MolluscaBase name details
Procopievskia sygmoidea (Khalfin, 1950) †
1645472 (urn:lsid:marinespecies.org:taxname:1645472)
unaccepted
Species
fossil only
(of Anthraconauta (Prokopievskia) gigantea var. sygmoidea Khalfin, 1950 †) Khalfin L.L. (1950). The lamellibranchiate mollusks of the coal-bearing deposits of Kuzbass [= Пластинчатожаберные моллюски угленосных отложений Кузбасса]. <em>Trudy Gorno-Geologicheskogo Instituta Zapadno-Sibirskogo Filiala AN SSSR.</em> 9: 1-159. [In Russian].
page(s): 74, pl. 8, fig. 5 [details] Available for editors
[request]
page(s): 74, pl. 8, fig. 5 [details] Available for editors

MolluscaBase eds. (2024). MolluscaBase. Procopievskia sygmoidea (Khalfin, 1950) †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1645472 on 2025-04-06
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original description
(of Anthraconauta (Prokopievskia) gigantea var. sygmoidea Khalfin, 1950 †) Khalfin L.L. (1950). The lamellibranchiate mollusks of the coal-bearing deposits of Kuzbass [= Пластинчатожаберные моллюски угленосных отложений Кузбасса]. <em>Trudy Gorno-Geologicheskogo Instituta Zapadno-Sibirskogo Filiala AN SSSR.</em> 9: 1-159. [In Russian].
page(s): 74, pl. 8, fig. 5 [details] Available for editors
[request]
basis of record 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): 106 [details] Available for editors
[request]
page(s): 74, pl. 8, fig. 5 [details] Available for editors

basis of record 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): 106 [details] Available for editors
