Abstract
The Phanerozoic period covers the last 542 million years of Earth’s history, about 12% of the history of our planet. With regard to the evolution of life, the Phanerozoic experienced major events such as the rapid diversification of multicellular organisms which first appeared in the Cambrian (541–485 Ma), the colonization of continental surfaces by living organisms during the Ordovician (485–444 Ma) and the appearance of the first hominids about 8 million years ago.
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