original description
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): 33-34, fig. 10I-10K [details] Available for editors [request]
From editor or global species database
Type locality NFF-19, Wurtz Bend, east bank of Flathead River, west of Wurtz Landing Strip, Flathead County, Montana, United States [details]