Ad: You Are Here (Geological Age Earth's History) Pinback Button
Do you know where you are in geological time? If you are a fan of Earth's history and think in terms of eons epochs and periods you'll enjoy any of these wry geological age gifts featuring Earth's timeline along with the call-out "You Are Here" pointing to the present. Scientific attitude gifts for all those who live in the present and know about it! myEarthScience
#geology #geological #earths #history #PinbackButton
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