Traits name details
original description
Whitfield, R.P. (1907). Remarks on and descriptions of new fossil Unionidae from the Laramie clays of Montana. <em>Bulletin of the American Museum of Natural History.</em> 23(26): 623-628., available online at http://digitallibrary.amnh.org/handle/2246/650 page(s): 625, pl. 40, figs 1-2 [details] 
source of synonymy
Hartman, J.H. (1998). The biostratigraphy and paleontology of latest Cretaceous and Paleocene freshwater bivalves from the western Williston Basin, Montana, U.S.A. In: Johnston, P.A. & Haggart, J.W. Bivalves: an eon of evolution. Calgary, University of Calgary Press, 317-345. page(s): 330-331 [details] Available for editors 
source of synonymy
Henderson, J. (1935). Fossil non-marine Mollusca of North America. <em>Geological Society of America Special Papers.</em> 3: 1-313. page(s): 85-86 [details] Available for editors 
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