Species: inusitatus WANG & ZHOU, 2017
Etymology: Latin, inusitatus, "unusual, new, different, unseen": refering to the unusual cranial articular facet of the caudal cervical vertebra.
Holotype: IVPP V22582
Locality: Dapingfang Town, Chaoyang County, Liaoning Province, northeastrn China.
Horizon: Jiufotang Formation.
Biostratigraphy:
Age: Aptian Stage, Upper Early Cretaceous Subepoch, Middle Gallic Epoch, Early Cretaceous.
Material: A disarticulated specimen missing parts of the skull, pygostyle, and pedal digits.
Referred material:
WANG & ZHOU, 2020
IVPP V23362: A disarticualted partially complete specimen.