Geologic Time Vocabulary

Front

Which geologic time division is the youngest? Options: Precambrian Time, Paleozoic Era, Mesozoic Era, Cenozoic Era

Back

Cenozoic Era

Front

Which of these was not in the Mesozoic Era? Triassic Period, Silurian Period, Jurassic Period, Cretaceous Period

Back

Silurian Period

Front

Which of the following statements is correct?

• It is estimated that Earth formed approximately 4.6 billion years ago.
• Geologic Time Scale outlines the life forms on Earth and Earth's geologic history.
• The Phanerozoic Eon is subdivided into 3 eras: the Palaeozoic, Mesozoic, and Cenozoic.

Back

All of the above are correct.

Front

What is the largest interval of geologic time scale?

Back

Eon

Front

Eras are subdivided into shorter time division called ______________.

Back

Periods

Front

Periods are subdivided into shorter time division called ______________.

Back

Epochs

Front

Which era is known as the age of dinosaurs?

Back

Mesozoic Era

Front

Which era is known as the age of mammals?

Back

Cenozoic Era

Front

The term _____________ means “ancient life”.

Back

Paleozoic

Front

The ____________ Era is known as the era of recent life.

Back

Cenozoic