Traits taxon details
original description
(of Trigonia ogawai Yehara, 1923 †) Yehara, S. (1923). Cretaceous Trigoniae from Amakusa islands, Prov. Higo, Kyûshû, Japan. <em>The Journal of the Geological Society of Japan.</em> 30: 1-12. page(s): 4, pl. 4, figs 3-5 [details] 
basis of record
Cooper, M. R. (2015). On the Pterotrigoniidae (Bivalvia, Trigoniida): their biogeography, evolution, classification and relationships. <em>Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen.</em> 277(1): 11-42., available online at https://doi.org/10.1127/njgpa/2015/0488 [details] Available for editors 
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