Preceden

Dinosaur Timeline

Eras

Paleozoic

540000000 BC - 252000000 bc

Paleozoic Wiki

Mesozoic

252000000 bc - 66000000 bc

Mesozoic

Cenozoic

66000000 bc - 2013

Paleozoic

Cambrian

540000000 BC - 485000000 BC

Ordovician

485000000 bc - 443000000 bc

Silurian

443000000 bc - 419000000 bc

Devonian

419000000 bc - 359000000 bc

Carboniferous

298000000 bc - 252000000 bc

Mesozoic

Triassic

252000000 bc - 201000000 bc

http://dinosite.goodeartworks.com/images/triassic_period.jpg

Apatosaurus

201000000 bc - 145000000 bc

http://images2.wikia.nocookie.net/__cb20100918070024/dino/images/a/a6/Apatosaurus.jpg
Apatosaurus Info

Jurassic

201000000 bc - 145000000 bc

http://upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Europasaurus_holgeri_Scene_2.jpg/260px-Europasaurus_holgeri_Scene_2.jpg

Cretaceous

145000000 bc - 66000000 bc

Cenozoic