“SANBERNARDASPIS PYGACANTHA NOV. GEN. ET NOV. SP. (TRILOBITA-ASAPHIDAE) DEL CERRO SAN BERNARDO, SALTA, REPUBLICA ARGENTINA”. Ameghiniana 10, no. 2 (August 25, 2013): 132–138. Accessed October 18, 2025. https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/1407.