original description
Baker, F. C. (1919). Description of a new species and variety of <em>Planorbis</em> from post-glacial deposits. <em>The Nautilus.</em> 32(3): 94-97, pl. 7., available online at https://www.biodiversitylibrary.org/page/1772180
page(s): 94-95, pl. 7, figs 4-6 [details]
basis of record
InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project.
page(s): 94, pl. 7, figs. 4-6 [details]
source of synonymy
La Rocque, A. (1968). Pleistocene Mollusca of Ohio <em>State of Ohio, Department of Natural Resources, Division of Geological Survey, Bulletin</em>. 62(3): xv-xxiv, 357-553
page(s): 493 [details]
From editor or global species database
Type locality Campus of the University of Illinois, in a ditch and in excavations for the basement of the new greenhouses, Urbana, Illinois, United States; early Wisconsinan, late Pleistocene [details]