File:Tianyuraptor skull.png

Summary
Skull and mandible of Tianyuraptor in lateral view.

Source: Zheng, X., Xu, X., You, H., Zhao, Q. and Dong, Z. (2009). "A short-armed dromaeosaurid from the Jehol Group of China with implications for early dromaeosaurid evolution." Proceedings of the Royal Society B, published online before print August 19, 2009.