Genus: Yuanansaurus LI, 2003
Etymology: In reference to Yuanan County, Hubei Province Province, China, and Greek, sauros, "lizard."

Species: yingzishanensis LI, 2003
Etymology:
= Yuanansaurus yingzishanenisi LI, 2003 (sic)

Holotype:

Locality: Yuanan County, Hubei Province Province, China.

Horizon: Lower Jialinjan Formation.

Biostratigraphy:

Age: Olenekian, Upper Spathian Stage, Upper Scythian Epoch, Early Triassic

Material: Fragmentary skull and skeleton.