Species: longidigitus JI, 1998
Etymology:

Holotype: GMV2127

Locality: Sihetun, Shangyuan, Beipiao City, 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: Middle dorsal, sacral, and caudal vertebrae, ribs, pelvis and hind legs.

Referred material:

IVPP V14295: Posterior half of postcranial skeleton.

 

AZUMA, 2005

Locality: Western Liaoning Province, China.

Horizon: Yixian Formation, Jehol Group.

Biostratigraphy: Psittacosaurus Fauna, Confuciusornis Avifauna.

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

Material:

IG-42:

EVANS & WANG, 2005, EVANS, WANG & JONES, 2007

Locality: Lujiatun, Beipiao City, Shangyuan, Liaoning Province, China.

Horizon: LowerYixian Formation.

Biostratigraphy:

Age: Upper Hauterivian Stage, Late Neocomian subepoch-Lower Barremian Stage, Early Gallic subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material:

IVPP V13282: Skull of an adult.

IVPP V14234: Block with at least 16 associated skeletons ranging from juvenile to adult.

 

Locality: Hejiaxin, Yixian County, Liaoning Province, China.

Horizon: LowerYixian Formation.

Biostratigraphy:

Age: Barremian Stage, Early Gallic subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material:

IVPP V13281: Skull and skeleton of a subadult.

 

Locality: Not given, Liaoning Province, China.

Horizon:

Biostratigraphy:

Age: Upper Hauterivian Stage, Late Neocomian subepoch-Lower Barremian Stage, Early Gallic subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material:

IVPP V12345: Part and counterpart of a skeleton.

IVPP V12643: Part and counterpart of poorly presrved associated skeleton.

IVPP V13864: Part and counterpart of an associated skeleton.

IVPP V14069: Skull of an immature individual.

IVPP V14262: Poorly preserved associated skeleton.

 

JI & JI, 2004

Locality: Dawangzhangzi, Lingyuan, 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:

IG-02-7-26-2: Postcranial skeleton.

EVANS & WANG, 2005

IVPP V12586: Posterior skeleton.
Note: with skin traces.

IVPP V13865: Part and counterpart of a nearly complete skeleton.
Note: Body and tail scales.