Guanlong, meaning “crown dragon” is a genus of tyrannosaurid dinosaur from the Oxfordian stage of the Late Jurassic Period (160 million years ago). It was discovered in the Dzungaria area of China by scientists from George Washington University, and named by Xu Xing in 2006. “Crown dragon” refers to its head crest. Guanlong is only known from two specimens, both nearly complete.

This bipedal dinosaur was about 9.8 feet in length. It shared many traits with its descendants, and also had some unusual ones, like the large crest on its head. Guanlong had three long fingers on its hands, a feature not seen in later tyrannosaurids. Guanlong resembled its close relative Dilong, and like Dilong may have been covered in a coat of primitive feathers.

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