original description
Dall, W. H. (1913). On a brackish water Pliocene fauna of the southern Coastal Plain. <em>Proceedings of The United States National Museum.</em> 46 (2023): 225-237., available online at https://www.biodiversitylibrary.org/page/7762111
page(s): 236, pl. 21, figs 3-4 [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): 248 [details] Available for editors [request]
From editor or global species database
Type locality Rapides Parish (about 10 miles SW of Alexandria) ("Station 6040, near Alexandria"), Louisiana, United States; Fleming Formation (Castor Creek Member), middle Miocene [details]