Ptychotrygon
Ptychotrygon is a genus of sawfish-like ray whose fossils have been found worldwide from the Cretaceous period. 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''