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Geologic TimeGeologic Time PeriodsEarth's Continental PlatesMesozoic DinosaursTypes of FossilsToday's featured page: List o' Contractions



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ZOOM
DINOSAURS
Geologic Time Scale
Short Version
(Go to the long version)
(mya = million years ago)
ENCHANTED
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Continental Drift
Forward Backward
Key
For more information on continental drift and plate tectonics, click here.

EON ERA PERIOD
P
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E
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"Visible Life"

Organisms with skeletons or hard shells.

540 mya through today
Cenozoic Era
"Age of Mammals"

65 mya through today
Quaternary Period
"The Age of Man"
1.8 mya to today
Tertiary Period
65 to 1.8 mya
Neogene
24-1.8 mya
Paleogene
65-24 mya
Mesozoic Era

"Age of Reptiles"

248 to 65 mya
Cretaceous Period
146 to 65 mya

Jurassic Period
208 to 146 mya

Triassic Period
248 to 208 mya

Paleozoic Era
540 to 248 mya
Permian Period
"Age of Amphibians"
280 to 248 mya

Carboniferous
360 to 280 mya
Pennsylvanian Period
325 to 280 mya
Mississippian Period
360 to 325 mya
Devonian Period,"The Age of Fishes"
408 to 360 mya

Silurian Period, 438 to 408 mya
Ordovician Period, 505 to 438 mya
Cambrian Period, 540 to 500 mya
Proterozoic Eon
2.5 billion years ago to
540 mya
- Vendian Period, 600 to 540 mya
-
Archeozoic Eon
(Archean)

3.9 to 2.5 billion years ago
- -
Hadean Eon
4.6 to 3.9 billion years ago
- -


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