MolluscaBase name details
original description
(of Unio pyramidatoides Whitfield, 1907 †) 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]
basis of record
Modell, H. (1957). Die fossilen Najaden Nordamerikas. Ein Klassifizierungsversuch. <em>Archiv für Molluskenkunde.</em> 86(4/6): 183-200.
page(s): 197 [details] Available for editors [request]