20 million years ago

100 million years ago

45 million years ago

65 million years ago

Jurassic

Carboniferous

Permian

Devonian

Permian

Jurassic

Cretaceous

Triassic

600 million years ago

500 million years ago

300 million years ago

445 million years ago

Jurassic

Permian

Triassic

Cretaceous

300 million years ago

530 million years ago

400 million years ago

600 million years ago

Mesozoic

Precambrian

Cenozoic

Paleozoic

Jurassic

Triassic

Cretaceous

Paleogene

1 million years ago

300,000 years ago

2 million years ago

500,000 years ago

Dimetrodon

Woolly Mammoth

Velociraptor

Stegosaurus

Alpine

Andean

Huronian

Karoo

600 million years ago

1 billion years ago

2 billion years ago

400 million years ago

Permian

Cretaceous

Jurassic

Triassic

Carboniferous

Permian

Jurassic

Triassic

4.6 billion years

2.5 billion years

5.5 billion years

3.5 billion years

66 million

100 million

45 million

120 million

Devonian

Silurian

Ordovician

Cambrian

Orange

Purple

Blue

Green

Jurassic

Cretaceous

Permian

Triassic

300 million years ago

150 million years ago

65 million years ago

225 million years ago