Mesozoic Era

The Mesozoic Era is a geological era that spans from about 252 to 66 million years ago. It is divided into three periods: the Triassic, Jurassic, and Cretaceous periods. This era is often referred to as the "Age of Reptiles" because it was the time when dinosaurs roamed the Earth.

Key Events

During the Mesozoic Era, the supercontinent Pangaea began to break apart, leading to the formation of the separate continents we see today. This era also saw the evolution and diversification of many new plant and animal species, including the rise of the dinosaurs as the dominant terrestrial vertebrates.

Study Guide

1. Geological Time Span: The Mesozoic Era lasted from about 252 to 66 million years ago.
2. Periods: The Mesozoic Era is divided into three periods: the Triassic, Jurassic, and Cretaceous periods.
3. Continental Drift: The breakup of Pangaea and the formation of separate continents occurred during this era.
4. Dinosaur Dominance: The Mesozoic Era is often referred to as the "Age of Reptiles" due to the dominance of dinosaurs during this time.
5. Evolutionary Diversification: Many new plant and animal species evolved and diversified during the Mesozoic Era.

Studying the Mesozoic Era provides valuable insights into the Earth's geological history and the evolution of life on our planet.

[Mesozoic] Related Worksheets and Study Guides:

• Geologic timeScience • Eighth Grade