Guanlong wucaii, like many of the Chinese dinosaurs, has a very poetic name - "crowned dragon of five colors" - the five colors being the banded sandstone of Wucaiwan, similar to the four corners region of the US' Great Basin desert. Guanlong is a primitive tyrannosaurid from the late Jurassic, and unlike later tyrannosaurs, it has long, robust arms and hands and a tall crest over the top of its relatively slim head. Only two skeletons have been found, but one was a juvenile, with a much shorter crest over the nose, indicating that as individuals of this species matured, the crest grew taller as well as back toward the eyes. While neither skeleton preserved feathers, it is likely that like other known primitive tyrannosauroid dinosaurs, Guanlong would have had a coat of simple hairlike feathers.
I know, I know, I missed yesterday. Somehow on my travels I obtained a strain of Norovirus, or something similar. I'm feeling more functional today, thankfully.