Classification of Hirayama and Chitoku 1996
Superfm. Chelonioidea Baur 1893 [sea turtle]
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Fm. Dermochelyidae Lydekker 1889 [leatherback]
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G. †Mesodermochelys Hirayama and Chitoku 1996
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†Mesodermochelys undulatus Hirayama and Chitoku 1996