Species: aquilonia GAO & HUO, 1995
Etymology: Latin, aquilonius, "northern," in reference to the northern continental occurrence of this early iguanid.

Holotype: IVPP V10030

Locality: Bayan Mandahu, Urad Houqi, Inner Mongolia, China.

Horizon: Djadochta Formation.

Biostratigraphy:

Age: Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Disarticulated skull elements and mandible, vertebral column (15 dorsals, 2 sacrals, 2 1/2 caudals, nearly complete pelvis, and right hindlimb.

Referred material:

GAO & HOU, 1996

IVPP V10072: Incomplete skull with mandibles.