Traits taxon details
original description
(of ) Conrad, T. A. (1842). Observations on the Silurian and Devonian systems of the United States. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 8: 228–280., available online at https://www.biodiversitylibrary.org/page/24623226 page(s): 269, pl. 16, fig. 6 [details]
status source
Rollins H.B. (1975). Gastropods from the Lower Mississippian Wassonville Limestone in southeastern Iowa. <em>American Museum Novitates.</em> 2579: 1-35. page(s): 5-6 [details] Available for editors 
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