Traits taxon details
original description
Cossmann, M. (1923). Description des mollusques. Pp. 1-188, 11 pls. in O'Gorman, G. & Cossmann, M. <i>Le gisement Cuisien de Gan (Basses-Pyrénées)</i>. Pau: Cossmann & O'Gorman. xxvii + 188 pp., 14 pls. page(s): 125-126, pl. 7 fig. 32, 39; pl. 8 fig. 18 [details] 
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