Genus: Jiutaisaurus WU, DONG, SUN, LI & LI, 2006
Etymology: In reference to Jiutai, Jilin Province, China.

Species: xidiensis WU, DONG, SUN, LI & LI, 2006
Etymology: In reference to Xidi Village, Jilin Province, China.

Holotype: CAD-02

Locality: Xidi Villiage, Jiutai, Jilin Province, China.

Horizon: Quantou Formation.

Biostratigraphy:

Age: Early Cretaceous.

Material: 18 articulated anterior and middle caudal vertebrae.