This is CBS I On The World.

Here's John Bachelor.

Thomas Halliday, the author of the new book, Other Lands, a journey through Earth's extinct

worlds.

Thomas is a paleontologist and an evolutionary biologist.

We'd go now to some part of human history that is present in the 20th century, a very

famous movie called Jurassic Park.

While we're going to the real Jurassic, 155 million years ago.

This is a time that Thomas reports was time for recovery from an extinction event that

happened some 50 million years before the Triassic Jurassic extinction.

We're now in a piece of land that we think of as Germany today, Swabia Germany.

And why this is all important is that we're looking at the recovery from what I presume

was a climate change extinction.

Is that correct Thomas?

Is that the thinking about what happened?

The Triassic Jurassic extinction is one of the most hotly debated extinctions in terms

of cause.

But the leading candidate for this is that you run away climate change because we

have had a sort of emission of self-adulterate side, carbon dioxide, all of these sort of

gases that warm the atmosphere and acidify the oceans.

And so when I'm talking about this as a time of recovery, what it's particularly a time

of recovery for is marine reptiles, which are almost the classic organisms from the Jurassic.

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