Earth

Main

Pre-Cambrian

4000000000 bc - 544000000 bc

Earth forms, Volcanoes, shallow seas, jellyfish and first trilobites

Cambrian

544000000 bc - 505000000 bc

Build up of Supercontinent Gondwana, trilobites, oceans, and shrimp/krill

Ordovician

505000000 bc - 438000000 bc

Whales, oceans, forming of Gondwana, first jawless fish, squids/nautiloid, and octopi.

Silurian

438000000 bc - 408000000 bc

First fish with jaws, oceans, trilobites, 1st amphibians

Devonian

408000000 bc - 360000000 bc

First sharks, amphibians move to land, trees, deep oceans

Carboniferous

360000000 bc - 286000000 bc

Carbon, first reptiles, first winged insects, and herbivores with backbones

Permian

286000000 bc - 245000000 bc

First dinosaurs and mass extinction, Pangaea forms

Triassic

245000000 bc - 208000000 bc

First birds, dinosaurs, Pangaea many animals

Jurassic

208000000 bc - 144000000 bc

1st small mammals, 1st flowering plants, Pangaea breaks apart

Quarternary

180000000 bc - 2013

Mammals are dominant species, cavemen, modern humans, and Meandertals

Cretaceous

144000000 bc - 65000000 bc

1st leafy trees, mass extinction, mid ocean ridge spreads, snakes, turtles, and crocodiles

Tertiary

65000000 bc - 1800000 bc

First Humans, saber tooth tiger, saber tooth squirrel, mammoths, 7 continents, oceans