Genus: Archaeorhynchus ZHOU & ZHANG, 2006b
Etymology: Greek, archae, "ancient" and Greek, rhynch, "beak": Ancient beak.

Species: spathula ZHOU & ZHANG, 2006b
Etymology: Greek, spatha, "any broad blade of wood or metal": 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:

FOTH, WANG, SPINDLER, LIN & YANG, 2021

Locality: Town of Lamadong, 21 km southwest of Jianchang, Jianchang County, Liaoning Province, China.

Horizon: Lower part of the Jiufotang Formation.

Biostratigraphy:

Age: Aptain Stage, Gallic Subepoch, Late Early Cretaceous Epoch, Late Early Cretaceous.

Material:

LNTU-WLMP-18: Skull and skeleton of a juvenile.

Note: With feather impressions, and intestinal contents; e.g. propagules of plants, round fruits, seeds, ovules or parts thereof.

 

WANG, O'CONNOR, MAINA, PAN, WANG, WANG, ZHENG & ZHOU, 2018

Locality: Northeastern China.

Horizon:

Biostratigraphy:

Age: Early Cretaceous.

Material:

STM7-11: Nearly complete specimen.

Note: With feathers, stomach contents ~100 gastroliths, and soft tissue impressions, possibly from the lungs.

 

WANG & ZHOU, 2016

Locality: Jingzhangzi Village, Linyuan City, Liaoning Province, North-eastern China.

Horizon: Yixian Formation.

Biostratigraphy:

Age: Early Cretaceous.

Material:

IVPP V20312: Fragmentary skull and skeleton.

 

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.