original description
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): 8, figs 25-66 [details]
From editor or global species database
Type locality Locality L6460, McCone County, Montana, United States; Fort Union Formation (Ludlow Member [Williston Basin]), Paleocene [details]