†Polythorax Cope 1876 (turtle)
Reptilia - Testudines - Baenidae
Full reference: E. D. Cope. 1876. Descriptions of some vertebrate remains from the Fort Union Beds of Montana. Proceedings of the Academy of Natural Sciences of Philadelphia 28:248-261
Parent taxon: Baenidae according to O. P. Hay 1908
Sister taxa: Australobaena, Baena, Baeninae, Baenodda, Boremys, Cedrobaena, Chisternon, Denazinemys, Eubaena, Eubaeninae, Gamerabaena, Hayemydinae, Hayemys, Neurankylinae, Neurankylus, Palatobaena, Palatobaeninae, Peckemys, Plesiobaena, Probaena, Stygichelys, Stygiochelys, Thescelus, Trinitichelys, Trinitychelyinae
Subtaxa: Polythorax missuriensis
Ecology: