Classification of the superfamily Trionychoidea
Superfm. Trionychoidea Fitzinger 1826
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Fm. †Adocidae Cope 1869
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G. †Adocoides Sukhanov and Narmandakh 2006
G. †Adocus Cope 1868
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†Adocus agilis Cope 1868
†Adocus aksary Nessov and Krasovskaya 1984
†Adocus amtgai Narmandakh 1985
†Adocus beatus Leidy 1865
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Invalid names: Adocus lacer Hay 1908 [synonym], Adocus punctatus Marsh 1890 [synonym]
†Adocus bossi Gilmore 1919
†Adocus bostobensis Syromyatnikova and Danilov 2009
†Adocus dzhurtasensis Syromyatnikova and Danilov 2009
†Adocus firmus Leidy 1856
†Adocus foveatus Nesov and Khozarskii 1977
†Adocus hesperius Gilmore 1919
†Adocus inexpectatus Danilov et al. 2013
†Adocus kazachstanica Chkhikvadze 1973
†Adocus kirtlandius Gilmore 1919
†Adocus kizylkumensis Nesov 1981
†Adocus kokaku Hirayama et al. 2021
†Adocus lineolatus Cope 1874
†Adocus microglypha Cope 1871
†Adocus onerosus Gilmore 1919
†Adocus orientalis Gilmore 1931
†Adocus planus Sukhanov and Narmandakh 2006
†Adocus pravus Leidy 1856
†Adocus sengokuensis Sonoda et al. 2015
†Adocus striatula Cope 1869
†Adocus syntheticus Cope 1869
†Adocus vigoratus Hay 1910
Invalid names: Alamosemys Hay 1908 [synonym], Homorophus Cope 1869 [synonym], Shineusemys Sukhanov and Narmandakh 2006 [synonym], Zygoramma Cope 1869 [synonym]
G. †Ferganemys Nessov and Yulinen 1977
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†Ferganemys itemirensis Nesov 1981
†Ferganemys verzilini Nesov and Khozatskii 1977
Subfm. †Shachemydinae Khosatzky 1977
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Invalid names: Mlynarskiella Shuvalov and Chkhikvadze 1986 [nomen dubium], Mlynarskiella mariani Shuvalov and Ckhikvadze 1986 [nomen dubium]
G. †Shachemys Kuznetsov 1976
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†Shachemys ancestralis Nessov 1984
†Shachemys baibolatica Kuznetsov 1976
†Shachemys laosiana de Lapparent de Broin 2004
G. †Shineusemys Sukhanov and Narmandakh 2006
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†Sineusemys plana Sukhanov and Narmandakh 2000
Invalid names: Sineusemys plana Sukhanov and Narmandakh 2000 [valid]
Invalid names: Adocinae Cope 1869 [empty], Adocoides Narmandakh 1985 [nomen nudum], Adocus askari Nesov and Krasovskaya 1984 [nomen dubium]
Fm. Kinosternoidea Hay 1892 [mud turtle]
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G. Aromochelys Gray
G. Cinosternum von Spix 1824 [mud turtle]
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. Sternotherus Gray 1825 [musk turtle]
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†Sternotherus bonevalleyensis Bourque and Schubert 2015
Sternotherus carinatus Gray 1856 [Razor-backed musk turtle]
Sternotherus depressus Tinkle and Webb 1955 [Flattened musk turtle]
Sternotherus minor Agassiz 1857 [Loggerhead musk turtle]
Sternotherus odoratus Latreille 1801 [Common musk turtle]
†Sternotherus palaeodorus Bourque and Schubert 2015
G. Kinosternon von Spix 1824 [mud turtle]
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Kinosternon abaxillare Baur 1925 [Central Chiapas mud turtle]
Kinosternon acutum Gray 1831 [Tabasco mud turtle]
Kinosternon alamosae Berry and Legler 1980 [Alamos mud turtle]
Kinosternon angustipons Legler 1965 [Narrow-bridged mud turtle]
†Kinosternon arizonense Gilmore 1922 [Arizona mud turtle]
Kinosternon baurii Garman 1891 [Striped mud turtle]
Kinosternon chimalhuaca Berry et al. 1996 [Jalisco mud turtle]
Kinosternon creaseri Hartweg 1934 [Creaser's mud turtle]
Kinosternon dunni Schmidt 1947 [Dunn's mud turtle]
Kinosternon durangoense Iverson 1979 [Durango mud turtle]
Kinosternon flavescens Agassiz 1857 [Yellow mud turtle]
Kinosternon herrerai Stejneger 1925 [Herrera's mud turtle]
Kinosternon hirtipes Wagler 1830 [Rough-footed mud turtle]
Kinosternon integrum Le Conte 1854 [Mexican mud turtle]
Kinosternon leucostomum Dumeril 1851 [White-lipped mud turtle]
†Kinosternon notolophus Bourque 2015
Kinosternon oaxacae van Dijk et al. 2014 [Oaxaca mud turtle]
†Kinosternon pannekollops Bourque 2015
†Kinosternon pojoaque Bourque 2012
†Kinosternon rincon Bourque 2015
Kinosternon scorpioides Linneaus 1766 [Scorpion mud turtle]
†Kinosternon skullridgescens Bourque 2012
Kinosternon sonoriense Le Conte 1864 [Sonora mud turtle]
Kinosternon subrubrum Bonnaterre 1788 [Eastern mud turtle]
Kinosternon subrubrum hippocrepis Gray 1856 [Mississippi mud turtle]
†Kinosternon wakeeniense Bourque 2015
Invalid names: Platythyra Agassiz 1857 [synonym]
Subfm. Staurotypinae Gray 1869
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G. Claudius Cope 1865 [narrow-bridged musk turtle]
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Claudius angustatus Cope 1865 [narrow-bridged musk turtle]
G. Staurotypus Wagler 1830 [Mexican musk turtle]
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†Staurotypus moschus Cadena et al. 2012
Staurotypus salvini Gray 1864 [Chiapas giant musk turtle]
Staurotypus triporcatus Wiegmann 1828 [Mexican giant musk turtle]
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]
Invalid names: Amphiemys Cope 1877 [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
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G. Dermatemys Gray 1847 [Central American river turtle]
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Dermatemys mawii Gray 1847 [Central American river turtle]
G. †Kallistira Hay 1908
G. †Peishanemys Bohlin 1953
Invalid names: Lindholmemydinae [empty]
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. †Sinaspideretes Young and Chow 1953
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†Sinaspideretes wimani Young and Chow 1953
Invalid names: Yehguia Danilov and Parham 2006 [synonym]
Invalid names: Peltochelyidae Seeley 1880 [empty], Planetochelyidae Hutchison 2013 [empty]