Earth History

Front

What is the most recent era of time that we are currently in?

Back

Cenozoic

Front

Which time span lasted the longest in Earth's history?

Back

Precambrian

Front

What does the Geologic Time Scale record?

Back

The known history of rocks and fossils.

Front

Which era is known as the 'age of invertebrates'?

Back

Paleozoic

Front

In which era did the oceans and atmosphere form?

Back

Precambrian

Front

What are the four main eras of the Geologic Time Scale?

Back

Precambrian, Paleozoic, Mesozoic, Cenozoic.

Front

What significant event marks the beginning of the Paleozoic Era?

Back

The Cambrian Explosion.

Front

What major life forms dominated the Mesozoic Era?

Back

Dinosaurs.

Front

What is the significance of the Precambrian Era?

Back

It covers about 88% of Earth's history and includes the formation of the Earth and the earliest life forms.

Front

What major geological events occurred during the Cenozoic Era?

Back

The rise of mammals and birds, and the formation of modern continents.