History of Life

The Eras of Life

The Precambrian Era

Chemosynthesis and Photosynthesis

Endosymbiosis

End of the Precambrian Era

Paleozoic Era

Periods

Cambrian Explosion

Mass Extinctions

Mesozoic Era

Triassic Period

Jurassic Period

Cretaceous Period

Cenozoic Era

Paleogene Period

Neogene Period

Quaternary Period

Scale