Genus: Shuangmiaosaurus YOU, LI & LI, 2003
Etymology: “Shuangmiao”, pinyin, menas ‘twin temples’, and is the name of the village where the specimens were excavated, and Greek, sauros, "lizard."

Species: gilmorei YOU, LI & LI, 2003
Etymology: In honor of C. W. Gilmore for his pioneering work on the Chinese hadrosauroid dinosaur Bactrosaurus in 1933.

Holotype: LPM0165

Locality: Near the Shuangmiao Village, Beipiao Basin, Liaoning Province, China.

Horizon: Sunjiawan Formation.


Age: Cenomanian Stage, Uppermiddle Gallic Subepoch, Lowermost Gulf Epoch, Middle Cretaceous-Turonian Stage, upper Gallic subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material: A complete left maxilla with partial articulated premaxilla and lacrimal.

Referred material:

LPM0166: An isolated complete left dentary.