Classification of the family Polycotylidae

Fm. †Polycotylidae Williston 1908
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G. †Ceraunosaurus Thurmond 1968
G. †Edgarosaurus Druckenmiller 2002
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Edgarosaurus muddi Druckenmiller 2002
G. †Manemergus Buchy et al. 2005
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Manemergus anguirostris Buchy et al. 2005
G. †Mauriciosaurus Frey et al. 2017
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Mauriciosaurus fernandezi Frey et al. 2017
G. †Pahasapasaurus Schumacher 2007
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Pahasapasaurus haasi Schumacher 2007
Subfm. †Palmulainae Albright et al. 2007
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G. †Palmulasaurus Albright et al. 2007
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Palmulasaurus quadratus Albright et al. 2007
Invalid names: Palmula Albright et al. 2007 [replaced]
G. †Plesiopleurodon Carpenter 1996
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Plesiopleurodon wellesi Carpenter 1996
Subfm. †Polycotylinae Albright et al. 2007
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Unr. †Dolichorhynchia Clark et al. 2024
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G. †Dolichorhynchops Williston 1902
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Dolichorhynchops osborni Williston 1902
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Invalid names: Polycotylus osborni Watson 1951 [synonym]
Invalid names: Plesiosaurus ichthyospondylus Seeley 1869 [nomen vanum], Trinacromerum latimanus Williston 1908 [nomen vanum]
G. †Martinectes Clark et al. 2024
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Martinectes bonneri Adams 1997
G. †Unktaheela Clark et al. 2024
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Unktaheela specta Clark et al. 2024
G. †Eopolycotylus Albright et al. 2007
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Eopolycotylus rankini Albright et al. 2007
G. †Georgiasaurus Ochev 1977
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Georgiasaurus penzensis Otschev 1976
Invalid names: Georgia Otschev 1976 [replaced]
G. †Polycotylus Cope 1869
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Invalid names: Polycotylus dolichopus Williston 1906 [synonym]
Polycotylus sopozkoi Efimov et al. 2016
Polycotylus suprajurensis Sauvage 1876
G. †Scalamagnus Clark et al. 2024
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Scalamagnus tropicensis Schmeisser McKean 2012
G. †Serpentisuchops Persons IV et al. 2022
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Serpentisuchops pfisterae Persons IV et al. 2022
G. †Trinacromerum Cragin 1888
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Invalid names: Ceraunosaurus brownorum Thurmond 1968 [synonym], Trinacromerum anonymum Williston 1903 [synonym], Trinacromerum willistoni Riggs 1944 [synonym]
Trinacromerum kirki Russell 1935
G. †Sulcusuchus Gasparini and Spalletti 1990
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Sulcusuchus erraini Gasparini and Spalletti 1990
G. †Thililua Bardet et al. 2003
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Thililua longicollis Bardet et al. 2003
Invalid names: Cimoliasaurus leucoscopelus Etheridge, Jr. 1897 [nomen dubium], Dolichorhynchopidae Welles 1962 [synonym], Palmulasaurinae Albright et al. 2007 [empty], Polycotyilnae Albright et al. 2007 [empty]