But once Gondwana took up its polar position in the late Ordovician, massive glaciers formed over Africa at the supercontinent's center. This heralded a 20-million-year ice age during which ...
Secret History on MSN6d
What If You Lived in the Paleozoic Era?Thanks to Keeps for sponsoring this video! Head to <a href=" to get 50% off your first Keeps order.It’s a Paleozoic party! We ...
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