Alexandrinia

Alexandrinia; Temporal range: Early Permian–Upper Permian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Ephemeroptera
Family:	Protereismatidae
Genus:	Alexandrinia; Sinitshenkova & Vassilenko, 2012
Species
	Alexandrinia directa (Carpenter, 1979); Alexandrinia gigantea Sinitshenkova & Vassilenko, 2012; Alexandrinia ipsa Sinitshenkova, 2013; Alexandrinia vitta Sinitshenkova, 2013;

Alexandrinia is an extinct genus of mayflies which existed in what is now Russia and the United States during the Permian period. It was described by N. D. Sinitshenkova and D. V. Vassilenko in 2012, and contains four species: A. gigantea, A. directa,[1] A. ipsa and A. vitta.[2]

References

N. D. Sinitshenkova & D. V. Vassilenko (2012). "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". Paleontological Journal. 46 (1): 61–65. doi:10.1134/S0031030112010121.
N. D. Sinitshenkova (2013). "New mayflies (Insecta: Ephemerida = Ephemeroptera) from the Upper Permian locality of Isady, Northern European Russia". Paleontological Journal. 47 (2): 162–165. doi:10.1134/S0031030113020135.

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[mayflies-1] N. D. Sinitshenkova & D. V. Vassilenko (2012). "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". Paleontological Journal. 46 (1): 61–65. doi:10.1134/S0031030112010121.

[mayfliesPJ2013Sinitshenkova2-2] N. D. Sinitshenkova (2013). "New mayflies (Insecta: Ephemerida = Ephemeroptera) from the Upper Permian locality of Isady, Northern European Russia". Paleontological Journal. 47 (2): 162–165. doi:10.1134/S0031030113020135.