Cambrian to Permian
538-252 million years ago
The Cambrian through Permian periods make up the Paleozoic Era, a vast span of time during which life went from simple sea creatures to complex vertebrates that colonized the land. Dinosaurs hadn't appeared yet, but this era laid the groundwork for everything that followed.
Fun Facts
- âThe Paleozoic Era lasted nearly 300 million years, longer than the entire time dinosaurs existed.
- âDuring the Paleozoic, life went from the oceans onto land for the first time.
- âThe Paleozoic ended with the Permian extinction, the worst in Earth's history.
