original description
(of Cardium dalli Heilprin, 1886 †) Heilprin, A. (1886-1887). Explorations on the West Coast of Florida and in the Okeechobee Wilderness; with special reference to the geology and zoology of the Floridian Peninsula. vii + 134 pp. <em>Transactions of the Wagner Free Institute of Science, Philadelphia.</em> 1: 1-136, 19 pls [65- 127 (1886); i-xiv, 128-136, 19 pls (1887)]., available online at https://biodiversitylibrary.org/page/21811453
page(s): 131, pl. 16a fig. 70 [details]
From editor or global species database
Type locality U.S.A., western Florida, Caloosahatchee River, Glades County, downstream from Fort Thompson. Leg. J. Willcox, 1887. Caloosahatchee Formation (Pliocene) [details]
Type material USNM PAL 361061, unspecified type; WFIS 939 (Wagner Free Institute of Science), unspecified type [details]