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Saturday, May 20, 2023

05-20-2023-0357 - File:Geomagnetic polarity 0-169 Ma.svg

File:Geomagnetic polarity 0-169 Ma.svg


 
File:Geomagnetic polarity 0-169 Ma.svg

https://en.wikipedia.org/wiki/File:Geomagnetic_polarity_0-169_Ma.svg


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