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Scientists tend to think that life on the great supercontinent Pangea enjoyed weather that was similar to today's. With an ice sheet dominating the landscape near the south pole, there was certainly an occasional cold snap, but the tropics are believed to have been hot and humid They've found evidence that a massive glacier lived near the equator further south and closer to sea level than thought If true, the climate during the late Paleozoic Era was even chillier than during the last Ice Age could also have been extremely volatile, swinging in wild cycles Gerilyn Soreghan of Oklahoma University discovered strange rocks floor of the remote Unaweep Canyon, high on the Colorado Pleateau If Unaweep were carved by a huge tongue of ice in the late Paleozoic it just stayed a lot colder all of the time |
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