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Back Blog The First Tyrannosaur - Guanlong
15 Mar 2012

The First Tyrannosaur - Guanlong

Tyrannosaurs were the poster theropods of the late Cretaceous period, right before the K/T extinction that rendered the dinosaurs extinct. In the last decade or so, a series of spectacular fossil finds has pushed the origin of tyrannosaurs all the way back to the late Jurassic period, 160 million years ago. That's where we find the 10-foot-long, 200-pound Guanlong ("emperor dragon"), which had a very un-tyrannosaur-like crest on its head and a coat of shiny feathers (which implies that all tyrannosaurs, even T. Rex, may have sported feathers at some point in their life cycles).

Last modified on Monday, 03 June 2013 21:16

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