MolluscaBase name details
original description
Conrad, T. A. (1857). Description of the Tertiary fossils collected on the survey. <em>Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean.</em> 6(2): 69-73., available online at https://biodiversitylibrary.org/page/11723184
page(s): p. 71 (Reprint Dall 1909, p. 178), pl. 3, fig. 14 [details]