No. The Precambrian Era extended from 4.5 billion years ago to 542 million years ago. The Mesozoic Era lasted from 251 million years ago to 65 million years ago. The Paleozoic Era came in between the two.
The Paleozoic era was from 540 million years ago to about 245 million years ago. After that came the Mesozoic era, and that lasted from the end of the Paleozoic to 65 million years ago, when the earth entered the Cenozoic era.
The prehistoric cavemen lived sometime between two million and two thousand years ago. This was during the Paleolithic Era extending from two million to 10,000 B.C.
Pangea first separated into two large land masses in Mesozoic Era(from 245 to 64 million years ago) or in Triassic Period.Pangaea broke into Gondwana and Laurasia approx. 180 million years ago.
When those two continients split 65 million years ago what were formed
when two continentents split 65 million years ago what was formed
It is surmised that the supercontinent of Pangea formed during the Early Permian Period about 270 million years ago. It began breaking up during the Jurassic Period.
When those two continients split 65 million years ago what were formed
About two million years ago
they lived 1.4 million years ago or 1.6 or 2.0 million years ago. I'm doing more researching to see which one it is exactly.
Pangea began to drift apart about 200 million years ago. Pangea split into two smaller continents: Gondwana and Laurasia. These continents lasted from about 200 million years ago to 100 million years ago.
No, vertebra life has not existed for more than half a billion to a billion years ago. Dinosaurs first appeared about 230 million years ago and died out 65.5 million years ago.