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.