Reptilia - Testudines - Pantrionychidae
Alternative spellings: Plastomeninae, Plastomeninae
Full reference: O. P. Hay. 1902. Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey 179:1-868
Parent taxon: Pantrionychidae according to N. S. Vitek and W. G. Joyce 2015
See also Hay 1902, Hay 1908, Hay 1930, Holroyd and Hutchison 2002, Hutchison 2009, Hutchison and Holroyd 2003, Jaekel 1911, Joyce et al. 2009 and Sullivan et al. 2012
Sister taxa: Amyda egregia, Amyda salebrosa, Anostira molopina, Anostira oedemia, Anostira trionychoides, Aspideretes amnigenus, Aspideretes perplexus, Drazinderetes, Khunnuchelys, Murgonemys, 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 pennatus, Trionyx priscus, Trionyx punctiger, Trionyx quinni, Trionyx radulus, Trionyx vagans, Trionyx ventricosus, Trionyx virginiana
Subtaxa: Aspideretoides Atoposemys Gilmoremys Jimemys Plastomenini
Ecology: aquatic omnivore
Distribution:
• Eocene of United States (12: North Dakota, Utah, Wyoming collections)
• Clarkforkian of United States (5: Montana, Wyoming)
• Paleocene of Canada (2: Alberta), United States (42: Colorado, Montana, New Mexico, Utah, Wyoming)
• Cretaceous of Canada (6: Alberta, Saskatchewan), United States (117: Arizona, Colorado, Montana, New Mexico, North Dakota, South Dakota, Texas, Utah, Wyoming)
Total: 184 collections including 201 occurrences