MASATO HATTORI / SCIENCE PHOTO LIBRARY MASATO HATTORI / SCIENCE PHOTO LIBRARY
Tyrannosaurus dinosaur. Computer illustration of a Tyrannosaurus sp. dinosaur (left) with a smaller dinosaur (right). Tyrannosaurs dinosaurs were carnivorous theropods that lived around 68 to 66 million years ago, during the Maastrichtian age of the Late Cretaceous Period. They were found throughout what is now western North America, on what was then an island continent known as Laramidia.
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