Ptychotrygonidae

Ptychotrygonidae is an extinct family of cartilaginous fish from the Cretaceous period belonging to the suborder Sclerorhynchoidei. This family contains the genera Archingeayia, Asflapristis, Ptychotrygon, Ptychotrygonoides, and Texatrygon.^[2]

Ptychotrygonidae Temporal range: Albian–Maastrichtian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Order:	Rajiformes
Suborder:	†Sclerorhynchoidei
Family:	†Ptychotrygonidae Kriwet, Nunn, & Klug, 2009[1]
Genera
†Archingeayia †Asflapristis †Ptychotrygon †Ptychotrygonoides †Texatrygon