Geologic Time Scale: Precambrian

The Precambrian 

Proterozoic Eon

Neoproterozic (Ediacaran): 635.0 to 538.8 million years ago

Proterozoic Eon

Neoproterozic (Cryogenian): 720 to 635 million years ago

Proterozoic Eon

Neoproterozic (Tonian): 1000 to 720 million years ago

Proterozoic Eon

Mesoproterozoic (Stenian): 1200 to 1000 million years ago

Proterozoic Eon

Mesoproterozoic (Ectasian): 1400 to 1200 million years ago

Proterozoic Eon

Mesoproterozoic (Calymmian): 1600 to 1400 million years ago

Proterozoic Eon

Paleoproterozoic (Statherian): 1800 to 1600 million years ago

Proterozoic Eon

Paleoproterozoic (Orosirian): 2050 to 1800 million years ago

Proterozoic Eon

Paleoproterozoic (Rhyacian): 2300 to 2050 million years ago

Proterozoic Eon

Paleoproterozoic (Siderian): 2500 to 2300 million years ago

Archean Eon

Neoarchean: 2800 to 2500 million years ago

Archean Eon

Mesoarchean: 3200 to 2800 million years ago

Archean Eon

Paleoarchean: 3600 to 3200 million years ago

Archean Eon

Eoarchean: 4000 to 3600 million years ago

Hadean Eon

4600 to 4000 million years ago

<< Back to Geologic Time Scale

Next to  Cambrian Period >>