LUCAS, Spencer G.; MCINTOSH, William C.; GONZÁLEZ-LEÓN, Carlos Manuel. Eocene Ar40-Ar39 age data of supposed Cretaceous volcanics (Rhyolite Tuff formation) in northeastern Sonora, Mexico. Revista Mexicana de Ciencias Geológicas, [S. l.], v. 13, n. 2, p. 184–187, 2019. Disponível em: https://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/1156. Acesso em: 12 apr. 2025.