Reptilia - Testudines - Pantrionychidae
Parent taxon: Trionychia according to N. S. Vitek and W. G. Joyce 2015
Sister taxa: Carettochelyidae, Kappachelys
Subtaxa: Amyda egregia Amyda salebrosa Anostira molopina Anostira oedemia Anostira trionychoides Aspideretes amnigenus Aspideretes perplexus Axestemys Drazinderetes Khunnuchelys Kuhnemys Murgonemys Perochelys Petrochelys Plastomenidae Plastomenus catenatus Plastomenus coalescens Plastomenus communis Plastomenus corrugatus Plastomenus costatus Plastomenus fractus Plastomenus insignis Plastomenus lachrymalis Plastomenus multifoveatus Plastomenus punctulatus Plastomenus serialis Plastomenus torrejonensis Platypeltis amnicola Platypeltis antiqua Platypeltis trepida Procyclanorbis sardus Trionyx buiei Trionyx cariosus Trionyx cellulosus Trionyx concentricus Trionyx guttatus Trionyx halophilus Trionyx heteroglyptus Trionyx leptomitus Trionyx lima Trionyx pennatus Trionyx priscus Trionyx punctiger Trionyx quinni Trionyx radulus Trionyx vagans Trionyx ventricosus Trionyx virginiana
Ecology: aquatic omnivore
Distribution:
• Miocene of France (1 collection), Italy (1), United States (6: Maryland, Nebraska, New Jersey, North Carolina)
• Eocene of Australia (1), Belgium (3), France (10), Pakistan (1), the United Kingdom (1), United States (29: Colorado, Maryland , New Mexico, North Dakota, Utah, Virginia, Wyoming)
• Paleocene of Belgium (1), Canada (2: Alberta), Mongolia (1), United States (51: Colorado, Maryland, Montana, New Mexico, North Dakota, South Carolina, Utah, Virginia, Wyoming)
• Cretaceous of Canada (7: Alberta, Saskatchewan), China (5), Kazakhstan (3), Kyrgyzstan (1), Mongolia (9), United States (126: Arizona, Colorado, Delaware, Maryland, Montana, New Jersey, New Mexico, North Carolina, North Dakota, South Dakota, Texas, Utah, Wyoming), Uzbekistan (9)
Total: 268 collections including 307 occurrences