Climatic Evidence


Had the continents been arranged the way they are now 250 million years ago, the northern hemisphere would have consisted of tropical swamps and the southern hemisphere would have consisted of vast ice sheets. 250 million years ago, the continents we see today were one big continent called Pangaea, which means all-earth, by Alfred Wegener. In Pangaea, today's southern hemisphere continents were near present-day Antarctica and today's northern hemisphere continents were near the equator; Therefore the northern hemisphere had a much warmer climate than it does today and the suothern hemisphere had a much colder one. Alfred Wegener's theory of continental drift is behind these facts.

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Fossil Evidence

Fossil
Type
Lived
Found In
Glossopteris
Plant
260 million years ago
All continents
Lustrosaurus
Reptile
240 million years ago
Africa, India, Antarctica
Cynognathus
Reptile
240 million years ago
South America, Africa
Mesosaurus
Swimming reptile
260 million years ago
South America, Africa

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Rock/Mountain Evidence

  • The Appalachian Mountain Range

  1. Exists on the East coast of North America
  2. And the British Isles and Scandinavia
  3. forms a continuous mountain range when Europe and North America are put together like the supercontinent Panagea
  4. This evidence, that the mountain ranges once were conjoined, helped Wegener prove continental drift.