original description
Pilsbry, H. A. (1934). Pliocene fresh-water fossils of the Kettleman Hills and neighboring Californian oil fields. <em>The Nautilus.</em> 48(1): 15-17., available online at https://www.biodiversitylibrary.org/page/8520846
page(s): 15 [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): 202 [details] Available for editors [request]
From editor or global species database
Type locality Shell Oil Company locality K-62, Kettleman Hills, North Dome, Fresno County (Pilsbry 1935: 554), California, United States; Tulare Formation, Pleistocene [details]