original description
Pierce, H.G. (1992). The nonmarine mollusks of the Late Oligocene-Early Miocene Cabbage Patch fauna of western Montana. II. Terrestrial gastropod families other than Pupillidae (Pulmonata: Stylommatophora). <em>Journal of Paleontology.</em> 66(4): 610-620.
page(s): 614-615, figs 3.13-3.15 [details] Available for editors [request]
basis of record
Pierce, H.G.; Constenius, K.N. (2001). Late Eocene-Oligocene nonmarine mollusks of the northern Kishenehn Basin, Montana and British Columbia. <em>Annals of Carnegie Museum.</em> 70(1): 1-112.
page(s): 46, figs 9K-L [details] Available for editors [request]
From editor or global species database
Type locality KU-MT-44, Tavenner Ranch #4. SW 1/4, NE 1/4, sec. 10, T8N, R10W, Powell County, Montana, United States. Locality is in sides of an irrigation canal which was cut through a narrow, forested ridge. [details]