original description
Matthew, G.F. (1895). On the Organic Remains of the Little River Group, No. II. <em>Proceedings and Transactions of the Royal Society of Canada.</em> 12(4): 89-100., available online at https://www.biodiversitylibrary.org/page/10805507
page(s): 98-99, pl. 1, fig. 10a, b [details]
From editor or global species database
Type locality "Dark gray shale of Plant Bed No. 2. Fern Ledges, Lancaster, St. John County, N. B." (New Brunswick, Canada) [details]