Traits taxon details
original description
(of Gonyodiscus hendersoni L. S. Russell, 1938 †) Russell, L.S. (1938). New species of Gastropoda from the Oligocene of Colorado. <em>Journal of Paleontology.</em> 12(5): 505-507. page(s): 506-507, textfigs 6-8 [details] Available for editors 
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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