Traits taxon details
original description
(of ) Matsumoto [Matumoto], T. (1938). Geology of Gosyonoura Islands, Amakusa, with Special Reference to the Cretaceous Stratigraphy. <em>The Journal of the Geological Society of Japan.</em> 45(532): 1-47., available online at https://doi.org/10.5575/geosoc.45.1 page(s): 21, text-fig. 23 [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): 50 [details] Available for editors 
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