Genus: Dilong XU, NORELL, KUANG, WANG, ZHAO & JIA, 2004
Etymology: The generic name is derived from Chinese di, "emperor" and Chines, long, "dragon": Emperor dragon.

Species: paradoxus XU, NORELL, KUANG, WANG, ZHAO & JIA, 2004
Etymology: The specific name referes to the surprising characters of the animal.

Holotype: IVPP V14243

Locality: Lujiatun, Shangyuan, Beipiao, western Liaoning Provine, China.

Horizon: Horizon 1, Lower part of the Yixian Formation, Jehol Group.

Biostratigraphy: Psittacosaurus Fauna, Confuciusornis Avifauna.

Age: Valanginian Stage, Upper Neocomian Subepoch, Early Early Cretaceous Epoch, Early Cretaceous.

Material: A semi-articulated skeleton including an almost complete skull.

SKull of IVOO V14243.

Reconstruction of the skeleton of IVPP V11579.

A) IVPP V14242: Dentary tooth; B) IVPP V11579: Premaxilla tooth; C) IVPP V11579: Reconstruction of manus.

A) IVPP V14242: Cervical vertebra; B) IVPP V11579: Left postorbital; C) IVPP V11579: Right squamosal; D) IVPP V11579: Fragmentry Left Ischium; E) IVPP V11579; Left metatarsals; F) IVPP V11579: Distal caudal vertebrae associated with branched integumentary structures (Proto-feathers?)

Referred material:

IVPP V14242: A nearly complete skull and associated presacral vertebrae.

TNP01109: A partial skull.

 

Locality: Zhangjiagou, Beipiao, western Liaoning Province, China.

Horizon: Horizon 1, Lower part of the Yixian Formation, Jehol Group.

Biostratigraphy: Psittacosaurus Fauna, Confuciusornis Avifauna.

Age: Valanginian Stage, Upper Neocomian Subepoch, Early Early Cretaceous Epoch, Early Cretaceous.

Material:

IVPP V11579: Nearly complete specimen.
Note: Has 'proto feathers' along it's tail.
Note: This may be a different new genus.