Classification of Colbert 1946

G. †Owenetta Broom 1939
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Owenetta rubidgei Broom 1939
Or. Cotylosauria Cope 1880
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Subor. †Diadectomorpha Watson 1917
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Fm. †Procolophonidae Lydekker 1889
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Subfm. †Nyctiphruretinae Efremov 1938
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G. †Nycteroleter Efremov 1938
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Nycteroleter ineptus Efremov 1938
G. †Nyctiphruretus Efremov 1938
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Nyctiphruretus acudens Efremov 1938
Subfm. †Procolophoninae Nopcsa 1928
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G. †Anomoiodon Huene 1939
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G. †Hypsognathus Gilmore 1928
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Hypsognathus fenneri Gilmore 1928
G. †Koiloskiosaurus Huene 1911
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G. †Leptopleuron Owen 1851
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Invalid names: Telerpeton elginese Mantell 1852 [objective synonym]
Invalid names: Telerpeton Mantell 1852 [objective synonym]
G. †Myocephalus Broom 1936
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Myocephalus crassidens Broom 1936
G. †Procolophon Owen 1876
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Procolophon baini Broom 1905
G. †Sclerosaurus von Meyer 1857
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Sclerosaurus armatus von Meyer 1857
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Invalid names: Labyrinthodon ruetimeyeri Wiedersheim 1878 [synonym]
Invalid names: Aristodesmus Seeley 1895 [synonym]
G. †Spondylolestes Broom 1937
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G. †Thelegnathus Broom 1905
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Thelegnathus browni Broom 1905
Invalid names: Microtheledon Broom 1936 [nomen dubium], Thelegnathus parvus Broom 1905 [nomen dubium]