Genus: Sibirotitan AVERIANOV, IVANTSOV, SKUTCHAS, FAINGERTZ & LESHCHINSKIY, 2017
Etymology: In reference to Siberia, where the specimen was found, and Greek, titan, from the giants of Greek Myths.

Species: astrosacralis AVERIANOV, IVANTSOV, SKUTCHAS, FAINGERTZ & LESHCHINSKIY, 2017
Etymology: Greek, astro, "star," and Latin, os sacrum, "sacred bone," an allusion to the unusual configuration of sacral ribs which radiate, in dorsal view, from the middle of the sacrum as the rays of a star.

Holotype: M TGU 120/10-Sh1-22

Locality: Shestakovo 1 vertebrate locality, Kemerovo (Oblast) Province, Western Siberia, Asian Russia.

Horizon: Ilk Formation.

Biostratigraphy:

Age: Aptain Stage, Early Gallic Subepoch,Middle early Cretaceous Epoch, Early Cretaceous.

Material: Middle dorsal vertebra.

Referred specimen.

PM TGU 120/4-SH1-1: Middle cervical vertebra.

PM TGU 120/8-SH1-3: Posterior cervical vertebra.

PM TGU 120/8-Sh1-4: Posterior cervical vertebra.

PM TGU 120/8-Sh1-1: Fused sacrum and ilium.

PM TGU 16/0-81-88: Associated pedal elements.

LMCCE 105/4, 108/4-115/4: 9 isolated teeth.

AVERIANOV & LOPATIN, 2022

PIN no. 929/14: Fragmentary cervical vertebra.

AVERIANOV, PODLESNOV, SLOBODIN, SKUTSCHAS, FEOFANOVA & VLADIMIROVA, 2023

KOKM 26786: Anterior caudal vertebra.

 

AVERIANOV, PODLESNOV, SLOBODIN, SKUTSCHAS, FEOFANOVA & VLADIMIROVA, 2023

Locality: Shestakovo 3 vertebrate locality, Kemerovo (Oblast) Province, Western Siberia, Asian Russia.

Horizon: Ilk Formation.

Biostratigraphy:

Age: Aptain Stage, Early Gallic Subepoch,Middle early Cretaceous Epoch, Early Cretaceous.

Material:

KOKM 5142/1: Anterior caudal vertebra.

KOKM 5142/3, 5200/171: Middle caudal vertebrae.

KOKM 5142/4: Posterior vertebrae.

KOKM 5200/3, 25575, 5142/2, 5200/1 to 6, 186, 210: Chevrons.