Traits taxon details
original description
(of Sphaerium xuanchengense Q.-H. Ma, 1980 †) Ma, Q.-H. (1980). Upper Jurassic and Cretaceous lamellibranchs of Zhejiang and Southern Anhui. In: Nanjing Institute of Geology and Palaeontology, A.S. (Ed.) Classification and Correlation of Mesozoic Volcaniclastic Rocks in Zhejiang-Anhui Provinces. Science Press, Beijing, pp. 105-134. page(s): 122, pl. 1, figs 15, 18, 20, 21 [details] Available for editors 
basis of record
Ma, Q.-H. (1994). Nonmarine Cretaceous bivalve assemblages in China. <em>Cretaceous Research.</em> 15(3): 271-284., available online at https://doi.org/10.1006/cres.1994.1017 [details] Available for editors 
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