In this article they discuss the findings of different species of Tyrannosaurus dinosaurs that are all related to the T-Rex, but have different variations and characteristics of fossils that have been found in different places throughout the world. They found a Tyrannosaurus related to T-rex in China while excavating. This dinosaur was much smaller than T-rex and had an interestingly long head length comparatively. This struck many questions as to the origination of T-rex and its ancestry. Recounting the Tyrannosaur’s history the article states “Mounting evidence indicates that the group underwent considerable diversification long before the likes of Tarbosaurus and T. rex appeared.” (Brusatte) They figure 170 million years ago when the
