Dinosaurs flourished during the Jurassic Period (199.6-145.5 million years ago) but T-Rex did not exist during that Period. T-Rex did not evolve until the Cretaceous Period (145.5-65.5 million years ago).
(The Great Courses – A New History of Life)
Dinosaurs flourished during the Jurassic Period (199.6-145.5 million years ago) but T-Rex did not exist during that Period. T-Rex did not evolve until the Cretaceous Period (145.5-65.5 million years ago).
(The Great Courses – A New History of Life)