original description
Yen, T.-C. (1946). Late Tertiary Fresh-Water Mollusks from Southeastern Idaho. <em>Journal of Paleontology.</em> 20(5): 485-494.
page(s): 490, pl. 76, fig. 8 [details] Available for editors [request]
status source
Taylor, D. W. (1966). Summary of North American Blancan nonmarine mollusks. <em>Malacologia.</em> 4(1): 1-172, pls 1−8., available online at https://www.biodiversitylibrary.org/page/13147234
page(s): 68, pl. 6, figs 8-11 [details]
From editor or global species database
Type locality 9 miles northwest of Montpelier, Bear Lake County, Idaho, United States; Salt Lake Formation, late Miocene to early Pliocene [details]