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That depends whether you believe in the view of modern science, which says it was millions of years ago..... or alternative history, in which case it could be only about 20,000 years ago.
If you read the works of Edgar Cayce on the Origins of man he talks of times when Atlantis was still a great continent, and people from many places on Earth got together to discuss the problem of giant creatures which were a great danger to man, and how to get rid of them.
I can only assume they meant carnivorous dinosaurs, and since Atlantis finally disappeared beneath the ocean about twelve thousand years ago, they may have been around much later than modern science tells us.
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What time will the ocean be extinct?
the ocean cant become extinct.
What time period was it when the Euridian Fauna became extinct?
The Euridian Fauna was the first ever animal to become extinct and was around in the Precambrian times. There are only fossils to prove this but many geologist have proved this.
What time did triceritops become extinct?
when you died
Was Mount Vesuvius extinct?
No, people just think that it was extinct because it had not erupted in a long period of time.
Doe human can become extinct?
Any species will become extinct in time, including humans.
When did pterosaurs become extinct?
the same time as dinos became extinct. 65 million years ago
Why did Segnosaurus become extinct?
The same time as all the others
How many volcanos went extinct?
We do not know for sure but over geological time millions of volcanoes have become extinct.
What time did the American lion become extinct?
About 11,000 years ago.
When will pandas become extinct if we keep doing what you are doing?
If we all did what I do, pandas would have been extinct a long time ago.
When did ammonites become extinct?
Ammonites went extinct at the same time as the dinosaurs, about sixty-five million years ago.
When did dinosuars go extinct?
65 Million years ago, in the Cretaceous time period.
