original description
Conrad, T. A. (1843). Descriptions of nineteen species of Tertiary fossils of Virginia and North Carolina. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 1: 323-329., available online at https://www.biodiversitylibrary.org/page/1779423
page(s): 324 [details]
additional source
Prime, T. (1860). Synonymy of the Cyclades, a family of Acephalous Mollusca. Part 1. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 12: 267-301., available online at https://www.biodiversitylibrary.org/page/26297414
page(s): 277 [details]
From editor or global species database
Type locality "Vicinity of Petersburg, Virginia", USA; Miocene [details]