443 Million Years Ago...
The ocean is starting to feel cold I wonder what is happening
Glaciation developed here, the sea level dropped, and the world became colder. This led to the extinction of many species
Oh no a ice age! I am probably going to die just like my brothers, sisters, jawed fish, and heavily armored placoderms!
Don't bother mentioning the entire 85% of sea life that will perish too...
Most of the sea life went extinct
Mean while the plants on land were doing great
wow only those organisms survied?
Organisms that survived include trilobites, brachiopods, corals, crinoids and graptolites
That's what happened in the Ordovician Silurian Extinction.
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