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): 194, pl. 4, figs 1-2 [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): 76 [details] Available for editors [request]
From editor or global species database
Type locality "Wettacombe's ranche near Musselshell River, in the vicinity of Harlowton, Montana", USA; Kootenai Fm., Early Cretaceous [details]