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Earth's Eons: The Cambrian Period The Cambrian Period lasted for about 53 million years and marks the beginning of the Paleozoic Era, the first era of the most recent Eon, the Phanerozoic. It is best known for the Cambrian Explosion, a relatively rapid diversification of animal life during which many major animal groups first appeared in the fossil record. #science #learnontiktok #tiktoklearningcampaign #stem #evolution
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