Classification of Rieppel 1989

Subcl. Eureptilia Olson 1947 [eureptile]
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Unr. Diapsida Osborn 1903 [diapsid]
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Unr. Neodiapsida Benton 1985
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Unr. †Euryapsida Colbert 1945
Unr. †Sauropterygia Owen 1859
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Superfm. †Pachypleurosauroidea Huene 1956
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Fm. †Pachypleurosauridae Nopcsa 1928
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G. †Serpianosaurus Rieppel 1989
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