The latest record of mayflies of the family protereismatidae sellards (Ephemerida = Ephemeroptera) and a new species of the family misthodotidae in the Upper Permian of Europe
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- Sinitshenkova, N.D. & Vassilenko, D.V. Paleontol. J. (2012) 46: 61. doi:10.1134/S0031030112010121
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A new mayfly genus and species, Alexandrinia gigantea gen. et sp. nov., is described in the family Protereismatidae from the Upper Permian locality of Isady (Severodvinian Stage, Poldarsa Formation). Protereisma directum Carpenter, 1979, known from the Early Permian of Oklahoma, United States, is transferred to this new genus. Another new species, Misthodotes tshernovae sp. nov., is described in the family Misthodotidae.