Classification of Olson and Barghusen 1962

Cl. Amphibia Linnaeus 1758
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Or. †Microsauria Dawson 1863
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Fm. †Gymnarthridae Case 1910
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G. †Cymatorhiza Olson and Barghusen 1962
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†Cymatorhiza kittsi Olson and Barghusen 1962
Cl. Reptilia Laurenti 1768 [reptile]
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Subcl. Eureptilia Olson 1947 [eureptile]
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Invalid names: Captorhina Olson 1947 [empty]
Or. †Pelycosauria Cope 1878 [pelycosaur]
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Fm. †Caseidae Williston 1911
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G. †Angelosaurus Olson and Beerbower 1953
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†Angelosaurus romeri Olson and Barghusen 1962
G. †Cotylorhynchus Stovall 1937
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†Cotylorhynchus bransoni Olson and Barghusen 1962