Time since the end of the Permian geologic period

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

/fact/time-since-the-end-of-the-permian-geologic-period

Link

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 ...