Phanerozoic Eon (~541 million years ago — present) The “Quaternary Period” – A Miraculous Era We Live In Today Even as you read this sentence, the Earth is in a geological era known as the "Quaternary Period" (or "Fourth Period").T... Phanerozoic Eon (~541 million years ago — present)
Phanerozoic Eon (~541 million years ago — present)