Ptychotrygonidae Explained

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.^[1]

Notes and References

1. Begat . A. . Kriwet . J. . Gelfo . J.N. . Cavalli . S.G. . Schultz . J.A. . Martin . T. . 2023 . The first southern hemisphere occurrence of the extinct Cretaceous sclerorhynchoid sawfish Ptychotrygon (Chondrichthyes, Batoidea), with a review of Ptychotrygon taxonomy . Journal of Vertebrate Paleontology . 42 . 2 . e2162411 . 10.1080/02724634.2022.2162411 . free. 37564697 . 7614936 .