Pickerill, Ron. K., Denis Fillion, and Pat J. Brenchley. “A Note on the Occurrence of Arthrophycus in the Bell Island Group of Eastern Newfoundland”. Atlantic Geoscience 27, no. 1 (March 1, 1991). Accessed April 28, 2024. https://journals.lib.unb.ca/index.php/ag/article/view/1721.