The answer is NOOOO!!!! It is not the longest Era!!! The Precambrian consisted of the Archean and Proterozoic Eras which each pull roughly 2 billion years of geologic time making up the first 4 billion years of Earth. The Archean from 4.5 Billion Years Ago to about 2.5 BYA and the Proterozoic from 2.5 BYA to about 570 MYA. The Paleozoic which preceded the Mesozoic lasted about 345 Million years (570 MYA- 225 MYA) and the Mesozoic lasted about 215 Million years (225 MYA- 65 MYA).
Paleozoic, Precambrian, Mesozoic or Cenozoic. It is Precambrian
Mesozoic Era
C - PALEOZOIC ERA
The Paleozoic precedes the Mesozoic. And our current era, the Cenozoic, follows the Mesozoic.
The Paleozoic
The Mesozoic Era is known as the Age of Reptiles.
It really wasn't an era. An Era was a much longer period of time. It was called the "Jurassic Period".
The dinosaurs lived in the Mesozoic Era, which includes the Triassic, Jurassic, and Cretaceous periods. The first dinosaurs appeared in the late Triassic and went extinct at the end of the Cretaceous.
The Paleozoic precedes the Mesozoic. And our current era, the Cenozoic, follows the Mesozoic.
Dinosaurs dominated over the mesozoic era.
Mesozoic Era
Dragonflies lived in the Mesozoic era. Mesozoic means middle life.