How to pronounce “ordovician” in English

But in the Ordovician, you had this steady decline of CO2, where it finally triggered this ice age at the end.

And then there's end Ordovician mass extinction, 445 million years ago.

And right at the end of the Ordovician-- oh, it's also you have incredibly high sea levels that sort of flood the continents, and a lot of things

So the first mass extinction is the end Ordovician.

And then right at the end of the Ordovician, there's this massive ice age.

I like to say this is a very authentic drawing of the early Ordovician seas, except for the scuba diver

There's Ordovician limestone that's approximately 270 million years old that used to be the shallow inland sea, the Tethys sea,

They did not find it for the end Triassic, or the end Permian, or the late Devonian, or the end Ordovician.

And all the action is in the ocean, where-- it's called the Sea without Fish, the Ordovician.

So the first, number one there, that occurred about 440 million years ago at the end of the Ordovician Period when most of life