Traits name details
original description
Hase, A. (1960). The Late Mesozoic formations and their molluscan fossils in west Chugoku and north Kyushu, Japan. <em>Journal of Science of the Hiroshima University. Series C (Geology and Mineralogy).</em> 3(2): 281-342. page(s): 310-311, pl. 36, figs 9-12, textfig. 3h(1,2) [details] Available for editors 
basis of record
Hayami, I.; Kase, T. (1977). A systematic survey of the Paleozoic and Mesozoic Gastropoda and Paleozoic Bivalvia from Japan. <em>University Museum, University of Tokyo, Bulletin.</em> 13: 1-156, 11 plates. page(s): 51 [details] Available for editors 
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