Ptychotrygon

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 blainensis
 * †Ptychotrygon eutawensis
 * †Ptychotrygon geyeri
 * †Ptychotrygon mcnultyi
 * †Ptychotrygon pustulata
 * †Ptychotrygon rostrispatula
 * †Ptychotrygon striata
 * †Ptychotrygon triangularis
 * †Ptychotrygon vermiculata