North American Fossil Localities Paleobiology Database · Interactive Stratigraphic Explorer

Geologic Time

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Cenozoic
Quaternary
0 – 2.58 Ma
Neogene
2.58 – 23.03 Ma
Paleogene
23.03 – 66.0 Ma
Mesozoic
Cretaceous
66.0 – 145.0 Ma
Jurassic
145.0 – 201.4 Ma
Triassic
201.4 – 251.9 Ma
Paleozoic
Permian
251.9 – 298.9 Ma
Carboniferous
298.9 – 358.9 Ma
Devonian
358.9 – 419.2 Ma
Silurian
419.2 – 443.8 Ma
Ordovician
443.8 – 485.4 Ma
Cambrian
485.4 – 538.8 Ma
Neoproterozoic
Ediacaran
538.8 – 635.0 Ma
Cryogenian
635.0 – 720.0 Ma
Tonian
720.0 – 1000.0 Ma
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