original description
Yen, T.-C.; Reeside, J.B.J. (1946). Fresh-Water Mollusks from the Morrison Formation (Jurassic) of Sublette County, Wyoming. <em>Journal of Paleontology.</em> 20(1): 52-58.
page(s): 57 [details] Available for editors [request]
original description
(of Physa prisca Walcott, 1883 †) Walcott, C.D. (1883). Fresh-water shells from the paleozoic rocks of Nevada <em>Science</em>. 2(46): 808
page(s): 808, textfig. 2 [details]
From editor or global species database
Nomenclature New name for P. prisca Walcott, 1883, non Noulet, 1854. [details]