Geologic Time Scale

29 cards·by tiffreja

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Precambrian

4500-500 million years ago, supereon

Hadean

4500-3800 million years ago, eon

Archean

3800-2500 million years ago, eon

Proterozoic

2500-600 million years ago, eon

Phanerozoic

600-0 million years ago, eon

Paleozoic

600-250 million years ago, era

Mesozoic

250-70 million years ago, era

Cenozoic

70-0 million years ago, era

Phanerozoic periods in chronological order (old to young)

cambrian, ordovician, silurian, devonian, carboniferous, permian, triassic, jurassic, cretaceous, paleogene, neogene, quaternary

Cenozoic epochs in chronological order (old to young)

paleocene, eocene, oligocene, miocene, pliocene, pleistocene, holocene

Cambrian

550-490 million years ago, period

Ordovician

490-450 million years ago, period

Silurian

450-420 million years ago, period

Devonian

420-360 million years ago, period

Carboniferous

360-300 million years ago, period

Permian

300-250 million years ago, period

Triassic

250-200 million years ago, period

Jurassic

200-155 million years ago, period

Cretaceous

155-70 million years ago, period

Paleogene

65-23 million years ago, period

Neogene

23-2.5 million years ago, period

Quarternary

2.5-0 million years ago, period

Paleocene

65-56 million years ago, epoch

Eocene

56-34 million years ago, epoch

Oligocene

34-23 million years ago, epoch

Miocene

23-5.5 million years ago, epoch

Pliocene

5.5-2.5 million years ago, epoch

Pleistocene

2.5 million-10,000 years ago, epoch

Holocene

10,000-0 years ago, epoch