Traits taxon details
original description
White, C. A. (1889). On invertebrate fossils from the Pacific coast. <em>United States Geological Survey, Bulletin.</em> 51: 435-532, 14 pls. page(s): 61, pl. 11, figs 1, 2 [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): 114 [details] Available for editors 
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