Copper, P. (1982). Early Silurian atrypoids from Manitoulin Island and Bruce Peninsula, Ontario. <em>Journal of Paleontology.</em> 56(3): 680-702.[details] Available for editors
original descriptionCopper, P. (1982). Early Silurian atrypoids from Manitoulin Island and Bruce Peninsula, Ontario. <em>Journal of Paleontology.</em> 56(3): 680-702.[details] Available for editors