Genus: Liaoningosaurus XU, WANG & YOU, 2001
Etymology: In reference ot Liaoning Province, and Greek, sauros, ‘lizard’: Liaoning Lizard.

Species: paradoxus XU, WANG & YOU, 2001
Etymology: Refers to the surprising characteristics of this animal.

Holotype: IVPP V12560

Locality: WanJiagou, Yixian, Liaoning Province, China.

Horizon: Yixian Formation.

Biostratigraphy:

Age: Aptian Stage, Middle Gallic Subepoch, Late Early Cretaceous Epoch, Laet Early Cretaceous.

Material: Fragmentary skull and fragmentary skeleton of a juvenile.
Note: Has a shell-like ventral armor.

Referred material:

JI, WU, CHENG, TEN, WANG, & JI, 2016

Locality: Dawangzhangzi Village, Lingyuan County, west edge of Liaoning Province, China.

Horizon: Yixian Formation.

Biostratigraphy:

Age: Aptian Stage, Middle Gallic Subepoch, Late Early Cretaceous Epoch, Laet Early Cretaceous.

Material:

XHPM-1206: Skull and nearly complete specimen.

Note: Indication this ankylosaur ate fish.