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The last dinosaurs became extinct about 65 million years ago at the end of the Cretaceous period.

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14y ago
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12y ago

The dimetrodon was a large, mammal-like reptile that lived during the Permian period, 260-280 million years ago. but it went extinct in the Permian Mass Extinction in 250 million Years ago.

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11y ago

About 65 million years ago.

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Q: When did the dinosaurs became extingt?
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Is this how you spell extingt?

The correct spelling is extinct.


What major group flourished only after the dinosaurs became extinct?

the dinosaurs became extinct because the was kill of there family


When was dinosaurs in this world?

The last dinosaurs became extinct 65 million years ago.


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At some point, there was a common ancestor that diverged into the line the became dinosaurs and the one that became humans, so yes, we are related to dinosaurs (and everything else that's alive on this planet).


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How did dinosaurs change during the Cretaceous period?

No. If you count birds as dinosaurs, they still exist. If you don't, dinosaurs became extinct at the end of the Cretaceous, not the beginning.


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I think they became extinct at the end of the Mesozoic era


When did the dinosaur's become extinct?

Non avian dinosaurs became extinct 65.5 million years ago, at the end of the Cretaceous. However, birds are considered dinosaurs. Because birds still exist, dinosaurs are not completely extinct.


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most of the dinosaurs lived everywhere but when the continents split they became extintdinosaur lover!!!!!!!!.......... :~) novanet


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Dinosaurs became extinct millions of years ago. Dinosaurs died off long before humans came into existence.


Are Catfish going extinct?

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