Geologic Time Scale Review

Another name for the Mesozoic Era?

Which of the following are true about the geological time scale

What is the Cenozoic Era known as?

Did dinosaurs thrive in the Paleozoic Era?

What was the era right BEFORE the Mesozoic Era?

What was the era right AFTER the Mesozoic Era

What length does the geologic time scale cover?

What are the 4 Eras that make up the geologic time scale?

The Mesozoic Era was known as the "age of the reptiles"

What happened at the end of the Paleozoic Era?

What is the Geological Time Scale used for?

_is when a large percentage of organisms cease to exist, marking change in geologic time.

How is the geologic time scale divided?

Scientists studied rock layers and fossils worldwide to develop the Geologic Time Scale

The geologic time scale is a scientific model of what?

Cenozoic

When did the percambrian time end?

Precambrian time began with the _______ .

Which of these animals were alive during the Cenozoic Era?

What is the basic cause of extinction of species over time?

The Precambrian Time, covers about _____% of the history on the Geologic Time Scale.

In the Paleozoic Era

During the Paleozoic era, what was more populated?

Very few fossils survived from the Precambrian Time period.

The Cenozoic Era has ended

Geologic time begins with a long span of time called......

How do geologists use the geologic time scale?    

During which geologic time division did trilobites live in?

We are still in the Cenozoic Era

What is the Geologic Time a Scale used for?

How was the geologic time scale created?

Is Precambrain Time the Earliest time in earths history?

What is the era of middle life; a time of many changes on Earth?

How many divisions are in the geologic time scale?

Cenozoic Era life-forms include ___.

Which is not an era in the geologic time scale

Geologic Time Scale

The Mesozoic Era ended due to...

Did Dinosaurs live in Mesozoic Era