Some exceptionally well preserved dinosaur fossils uncovered in north-eastern China display the earliest feathers known — 10 million years older than Archaeopteryx:
One of the new dinosaur specimens, named Anchiornis huxleyi, is spectacular in its preservation.It has extensive plumage covering its arms and tail, and also its feet — a “four-winged” arrangement, says Professor Xu from the Chinese Academy of Science in Beijing.