Traits taxon details
original description
(of ) Yokoyama, M. (1922). Fossils from the Upper Musashino of Kazusa and Shimosa. <em>Journal of the College of Science, Imperial University of Tokyo.</em> 44(1): viii + 1-200, pls. 1-17 [7 July 1922]., available online at http://umdb.um.u-tokyo.ac.jp/DKoseibu/pdf/Ref_0465_.pdf page(s): 49, pl. 2, fig. 6 [details] 
basis of record
Hasegawa K. (2017). Families Marginellidae and Cystiscidae. Pp. 994-995, in: T. Okutani (ed.), Marine Mollusks in Japan, ed. 2. 2 vols. Tokai University Press. 1375 pp. page(s): 995, pl. 287 fig. 8 [details]
additional source
Cossignani, T. (2006). <i>Marginellidae & Cystiscidae of the World</i>. L'Informatore Piceno. 408 pp. page(s): 340 [details]
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