Cenozoic
Geologic period
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The Cenozoic is Earth's current geological era, representing the last 66 million years of Earth's history. It is characterised by the dominance of mammals, birds, and angiosperms. It is the latest of three geological eras, preceded by the Mesozoic... Wikipedia
Length: about 65 million years
Nickname(s): Age of Mammals
Periods: Paleogene, Neogene, and Quaternary
Occurred: 66 million years ago - 0 million years ago
Eon: Phanerozoic
Celestial body: Earth
Chronological unit: Era