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Geologic Eons, Eras and Periods

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Quiz by scambigol
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Last updated: June 6, 2016
First submittedJune 6, 2016
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Eon
Era
Period
Extent, Million Years ago
Phanerozoic
Cenozoic
Quaternary
2.588–0
Neogene
23.03–2.588
Paleogene
66.0–23.03
Mesozoic
Cretaceous
145.5–66.0
Jurassic
201.3–145.0
Triassic
252.17–201.3
Paleozoic
Permian
298.9–252.17
Carboniferous
358.9–298.9
Devonian
419.2–358.9
Silurian
443.4–419.2
Ordovician
485.4–443.4
Cambrian
541.0–485.4
Proterozoic
Neoproterozoic
Ediacaran
635.0–541.0
Cryogenian
850–635
Tonian
1000–850
Mesoproterozoic
Stenian
1200–1000
Ectasian
1400–1200
Calymmian
1600–1400
Paleoproterozoic
Statherian
1800–1600
Orosirian
2050–1800
Rhyacian
2300–2050
Siderian
2500–2300
Archean
Neoarchean
 
2800-2500
Mesoarchean
 
3200-2800
Paleoarchean
 
3600-3200
Eoarchean
 
4000-3600
Hadean
 
 
>4000
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