original description
Stanton, T.W. (1903). A new fresh-water molluscan faunule from the Cretaceous of Montana. <em>Proceedings of the American Philosophical Society.</em> 42(173): 188-199., available online at http://www.jstor.org/stable/983732
page(s): 197, pl. 4, figs 7-10 [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): 220 [details] Available for editors [request]
From editor or global species database
Type locality Wettacombe's ranch, near Musselshell River, in the vicinity of Harlowton, Montana, United States; Kootenai Formation, Aptian to Albian, early Cretaceous [details]