MolluscaBase taxon details
original description
(of Tryblidium pileolum Whitfield, 1889 †) Whitfield R.P. (1889). Observations on some imperfectly known fossils from the Calciferous sandrock of Lake Champlain, and descriptions of several new forms. <em>Bulletin of the American Museum of Natural History.</em> 2:41-63. page(s): 46, pl. 7, figs. 15-17 [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): 829, 836 [details]
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