Jurassic Period

The Jurassic Period, which occurred approximately 201 to 145 million years ago, is the middle period of the Mesozoic Era. It is named after the Jura Mountains located between France and Switzerland where rocks from this period were first studied. The Jurassic Period is known for its diverse and iconic dinosaurs, including the famous long-necked sauropods and vicious theropods.

Geology of the Jurassic Period

During the Jurassic Period, the supercontinent Pangaea began to break apart, leading to the formation of the Atlantic Ocean. The shifting of tectonic plates also resulted in the formation of new mountain ranges and ocean basins. The climate was generally warm and humid, and lush vegetation covered much of the land.

Life during the Jurassic Period

The Jurassic Period was a time of great diversification for many groups of organisms, including dinosaurs, marine reptiles, and early mammals. In addition to dinosaurs, the oceans teemed with marine reptiles such as ichthyosaurs, plesiosaurs, and ammonites. The first birds also appeared during this time.

Study Guide for the Jurassic Period

1. What is the Jurassic Period?
2. When did the Jurassic Period occur?
3. What significant geological events occurred during the Jurassic Period?
4. Describe the climate during the Jurassic Period.
5. What are some iconic dinosaurs from the Jurassic Period?
6. What other groups of organisms thrived during the Jurassic Period?
7. How did the Jurassic Period contribute to the diversification of life on Earth?

[Jurassic] Related Worksheets and Study Guides:

• Geologic timeScience • Eighth Grade