Genus: Eoazhdarcho LU & JI, 2005b
Etymology: Greek, Eo-, "beginning" + azhdarchid; early form of azhdarchid.

Species: liaoxiensis LU & JI, 2005b
Etymology: In reference to the fossil locality, Liaoxi, the western part of Liaoning Province, China.

Holotype: GMN-03-11-002

Locality: Liaoxi, Chaoyang City, Chaoyang County, Liaoning Province, China.

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

Biostratigraphy: Psittacosaurus fauna, Cathayornis-Chaoyanga Avifauna.

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

Material: Incomplete skeleton and lower jaw.