Traits taxon details
original description
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 [details] 
basis of record
Higo, S.; Callomon, P.; Goto, Y. (1999). Catalogue and Bibliography of the Marine Shell-Bearing Mollusca of Japan. Elle Scientific Publications, Yao, Japan, 749 pp. page(s): 360 [details] Available for editors 
|