Geologic Time

Can you guess all divisions of geologic time?
Quiz by
manguy
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Last updated: December 4, 2025
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First submittedFebruary 11, 2025
Times taken17
Average score14.9%
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Eon
Era
Period
Epoch
Hadean
Archean
Eoarchean
Paleoarchean
Mesoarchean
Neoarchean
Proterozoic
Paleoproterozoic
Siderian
Rhyacian
Orosirian
Statherian
Mesoproterozoic
Calymmian
Ectasian
Stenian
Neoproterozoic
Tonian
Cryogenian
Ediacaran
Phanerozoic
Paleozoic
Cambrian
Terreneuvian
Cambrian Series 2
Miaolingian
Furongian
Ordovician
Lower Ordovician
Middle Ordovician
Upper Ordovician
Silurian
Llandovery
Wenlock
Ludlow
Pridoli
Devonian
Lower Devonian
Middle Devonian
Upper Devonian
Carboniferous
Lower Mississippian
Middle Mississippian
Upper Mississippian
Lower Pennsylvanian
Middle Pennsylvanian
Upper Pennsylvanian
Permian
Cisuralian
Guadalupian
Lopingian
Mesozoic
Triassic
Lower Triassic
Middle Triassic
Upper Triassic
Jurassic
Lower Jurassic
Middle Jurassic
Upper Jurassic
Cretaceous
Lower Cretaceous
Upper Cretaceous
Cenozoic
Paleogene
Paleocene
Eocene
Oligocene
Neogene
Miocene
Pliocene
Quaternary
Pleistocene
Holocene
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