Genus: Alexeyisaurus SENNIKOV & ARKHANGELSKY, 2010
Etymology: In memory of the amateur paleontologist Aleksei Savvich Arkhangelsky, who collected many unique paleontological specimens in the Volga Region, and Greek, sauros, 'lizard'.

Species: karnoushenkoi SENNIKOV & ARKANGELSKY, 2010
Etymology: In honor of E. P. Karnoushenko, who transferred the skeleton described to Saratove State University.

Holotype: SGU, no. 104a/36

Locality: Franz Josef Land, Island of Wilczek Land, north of Cape Ganza, Ganza Anticline, Artic Russia.

Horizon: Wilczek Formation.

Biostratigraphy:

Age: Lower-Middle Norian Stage, Late Triassic Epoch, Late Triassic.

Material: Unidentifiable fragments of skull bones, incomplete vertebral column, ribs, coracoid, pubis, humerus and femur.