Traits taxon details
original description
(of ) Stearns, R. E. C. (1900). Fossil land shells of the John Day region with notes on related living species. <em>Proceedings of the Washington Academy of Sciences.</em> 2: 651-660., available online at https://www.biodiversitylibrary.org/page/8872727 page(s): 653-655, pl. 35, figs 1-3 [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): 264 [details] Available for editors 
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