Geological Time Scale and Eras

Front

What is the geological time scale?

Back

The geological time scale is a chronological framework that organizes Earth's history into eons, eras, periods, epochs, and ages.

Front

Which era is known as the 'Age of Reptiles'?

Back

Mesozoic Era

Front

What marks the beginning of the Phanerozoic Eon?

Back

The appearance of the first multicellular life forms.

Front

During which period did the first mammals appear?

Back

Triassic Period

Front

Which period is known for the dominance of dinosaurs?

Back

Jurassic Period

Front

What event marks the end of the Mesozoic Era?

Back

The extinction of the dinosaurs.

Front

Which eon is known for the appearance of abundant animal life?

Back

Phanerozoic Eon

Front

What marks the beginning of the Cenozoic Era?

Back

The extinction of the dinosaurs.

Front

During which period did the first land plants appear?

Back

Silurian Period

Front

During which period did the first flowering plants appear?

Back

Cretaceous Period