Pickerill, Ron. K., Denis Fillion, et Pat J. Brenchley. « A Note on the Occurrence of Arthrophycus in the Bell Island Group of Eastern Newfoundland ». Atlantic Geoscience 27, no. 1 (mars 1, 1991). Consulté le juillet 18, 2024. https://journals.lib.unb.ca/index.php/ag/article/view/1721.