed)
Genus Tetrapedos Jan, 1860 (uncertain, unassessed)
Genus Tetrapodichnus Haubold, 1971 † (uncertain, unassessed)
Genus Thalassemys Rütimeyer, 1859 (uncertain, unassessed)
Genus Thalassiosaurus Welles, 1943 † (uncertain, unassessed)
Genus Thalassonomosaurus Welles, 1943 † (uncertain, unassessed)
Genus Thalattosuchia Fraas, 1901 (uncertain, unassessed)
Genus Thalestris Gistl, 1868 (uncertain, unassessed)
Genus Thamnobius Fitzinger, 1843 (uncertain, unassessed)
Genus Thamnosophis Jan, 1863 (uncertain, unassessed)
Genus Thaumastosaurus De Stefano, 1904 (uncertain, unassessed)
Genus Thecodontichnus von Huene, 1949 † (uncertain, unassessed)
Genus Theconyx Gray, 1845 (uncertain, unassessed)
Genus Thecospondylus Seeley, 1882 † (uncertain, unassessed)
Genus Thelegnathus Broom, 1905 † (uncertain, unassessed)
Genus Theleus Cope, 1893 (uncertain, unassessed)
Genus Theriodesmus Seeley, 1887 (uncertain, unassessed)
Genus Therioides Boonstra, 1953 † (uncertain, unassessed)
Genus Theromus Seeley, 1894 (uncertain, unassessed)
Genus Theropsis Cabrera, 1943 † (uncertain, unassessed)
Genus Theropsodon von Huene, 1950 † (uncertain, unassessed)
Genus Therosaurus Fitzinger, 1843 (uncertain, unassessed)
Genus Thetia Gray, 1845 (uncertain, unassessed)
Genus Thinosaurus Marsh, 1872 † (uncertain, unassessed)
Genus Tholemys Andrews, 1921 † (uncertain, unassessed)
Genus Thyrosternum Agassiz, 1857 (uncertain, unassessed)
Genus Thyrsidium Cope, 1874 † (uncertain, unassessed)
Genus Tiaporus Cope, 1892 (uncertain, unassessed)
Genus Tichosteus Cope, 1878 † (uncertain, unassessed)
Genus Tigricephalus Broom, 1948 † (uncertain, unassessed)
Genus Tigrisaurus Broom & George, 1950 † (uncertain, unassessed)
Genus Tigrisuchus Owen, 1876 † (uncertain, unassessed)
Genus Tikoepentapodiscus Ellenberger, 1972 † (uncertain, unassessed)
Genus Tisiphone Fitzinger, 1826 (uncertain, unassessed)
Genus Titanognathus Broili & Schroeder, 1935 † (uncertain, unassessed)
Genus Titanophis Marsh, 1877 (uncertain, unassessed)
Genus Tomicosaurus Case, 1907 (uncertain, unassessed)
Genus Toxaspis Cope, 1895 (uncertain, unassessed)
Genus Trachelogerrhon Fitzinger, 1843 (uncertain, unassessed)
Genus Trachelosaurus Broili & Fisher, 1921 † (uncertain, unassessed)
Genus Trachycoelia Fitzinger, 1843 (uncertain, unassessed)
Genus Trachydactyla Gray, 1840 (uncertain, unassessed)
Genus Trachydermochelys Seeley, 1869 † (uncertain, unassessed)
Genus Trachygaster Wagler, 1830 (uncertain, unassessed)
Genus Trachypeltis Fitzinger, 1843 (uncertain, unassessed)
Genus Trachypilus Fitzinger, 1843 (uncertain, unassessed)
Genus Trapeloidis Fitzinger, 1843 (uncertain, unassessed)
Genus Trapelus Cuvier, 1817 (uncertain, unassessed)
Genus Triaenopholis Werner, 1924 (uncertain, unassessed)
Genus Triaenopus Hitchcock, 1848 (uncertain, unassessed)
Genus Tribelesodon Bassani, 1886 (uncertain, unassessed)
