This paper describes a new fossil from the Early Cretaceous Jiufotang Formation in Yixian County, western Liaoning. This new specimen has been well preserved, and moreover an entire Jinanichthys is hold in its mouth. Further study of Yanornis not only provides direct evidence for studying its living conditions, behaviors and prey styles, but also is of great value for discussing the reasons of the colony unusual death of the vertebrates of the Jehol Biota.