original description
Leonard, A.B.; Franzen, D.S. (1944). Mollusca of the Laverne Formation (Lower Pliocene) of Beaver County, Oklahoma. <em>The University of Kansas Science Bulletin.</em> 30(1): 15-39., available online at https://biodiversitylibrary.org/page/2994493
page(s): 22-23, pl. 4, fig. 11 [details]
source of synonymy
Taylor, D.W. (1954). Nonmarine Mollusks From Barstow Formation of Southern California. <em>United States Geological Survey Professional Paper.</em> 254-C: 67-80.
page(s): 73 [details] Available for editors [request]
From editor or global species database
Type locality Locality No. 4, six and one-half miles south, two and one-half miles west of Gate, Beaver county, Oklahoma, United States; Ogallala Formation, middle Miocene to Pliocene [details]