How to pronounce “trilobite” in English

Trilobites lived something like 238 million years-- way longer than humans have been on Earth by a factor of 100, I guess-- factor of 100, not 100, a factor of 100.

So when the same type of trilobites are found in rock layers in two different places, we can assume they’re around the same age.

So you still have things like trilobites, which are these sort of horseshoe crab looking things scuttling around.

Like, trilobites were on Earth for a limited time— and different types of these creepy crawlies had brief moments to shine.

period, where people actually go to find trilobites.

And you can walk around in Ithaca-- you don't have to be any sort of amazing geology guy-- and you can find trilobite fossils, zillions of them.