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The mesosaurus become extinct about 300 million years ago. This was a type of reptile that looked like a lizard and was the first reptile to go back to aquatic environments.
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Related Questions
What we're land Bridges used as an explanation for?
Mesosaurus fossils
How did emus become extinct?
They are not extinct.
How did bears become extinct?
They are not extinct.
When did aardvarks become extinct?
They are not extinct.
When did the Sioux become extinct?
The are not fully extinct but nearly extinct.
Why do most species of animals become extinct?
Most become extinct because they can not adapt to changes in their environments. Those that can don't become extinct.
Will panda's become extinct?
In years maybe decades the panda will become extinct
Will redheads become extinct?
No, blondes are just as likely to become extinct as redheads are.
When did jaguars become extinct?
they aren't extinct
How did jaguars become extinct?
Jaguars are not extinct.
When did gorillas become extinct?
Gorillas are not extinct.
Is it true that no creatures has ever become extinct?
no, some rhinos have become extinct, like the Vietnamese java rhino.........and also dinosaurs have become extinct, by the meteorites
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