Eons Season 2018 Episode 6 From the Cambrian Explosion to the Great Dying ( Air Date 2018-02-20 ) Genre Documentary category. Overview "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.".