original description
Whiteaves, J.F. (1885). Report on the Invertebrata of the Laramie and Cretaceous rocks of the vicinity of the Bow and Belly Rivers and adjacent localities in the North-West Territory. <em>Contributions to Canadian palaeontology.</em> 1(1): 1-89., available online at https://www.biodiversitylibrary.org/page/38502645
page(s): 71, pl. 10, fig. 5 [details]
basis of record
Henderson, J. (1935). Fossil non-marine Mollusca of North America. <em>Geological Society of America Special Papers.</em> 3: 1-313.
page(s): 249 [details] Available for editors [request]
From editor or global species database
Type locality Oldman River, near mouth of Bow River ("Belly River near its Junction with the Bow River"), and South Saskatchewan River, 6 miles below mouth of Bow River; both Cypress County, Alberta, Canada; Foremost/Judith River Formation, Campanian, late Cretaceous [details]