The Paleozoic Era occurred from about 542 million years ago to 251 million years ago. It was a time of great change on Earth.

Describes how events during the Paleozoic Era impacted evolution.

Pre Cambrian ocean

See photos and illustrations of the plants and animals of the Permian period from National Geographic.

The Permian* was a time of specialization for marine fauna, with major diversifications of ammonoids, brachiopods and bryozoans. A slab exhibiting some of the richness of this fauna is on display. Insects, amphibians, and therapsids (the precursors of mammals) flourished during this time. Reptiles began to flourish in water and on land. During the middle of the Permian there

A collage based off the life of the Cambrian period (539-485 Mya)