“EL GENERO ALBERTELLA (TRILOBITE) EN EL CAMBRICO MEDIO DE SAN JUAN (ARGENTINA)”. Ameghiniana 16, no. 1-2 (September 5, 2013): 9–17. Accessed September 11, 2025. https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/1577.