145 million years ago.
Dinosaurs lived in the Jurassic Period over 145 to 200 million years ago. Dinosaurs became extinct during the Triassic period.
jurasic park
Jurasic period
upper jurasic park
The Jurassic Period is defined as the period of time between 200 million years ago to 145 million years ago.
Tyrannosaurus rex lived between 68 and 65.5 million years ago. That was during the Maastrichtian stage, which was the last stage of the Cretaceous period. The Cretaceous period was the last period of the Mesozoic era.
144 to 65 million years ago
The Jurassic period ended 145+/- 4 million years ago. It took place between the Triassic period and the Cretaceous period.
Liopleurodon lived 160-150 million years ago.
Long ago or old
An early Jurasic dinosaur
The Devonian Period lasted from about 395 to 345 million years ago. It is part of the Paleozoic Era.