original description
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): 255-256, figs 35-38 [details] Available for editors [request]
From editor or global species database
Type locality U.S. Geological Survey Cenozoic locality 20011, Montana: Broadwater County: SE1/4 NW1/4 sec. 6, T 2 N, R 2 E, Three Forks Quadrangle (1950) 1:62,500; altitude 4,360 ft (1,330 m). [details]