Classification of Serratos et al. 2017
Unr. Diapsida Osborn 1903 [diapsid]
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Unr. †Sauropterygia Owen 1859
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Unr. †Plesiosauria de Blainville 1835 [plesiosaur]
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Invalid names: Xenopsaria Benson and Druckenmiller 2014 [empty]