yi qi is thought to have lived 160 million years ago during the late jurassic .
the dinosaur has an unusual bone sticking out of its wrist and had a membrane that covered it to form a wing much like that of a modern bat .
scientists say it is unlike any other dinosaur , which evolved into birds , and may have glided or even been able to fly by flapping over short distances .
the fossil was discovered by a farmer in qinglong county in north china .