original description
White, C.A. (1876). Invertebrate paleontology of the Plateau province, together with notice of a few species from localities beyond its limits in Colorado. In: Powell, J.W. (Ed.) Report on the geology of the eastern portion of the Uinta Mountains and a region of country adjacent thereto. With atlas. U. S. Geological and Geographic Survey of the Terretories, Washington, 74-135 pp., available online at https://www.biodiversitylibrary.org/page/19391191
page(s): 123 [details]
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): 171 [details] Available for editors [request]
From editor or global species database
Type locality Locality L3335, Sevier Cliffs, 12 miles above Panguitch, and Upper Kanab, Garfield County, and Locality L3335a, Upper Kanab Creek, Kane County, Utah, United States; Mesaverde Group, late Santonian to early Maastrichtian, late Cretaceous [details]