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Geologic periods are geologic divisions which are further divided into epochs, series, stages, and ages.

Timeline of geologic periods Edit

Hadean Edit

There are no geologic periods in the Hadean.

Archean Edit

There are geologic periods for the Archean respectively. These were not classified prior to the 2010s.

Eoarchean:

  • Ataroan (4 billion years ago to 3.8 billion years ago)
  • Khernian (3.8 billion years ago to 3.6 billion years ago)
  • Niwesian (3.6 billion years ago to 3.5 billion years ago)

Paleoarchean:

  • Soorlaanian (3.5 billion years ago to 3.45 billion years ago)
  • Taimatsuan (3.45 billion years ago to 3.25 billion years ago)
  • Leactite (3.25 billion years ago to 3.15 billion years ago)

Mesoarchean:

  • Hiroshiman (3.15 billion years ago to 3.09 billion years ago)
  • Kärrmattian (3.09 billion years ago to 3.02 billion years ago)
  • Sendaisian (3.02 billion years ago to 2.94 billion years ago)
  • Tidigisian (2.94 billion years ago to 2.9 billion years ago)

Neoarchean:

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