Traits taxon details
original description
(of ) Meek, F.B. (1860). Descriptions of new fossil remains collected in Nebraska and Utah, by the exploring expeditions under the command of Captain J. H. Simpson, of U. S. Topographical Engineers, [extracted from that officer's forthcoming report]. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 12: 308-315., available online at https://www.biodiversitylibrary.org/page/26297455 page(s): 311 [details]
basis of record
Wright, R. P. (1974). Jurassic Bivalves from Wyoming and South Dakota: A Study of Feeding Relationships. <em>Journal of Paleontology.</em> 48(3): 425-433. [details] Available for editors 
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