original description
Conrad, T. A. (1838-1861). Fossils of the medial Tertiary of the United States, nos. 1, 2; Fossils of the (medial Tertiary or) Miocene formation of the United States, nos. 3, 4. Philadelphia, 89 pp., 49 pls.
page(s): 2, pl. 1, fig. 2 [details]
From editor or global species database
Type locality near Smithfield, James River [details]