STANLEY, D. C.A.; PICKERILL, R. K. Shallow marine Paleodictyon from the Upper Ordovician Georgian Bay Formation of southern Ontario. Atlantic Geoscience, [S. l.], v. 29, n. 2, 1993. DOI: 10.4138/1994. Disponível em: https://journals.lib.unb.ca/index.php/ag/article/view/1994. Acesso em: 2 may. 2024.