Classification of Joyce and Bourque 2016
†Baptemys wyomingensis Leidy 1870
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Invalid names: Baena ponderosa Cope 1873 [synonym], Baptemys fluviatilis Hay 1908 [synonym]
Unr. Chelydroidea Baur 1893
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Unr. †Pankinosternoidea Joyce et al. 2004
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Unr. Kinosternoidea Hay 1892 [mud turtle]
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Fm. Kinosternidae Hay 1892
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G. †Baltemys Hutchison 1991
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†Baltemys staurogastros Hutchison 1991
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Invalid names: Baltemys velogastros Lichtig and Lucas 2015 [synonym]
Unr. Kinosterninae Baur 1893
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G. Kinosternon von Spix 1824 [mud turtle]
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†Kinosternon arizonense Gilmore 1922 [Arizona mud turtle]
†Kinosternon notolophus Bourque 2015
†Kinosternon pannekollops Bourque 2015
†Kinosternon pojoaque Bourque 2012
†Kinosternon rincon Bourque 2015
†Kinosternon skullridgescens Bourque 2012
†Kinosternon wakeeniense Bourque 2015
G. Sternotherus Gray 1825 [musk turtle]
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†Sternotherus bonevalleyensis Bourque and Schubert 2015
†Sternotherus palaeodorus Bourque and Schubert 2015
G. †Xenochelys Hay 1906
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†Xenochelys bridgerensis Hutchison 1991
†Xenochelys floridensis Bourque 2013
†Xenochelys formosa Hay 1906
†Xenochelys lostcabinensis Hutchison 1991
Unr. †Pandermatemys Joyce et al. 2004
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G. †Agomphus Cope 1871
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†Agomphus alabamensis Gilmore 1919
†Agomphus oxysternum Cope 1877
†Agomphus pectoralis Cope 1870
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Invalid names: Adocus petrosus Cope 1868 [synonym], Agomphus masculinus Wieland 1905 [synonym], Agomphus tardus Wieland 1905 [synonym], Emys turgidus Cope 1870 [synonym]
G. †Baptemys Leidy 1870
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†Baptemys garmanii Cope 1872
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Invalid names: Baptemys tricarinata Hay 1908 [synonym], Dermatemys costilata Cope 1875 [synonym]
†Baptemys nanus Bourque et al. 2015
Invalid names: Gomphochelys Bourque et al. 2015 [synonym], Notomorpha Cope 1872 [synonym], Notomorpha gravis Cope 1872 [nomen dubium]
Fm. Dermatemydidae Baur 1888
G. †Hoplochelys Hay 1908
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†Hoplochelys clark Knauss et al. 2011
†Hoplochelys crassa Cope 1888
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Invalid names: Hoplochelys bicarinata Hay 1910 [synonym], Hoplochelys elongata Gilmore 1919 [synonym], Hoplochelys laqueata Gilmore 1919 [synonym], Hoplochelys paludosa Hay 1908 [synonym], Hoplochelys saliens Hay 1908 [synonym]
G. †Planetochelys Weems 1988
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†Planetochelys dithyros Hutchison 2013
†Planetochelys savoiei Weems 1988