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): 75, pl. 10, fig. 8 [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): 198 [details] Available for editors [request]
From editor or global species database
Type locality East side of Driftwood Bend along Oldman River, near Taber ("Belly River, east side of Driftwood Bend"), and north side of Milk River, 5 miles below mouth of Pakowki Coulee, Forty Mile County No. 8, Alberta, Canada; Campanian, late Cretaceous [details]