O’CONNOR, STIDHAM, HARRIS, LAMANNA, BAILLEUL, HU, WANG & YOU, 2022

Locality: Changman township, Yuman City, Jiuquan area, , Changma Prefecture,Yumen Municipality, northwestern Kansu (Gansu) Province, China.

Horizon: Xiagou Formation.

Biostratigraphy:

Age: Lower Aptian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

Ornithuromorpha indet A

IVPP V26194: A skull preserving the most caudal poriton of the rostrum and the orbital and postorbital regeions in articulation wiht 8 complte cervical vertebrae and the cranial portion of anterior.

Ornithuromorpha indet B

IVPP V26195: The caudal portion of a braincase with the interior surface exposed such that the raised surface of the laybrinth is visible, preserved in articualtion with 8 well preserved, ventrally exposed cervical vertebrae in cluding the atlas and axis, plus the cranial portion of the 9th cervical.

Ornithuromorpha indet C

IVPP 26196: The orbital and postorbital region of the skull (including caudal poritosn of the mandible) in articulation with 15 vertebrae exposed largely in right lateral view.

WANG, SERIO, ZOU, ZHAO, YOU, ZHOU & O'CONNOR, 2026

IVPP V34827: Pellet with a fragmentary ornithuromorph skeleton.

Note: Suggested pellet from Jian changmaensis.

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PEREZ-PUEYO, PUERTOLAS-PASCULA, MORENO-AZANZA, CRUZADO-CABALLERO, GASCA, NUNEX-LAHUERTA & CANUDO, 2021

Locality: 'Dolor' fossil site, north of the village of Serraduy, Beranuy municipality, Huesca, Southern Pyrenees, Northeast Spain.

Horizon: Middle part of the 'Lower Red Garumnian.'

Biostratigraphy:

Age: Uppermost Maastrichtian Stage, Uppermost Senonian Subepoch, Uppermost Gulf Epoch, Latest Cretaceous.

Material:

MPZ 2019/264: Fragmentary cervical vertebra.

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YOU, ATTERHOLT, O'CONNOR, HARRIS, LAMANNA & LI, 2010

Locality: Northwest of the village of Chenjiawan, Changma Prefecture,Yumen Municipality, Kansu (Gansu) Province, China.

Horizon: Middle Xiagou Formation.

Biostratigraphy:

Age: Aptian-Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

FRDC-05-CM-021: A complete associated sternum and furcula, with sternal ribs and possible thoracic rib fragments.