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==