How long did the T Rex live on Earth?

Tyrannosaurus Rex Lived in the Late Cretaceous Period. Against popular belief the Tyrannosaurus Rex did not walk the Earth during the Jurassic period; this massive king of the dinosaurs actually roamed the Earth towards the end of all dinosaurs – during the late cretaceous period. read more

If you think of something like an eagle or raven, they live for 20-30 years, and that would probably have been the lifespan of a T. rex." The largest and best-preserved T. rex, in the Field Museum of Chicago, is thought to have lived to almost 29 years, although it would have achieved adult size after 20 years. read more

An individual T-rex had a lifespan of just under 30 years. The T-rex species appeared about 68 million years ago (mya) and lasted until 65.5 mya. read more