Since then, the body of evidence has grown quite a lot. In China, there are fossils of Velociraptors and other small theropods that have feathery imprints along the neck, skull, and arms. These feathers resemble pin feathers on a young bird, however; they are not fully developed feathers, like those you'd see on a bird. Also, none of these feathers were much older that Archaeopteryx itself. This was a time paradox that needed resolution before paleontologists could definitely say that birds evolved from dinosaurs.
As paleontologist Michael Benton puts it, "Now these fantastic new discoveries by Professor Xu prove that [feathers arouse before Archaeopteryx appears in the fossil record] once and for all." It is an exciting, and fairly conclusive, piece of evidence, showing that birds truly are the dinosaurs among us.
Credit: BBC News-Dinosaurs had 'earliest feathers'
Archaeopteryx Image Credit: Wyoming Dinosaur Center