Genus: Archaeorhynchus ZHOU & ZHANG, 2006b
Etymology: Greek, archae, 'ancient', and Greek, rhynch, 'beak': Ancient beak.
Species: spathula ZHOU & ZHANG, 2006b
Etymology: Greek, spatha, indicating the spathulate dentary.
Holotype: IVPP V14287
Locality: Yixian, Liaoning Province, China.
Horizon: Yixian Formation.
Biostratigraphy:
Age: Early Cretaceous.
Material: Nearly complete skeleton of a subadult.
Note: With feather impressions.
Note: With 3 dozen gastroliths.
Referred material:
ZHOU, ZHOU & O'CONNOR, 2013
Locality: Jianchang, Liaoning Province, China.
Horizon: Jiufotang Formation.
Biostratigraphy:
Age: Barremian Stage, Lower Gallic Subepoch, Middle Early Cretaceous Epoch, Early Cretaceous.
Material:
IVPP V17075: Skull and skeleton. Note: With gastroliths.
IVPP V17091: Skull, skeleton with feather impressions: Note: With gastroliths.