Traits taxon details
original description
(of Gyraulus monocarinatus Chamberlin & E. G. Berry, 1933 †) Chamberlin, R. V. & Berry, E. (1933). Mollusks of the Pliocene deposits at Collinston, Utah. <em>The Nautilus.</em> 47(1): 25-29, pls. 4-5., available online at https://www.biodiversitylibrary.org/page/8522592 page(s): 27, pl. 5, figs 7-8 [details]
original description
(of Gyraulus annectans Chamberlin & E. G. Berry, 1933 †) Chamberlin, R. V. & Berry, E. (1933). Mollusks of the Pliocene deposits at Collinston, Utah. <em>The Nautilus.</em> 47(1): 25-29, pls. 4-5., available online at https://www.biodiversitylibrary.org/page/8522592 page(s): 27-28, pl. 5, figs 9-10 [details]
additional source
Taylor, D. W. (1966). Summary of North American Blancan nonmarine mollusks. <em>Malacologia.</em> 4(1): 1-172, pls 1−8., available online at https://www.biodiversitylibrary.org/page/13147234 page(s): 80 [details]
additional source
Yen, T.-C. (1947). Pliocene Fresh-Water Mollusks from Northern Utah. <em>Journal of Paleontology.</em> 21(3): 268-277. page(s): 276, pl. 43, figs 19a-c [details] Available for editors 
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