Geological Time Scale

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What is the Geological Time Scale?

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A system used by geologists and paleontologists to describe the timing and relationships of events in Earth's history.

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What era are we currently living in?

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Cenozoic Era.

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How old do scientists believe the Earth is?

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Approximately 4.6 billion years old.

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What time period did jellyfish first appear?

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Precambrian Time.

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What is the most recent era of geological time?

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Cenozoic Era.

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What major event is referred to as 'The Great Dying'?

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The mass extinction event that occurred 252 million years ago at the end of the Permian Period.

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What is the Precambrian Time?

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The earliest part of Earth's history, covering about 88% of Earth's timeline.

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What significant event occurred during the Paleozoic Era?

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The Cambrian Explosion, which saw a rapid diversification of life.

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What does the term 'mass extinction' mean?

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A significant and rapid decrease in the biodiversity on Earth.

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What is the Mesozoic Era known for?

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The age of dinosaurs and the emergence of mammals and birds.