Want this question answered?
Yes. The first era was the precambrian era followed by the paleozoic era then the mesozoic era than the Cenozoic era.
No, the most well-known Ice Age was in the Cenozoic Era, during the Pleistocene epoch.
That is easy, the first is precambrian time, next you get the paleozoic era, which has Cambrian, ordovician, silurian, denovonian, carbonferious periods, Next you get the mesozoic era which contains the next three, which are triassic, jurrasic, and cretacous periods. Lasty you get the Cenozoic era which contains the last two which are the tertiary, and the quaternary!
the formation of the ozone layer. [apex]
Several periods of mass extinction
The formation of the ozone layer
A moon landing
It occurred between the Cretaceous period at the end of the Mesozoic era and the Tertiary period at the beginning of the Cenozoic era. It's mostly known for wiping out the dinosaurs. Any species that weighed over 100 kg vanished (60-80% of all species).
Western
mesozoic
The Mesozoic era took place 252. 17 million to 66 million years ago. The three major periods that make up the Mesozoic era are the Triassic, the Jurassic, and the Cretaceous periods.
Several periods of mass extinction