original description
Russell, L.S. (1931). Mollusca from the Upper Cretaceous and Lower Tertiary of Alberta. <em>Transactions of the Royal Society of Canada, third series. Section IV - Geological Sciences.</em> 25: 9-19.
page(s): 15-16, pl. 2, figs 12-13 [details] Available for editors [request]
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): 151 [details] Available for editors [request]
From editor or global species database
Type locality "from west side of McLeod river, just below mouth of McPherson creek; the locality is in unsurveyed country, but would be in legal subdivision 1, section 6, township 51, range 22, west of 5th meridian.", Alberta, Canada [details]