Classification of Sullivan et al. 2012

Fm. Trionychidae Gray 1825 [softshell turtle]
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G. †Aspideretoides Gardner et al. 1995
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Invalid names: Aspideretes fontanus Hay 1908 [synonym], Aspideretes vorax Hay 1908 [synonym]
†Aspideretoides robustus Gilmore 1919
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Invalid names: Aspideretes ovatus Gilmore 1935 [synonym]
Unr. †Plastomeninae Hay 1902
Fm. †Adocidae Cope 1869
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G. †Adocus Cope 1868
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†Adocus bossi Gilmore 1919
†Adocus kirtlandius Gilmore 1919
Unr. Eucryptodira Gaffney 1975
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Unr. Kinosternoidea Hay 1892 [mud turtle]
Fm. †Nanhsiungchelyidae Yeh 1966
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G. †Basilemys Hay 1902
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†Basilemys gaffneyi Sullivan et al. 2012
Invalid names: Basilemys nobilis Hay 1911 [nomen dubium]
Unr. Cryptodira Cope 1868
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Unr. †Paracryptodira Gaffney 1975
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Fm. †Baenidae Cope 1882
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Unr. †Baenodda Gaffney and Meylan 1988
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G. †Boremys Lambe 1906
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†Boremys grandis Gilmore 1935
G. †Denazinemys Lucas and Sullivan 2006
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†Denazinemys nodosa Gilmore 1916
G. †Scabremys Sullivan et al. 2012
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†Scabremys ornata Gilmore 1935
G. †Neurankylus Lambe 1902
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†Neurankylus baueri Gilmore 1916
†Neurankylus eximius Lambe 1902
G. †Thescelus Hay 1908
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†Thescelus hemispherica Gilmore 1935
†Thescelus rapiens Hay 1908
Fm. †Pleurosternidae Cope 1868
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G. †Compsemys Leidy 1856
Unr. Pleurodira Cope 1865 [sideneck turtle]
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Fm. †Bothremydidae Baur 1891
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G. †Chedighaii Gaffney et al. 2006
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†Chedighaii hutchisoni Gaffney et al. 2006