Traits taxon details
original description
Hayami, I. (1958). A review of the so-called Liassic "cyrenoids" in Japan (Studies on the Liassic pelecypods in Japan, 7). <em>Japanese Journal of Geology and Geography.</em> 29(1-3): 11-27. page(s): 14-16, pl. 2, figs 22-28 [details] Available for editors 
original description
(of Crenotrapezium kurigata Hayami, 1958 †) Hayami, I. (1958). A review of the so-called Liassic "cyrenoids" in Japan (Studies on the Liassic pelecypods in Japan, 7). <em>Japanese Journal of Geology and Geography.</em> 29(1-3): 11-27. page(s): 16-17, pl. 2, figs 29, 30 [details] Available for editors 
original description
(of Crenotrapezium kurumense grossum Hayami, 1961 †) Hayami, I. (1961). Pelecypods from the Liassic Yamaoku Formation in west Japan. <em>Transactions and Proceedings of the Palaeontological Society of Japan, new series.</em> 43: 113-116., available online at https://doi.org/10.14825/prpsj1951.1961.43_113 page(s): 115-116, pl. 16, fig. 4 [details] Available for editors 
basis of record
Matsukawa, M.; Shibata, K.; Koarai, K.; Nishida, N. (2014). Corbiculoid fauna from the Lower Jurassic Iwamuro Formation, Gunma Prefecture, Japan. <em>Bulletin of Tokyo Gakugei University, Division of Natural Sciences.</em> 66: 149-158. page(s): 152-154, fig. 2I, M-Q [details] Available for editors 
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