Carreño, AL, J Ledesma-Vázquez, and R Guerrero-Arenas. 2000. “Biostratigraphy and Depositional History of the Tepetate Formation at Arroyo Colorado (Early-Middle Eocene), Baja California Sur, Mexico”. Ciencias Marinas 26 (1):177-200. https://doi.org/10.7773/cm.v26i1.565.