- Name Means: King of the Tyrant Lizards
- Period: Late Cretaceous – 65 million years ago
- Where: North America (Colorado, Montana, New Mexico, Wyoming, Alberta)
As the last great carnivore of the Cretaceous Period, Tyrannnosaurus rex was an efficient killer stalking the North American landscape. With a specially strengthened nose structure, it could deliver bone splintering, crushing bites to both prey and combatants, including others of its own species. The strength of the Tyrannosaurus rex’s lower jaw could deliver 10,000 newtons of bite force-the equivalent power needed to lift a semi-trailer. Although puny looking, the T. Rex forelimb bones exhibit extremely thick cortical bone, indicating that they were developed to withstand heavy loads.
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