Traits taxon details
original description
(of ) Safford, J. M. (1869). Geology of Tennessee. S. C. Mercer, Nashville, 550 pp., available online at https://babel.hathitrust.org/cgi/pt?id=nyp.33433004446377 page(s): 289, pl. 3, fig. 3a-d [details]
basis of record
Ulrich, E. O.; Scofield, W. H. (1897). The Lower Silurian Gastropoda of Minnesota. <em>The Geology of Minnesota.</em> 3(2): 813-1081, pls. 61-82., available online at https://www.biodiversitylibrary.org/page/14923788 page(s): 889, pl. LXVI, fig. 24, 25 [details]
additional source
Wahlman G.P. (1992). Middle and Upper Ordovician symmetrical univalved mollusks (Monoplacophora and Bellerophontina) of the Cincinnati Arch region. <em>United States Geological Survey Professional Paper.</em> 1066-O: 1-213. page(s): 131, pl. 18, figs. 1-9 [details] Available for editors 
additional source
Ferrari, M.; Bertero, V.; Carrera, M. (2024). Late Ordovician (Sandbian-Hirnantian) marine gastropods from the Argentine Precordillera: their biogeographical significance in a middle to high latitudinal scenario. <em>Acta Palaeontologica Polonica.</em> 69(4): 747-767., available online at https://doi.org/10.4202/app.01208.2024 page(s): 752 [details] Available for editors 
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