A new fish species of the genus Isadia (Actinopterygii, Eurynotoidiformes) from the new locality on the Malaya Northern Dvina river (terminal Permian, Vologda Region)

2015/11/01 by A. V. Minikh, Alla V. Minikh, M. P. Arefiev +2 · 2 citations
Earth and Planetary Sciences · Environmental Science · #Actinopterygii #Biology #Environmental and Biological Research in Conflict Zones #Fish <Actinopterygii> #Fishery #Genus #Geography #Geological Studies and Exploration #Geology #Locality #Paleontology #Paleontology and Evolutionary Biology #Permian #Type locality #Zoology

paper · doi:10.1134/s0031030115060076

openalex publication_date 2015/11/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

A new rich Upper Permian locality of plants, ostracodes, bivalves, fishes, and tetrapods was founded in the middle part of the Komaritsa Member of the Salarevo Formation on the Malaya Northern Dvina River. The new locality is confined to the lower part of the terminal Permian Gnathorhiza otschevi – Mutovinia sennikovi Fish Zone. Based on new materials of the actinopterygian fishes from this locality, the genus Isadia is revised, diagnoses of the species included in it are improved, and a new species, Isadia arefievi sp. nov. is described.

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