PICKERILL, Ron K. Deep-water marine Rusophycus and Cruziana from the Ordovician Lotbinière Formation of Québec. Atlantic Geoscience, [S. l.], v. 31, n. 2, 1995. DOI: 10.4138/2102. Disponível em: https://journals.lib.unb.ca/index.php/ag/article/view/2102. Acesso em: 4 may. 2024.