Ferrusquia-Villafranca I, Applegate SP, Espinosa-Arrubarrena L. First Paleogene selachifauna of the middle American-Caribbean Antillean region, La Mesa de Copoya, west-central Chiapas, Mexico—systematics and paleontological significance. revmexcg [Internet]. 2018 Nov. 6 [cited 2025 May 6];16(2):155-74. Available from: https://rmcg.unam.mx/index.php/rmcg/article/view/1066