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Geological Time - Hard

Name every official named part of geological time (Excluding ages, the smallest version of time - there are 100 just of those) The two highlighted in yellow are technically sub-periods, not epochs.
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stuza1
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Last updated: October 22, 2020
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First submittedOctober 22, 2020
Times taken548
Average score49.3%
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Eons
Eras
Periods
Epochs
Time period covered
 
 
 
 
(Million years ago)
Hadean
-
-
-
4600-4000
Archean
Eoarchean
-
-
4000-3600
Paleoarchean
-
-
3600-3200
Mesoarchean
-
-
3200-2800
Neoarchean
-
-
2800-2500
Proterozoic
Paleoproterozoic
Siderian
-
2500-2300
Rhyacian
-
2300-2050
Orosirian
-
2050-1800
Statherian
-
1800-1600
Mesoproterozoic
Calymmian
-
1600-1400
Ectasian
-
1400-1200
Stenian
-
1200-1000
Neoproterozoic
Tonian
-
1000-720
Cryogenian
-
720-635
Ediacaran
-
635-541
Phanerozoic
Paleozoic
Cambrian
Terreneuvian
541-521
Series 2
521-509
Series 3
509-497
Furongian
497-485
Ordovician
Lower
485-470
Middle
470-458
Upper
458-444
Silurian
Llandovery
444-433
Wenlock
433-427
Ludlow
427-423
Pridoli
423-419
Devonian
Lower
419-393
Middle
393-383
Upper
383-359
Carboniferous
Mississippian
359-323
Pennsylvanian
323-299
Permian
Cisuralian
299-273
Guadalupian
273-259
Lopingian
259-252
Mesozoic
Triassic
Lower
252-247
Middle
247-237
Upper
237-201
Jurassic
Lower
201-174
Middle
174-164
Upper
164-145
Cretaceous
Lower
145-101
Upper
101-66
Cenozoic
Paleogene
Paleocene
66-56
Eocene
56-34
Oligocene
34-23
Neogene
Miocene
23-5.3
Pliocene
5.3-2.6
Quaternary
Pleistocene
2.6-0.01
Holocene
0.01-0.00007
Anthropocene
0.00007-present
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1 Comments
geographylover57
+1
Level 28
Jul 21, 2025
Sorry, I realize this is an old quiz but I wanted to mention something. The third series of the Cambrian has a name, it's the Miaolingian. Also, I don't think Anthropocene should be included since it's not official (it got rejected by both the ICS and the IUGS in 2024).
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