Traits taxon details
original description
(of ) 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): 989-990, pl. 65, figs 38-40 [details]
basis of record
Okulitch, V. J. (1935). Fauna of the Black River Group in the Vicinity of Montreal. <em>The Canadian Naturalist.</em> 49(6): 96-107., available online at https://www.biodiversitylibrary.org/page/28103022 page(s): 101 [details]
additional source
Wagner, P. J. (2001). Rate heterogeneity in shell character evolution among lophospiroid gastropods. <em>Paleobiology.</em> 27(2): 290-310., available online at https://doi.org/10.1666/0094-8373(2001)027<0290:rhisce>2.0.co;2 [details] Available for editors 
|