MolluscaBase name details
original description
Conrad, T. A. (1832-1835). <i>Fossil shells of the Tertiary formations of North America, illustrated by figures drawn on stone from nature</i>. Philadelphia: Judah Dobson, W.P. Gibbons, Printer. viii + 56 pp., 18 pls. , available online at https://www.biodiversitylibrary.org/page/53923548
page(s): 17, pl. 3 fig. 1 [details]