Geologic Time Review

Front

Which era is known as the age of the dinosaurs?

Back

Mesozoic

Front

Name the era characterized by many continents, hot and humid climate, and dinosaurs.

Back

Mesozoic

Front

Which era is known as the age of the mammals?

Back

Cenozoic

Front

What is the smallest unit of geological time?

Back

Epoch

Front

What is the largest unit of geological time?

Back

Eon

Front

What are the three main eras of the Phanerozoic Eon?

Back

Paleozoic, Mesozoic, Cenozoic

Front

What significant event marks the end of the Mesozoic Era?

Back

The mass extinction event that wiped out the dinosaurs.

Front

What is the significance of the Precambrian Era?

Back

It covers the formation of Earth and the earliest life forms.

Front

Define 'period' in geological time.

Back

A period is a subdivision of an era, characterized by specific geological and biological events.

Front

What major developments occurred during the Paleozoic Era?

Back

The emergence of fish, amphibians, and the first land plants.