Traits name details
original description
Cope, E.D. (1875). Report on the geology of that part of New Mexico surveyed during the field-season of 1874. In: Wheeler, G.M. (Ed.) Annual Report upon the geographical explorations and surveys west of the one hundredth meridian, in California, Nevada, Nebraska, Utah, Arizona, Colorado, New Mexico, Wyoming, and Montana: Being Appendix LL of the Annual Report of the Chief of Engineers for 1875. Government Printing Office, Washington, DC, pp. 61-97, available online at https://pubs.usgs.gov/unnumbered/70039259/report.pdf page(s): 84 [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): 73 [details] Available for editors 
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