Traits taxon details
original description
(of Ptychopteria (Ptychopteria) neimongolensis S.-F. Liang, 1976 †) Liang, S.-F. (1976). Bivalvia. In: Geological Bureau of Nei Mongol Autonomous Region and Geological Institute of Northeast China (eds) Paleontological Atlas of North China, Volume Inner Mongolia, Part 1 (Paleozoic). Geological Publishing House, Beijing, pp. 306-317. page(s): 312, pl. 186, fig. 12 [details] Available for editors 
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