Genus Trichasaurus Williston, 1913 † (uncertain, unassessed)
Genus Tricheilostoma Jan, 1861 (uncertain, unassessed)
Genus Trichristolopus Ellenberger, 1972 † (uncertain, unassessed)
Genus Tridactylus Biron & Dutuit, 1982 † (uncertain, unassessed)
Genus Tridentulus Cope, 1892 (uncertain, unassessed)
Genus Trigonophis Eichwald, 1831 (uncertain, unassessed)
Genus Tripeltis Cope, 1886 (uncertain, unassessed)
Genus Trirachodontoides Broom, 1932 † (uncertain, unassessed)
Genus Trisauropodiscus Ellenberger, 1972 † (uncertain, unassessed)
Genus Trisaurus Aldrich & Jones, 1930 † (uncertain, unassessed)
Genus Trispondylus Williston, 1910 † (uncertain, unassessed)
Genus Trissia Gray, 1845 (uncertain, unassessed)
Genus Tritheledon Broom, 1912 † (uncertain, unassessed)
Genus Tritonopsis Gistl, 1868 (uncertain, unassessed)
Genus Trochanterium von Huene, 1902 † (uncertain, unassessed)
Genus Trochorhinus Broom, 1936 † (uncertain, unassessed)
Genus Trochosaurus Haughton, 1915 † (uncertain, unassessed)
Genus Trochosuchus Broom, 1908 † (uncertain, unassessed)
Genus Tropidemys Rütimeyer, 1873 (uncertain, unassessed)
Genus Tropidococcyx Günther, 1860 (uncertain, unassessed)
Genus Tropidodryas Cope, 1885 (uncertain, unassessed)
Genus Tropidogeophis Müller, ? 1878 (uncertain, unassessed)
Genus Tropidogerrhon Fitzinger, 1843 (uncertain, unassessed)
Genus Tropidopeltis Fitzinger, 1843 (uncertain, unassessed)
Genus Tropidophidion Werner, 1902 (uncertain, unassessed)
Genus Tropidopholis Fitzinger, 1843 (uncertain, unassessed)
Genus Tropidophorus Jan, 1865 (uncertain, unassessed)
Genus Tropidopilus Fitzinger, 1843 (uncertain, unassessed)
Genus Tropidosaurus Gray (uncertain, unassessed)
Genus Tropidotragops Fitzinger, 1843 (uncertain, unassessed)
Genus Tropinotus Kuhl & Hasselt, 1822 (uncertain, unassessed)
Genus Tutor Goldfuss, 1820 (uncertain, unassessed)
Genus Tylanthera Cope, 1895 (uncertain, unassessed)
Genus Typhlina Jan, 1864 (uncertain, unassessed)
Genus Typhloblanus Fitzinger, 1843 (uncertain, unassessed)
Genus Typhlomorphus Fitzinger, 1843 (uncertain, unassessed)
Genus Typhlus Koch in Sturm, 1828 (uncertain, unassessed)
Genus Typopus Hitchcock, 1848 (uncertain, unassessed)
Genus Tytleria Theobald, 1868 (uncertain, unassessed)
Genus Tzarevscya Reuss, 1930 (uncertain, unassessed)
Genus Uatchitodon Sues, 1991 † (uncertain, unassessed)
Genus Uintasaurus Holland, 1924 † (uncertain, unassessed)
Genus Ulmosaurus Riabinin & Schtylko, 1932 † (uncertain, unassessed)
Genus Uraeus Wagler, 1830 (uncertain, unassessed)
Genus Uraniskosaurus Nopcsa, 1928 † (uncertain, unassessed)
Genus Uranocentrun Gray, 1845 (uncertain, unassessed)
Genus Uranops Fitzinger, 1843 (uncertain, unassessed)
Genus Urimacerina Amaral, 1929 (uncertain, unassessed)
Genus Urobrachys Fitzinger, 1843 (uncertain, unassessed)
