Classification of Roxo 1937
Cl. Reptilia Laurenti 1768 [reptile]
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Subcl. Anapsida Williston 1917 [anapsid]
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Superor. Cotylosauria Cope 1880
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Or. †Procolophonia Seeley 1888
Or. †Seymouria Watson 1917
Invalid names: Diadectosauria Case 1911 [empty], Labidosauria Williston [empty], Limnoscelia [empty], Pantylosauria Case 1911 [empty]
Superor. †Eunotosauria Watson 1917
Superor. Testudinata Oppel 1811 [turtle]
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Or. Thecophora Dollo
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Subor. †Amphichelydia Lydekker 1889
Subor. Cryptodira Cope 1868
Subor. Pleurodira Cope 1865 [sideneck turtle]
Subor. Trionychoidea Fitzinger 1826
Invalid names: Athecae Cope 1871 [empty]
Invalid names: Prosauria Gadow 1898 [empty]
Subcl. Diapsida Osborn 1903 [diapsid]
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Or. Archosauria Cope 1869 [archosaur]
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Or. Crocodilia Owen 1842 [crocodilian]
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Subor. Eusuchia Huxley 1875
Subor. †Mesosuchia Huxley 1875
Subor. †Protosuchia Mook 1934
Subor. †Thalattosuchia Fraas 1901 [marine crocodile]
Or. †Ornithischia Seeley 1888 [ornithischian]
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Subor. †Ceratopsia Marsh 1890 [ceratopsian]
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Fm. †Ceratopsidae Marsh 1888 [ceratopsid]
Fm. †Protoceratopsidae Granger and Gregory 1923
Subor. †Ornithopoda Marsh 1881 [ornithopod]
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Fm. †Hypsilophodontidae Dollo 1882 [hypsilophodontid]
Fm. †Iguanodontidae Bonaparte 1850 [iguanodontid]
Fm. †Poposauridae Nopcsa 1923
Fm. †Psittacosauridae Osborn 1923
Fm. †Trachodontidae Lydekker 1888
Fm. †Troodontidae Gilmore 1924
Invalid names: Nanosauridae Marsh 1878 [empty]
Subor. †Stegosauria Marsh 1877
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Fm. †Acanthopholidae Nopcsa 1902
Fm. †Nodosauridae Marsh 1890
Fm. †Stegosauridae Marsh 1880
Invalid names: Orthopoda Cope 1866 [synonym], Predentata Marsh 1894 [synonym]
Or. †Parasuchia Huxley [phytosaur]
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Subor. †Phytosauria Jaeger 1828
Subor. †Pseudosuchia Zittel 1890
Invalid names: Pelycosimia Huene 1911 [empty]
Or. †Pterosauria Kaup 1834 [pterosaur]
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Subor. †Rhamphorhynchoidea Plieninger 1901
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Fm. †Ornithocheiridae Seeley 1870
Fm. †Rhamphorhynchidae Seeley 1870
Invalid names: Ornithostomatidae Williston 1893 [empty]
Invalid names: Scaphognathoidea Hooley 1913 [empty]
Or. Saurischia Seeley 1888 [saurischian]
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Subor. †Sauropoda Marsh 1878 [sauropod]
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Fm. †Atlantosauridae Marsh 1877 [atlantosaurid]
Fm. †Brachiosauridae Riggs 1904 [brachiosaurid]
Fm. †Cetiosauridae Lydekker 1888 [cetiosaurid]
Fm. †Diplodocidae Marsh 1884 [diplodocid]
Fm. †Titanosauridae Lydekker 1885 [titanosaurid]
Invalid names: Morosauridae Marsh 1882 [empty]
Subor. Theropoda Marsh 1881 [theropod]
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Infraor. †Carnosauria Huene 1920 [carnosaur]
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Fm. †Anchisauridae Marsh 1885 [anchisaurid]
Fm. †Megalosauridae Fitzinger 1843
Fm. †Plateosauridae Marsh 1895 [plateosaurid]
Fm. †Spinosauridae Stromer 1915
Invalid names: Zanclodontidae Marsh 1882 [empty]
Infraor. Coelurosauria Huene 1914 [coelurosaur]
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Fm. †Caeluridae Marsh 1881 [coelurid]
Fm. †Compsognathidae Cope 1871 [compsognathid]
Fm. †Hallopodidae Marsh 1881 [hallopodid]
Fm. †Ornithomimidae Marsh 1890 [ornithomimid]
Fm. †Podokesauridae Huene 1914
Invalid names: Deinodontia Flower 1929 [empty]
Invalid names: Diaptosauria Osborn 1903 [empty], Prodiapsida [empty]
Subcl. Synapsida Osborn 1903 [synapsid]
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Superor. Therapsida Broom 1905 [therapsid]
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Or. Cynodontia Owen 1861 [cynodont]
Or. †Dinocephalia Seeley 1894
Or. †Dromasauria Broom 1907
Or. Theriodontia Owen 1876
Superor. †Theromorpha Cope 1878
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Unr. †Caseasauria Williston 1912
Or. †Edaphosauria Cope 1882
Or. †Pelycosauria Cope 1878 [pelycosaur]
Invalid names: Poliosauria Williston 1917 [empty]
Invalid names: Parapsida Williston 1917 [empty], Synaptosauria Williston 1925 [empty]