Scientists have recently discovered that the small dinosaur named Cheng Hiu Ting Lung is the relative of Archaeopteryx and is very closely related to Archaeopteryx that lived in the late Jurassic  By analyzing the morphology of Archaeopteryx and comparing bird-like dinosaurs with The phylogenetic relationship of early birds was re-analyzed, and it was concluded that Archaeopteryx was not a bird, but a primitive Deinonychus
After the specimen of Archaeopteryx was named, it has always been considered the most primitive and oldest bird
 That is, Archaeopteryx is the ancestor of Velociraptor, not the ancestor of birds