Gómez-Luna, M. E., & Martínez-Cortés, Ángel. (2019). Relationships and differences between the Triassic ammonoid successions of northwestem Sonora, Mexico, and west-central Nevada, U.S.A. Revista Mexicana De Ciencias Geológicas, 14(2), 208–218. Retrieved from https://rmcg.unam.mx/index.php/rmcg/article/view/1141