Classification of Colbert 1946
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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Subfm. †Procolophoninae Nopcsa 1928
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G. †Leptopleuron Owen 1851
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†Leptopleuron lacertinum Owen 1851
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Invalid names: Telerpeton elginese Mantell 1852 [objective synonym]
Invalid names: Telerpeton Mantell 1852 [objective synonym]
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]
Invalid names: Microtheledon Broom 1936 [nomen dubium], Thelegnathus parvus Broom 1905 [nomen dubium]