Traits taxon details
original description
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): 891, pl. 66, figs 30-33 [details]
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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