MolluscaBase 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): 624-625, pl. 41, figs 1-5 [details]
From editor or global species database
Type locality "130 miles northwest of Miles City, Montana, 180 feet above Pierre shales", USA; Laramie Fm., Maastrichtian, Late Cretaceous [details]
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