Traits name details
original description
White, C. A. (1877). Report upon the invertebrate fossils collected in portions of Nevada, Utah,
Colorado, New Mexico, and Arizona, by parties of the expeditions of 1871, 1872, 1873, and 1874. <em>Report upon United States geographical surveys west of the one hundredth meridian. Vol. 4, Paleontology . Government Printing Office, Washington DC.</em> pp. 1−219, pls. 1. page(s): 166, pl. 13, fig. 5 [details]
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