Patagonichnus: a new trace fossil from the Miocene of Patagonia. A probable fodinichnion of gregarious polychaetes. Ameghiniana, [S. l.], v. 42, n. 2, p. 277–294, 2013. Disponível em: https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/890. Acesso em: 9 sep. 2025.