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Hadean
4.54-4.0 Ga
Archean
4.0-2.5 Ga
Proterozoic
2.5 Ga-541 Ma
Phanerozoic
541 Ma-0 Ma.
Precambrian-Cambrian
541.0 Ma
Cambrian-Ordovician
485.4 Ma
Ordovician-Silurian
443.8 Ma
Ordovician-Silurian
443.8 Ma
Silurian-Devonian
419.2 Ma
Devonian-Carboniferous
358.9 Ma
Carboniferous-Permian
298.9 Ma
Permian-Triassic
251.90 Ma
Triassic-Jurassic
201.3 Ma
Jurassic-Cretaceous
145.0 Ma
Cretaceous-Paleogene
66.0 Ma
Paleogene-Neogene
23.03 Ma
Neogene-Quaternary
2.58 Ma
Paleozoic
540-251.90 Ma
Mesozoic
251.90 Ma-66.0 Ma
Cenozoic
66.0- 0 Ma