“Revision of the brachiopod Eoorthis grandis Harrington, 1938, from the Lower Ordovician of Northwestern Argentina” (2013) Ameghiniana, 41(1), pp. 119–123. Available at: https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/809 (Accessed: 9 September 2025).