†Peritresius Cope 1870 (turtle)
Reptilia - Testudines - Toxochelyidae
Full reference: E. D. Cope. 1870. Synopsis of the extinct Batrachia, Reptilia and Aves of North America. Transactions of the American Philosophical Society, New Series 14(1):1-252
Parent taxon: Lophocheliinae according to R. E. Weems 1988
Sister taxa: Ctenochelys, Lophochelys, Neurochelys, Oertelia, Prionochelys
Subtaxa: Peritresius ornatus
Ecology: aquatic omnivore