original description(ofCucullaearca Conrad, 1865 †)Conrad, T. A. (1865). Catalogue of the Eocene and Oligocene Testacea of the United States. <em>American Journal of Conchology.</em> 1(1): 1-35. [two unnumbered pages of errata follow p. 190 of volume]., available online athttps://www.biodiversitylibrary.org/page/16084543 page(s): 11 [details]
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