Geologic Time Scale Flashcard

Front

When did Mammals evolve?

Back

Cenozoic Era

Front

During which era were the first land plants formed?

Back

Paleozoic Era

Front

Human beings evolved during which geological era?

Back

Cenozoic

Front

During which era did Pangaea break up?

Back

Mesozoic Era

Front

The Geologic time scale is subdivided into 4 groups. List them beginning with the largest.

Back

Eon, Era, Period, Epoch

Front

What is the largest division of geological time?

Back

Eon

Front

What era is known for the dominance of dinosaurs?

Back

Mesozoic Era

Front

What significant event marks the end of the Paleozoic Era?

Back

The Permian-Triassic extinction event.

Front

What era follows the Mesozoic Era?

Back

Cenozoic Era

Front

What is the significance of the Precambrian Time?

Back

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