Jeholornis (meaning "Jehol bird") is a
genus of
avialans that lived between approximately 122 and 120 million years ago during the early
Cretaceous Period in
China. Fossil
Jeholornis were first discovered in the
Jiufotang Formation in
Hebei Province, China (in what was previously
Rehe Province, also known as Jehol—hence the name) and additional specimens have been found in the older
Yixian Formation.