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Wegener knew that fossil plants and animals such as mesosaurs, a freshwater reptile found only South America and Africa during the Permian period, could be found on many continents.
fossils of the reptile mesosoaurus have been found in south america and Africa. it probably coldnt swim between the conmtinents. scientist theorized that this reptile live.... more
meosopia
Caimans are alligator like crocodilians found in rivers of South America.
I believe his first observation was the way the continents of South America and Africa "fit" together like a jigsaw puzzle (although he was not the first to realize this). He also made note of fossil discoveries in Africa which corresponded to those in South America. Finally, he began his own research which actually alligned rock formation/componants from one side of the Atlantic with the other.
The geographic distribution of the swimming reptile Mesosaurus provides evidence that supports continental drift. Fossils belonging to the Mesosaurus were found far away from each other, in both South Africa and South America.
South america and Africa were once joined.
South Dakota
Mesosaurus
It is the Giant Tortis
Rainforests in South America are found south of the equator.