What is "changyuraptor"

'Changyuraptor ' is a genus of "four-winged", predatory dinosaurs. It is known from a single fossil specimen representing the species Changyuraptor yangi, which was discovered from Early Cretaceous (125 million year old) deposits in Liaoning Province, China. C. yangi belongs to the group of dromaeosaurid theropod dinosaurs called the Microraptorinae.

At the time of its discovery, C. yangi was the largest four-winged dinosaur known.