A revision of the Upper Cretaceous shark Ptychodus mediterraneus Canavari, 1916 from northeastern Italy, with a reassessment of P. latissimus and P. polygyrus Agassiz, 1835 (Chondrichthyes; Elasmobranchii)

Autor: Amadori, Manuel, Amalfitano, Jacopo, Giusberti, Luca, Fornaciari, Eliana, Carnevale, Giorgio, Kriwet, Jürgen
Zdroj: In Cretaceous Research June 2020 110
Databáze: ScienceDirect