“Escolecodontes de la Formación El Imperial (Paleozoico Superior), Cuenca San Rafael, República Argentina”, AMGH, vol. 27, no. 1-2, pp. 29–38, Dec. 2013, Accessed: Jan. 27, 2026. [Online]. Available: https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/1969