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.
The Cretaceous Period ended about 66 million years ago.
Liopleurodons lived in the seas during the Jurassic period, around 150 million years ago. They were large marine reptiles that were apex predators, known for their long, streamlined bodies and powerful jaws. They were found in a variety of locations, including what is now Europe.
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.
The Jurassic period ended 145+/- 4 million years ago. It took place between the Triassic period and the Cretaceous period.
Long ago or old
At the start of the Camrbian period, roughly 542 million years ago.
At the start of the Camrbian period, roughly 542 million years ago.