Evolution Timeline

Million Years Ago

Main

End of Jurassic Period

150

Appearance of Birds

150

Start of Jurassic Period

200

Appearance of Mammals

200

Appearance of Dinosaurs

200

Appearance of Mammal-like Reptiles

250

Appearance of Reptiles

300

Appearance of Insects

300

Appearance of Amphibians on Land

350

Appearance of Jawed Fish

420

Appearance of Terrestrial Plants

450

End of Cambrian Period

500

Appearance of Jawless Fish

550

End of Precambrain Con

600

Appearance of Organisms with Hard Parts

600

Start of Phanerozoic Eon

600

85% of Earth's History Already Over

600

Appearance of Chordates

600

Beginning of Cambrian Period

600

Appearance of Metazoans

800

Appearance of Eucaryotes

1500

End of the Cretaceous

65

Meteor Strikes Earth Leading to Extinction of DInosaurs

65

Beginning of the Tertiary Period

65

Beginning of the "Age of Mammals"

65

Appearance of Tree shrew-like Protoprimates

80

Oxygen Containing Atmosphere

2000

Appearance of Photosynthesis

3000

Oldest Fossil Bacteria

3500

Origin of Earth

4500