ALVARADO-ORTEGA, Jesús; PORRAS-MÚZQUIZ, Héctor Gerardo. On the presence of Xiphactinus (Teleostei, Ichthyodectiformes) in the Coniacian-Campanian marine deposits of the Piedritas site, Coahuila, northern Mexico. Revista Mexicana de Ciencias Geológicas, [S. l.], v. 39, n. 2, p. 142–150, 2022. DOI: 10.22201/cgeo.20072902e.2022.2.1684. Disponível em: https://rmcg.unam.mx/index.php/rmcg/article/view/1684. Acesso em: 14 mar. 2025.