original description
Cockerell, T. D. A. (1907). A new zonitoid shell from the Miocene, Florissant Colorado. <em>The Nautilus.</em> 21(8): 89., available online at https://www.biodiversitylibrary.org/page/3666045
page(s): 89 [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): 156 [details] Available for editors [request]
From editor or global species database
Type locality Florissant, Colorado, United States [details]