Triassic Period

The Triassic Period is a geologic time period that occurred approximately 251 to 201 million years ago. It is the first period of the Mesozoic Era, and it followed the Permian Period and preceded the Jurassic Period.

Key Events and Features of the Triassic Period:

• Pangaea: During the Triassic, the supercontinent Pangaea began to break apart, leading to the formation of separate landmasses.
• Life Forms: The Triassic saw the diversification of early reptiles, including the first dinosaurs, as well as the emergence of the first mammals and flying reptiles (pterosaurs).
• Extinction Event: The end of the Triassic was marked by a mass extinction event that led to the decline of many marine and terrestrial species, paving the way for the rise of the dinosaurs in the Jurassic Period.

Study Guide:

1. What is the timeframe of the Triassic Period?
2. What major geological event occurred during the Triassic Period?
3. Which group of animals emerged and diversified during the Triassic?
4. What significant event marked the end of the Triassic Period?
5. Discuss the significance of the Triassic in the context of Earth's history.

Studying the Triassic Period provides valuable insights into the evolution of life on Earth and the geological processes that shaped our planet during this time.

[Triassic] Related Worksheets and Study Guides:

• Geologic timeScience • Eighth Grade