original description
Russell, L.S. (1952). Molluscan fauna of the Kishenehn Formation, Southeastern British Columbia. In: Anonymous (Ed.) Annual Report of the National Museum of Canada for the fiscal year 1950-51. <em>National Museum of Canada Bulletin.</em> 126: 120-141.
page(s): 130, textfig. 9A, pl. 19, fig. 1 [details] Available for editors [request]
From editor or global species database
Type locality Locality W3, north bank of Couldrey ("Colder") Creek at the mouth of Burnham Creek, about 0.6 mile up Couldrey Creek from its junction with Flathead River, and about 2.9 miles due north of the Boundary and Flathead Valley, British Columbia, Canada; Kishenehn Formation, middle Eocene [details]