Traits taxon details
original description
(of Bulinus atavus C. A. White, 1877 †) White, C.A. (1877). Paleontological Papers No. 1. - Descriptions of Unionidae and Physidsae collected by Prof. E. D. Cope, from the Judith River Group of Montana Territory during the summer of 1876 <em>Bulletin of the United States Geological and Geographical Survey of the Territories</em>. 3: 599-602, available online at https://www.biodiversitylibrary.org/page/31646305 page(s): 601-602 [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): 263 [details] Available for editors 
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