Traits taxon details
original description
(of ) White, C.A. (1885). On Marine Eocene, fresh-water Miocene, and other fossil Mollusca of western North America. <em>United States Geological Survey Bulletin.</em> 18: 1-26. page(s): 178-179, pl. 3, figs 4-6 [details] 
basis of record
Roth, B. (1986). Land mollusks (Gastropoda: Pulmonata) from Early Tertiary Bozeman Group, Montana. <em>Proceedings of the California Academy of Sciences.</em> 44(11): 237-267., available online at https://www.biodiversitylibrary.org/page/16005679 page(s): 263; note: misspelt as "dalli" [details] Available for editors 
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