Seibertz, Ekbert. “Evolution of the Mid-Cretaceous in Northern Mexico under Paleoceanographic Aspects”. Revista Mexicana de Ciencias Geológicas 15, no. 1 (December 9, 2018): 87–90. Accessed June 20, 2025. https://rmcg.unam.mx/index.php/rmcg/article/view/1109.