Loss, Renato. “Contributions to the Knowledge of the Graptolytic Faunas of the Argentine North: I. Graptolites from Cerro San Bernardo (Salta) and the La Ciénaga Dam Area (Jujuy)”. Revista de la Asociación Geológica Argentina 6, no. 1 (January 30, 1951): 21-62. Accessed May 4, 2024. https://revista.geologica.org.ar/raga/article/view/951.