“Talacastograptus, an unusual biserial graptolite, and other Silurian forms from Argentina and Bolivia”, AMGH, vol. 39, no. 3, pp. 343–350, Feb. 2014, Accessed: Jan. 13, 2026. [Online]. Available: https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2679