Traits taxon details
original description
(of Procopievskia moderata Betekhtina, 1966 †) Betekhtina, O. A. (1966). Verkhnepaleozoiskie nemorskie peletsipody (dvustvorki) Sibiri i vostochnogo Kazakhstana [Upper Paleozoic non-marine Pelecypoda (bivalves) of Siberia and eastern Kazakhstan]. Nauka, Moskva, 220 pp. page(s): 147-148, pl. 7, figs 8, 9, pl. 13, figs 3, 6, pl. 14, fig. 9, pl. 16, fig. 4 [details] Available for editors 
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