Traits name details
original description
(of Nippononaia obsoleta Hase, 1960 †) 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): 317-318, pl. 37, figs 10a-d, 11, pl. 38, fig. 1a, b, textfig. 4c [details] Available for editors 
basis of record
Chen, J.-H.; Stiller, F. (2014). <em>Martinsonella</em>, an early Late Cretaceous non-marine bivalve subgenus, and a new species from Kumamoto, Japan. <em>Cretaceous Research.</em> 48: 102-109., available online at https://doi.org/10.1016/j.cretres.2013.12.002 page(s): 104, 107 [details] Available for editors 
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