Geologic Ages of the Earth

Front

Age of Earth

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Approximately 4.5 billion years

Front

Precambrian Time

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4.6 billion to 541 million years ago

Front

Paleozoic Era

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541 to 252 million years ago

Front

Mesozoic Era

Back

252 to 66 million years ago

Front

Cenozoic Era

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66 million years ago to present

Front

Dinosaurs lived during the Cenozoic Era

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False

Front

The Earth is older than the Moon

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True

Front

Cambrian Explosion

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Rapid diversification of life forms

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Pangaea

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Supercontinent during late Paleozoic and early Mesozoic

Front

Ice Age

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Periods of extensive glacial coverage