CHATTERTON, Brian D.E. Sunwaptan (Upper Cambrian) trilobites of the Cow Head Group, western Newfoundland, Canada. Atlantic Geoscience, [S. l.], v. 27, n. 1, 1991. DOI: 10.4138/1722. Disponível em: https://journals.lib.unb.ca/index.php/ag/article/view/1722. Acesso em: 17 jul. 2024.