Traits name details
original description
Grabau, A. W. (1923). Cretaceous fossils from Shantung. <em>Bulletin of the Geological Survey of China.</em> 5(2): 143-181. page(s): 147-149, textfig. 1 [details] 
basis of record
Martinson, G. G. (1961). Mezozoiskie i Kaynozoyskie Molluski Kontinentalnykh Otlozheniy Sibirskoy Platformy, Zabaykalya i Mongolii [Mesozoic and Cenozoic Mollusca of the continental deposits of the Sibirican platform, Transbaikalia and Mongolia]. <em>Trudy Baikal'skoi Limnologicheskoi Stantsii [Transactions of Baikalian Limnologic Station].</em> 19:1–332 p., 26 pl. In Russian. page(s): 230, 231 [details] Available for editors 
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