Geologic Time

 
 

 
  Geologic Time has two main EONS Precambrian Eon (3980 (if including Archaean) or 2500 to 544 Million Years Ago) Before Life Existed and Phanerozoic Eon (544 Million Years Ago to today) After Life Existed
Of the Precambrian Eon

 
Hadean Eon
(4500 to 3800 Million Years Ago - Earth Forms)
Archaean Eon/Era
(3800 to 2500 Million Years Ago (Atmosphere developed)
  • PreCambian Geological Time page

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    Of the Phanerozoic Eon

     
    Phanerozoic Eon (570 more or less Million Years Ago to today) Which is the part of the time line when we think there was life. And it is broken down into three eras: The Cenozoic era is the most recent, the Mesozoic era in the middle, and the Paleozoic era (from the Greek for means "old life."

     
     
     

     
     
     
     
     
     
     
     
     
    • Cenozoic Era (65 Million Years Ago to today)
    • 000+ Cenozoic Era/Quaternary period (today to 1.8 Million Years Ago)
    • 0.1 Cenozoic Era/Quaternary period/Holocene Epoch (11,000 to 1.8 Million years ago)
    • 1.8 Cenozoic Era/Quaternary period Pleistocene Epoch (1.8 to 65 Million Years Ago)
    • 1.8+ Cenozoic Era/Tertiary Era/Period (1.8 to 65 Million Years Ago)
    • 1.8 Cenozoic Era/Tertiary-(neogene) Period/Paleocene Epoch (1.8 to 5 Million Years Ago)
    • 005 Cenozoic Era/Tertiary-(neogene) Period/Miocene Epoch (5 to 23 Million Years Ago)
    • 023 Cenozoic Era/Tertiary-(paleogene) Period/Oligocene Epoch (23 to 38 Million Years Ago)
    • 038 Cenozoic Era/Tertiary-(paleogene) Period/Eocene Epoch (38 to 54 Million Years Ago)
    • 054 Cenozoic Era/Tertiary-(paleogene) Period/Pliocene Epoch (54 to 65 Million Years Ago)
    • 065+ Mesozoic Era (65 to 245 Million Years Ago)
    • 065 Mesozoic Era/Cretaceous Period (65 to 146 Million Years Ago)
    • 146 Mesozoic Era/Jurassic Period (146 to 208 Million Years Ago)
    • 208 Mesozoic Era/Triassic Period (208 to 245 Million Years Ago)
    • 245+ Paleozoic Era (245 to 544 Million Years Ago)
    • 245 Paleozoic Era/Permian Period (245 to 286 Million Years Ago)
    • 286 Paleozoic Era/Carboniferous Periods (286 to 360 Million Years Ago)
    • 289 Paleozoic Era/(late Carboniferous)/Pennsylvanian Period (286 to 325 Million Years Ago)
    • 325 Paleozoic Era/(early Carboniferous)/Mississippian Period (325 to 360 Million Years Ago)
    • 410 Paleozoic Era/Devonian Period (410 to 360 Million Years Ago)
    • 440 Paleozoic Era/Silurian Period (440 to 410 Million Years Ago)
    • 505 Paleozoic Era/Ordovician Period (505 to 440 Million Years Ago)
    • 554 Paleozoic Era/Cambrian Period (544 to 505 Million Years Ago)

     
     
     
    Phanerozoic Eon Geological Time page

     
     
     
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