Traits taxon details
original description
Pierce, H.G.; Constenius, K.N. (2001). Late Eocene-Oligocene nonmarine mollusks of the northern Kishenehn Basin, Montana and British Columbia. <em>Annals of Carnegie Museum.</em> 70(1): 1-112., available online at https://doi.org/10.5962/p.215142 page(s): 56, figs 13A-C [details] Available for editors 
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