original description
Cooper, J. G. (1894). Catalogue of Californian Fossils (parts II, III, IV, and V). <em>California State Mining Bureau Bulletin.</em> 4: 1-65, 6 pls.
page(s): 40, pl. 2, figs. 23-24 [details]
From editor or global species database
Type locality Marysville Buttes [details]