original description
Yen, T.-C. (1951). Some Lower Cretaceous pelecypods from Pryor, Montana. <em>American Museum Novitates.</em> 1481: 1-5.
page(s): 3-4, fig. 3 [details] Available for editors [request]
status source
Yen, T.-C. (1951). A new name for <em>Unio reesidei</em> Yen. <em>Journal of Paleontology.</em> 25(5): 700. [details] Available for editors [request]
From editor or global species database
Type locality "Cloverly formation, top of basal blue stratum, approximately 45 feet above top of Lakota, near Hoplitosaurus skeleton (A.M.N.H. No. 3016), Monument Creek, 7 miles north of Pryor, Montana" (USA) [details]