“GRAPTOLITE-TRILOBITE BIOSTRATIGRAPHY IN THE SANTA VICTORIA AREA, NORTHWESTERN ARGENTINA. A KEY FOR REGIONAL AND WORLDWIDE CORRELATION OF THE LOWER ORDOVICIAN (TREMADOCIAN–FLOIAN)” (2015) Ameghiniana, 52(5), pp. 535–557. Available at: https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2905 (Accessed: 31 October 2025).