Traits name details
original description
Meek, F. B. (1871). A preliminary list of fossils, collected by Dr. Hayden in Colorado, New Mexico and California, with brief desriptions of a few of the new species. <em>Proceedings of the American Philosophical Society held at Philadelphia.</em> 11: 425-431., available online at https://www.biodiversitylibrary.org/page/31205300 page(s): 430 [details]
basis of record
Henderson, J. (1935). Fossil non-marine Mollusca of North America. <em>Geological Society of America Special Papers.</em> 3: 1-313. page(s): 76-77 [details] Available for editors 
additional source
Watters, G. T. (2001). The evolution of the Unionacea in North America, and its implications for the worldwide fauna. <em>In: Bauer, G.; Wächtler, K. (eds) Ecology and evolution of the freshwater mussels Unionoida. Springer, Berlin, Heidelberg.</em> pp. 281-307. page(s): 291 [details] Available for editors 
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