Gómez-Luna ME, Martínez-Cortés Ángel. Relationships and differences between the Triassic ammonoid successions of northwestem Sonora, Mexico, and west-central Nevada, U.S.A. revmexcg [Internet]. 2019 Jan. 7 [cited 2025 May 3];14(2):208-1. Available from: https://www.rmcg.unam.mx/index.php/rmcg/article/view/1141