Traits taxon details
original description
(of Unio grangeri T. D. A. Cockerell, 1915 †) Cockerell, T. D. A. (1915). New species of <i>Unio</i> from the Tertiary rocks of Wyoming. <em>Bulletin of the American Museum of Natural History.</em> 34(4): 121-126., available online at http://digitallibrary.amnh.org/handle/2246/1766 page(s): 122, textfig. 1 [details]
basis of record
Modell, H. (1957). Die fossilen Najaden Nordamerikas. Ein Klassifizierungsversuch. <em>Archiv für Molluskenkunde.</em> 86(4/6): 183-200. page(s): 192 [details] Available for editors 
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