298.9–251.9 MYA

Permian

The world before dinosaurs — a single supercontinent, Pangaea, and the ancestors of mammals and reptiles diversifying side by side. Ends in the worst extinction life on Earth has ever recorded.

How it ends

Permian–Triassic extinction

“The Great Dying” — up to 96% of species lost, clearing the way for archosaurs and eventually dinosaurs to rise.

Genera from this era

0 catalogued

No genera classified to this exact era yet — check back as the archive grows.