Species:
longimaxilla
O’CONNOR, WANG, & HU, 2016
Etymology: In reference to the elongate maxilla that distinguishes this taxon
from all other Jehol ornithuromorphs.
Holotype: IVPP V20284
ocality: Sihedang locality, Lingyuan City, wetern Liaoning Province, China.
Horizon: Yixian Formation, Upper Jehol Group.
Biostratigraphy:
Age: Early Cretaceous.
Material: A nearly complete adult individual with gastroliths, and trace impressions of integument around the neck.