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. That is, Archaeopteryx is the ancestor of Velociraptor, not the ancestor of birds.
The question 'Deinonychus is a type of dinosaur closely related to birds' best questions the above conjecture.