“GRAPTOLITE-TRILOBITE BIOSTRATIGRAPHY IN THE SANTA VICTORIA AREA, NORTHWESTERN ARGENTINA. A KEY FOR REGIONAL AND WORLDWIDE CORRELATION OF THE LOWER ORDOVICIAN (TREMADOCIAN–FLOIAN)”, AMGH, vol. 52, no. 5, pp. 535–557, Jun. 2015, Accessed: Sep. 06, 2025. [Online]. Available: https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2905