Traits taxon details
original description
(of Procopievskia naiadeformis Ragozin, 1938 †) Ragozin, L.A. (1938). O nekotorykh peletsipodakh iz uglenosnyy tolshchi Tungusskogo basseyna [On some bivalves from the coal-bearing strata of the Tunguska basin]. <em>Trudy Tomskogo Gosudarstvennogo Universiteta imeni V. V. Kuibysheva, Seriya G. Geologiya.</em> 93: 127-146. page(s): 128, pl. 1, figs 1-7; note: as "cf." [details] Available for editors 
basis of record
Betekhtina, O. A.; Tokareva, P. A. (1988). Nemorskiye dvustvorki [Non-marine bivalves]. In: Verkhnii paleozoi Angaridy. Fauna i flora [Upper Paleozoic of Angaraland. Fauna and Flora]. Nauka Publishers, Novosibirsk, pp. 59-71, 100-118. page(s): 161, pl. 10, fig. 6 [details] Available for editors 
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