“NUEVOS HALLAZGOS DE GRAPTOLI1DS EN LA FORMACION SIERRA DE LA INVERNADA (ORDOVICICO), PRECORDILLERA DE SAN JUAN, ARGENTINA”. Ameghiniana 29, no. 1 (December 14, 2013): 9–26. Accessed January 10, 2026. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/2076.