Traits taxon details
original description
Henderson, J. & Rodeck, H. G. (1934). New species of Pliocene Mollusca from Eastern Oregon. <em>Journal of Paleontology.</em> 8(3): 264-269. page(s): 268, pl. 37, figs 4a-c [details] Available for editors
additional source
Henderson, J. (1935). Fossil non-marine Mollusca of North America. <em>Geological Society of America Special Papers.</em> 3: 1-313. page(s): 249 [details] Available for editors
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