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Beginning of Paleozoic era
Paleozoic era begins
570 million years ago -
Rocks form
Worlds oldest rocks form on earth
4400 million years ago -
Beginning of the Mesozoic era
Mesozoic era begins
248 million years ago -
Plants take root on land
plants take root on the earth
430 million years ago -
Birds take flight
150 million years ago -
Dinosaurs go extinct
Dinosuars suffer a massive extinction
65 million years ago -
Beginning of the Cenozoic period
Cenozoic period begins
63 million years ago -
Mammals appear
after the sudden extinction of Dinosaurs, mammals begin to walk the earth -
Ice age grips world
Ice age begins
the most recent Ice age ended 10,000 years ago