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This proves that the continents were once one, the Cynognathus was not a strong swimmer, so in order for the Cynognathus to be in both South America and Africa the continents would have had to have been together at one point

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- The Cynognathus was about the size of a wolf.
- It was a mammal like reptile, with warmblood.
- The Cynognathus was an active predator, even though it wasn't very big.
- Their teeth are very helpful for hunting because of the way they were shaped and placed.

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Facts
-They were herbivores
-The reason the Lystrosaurus became extinct is thought to be because, it's likely that the planet cooled down for a time, then heated up into a devastatingly profound greenhouse.
-Lystrosaurus were born in eggs and they were only about two feet long
-The name Lystrosaurus means 'shovel lizard'
-Lystrosaurus is pronounced liss-tro-sore-us
-Lystrosaurus belong to a group of reptiles called therapsids

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This map shows where the fossils were found. Orange shows the Cynognathus, so the Cynognathus was in South America and Africa. The Gizmo shows a similar map when you click on Fossil Evidence

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(By the way we didn't do the glossopteris because its a plant so ignore it) 

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Cynognathus means dog jaw in Greek. The fossils of this animal were found in South Africa and South America. The Cynognathus is about the size of a modern wolf, so it was around 3 m. This species was alive during the Triassic Period, so about 240-250 million years ago.

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Do you see the difference between the many eras? In the paleozoic era, pangea is one. The lystrosaurus would have been in one continent, but different regions. Overtime, the continents drifted apart, and the lystrosaurus lived in the different regions until they passed. You can see in the Cenozoic era, the continents have been separated. The lystrosaurus could not have swam that far, so the continents must have drifted. The lystrosaurus would have been separated slowly. That's why the fossils were on different continents.

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Lystrosaurus fossils have been found in...
.India
.Madagascar
.Africa
.Antarctica

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Mesosaurus: Isabelle H                             Evidence 1 

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Mesosaurus: Isabelle H                             Evidence 1 

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Notes

Mesosaurus are early aquatic reptiles. there fossils were found in the early permian period in south america and south africa. they swam in freshwater lakes and ponds they are elongated and slim with long skull, tail and teeth. they measured about 3.3 metres long

Question

how could these animals have traveled around? since they only swam in freshwater lakes lakes and ponds there is no way they would like to swim in a non fresh water ocean

Conclusion

the reptiles each got separated as the continental drift happened and they couldn't move out because they couldn't travel and they would start to die by not being able to travel.