Classification of Laurin 1991
Subor. Eosuchia Broom 1914
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Unr. Diapsida Osborn 1903 [diapsid]
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Unr. †Araeoscelidia Williston 1913
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Fm. †Araeoscelidae Williston 1910
Fm. †Petrolacosauridae Peabody 1952
Unr. Eosuchia Broom 1914
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G. †Coelurosauravus Piveteau 1926
Unr. Neodiapsida Benton 1985
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Unr. Archosauromorpha Huene 1946 [archosauromorph]
Unr. Lepidosauromorpha Benton 1983
Unr. †Younginiformes Romer 1933