EAST TENNESSEE GEOLOGICAL SOCIETY
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Geologic Time & Events
Phanerozoic
Eon
(542.0 my
to present)
my = million years |
Cenozoic
Era
(65.5 my
to present) |
Quaternary (2.588 my to present)
- Holocene (11,700 yrs to present)
- Pleistocene (2.588 my to 11,700 yrs)
|
Neogene (23.03 to 2.588 my)
- Pliocene (5.332 to 2.588 my)
- Miocene (23.03 to 5.332 my)
|
Paleogene (65.5 to 23.03 my)
- Oligocene (33.9 to 23.03 my)
- Eocene (55.8 to 33.9 my)
- Paleocene (65.5 to 55.8 my)
|
|
Mesozoic
Era
(251.0 to
65.5 my) |
Cretaceous (145.5 to 65.5 my)
- Upper (99.6 to 65.5 my)
- Lower (145.5 to 99.6 my)
|
Jurassic (199.6 to 145.5 my)
- Upper (161.2 to 145.5 my)
- Middle (175.6 to 161.2 my)
- Lower (199.6 to 175.6 my)
|
Triassic (251.0 to 199.6 my)
- Upper (228.7 to 199.6 my)
- Middle (245.9 to 228.7 my)
- Lower (251.0 to 245.9 my)
|
|
Paleozoic
Era
(541.0 to
251.0 my) |
Permian (299.0 to 251.0 my)
- Lopingian (260.4 to 251.0 my)
- Guadalupian (270.6 to 260.4 my)
- Cisuralian (299.0 to 270.6 my)
|
Carboniferous (359.2 to 299.0 my)
- Pennsylvanian (318.1 to 299.0 my)
- Upper (307.2 to 299.0 my)
- Middle (311.7 to 307.2 my)
- Lower (318.1 to 311.7 my)
- Mississippian (359.2 to 318.1 my)
- Upper (328.3 to 318.1 my)
- Middle (345.3 to 328.3 my)
- Lower (359.2 to 345.3 my)
|
Devonian (416.0 to 359.2 my)
- Upper (385.3 to 359.2 my)
- Middle (397.5 to 385.3 my)
- Lower (416.0 to 397.5 my)
|
Silurian (443.7 to 416.0 my)
- Pridoli (418.7 to 416.0 my)
- Ludlow (422.9 to 418.7 my)
- Wenlock (428.2 to 422.9 my)
- Llandovery (443.7 to 428.2 my)
|
Ordovician (488.3 to 443.7 my)
- Upper (460.9 to 443.7 my)
- Middle (471.8 to 460.9 my)
- Lower (488.3 to 471.8 my)
|
Cambrian (541.0 to 488.3 my)
- Furongian (499 to 488.3 my)
- Series 3 (510 to 499 my)
- Series 2 (521 to 510 my)
- Terreneuvian (541.0 to 521 my)
|
|
|
Proterozoic
Eon
(2500 to 541 my) |
|
Neoproterozoic Era (1,000 to 541
my) |
Ediacaran (635.0 to 541.0 my)
|
Cryogenian (720.0 to 635.0 my)
|
Tonian (1000 to 720.0 my)
|
|
Mesoproterozoic Era (1,600 to 1,000
my) |
Stenian (1200 to 1000 my)
|
Ectasian (1400 - 1200 my)
|
Calymmian (1600 - 1400 my)
|
|
Paleoproterozoic Era (2,500 to 1,600
my) |
Statherian (1800 - 1600 my)
|
Orosirian (2050 - 1800 my)
|
Rhyacian (2300 - 2050 my)
|
Siderian (2500 - 2300 my)
|
|
|
Archean
Eon
(4000 to 2500 my) |
|
Neoarchean Era (2,800 to 2,500 my) |
-
|
|
Mesoarchean Era (3,200 to 2,800 my) |
-
|
|
Paleoarchean Era (3,600 to 3,200 my) |
-
|
|
Eo Era (4,000 to 3,600 my) |
-
|
|
Hadean
Eon
(4600 to 4000 my) |
|
Credit:
By United States Geological Survey - Graham, Joseph, Newman,
William, and Stacy, John, 2008, The geologic time spiral—A path to
the past (ver. 1.1)
Credit: By
WoudloperDerivative work: Hardwigg
| |
Page updated
October 01, 2023
|