This is Jinfengopteryx elegans, a troodontid from the Qiaotou Formation of China. Jinfengopteryx was a very small (55 cm long) feathered theropod related to Troodon. This animal's taxonomy is slightly uncertain - originally described as an archaeopterygid, it's now thought to belong to Troodontidae based on features like the enlarged second toe and specifics of the teeth.