The hexactinellid sponge Cyathophycus from the Upper Ordovician of the Argentine Precordillera. Ameghiniana, [S. l.], v. 46, n. 3, p. 449–459, 2009. Disponível em: https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/66. Acesso em: 1 oct. 2025.