Traits name details
original description
Liang, S.-F. (1980). Mollusca. In: Shenyang Institute of Geology and Mineral Resources (eds) Paleontological Atlas of Northeast China, 1. Paleozoic volume. Geological Publishing House, Beijing, pp. 429-484. page(s): 446, pl. 181, fig. 5 [details] Available for editors 
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