Genus: Simbirskiasaurus OSTSCHEV & EFIMOV, 1985
Etymology: In reference to the city of Simbirsk (present day Ulanovsk) on the Volga River, Russia, Greek, sauros, “lizard”: Simbirsk lizard.

Species: birjukovi OSTSCHEV & EFIMOV, 1985
Etymology:
= Platypterygius birjukovi (OSTSCHEV & EFIMOV, 1985) ARKHANGEL’SKII, 1999

Holotype: YKM 65119 (incorrect SGU 104a/22 as per FISCHER, ARKHANGELSKY, NAISH, STENSHIN, USPENSKY & GODEFROIT, 2014)

Locality: Ulyanovsk area, probably right bank of Volga River, 25 km above the town of "Ul'yanovski, (new name for Simbirsk), north of Ulyanovsk and Polivno, Ulyanovsk Region, European Russia.

Horizon: Simbirskites clays.

Biostratigraphy:

Age: Hauterivian Stage, Lowermost Neocomian Subepoch, Lowermost Early Cretaceous Epoch, Early Cretaceous.

Material: Fragmentary skull and part of the vertebral column.
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