Traits taxon details
original description
Pilsbry, H. A. (1935). Mollusks of the fresh-water Pliocene beds of the Kettleman Hills and neighboring oil fields, California. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 86: 541-570. Philadelphia. page(s): 555, pl. 21, fig. 1 [details] Available for editors
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): 202 [details] Available for editors
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