MolluscaBase taxon details
original description
Russell, L.S. (1935). Fauna of the Upper Milk River beds, Southern Alberta. <em>Transactions of the Royal Society of Canada, third series. Section IV - Geological Sciences.</em> 29: 115-128. page(s): 117-118, pl. 1, figs 1-4 [details] Available for editors [request]
additional source
Watters, G.T. (2001). The Evolution of the Unionacea in North America, and Its Implications for the Worldwide Fauna. In: Bauer, G.; Wächtler, K. (eds) Ecology and Evolution of the Freshwater Mussels Unionoida. Springer, Berlin, Heidelberg, pp. 281-307 page(s): 295 [details]
From editor or global species database
Type locality "Ls. 13, sec. 33, tp. 1, rge. 11, w. 4th m.; S.E. side of Deadhorse coulee", Alberta, Canada; Upper Milk River beds, Late Cretaceous [details]
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