Geologic Time Scale
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26 Terms
three eras in the phanerozoic eon
paleozoic, mesozoic, cenozoic
periods in the paleozoic era
cambrian, ordovician, silurian, devonian, carboniferous (mississippian, pennsylvanian), permian
periods in the mesozoic era
triassic, jurassic, cretaceous
periods in the cenozoic era
tertiary, quaternary
epochs in the cenozoic era
paleocene, eocene, oligocene, micene, pliocene (tertiary); pleistocene, holocene (quaternary)
paleozoic time period
542-251 Ma
Cambrian
542-488 Ma
Ordovician
488-444
Silurian
444-416
Devonain
416-359
Carboniferous
359-299
Mississippian
359-318
Pennsylvanian
318-299
Permian
299-251
Mesozoic
251-66
Triassic
251-200
Jurassic
200-146
Cretaceous
146-66
Cenozoic
66-Present
Paleocene
66-55.8
Eocene
55.8-33.9
Oligocene
33.9-23
Miocene
23-5.3
Pliocene
5.3-2.6
Pleistocene
2.6-0.012
Holocene
0.012-Present
Note 
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