Barragán-Manzo, Ricardo, and Consuelo Díaz-Otero Díaz-Otero. 2018. “Microfacies Analysis and Micropaleontological Data of the Barremian–Aptian Transition in Sierra Del Rosario, Durango, Mexico”. Revista Mexicana De Ciencias Geológicas 21 (2):247-59. https://rmcg.unam.mx/index.php/rmcg/article/view/891.