Feathered dinosaur
dinosaurs possessing feathers / From Wikipedia, the free encyclopedia
A feathered dinosaur is a dinosaur with feathers. It is now thought that all coelurosaurs, and perhaps all theropods, had feathers.
The possibility that dinosaurs are closely related to birds raised the possibility of feathers. Fossils of Archaeopteryx include well-preserved feathers, but it was not until the early 1990s that clearly non-bird dinosaur fossils were discovered with preserved feathers. About 40 genera of theropods are now known to be feathered.
Most of these fossils come from the Yixian formation in China. The fossil feathers of one specimen, Shuvuuia deserti, have been tested positive for beta-keratin in immunological tests.[1] This is the main protein in bird feathers.