Traits taxon details
original description
(of Trigonia pustulosa Nagao, 1930 †) Nagao, T. (1930). On some Cretaceous fossils from the Islands of Amakusa, Kyûshû, Japan. <em>Journal of the Faculty of Science, Hokkaido Imperial University, Series IV, Geology and Mineralogy.</em> 1: 1-26. page(s): 17, pl. 3, figs 9-12 [details] Available for editors 
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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