Beraldi-Campesi, H., & Cevallos-Ferriz, S. R. S. (2018). Microfossil diversity in the Tarahumara Formation, Sonora. Revista Mexicana De Ciencias Geológicas, 22(2), 261–271. Retrieved from https://rmcg.unam.mx/index.php/rmcg/article/view/858