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. 10 [details] Available for editors [request]
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]