MolluscaBase name details
original description
(of Sphaerium (Musculium) discus Pierce, 2001 †) Pierce, H.G.; Constenius, K.N. (2001). Late Eocene-Oligocene nonmarine mollusks of the northern Kishenehn Basin, Montana and British Columbia. <em>Annals of Carnegie Museum.</em> 70(1): 1-112.
page(s): 81-82, fig. 16(S-U) [details] Available for editors [request]