Traits taxon details
original description
(of Limnaea shumardi Meek, 1876 †) Meek, F. B. (1876). A report on the invertebrate Cretaceous and Tertiary fossils of the upper Missouri country. In: Hayden, F.V. (Ed.) Report of the United States Geological Survey of the Territories. 9: lxiv + 1–629, 45 pls., available online at https://www.biodiversitylibrary.org/page/2024294 page(s): 599, pl. 45, figs 6a-b [details]
additional source
Pierce, H.G. (1993). The nonmarine mollusks of the Late Oligocene-Early Miocene Cabbage Patch fauna of western Montana III. Aquatic mollusks and conclusions. <em>Journal of Paleontology.</em> 67(6): 980-993. page(s): 986-987 [details] Available for editors 
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