Classification of Heaton 1979

Cl. Reptilia Laurenti 1768 [reptile]
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Subcl. Anapsida Williston 1917 [anapsid]
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Or. Cotylosauria Cope 1880
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Subor. †Captorhinomorpha Watson 1917
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Fm. †Captorhinidae Case 1911
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G. †Eocaptorhinus Heaton 1979
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†Eocaptorhinus laticeps Williston 1909
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Invalid names: Labidosaurus oklahomensis Seltin 1959 [synonym]
G. †Romeria Price 1937
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†Romeria prima Clark and Carroll 1973
Invalid names: Ectocynodon ordinatus Cope 1878 [nomen oblitum]
G. †Captorhinus Cope 1896
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Invalid names: Ectocynodon Cope 1878 [invalid subgroup], Paracaptorhinus Watson 1954 [synonym]
†Captorhinus aguti Cope 1882
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Invalid names: Paracaptorhinus neglectus Watson 1954 [synonym]