Cappetta, H. (2004)
Sur une nouvelle espèce de Ptychotrygon (Neoselachii: Rajiformes) du Turonien supérieur de Touraine, France. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte, 2004(1), 41–52

Ősi, A. & Szabó, M. & Kollmann, H. & Wagreich, M. & Kalmár, R. & Makádi, L. & Szentesi, Z. & Summesberger, H. (2019)
Vertebrate remains from the Turonian (Upper Cretaceous) Gosau Group of Gams, Austria. Cretaceous Research, 99, 190–208
DOI: 10.1016/j.cretres.2019.03.001

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), Article e2162411
DOI: 10.1080/02724634.2022.2162411

Guinot, G. & Condamine, F.L. (2023)
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080