Classification of Hay 1905

Fm. †Toxochelyidae Baur 1895
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G. †Cynocercus Cope 1872
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Cynocercus incisivus Cope 1872
G. †Porthochelys Williston 1901
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Porthochelys browni Hay 1905
Porthochelys laticeps Williston 1901
G. †Toxochelys Cope 1873
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Toxochelys latiremis Cope 1873
Toxochelys procax Hay 1905
Toxochelys serrifer Cope 1875