Genus: Tianzhenosaurus PANG & CHENG, 1998
Etymology: In reference to Tianzhen County, and Greek, Sauros, :”lizard”: Tianzhen lizard.

Species: youngi PANG & CHENG, 1998
Etymology: In honor of Professor C. C. Young, the founder of Vertebrate Paleontology in China, for memorial of his 100th birthday.

Holotype: HBV-10001

Locality: About 270 km northwest of Beijing, Wu Valley, Kangdailiang near Zhaojiagou Village, Tianzhen County, Shansi (Shanxi) Province, China.

Horizon: Huiquanpu Formation.

Biostratigraphy:

Age: Late Cretaceous.

Material: A nearly complete skull.

Paratypes:

HBV-10002: Incomplete mandible.

HBVP10003: A nearly complete postcranial skeleton.