Geologic Time Large Clock
- from our Affiliates
This bizarre wall clock functions as a normal clock, but features the geologic time scale instead of the hours! Starting at 4.6 billion years ago at 12:00, this clock takes you through the four eons of Earth's history (Hadean->Archean->Proterozoic->Phanerozoic), with the latter one divided into the Paleozoic, Mesozoic, and Cenozoic eras. The actual daily time is not numbered, but the hours and minutes are marked by tickmarks on the outer edge.
$38.95
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