Proterozoic Eon

A Short History of the World – from varying sources
2,500,000,000 B.C. – 542,000,000 B.C.

Updated when new information available. Current update: 06/08/2006.

Legend Color Guide
Geological Time In Descending Order:
 Eons = Cyan | Eras = Dark Green | Periods = Magenta | Epochs = Blue | Stages = Orange | Major Geological Events = Heavy Black Underlined | Cataclysmic Events = Bold Red Underlined |
Note: Some very early ages overlap or have conflicting dates, because different authorities have placed them or named them differently at different times.
Volcanic Explosivity Index (VEI)
Orders of Magnitude. Multiplier = 10: (VEI 6) = (10 X VEI 5):
 Large (Mt. St. Helens) = 5 | Terrific = 6 | Colossal = 7 | Gigantic = 8 | Cataclysmic (Super Volcano) 9 and above |
Culture Time
 Culture Periods = Brown | Not Generally Recognized Events and History = Magenta | Anomalies = Dark Green | Recognized Events and History = Plain Black |

Major Events

Proterozoic Eon (Age of First Life) – recent promotion from Era
• 2,500,000,000 B.C. – • 542,000,000 B.C.

• 2,500,000,000 B.C. – • 1,600,000,000 B.C. – Paleoproterozoic PP Era

• 2,500,000,000 B.C. – • 2,300,000,000 B.C. – Siderian PP1 Period

• 2,500,000,000 B.C. – Huronian Sub-Era
• 2,500,000,000 B.C. – • 1,400,000,000 B.C. – Huronian Stage (General)
• 2,500,000,000 B.C. – • 2,050,000,000 B.C. – Vaalian Stage (South African)
• 2,500,000,000 B.C. – • 1,800,000,000 B.C. – Nullaginian Stage (Australian)
• 2,350,000,000 B.C. – • 1,750,000,000 B.C. – Luliangian Stage (Chinese)

• 2,300,000,000 B.C. – • 2,050,000,000 B.C. – Rhyacian PP2 Period

• 2,225,000,000 B.C. – Animikean Sub-Era
• 2,200,000,000 B.C. – • 1,400,000,000 – Animikean Stage (General)

• 2,050,000,000 B.C. – • 1,800,000,000 B.C. – Orosirian PP3 Period
• 2,050,000,000 B.C. – • 900,000,000 B.C. – Mokolian Stage (South African)

• 1,800,000,000 B.C. – • 1,600,000,000 B.C. – Statherian PP4 Period
• 1,800,000,000 B.C. – • 1,300,000,000 B.C. – Carpentarian (Australian)
• 1,750,000,000 B.C. – • 800,000,000 B.C. – Jinningian Stage (Chinese)

• 1,675,000,000 B.C. – • 1,100,000,000 B.C. – Riphean (middle Proterozoic) Sub-Era

• 1,675,000,000 B.C. – Burzyan Epoch

• 1,600,000,000 B.C. – • 1,000,000,000 B.C. – Mesoproterozoic MP Era

• 1,600,000,000 B.C. – • 1,400,000,000 B.C. – Calymmian MP1 Period
• 1,600,000,000 B.C. – • 850,000,000 B.C. – Helikian Stage (North American)

• 1,400,000,000 B.C. – • 1,200,000,000 B.C. – Ectasian MP2 Period
• 1,400,000,000 B.C. – • 800,000,000 B.C. – Riphean Stage (General)
• 1,400,000,000 B.C. – • 1,375,000,000 B.C. – Burzyan SubStage (General)
• 1,375,000,000 B.C. – • 1,100,000,000 B.C. – Yurmatian SubStage (General)

• 1,375,000,000 B.C. – Yurmatian Epoch
• 1,300,000,000 B.C. – • 542,000,000 B.C. – Adelaidean Stage (Australian)

• 1,200,000,000 B.C. – • 1,000,000,000 B.C. – Stenian MP3 Period

• 1,100,000,000 B.C. – Karatau Epoch
• 1,100,000,000 B.C. – • 800,000,000 B.C. – Karatau SubStage (General)

• 1,000,000,000 B.C. – • 542,000,000 B.C. – Neoproterozoic NP Era – Earth enters period of prolonged severe world-wide glaciation. Ref: The Snowball Earth. 06/08/2006

• 1,000,000,000 B.C. – • 850,000,000 B.C. – Tonian NP1 Period
• 900,000,000 B.C. – • 542,000,000 B.C. – Namibian Stage (South African)

• 850,000,000 B.C. – • 630,000,000 B.C. – Cryogenian NP2 Period
• 850,000,000 B.C. – • 542,000,000 B.C. – Hadrynian Stage (North American)

• 825,000,000 B.C. – • 580,000,000 B.C. – Sinian Sub-Era (late Proterozoic)
• 800,000,000 B.C. – • 542,000,000 B.C. – Sinian Stage (Chinese) 03/05/2010

• 825,000,000 B.C. – Sturtian Period
• 800,000,000 B.C. – • 650,000,000 B.C. – Sturtian Stage (General)

• 716,500,000 B.C. – Snowball Earth Cycle begins. 2001 BBC Snowball Earth Series 03/05/2010

03/05/2010

• 700,000,000 B.C. – • 600,000,000 B.C. – Snowball Earth – by this time the ice cap was a kilometer thick over land and sea, frozen solid for ten million years. Ref: Life in the Extreme. 06/08/2006

• 650,000,000 B.C. – • 540,000,000 B.C. – Neoproterozoic III NP3 Period
• 650,000,000 B.C. – • 630,000,000 B.C. – Varangian Stage (General)

650000000BC
• 650,000,000 B.C. – Earth Land Mass Reconstruction

• 650,000,000 B.C. – • 542,000,000 B.C. – Vendian Stage (General)
• 650,000,000 B.C. – • 640,000,000 B.C. – Smalfjord Stage (General)
• 640,000,000 B.C. – • 630,000,000 B.C. – Mortesnes Stage (General)

• 635,000,000 B.C. – Snowball Earth returns. 03/05/2010

• 630,000,000 B.C. – • 542,000,000 B.C. – Ediacaran Period
• 630,000,000 B.C. – • 570,000,000 B.C. – Wonokan Stage (General)

• 610,000,000 B.C. – • 580,000,000 B.C. – Vendian Period

• 610,000,000 B.C. – • 600,000,000 B.C. – Varanger Epoch

• 600,000,000 B.C. – ANOMALY: (Scotland 1880) Iron band impressions discovered in rocks.

• 600,000,000 B.C. – • 300,000,000 B.C. – ANOMALY: (U.S. 1968) Fossil sandal and child foot prints found in trilobite formations

• 570,000,000 B.C. – • 542,000,00 B.C. – Poundian Stage (General)

Compiled by PIF

  1. The Precambrian Eon: 4,567,170,000 B.C. – 2,350,000,000 B.C.
  2. The Proterozoic Eon: 2,500,000,000 B.C. – 542,000,000 B.C.
  3. The Phanerozoic Eon – Palaeozoic Era: 542,000,000 B.C. – 142,000,000 B.C.
  4. The Phanerozoic Eon – Cretaceous Era: 142,000,000 B.C. – 71,300,000 B.C.
  5. The Phanerozoic Eon – Cenozoic Era: 66,000,000 B.C. – 2,000,000 B.C.
  6. The Phanerozoic Eon – Quaternary Period: 1,806,000 B.C. – 12,000 B.C.
  7. The Phanerozoic Eon – Holocene Epoch: 11,430 B.C. – 4128 B.C.
  8. The Phanerozoic Eon – Historical Present: 4000 B.C. – 2009 A.D.
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