original description
Russell, L.S. (1955). Additions to the molluscan fauna of the Kishenehn Formation, Southeastern British Columbia and adjacent Montana. In: Anonymous (Ed.) Annual Report of the National Museum of Canada for the fiscal year 1953-54. <em>National Museum of Canada Bulletin.</em> 136: 102-119.
page(s): 112-113, textfigs 7A-C, pl. 3, figs 7-10 [details] Available for editors [request]
basis of record
Roth, B. (1986). Land mollusks (Gastropoda: Pulmonata) from Early Tertiary Bozeman Group, Montana. <em>Proceedings of the California Academy of Sciences.</em> 44(11): 237-267., available online at https://www.biodiversitylibrary.org/page/16005679
page(s): 263 [details] Available for editors [request]
From editor or global species database
Type locality Left bank of Flathead River, 8.5 miles due north of border; about 2,900 feet east-northeast of the "Butts's Cabin" ranger station; British Columbia, Canada [details]