Traits taxon details
original description
Whitfield, R. P. (1878). Preliminary descriptions of new species of fossils from the lower geological formations of Wisconsin. <em>Annual report of the Wisconsin Geological Survey for 1877.</em> 50-89., available online at https://search.library.wisc.edu/digital/AQORDYWVU3OT7H8T/pages/AUCZ33CGCWPH5D8D page(s): 62 [details]
basis of record
Knight, J. B. (1941). Paleozoic gastropod genotypes. <em>Geological Society of America Special Papers.</em> 31: 1-510., available online at https://doi.org/10.1130/spe32 page(s): 306, pl. 89, figs. 3a-c [details] Available for editors 
additional source
Yochelson E. L., Webers G. F. (2006). A restudy of the Late Cambrian molluscan fauna of Berkey (1898) from Taylors Falls, Minnesota. <em>Minnesota Geological Survey Report of Investigations.</em> 64: 1-60. page(s): 31, fig. 3A [details] Available for editors 
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