Amadori, M., Kovalchuk, O., Barkaszi, Z., Giusberti, L., Kindlimann, R., & Kriwet, J. (2023). A diverse assemblage of Ptychodus species (Elasmobranchii: Ptychodontidae) from the Upper Cretaceous of Ukraine, with comments on possible diversification drivers during the Cenomanian. Cretac Res.

Amadori, Manuel, Oleksandr Kovalchuk, Zoltán Barkaszi, Luca Giusberti, René Kindlimann, ja Jürgen Kriwet. "A Diverse Assemblage of Ptychodus Species (Elasmobranchii: Ptychodontidae) From the Upper Cretaceous of Ukraine, With Comments On Possible Diversification Drivers During the Cenomanian." Cretac Res 2023.

Amadori, Manuel, et al. "A Diverse Assemblage of Ptychodus Species (Elasmobranchii: Ptychodontidae) From the Upper Cretaceous of Ukraine, With Comments On Possible Diversification Drivers During the Cenomanian." Cretac Res 2023.