BOTHREMYDIDAE —
†Chedighaii barberii
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CHELONIIDAE — Sea Turtles
†Ctenochelys bauri
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†Ctenochelys procax
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†Ctenochelys stenoporus
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†DESMATOCHELYIDAE —
†Desmatochelys lowi
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EMYDIDAE — Box and Basking Turtles
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PANCHELONIIDAE —
†Lophochelys natatrix
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†Lophochelys niobrarae
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PROTOSTEGIDAE —
†Chelosphargis advena
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†Microstega copei
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†Protostega advena
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†Protostega copei
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†Protostega gigas
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†Protostega latiremis
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TESTUDINIDAE — Tortoises
Meade Tortoise
†Geochelone equicomes
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†Geochelone johnstoni
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†Geochelone orthopygia
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†Geochelone rexroadensis
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†Geochelone riggsi
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†Gopherus cyclopyga
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†Gopherus pertenius
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†Hesperotestudo gilberti
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†Hesperotestudo orthopygia
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†Hesperotestudo riggsi
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B
†Testudo equicomes
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†Testudo nebrascensis
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†Testudo orthopygia
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Rigg's Tortoise
†Testudo riggsi
Hibbard 1944
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†Testudo turgida
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TOXOCHELYIDAE —
†Ctenochelys stenopora
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†Lophochelys niobrarae
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†Porthochelys galeotergum
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†Porthochelys laticeps
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†Porthochelys matutina
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†Toxochelys bauri
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†Toxochelys brachyaenus
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†Toxochelys brachyrhinus
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†Toxochelys browni
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Mudge's Toxochelys
†Toxochelys latiremis
Cope 1873
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†Toxochelys procax
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