Traits taxon details
original description
(of Procopievskia khalfini Betekhtina, 1974 †) Betekhtina O.A. (1974). Biostratigrafiya i korrelyatsiya uglenosnykh otlozhenii pozdnego paleozoya po nemorskim dvustvorkam (Biostratigraphy and Correlation of the Carboniferous Beds of the Late Paleozoic Based on Nonmarine Bivalves). <em>Novosibirsk, Nauka Publishers.</em> 181 p. [in Russian]. page(s): 108, pl. 18, figs 4, 6 [details] Available for editors 
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