Traits name details
original description
Yü, W. (1965). New material of fresh-water Gastropoda from the upper part of the Yuanchü Chun, Yuanchü, Shansi. <em>Acta Palaeontologica Sinica.</em> 13(1): 29-57. page(s): 39-40, pl. 3, figs 1-14 [details] Available for editors 
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