Time since the end of the Devonian geologic period

Time since the end of the Devonian geologic period (359 million y)

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

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Time since the end of the Devonian geologic period (359 million y)

is 2.5 x Time since the end of the Jurassic geologic period (145 million y)...more

If this was a standard unit ...