Traits taxon details
original description
(of Rissoina magna Piette, 1855 †) Piette, E. (1855). Observations sur les étages inférieurs du terrain jurassique dans les départements des Ardennes et de l'Aisne. <em>Bulletin de la Société Géologique de France.</em> ser. 2, 12(2): 1083-1122., available online at https://www.biodiversitylibrary.org/page/54371217 page(s): 1105 [details]
original description
(of Phasianella conica J. Morris & Lycett, 1851 †) Morris, J. & J. Lycett. (1851). A monograph of the Mollusca from the Great Oolite, chiefly from Minchinhampton and the coast of Yorkshire. Part I. Univalves. London: The Palaeontological Society. viii, 130 pp.; plates I-XV. , available online at https://biodiversitylibrary.org/page/13127871 page(s): 74, pl. 11, fig. 30, 30a [details]
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