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Eons
Hadean
Archean
Neoarchean
Mesoarchean
Paleoarchean
Eoarchean
Proterozoic
Neoproterozoic
Mesoproterozoic
Paleoproterozoic
Phanerozoic
Cenozoic
Mesozoic
Paleozoic
Era
Eons
Start(Years Ago)
Image
Era
periods
Details
Ancient Organisms
Phanerozoic
3
542,000,000
Paleozoic
Cambrian
Ordovician
Silurian period
Devonian
Carboniferous
Permian
252,000,000
Mesozoic
Triassic
Jurassic
Cretaceous
Abelisaurus
Acrocanthosaurus
Aerosteon
Afrovenator
Allosaurus
Angaturama
Arcovenator
Aucasaurus
Australovenator
Bahariasaurus
Baryonyx
Becklespinax
Berberosaurus
Bicentenaria
Carcharodontosaurus
Carnotaurus
Ceratosaurus
Chilantaisaurus
Concavenator
Cruxicheiros
Show 60 more66,000,000
Cenozoic
Paleogene period
Neogene period
Quaternary Period
Recent animals” Current era. Mammal takeover
Proterozoic
3
2,500,000,000
Paleoproterozoic
Statherian
Orosirian
Rhyacian
Siderian
1,600,000,000
Mesoproterozoic
Stenian
Ectasian
Calymmian
1,000,000,000
Neoproterozoic
Ediacaran
Cryogenian
Tonian
Archean
4
4,000,000,000
Eoarchean
3,600,000,000
Paleoarchean
3,200,000,000
Mesoarchean
2,800,000,000
Neoarchean
Periods
Epoch
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