Tyrannosaurus

Tyrannosaurus was a massive meat-eating dinosaur that ruled western North America around 69 to 66 million years ago. Unlike many of its relatives, this apex predator roamed across a vast territory on the ancient island continent of Laramidia. Its fossils tell us it was among the very last dinosaurs before the great extinction event.

• Tyrannosaurus rex is the most well-studied member of its dinosaur family.
• It lived during the late Cretaceous period's Maastrichtian age.
• Some fossils suggest tyrannosaurs may have appeared earlier in the Campanian age.