Ptychotrygon is a genus of sawfish-like ray whose fossils have been found worldwide from the Cretaceous period (Albian-Maastrichtian). Along with Ptychotrygonoides, Texatrygon, and Asflapristis, it is the member of the family Ptychotrygonidae within the suborder Sclerorhynchoidei.
Species The following species are considered valid:
†Ptychotrygon ameghinorum †Ptychotrygon blainensis †Ptychotrygon eutawensis †Ptychotrygon geyeri †Ptychotrygon mcnultyi †Ptychotrygon nazeensis †Ptychotrygon pustulata †Ptychotrygon rostrispatula †Ptychotrygon striata †Ptychotrygon triangularis †Ptychotrygon vermiculata
References