Barroso-Barcenilla, F., P.M. Callapez, A. Ferreira Soares, and M. Segura. “Cephalopod Assemblages and Depositional Sequences from the Upper Cenomanian and Lower Turonian of the Iberian Peninsula (Spain and Portugal)”. Journal of Iberian Geology 37, no. 1 (October 5, 2011): 9–28. https://doi.org/10.5209/rev_JIGE.2011.v37.n1.1.