Traits name details
original description
Yabe, H.; Nagao, T.; Shimizu, S. (1926). Cretaceous Mollusca from the Sanchû-Graben in the Kwantô Mountainland, Japan. <em>Science reports of the Tohoku Imperial University. 2nd series, Geology.</em> 9(3): 33-76., available online at http://hdl.handle.net/10097/30201 page(s): 53, pl. 13, fig. 26, pl. 14, figs 15, 28 [details] Available for editors 
source of synonymy
Tashiro, M.; Kozai, T. (1989). Bivalve Fossils from the Type Monobegawa Group (Part IV). <em>Research reports of the Kôchi University. Natural science.</em> 38: 113-144., available online at http://hdl.handle.net/10126/629 page(s): 127 [details] Available for editors 
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