Genus Urocrotalon Fitzinger, 1843 (uncertain, unassessed)
Genus Uroleptes Fitzinger, 1843 (uncertain, unassessed)
Genus Uronyx Rafinesque, 1832 (uncertain, unassessed)
Genus Urosaura Peters, 1870 (uncertain, unassessed)
Genus Vancleavea Long & Murry, 1995 † (uncertain, unassessed)
Genus Varanoops Williston, 1914 † (uncertain, unassessed)
Genus Varanopus Moodie, 1929 (uncertain, unassessed)
Genus Venatoripes Frenguelli, 1950 † (uncertain, unassessed)
Genus Walgettosuchus von Huene in Soergel, 1932 † (uncertain, unassessed)
Genus Walteria Mehl, 1931 (uncertain, unassessed)
Genus Watsoniella Broili & Schroeder, 1935 † (uncertain, unassessed)
Genus Weigeltisaurus Kuhn, 1939 † (uncertain, unassessed)
Genus Weigeltisuchus Kuhn, 1938 (uncertain, unassessed)
Genus Weissia Branco, 1886 † (uncertain, unassessed)
Genus Wincania Gray, 1870 (uncertain, unassessed)
Genus Winfieldia Romer, 1925 † (uncertain, unassessed)
Genus Wintonopus Thulborn & Wade, 1984 † (uncertain, unassessed)
Genus Woodbinesuchus Lee, 1997 † (uncertain, unassessed)
Genus Xenosuchus Rusconi, 1933 (uncertain, unassessed)
Genus Xestorrhytias Meyer, 1842 (uncertain, unassessed)
Genus Xestosaurus Peters, 1862 (uncertain, unassessed)
Genus Xiangxipus Zeng, 1982 † (uncertain, unassessed)
Genus Xiphopeza Hitchcock, 1848 (uncertain, unassessed)
Genus Xiphorhina Fitzinger, 1843 (uncertain, unassessed)
Genus Xiphorhynchus Wagler, 1830 (uncertain, unassessed)
Genus Xiphura Gray, 1830 (uncertain, unassessed)
Genus Xystrolepis Tschudi, 1846 (uncertain, unassessed)
Genus Yaleosaurus von Huene in Soergel, 1932 † (uncertain, unassessed)
Genus Yangtzepus Young, 1960 † (uncertain, unassessed)
Genus Yonghesuchus Wu, Liu & Li, 2002 † (uncertain, unassessed)
Genus Youngopsis Broom, 1937 † (uncertain, unassessed)
Genus Yumenemys Bohlin, 1953 † (uncertain, unassessed)
Genus Yunnanosaurus Young, 1942 † (uncertain, unassessed)
Genus Zablepsis Cope, 1895 (uncertain, unassessed)
Genus Zacholomorphus Fitzinger, 1861 (uncertain, unassessed)
Genus Zanclodon Plieninger, 1846 (uncertain, unassessed)
Genus Zapsalis Cope, 1877 † (uncertain, unassessed)
Genus Zatomus Cope, 1871 † (uncertain, unassessed)
Genus Zosuchus Pol & Norell, 2004 † (uncertain, unassessed)
Genus Zygoramma Cope, 1870 † (uncertain, unassessed)
recent + fossil
Not documented
IRMNG (2018). Reptilia (awaiting allocation). Accessed at: http://www.irmng.org/aphia.php?p=taxdetails&id=100138 on 2019-09-19
Date
action
by
2006-10-16 22:00:00Z
created
2011-12-31 23:00:00Z
changed

basis of record Museum Victoria KEmu database (Oct 2006) [details]   

extant flag source web search (AJR) [details]   
From other sources
Classification Eukaryota (Superkingdom) > Animalia (Kingdom) > Eumetazoa (Subkingdom) > Chordata (Phylum) > Vertebrata (Subphylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family) [details]