All The Time In The World…Geologically.


geoClock

This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga(billion years ago). Other subdivisions reflect the evolution of life; the Archean and Proterozoic are both eons, the Palaeozoic, Mesozoic and Cenozoic are eras of the Phanerozoic eon. The two million year Quaternary period, the time of recognizable humans, is too small to be visible at this scale.

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2 thoughts on “All The Time In The World…Geologically.

    • You’re welcome and you are right. A grain of sand in the desert of time.

      I was having trouble posting the image earlier (it was coming out all black). Hopefully you could see it clearly.

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