original description
Meek, F.B.; Hayden, F.V. (1856). Descriptions of New Species of Acephala and Gastropoda, from the Tertiary formations of Nebraska Territory, with some general remarks on the Geology of the country about the sources of the Missouri River. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 8: 111-126., available online at https://www.biodiversitylibrary.org/page/1935165
page(s): 122-123 [details]
status source
Wenz, W. (1930). Zur Nomenklatur tertiärer Land- und Süßwassergastropoden. XI. Senckenbergiana. 12, 64-66.
page(s): 66 [details] Available for editors [request]
status source
Hartman J.H. (2015). New viviparid gastropods from the end Cretaceous and early Paleogene of the Williston Basin, USA and Canada. <em>The Nautilus.</em> 129(1): 1-22.
page(s): 19 [details]
From editor or global species database
Type locality Buford ("Ten miles from Fort Union"), North Dakota, United States; Fort Union Formation, Paleocene [details]