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): 19-20, pl. 4, fig. 7 [details]
additional source
Leonard, A. B. & Franzen, D. S. (1946). A review of the genus <em>Calipyrgula</em> Pilsbry (Gastropoda: Amnicolidae). <em>The University of Kansas Science Bulletin.</em> 31(1): 107-114., available online at https://biodiversitylibrary.org/page/4402419
page(s): 109-110, pl. 1, fig. 2 [details]
From editor or global species database
Type locality Locality No. 3, six and one-half miles south, one-half mile west of Gate, Beaver county, Oklahoma, United States; Clarendonian, middle to late Miocene [details]