Geologic Time Scale
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30 Terms
Hadean Eon
4540 - 4000 Ma
Archean Eon
4000 - 2500 Ma
Eoarchean Era
4000 - 3600 Ma
Paleoarchean Era
3600 - 3200 Ma
Mesoarchean Era
3200 - 2800 Ma
Neoarchean Era
2800 - 2500 Ma
Proterozoic Eon
2500 - 539 Ma
Paleoproterozoic Era
2500 - 1600 Ma
Mesoproterozoic Era
1600 - 1000 Ma
Neoproterozoic Era
1000 - 539 Ma
Tonian Period
1000 - 720 Ma
Cryogenian Period
720 - 635 Ma
Ediacaran Period
635 - 539 Ma
Phanerozoic Eon
539 - 0 Ma
Paleozoic Era
539 - 252 Ma
Cambrian Period
539 - 487 Ma
Ordovician Period
487 - 443 Ma
Silurian Period
443 - 419 Ma
Devonian Period
419 - 359 Ma
Mississippian Period
359 - 323 Ma
Pennsylvanian Period
323 - 299 Ma
Permian Period
299 - 252 Ma
Mesozoic Era
252 - 66 Ma
Triassic Period
252 - 201 Ma
Jurassic Period
201 - 143 Ma
Cretaceous Period
143 - 66 Ma
Cenozoic Era
66 - 0 Ma
Paleogene Period
66 - 23 Ma
Neogene Period
23 - 2.6 Ma
Quaternary Period
2.6 - 0 Ma
Note 
Flashcards (217)