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The first era of our current eon, the Paleozoic Era, is probably the most deceptively fascinating time in Earth’s history. With near-constant revolutions in life, punctuated by catastrophic extinctions, it is also one of the most chaotic.

Correction! At 9:19, we erroneously refer to Dimetrodon as an herbivore. It was definitely a carnivore. We even made a whole video about Dimetrodon and their carnivorous ways in a previous episode:    • Dimetrodon: Our Most Unlikely Ancestor   Thanks to everyone who pointed out our error!

Thanks to Studio 252mya for their illustrations. You can find more of their work here: https://252mya.com/licensing

Produced for PBS Digital Studios.

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