Geological Time Scale (Eon, Era, Period, Epoch/Series)

Note: Two of the epochs in this quiz (which will pop up in bold) are actually subperiods
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geographylover57
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Last updated: September 10, 2025
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First submittedJuly 21, 2025
Times taken64
Average score49.2%
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Eon
Era
Period
Epoch
Phanerozoic
Cenozoic
Quartenary
Holocene
Pleistocene
Neogene
Pliocene
Miocene
Paleogene
Oligocene
Eocene
Paleocene
Mesozoic
Cretaceous
Upper
Lower
Jurassic
Upper
Middle
Lower
Triassic
Upper
Middle
Lower
Paleozoic
Permian
Lopingian
Guadalupian
Cisuralian
Carboniferous
Pennsylvanian
Mississippian
Devonian
Upper
Middle
Lower
Silurian
Pridoli
Ludlow
Wenlock
Llandovery
Ordovician
Upper
Middle
Lower
Cambrian
Furongian
Miaolingian
Series 2
Terreneuvian
Proterozoic
Neoproterozoic
Ediacaran
X
Cryogenian
Tonian
Mesoproterozoic
Stenian
Ectasian
Calymmian
Paleoproterozoic
Statherian
Orosirian
Rhyacian
Siderian
Archean
Neoarchean
X
Mesoarchean
Paleoarchean
Eoarchean
Hadean
X
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