RUDKIN, Dave. Silidfied Late Ordovician Urilobites from the Mackenzie Mountains, Northwest Territories, Canada. Geoscience Canada, [S. l.], v. 30, n. 3, 2003. Disponível em: https://journals.lib.unb.ca/index.php/GC/article/view/4149. Acesso em: 4 may. 2024.