Permian Period

251 mya – Mass extinctionThe Paleozoic ends with the greatest Mass Extinction in

geologic history

299-251 million years ago

Permian Plants• Conifers 1st Appear (Needle like

trees)• Cycads Appear (Seed Fern)

Terrestrial Animals• 1st Archosaurs AppearGroup that gives rise to

dinosaurs

• DimetrodonGroup that gives rise to

Mammals

Marine Waters are rich withMarine Animals

• Echinoderms• Brachiopods• Fusulinids• Cephalopods • Trilobites

Insects• Cockroaches• Dragonflies

Mass Extinctionmarks the end of the Permian and thus the

Paleozoic EraLARGEST MASS EXTINCTION IN

GEOLOGIC HISTORY

Bye-Bye Trilobites and Eurypterids

251 million years ago

What does it look like?

Pangaea Is Complete