Paleozoic Era

The Paleozoic Era is a geological era that lasted from about 541 to 252 million years ago. It is divided into six periods: Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian.

Key Events

• Evolution of early fish and marine invertebrates during the Cambrian period.
• Great Ordovician Biodiversification Event (GOBE) leading to a rapid increase in marine diversity.
• First plants on land in the Silurian period.
• Age of Fishes during the Devonian period, with diverse fish species evolving.
• Formation of coal deposits during the Carboniferous period.
• Mass extinction at the end of the Permian period, wiping out 90% of marine species and 70% of terrestrial vertebrate species.

Study Tips

1. Make a timeline of the Paleozoic Era, including the major events and important species that evolved during each period.
2. Study the different environmental changes that occurred during each period and how they influenced the evolution of life on Earth.
3. Learn about the key fossil groups and how they contribute to our understanding of the Paleozoic Era.
4. Understand the concept of mass extinctions and their impact on the diversity of life throughout the Paleozoic Era.
5. Use visuals such as diagrams, illustrations, and maps to reinforce your understanding of the geological and biological changes that occurred during the Paleozoic Era.

[Paleozoic] Related Worksheets and Study Guides:

• Geologic timeScience • Eighth Grade