Time since the end of the Permian geologic period

Time since the end of the Permian geologic period (252 million y)

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Neat Ratios ...

Time since the end of the Permian geologic period (252 million y)

  • is 2 x Time since the emergence of flowering plants (125 million y)...more
  • is 4 x Length of one Alautun, longest unit in Mayan calendar (63.1 million y)...more
  • is 1000 x Time since the first modern humans (250,000 y)...more
  • is 5000 x Time since first humans in Australia (50,000 y)...more

If this was a standard unit ...

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