Genus: Aberratidontus GONG, HOU & WANG, 2004
Etymology: Latin, aberratio, "relief" and Greek, dontus, "teeth"; refers to the features of the teeth.

Species: wui GONG, HOU & WANG, 2004
Etymology: In honor of Professor Wu Qicheng, who is devoted to the paleontological research of Liaoning Province.

Holotype: LHV0001a, b

Locality: Shangheshou, Chaoyang County, Liaoning Province, China.

Horizon: Horizon IV, Jiufotang Formation, Upper Jehol Group.

Biostratigraphy: Pistacosaurus fauna, Cathayornis-Chaoyanga Avifauna.

Age: Barremian Stage, Lower Gallic Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.

Material: Nearly complete specimen.

Skeleton.

Skull ofAberratidontus wui Holotype: LHV0001, after Gong, et al, (2004);  A) Skull after Gong, Hou, and Wang, 2004 and B) new reconstruction.

Skeleton ofAberratidontus wui Holotype: LHV0001, after Gong, et al, (2004);  A) skeleton as preserved, and B, C) new reconstruction of skeleton, B) lateral and C) dorsal view.