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Geologic Age Range

ERA PERIOD EPOCH
Cenozoic
 Quaternary Holocene
Pleistocene
Tertiary
 late
(Neogene)		 Pliocene
Miocene
early
(Paleogene)		 Oligocene
Eocene
Paleocene
Mesozoic
 Cretaceous Late
Early
Jurassic Late
Middle
Early
Triassic Late
Middle
Early
Paleozoic
 Permian Late *
Middle *
Early *
Carbonif.
Penn.
 Late
Middle
Early
Miss.
 Late *
Middle *
Early *
Devonian Late
Middle
Early
Silurian Late
Early
Ordovician Late *
Middle *
Early *
Cambrian Late
Middle
Early
Precamb.
 Proterozoic Late
Middle
Early
Archean
* Epochs not yet searchable in Geolex. Learn more
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Page Last Modified: Sun Jan 15 11:48:51 2017