Genus: Qianxisaurus CHENG, WU, SATO & SHAN, 2012
Etymology: Chinese pingying, 'Qianx', meaing the western part of the Guizhou Province, in which the fossil was located, and Greek, sauros, 'lizard'.

Species: chajiangensis CHENG, WU, SATO & SHAN, 2012
Etymology: In reference to Chajinang near which the speicmen was collected.

Holotype: NMNS-KIKO-F044630

Locality: Chajiang, near the Huangnihe River, Xingyi, Guizhou Province, China.

Horizon: Zhuganpo Member, Falang Formation.

Biostratigraphy:

Age: Ladinian Stage, Upper Mid-Triassic Epoch, Late Middle Triassic.

Material: Skull and nearly complete skeleton.