WILLAMS, S. Henry. An Arenig graptolite from Bell Island, eastern Newfoundland - its biostratigraphic and paleogeographic significance. Atlantic Geoscience, [S. l.], v. 26, n. 1, 1990. DOI: 10.4138/1692. Disponível em: https://journals.lib.unb.ca/index.php/ag/article/view/1692. Acesso em: 30 apr. 2024.