New mayflies (Insecta: Ephemerida = Ephemeroptera) from the Upper Permian locality of Isady, Northern European Russia
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- Sinitshenkova, N.D. Paleontol. J. (2013) 47: 162. doi:10.1134/S0031030113020135
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Two new species of the family Protereismatidae, Alexandrinia vitta sp. nov. and A. ipsa sp. nov., are described from the Upper Permian locality of Isady (Severodvinian Stage, Poldarsa Formation). The third new species Misthodotes dubius sp. nov., belongs to the family Misthodotidae.