Genus: Hongshanornis ZHOU & ZHANG, 2005
Etymology: In reference to the Hongshan culture, one of the earliest Chinese cultures mainly recorded in this region.

Species: longicresta ZHOU & ZHANG, 2005
Etymology: Latin cresta, refers to the raised crest of this bird.

Holotype: IVPP V14533

Locality: Shifo, Ningcheng, Inner Mongolia, China.

Horizon: Yixian Formation.

Biostratigraphy:

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

Material: Skull and skeleton.

Note: Feather impressions.

Referred material:

CHIAPPE, ZHAO, O'CONNOR, GAO, WANG, HABIB, MARUGAN-LOBON, MENG &CHENG, 2014

Locality: Dawangzhangzi locality, near Lingyuan, Liaoning Province, China.

Horizon: Yixian Formation.

Biostratigraphy:

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

Material:

DNHM D2945 (part), D2946 (counterpart): Skull and skeleton.

Note: Feather impressions.