Index Fossils Lesson

To be considered an index fossil, a fossil must be rare (found in select places).

• True
• False

To be considered an index fossil, it had to have lived for a relatively short period of time.

• True
• False

The Principle of Superposition states that the oldest layer of rock is located at the/a...

• Top
• Bottom
• Middle
• Random Location

Index fossils CAN tell us the age of a rock layer.

• True
• False

Index fossils CAN tell us the type of rock that is found in a layer.

• True
• False

What is any evidence of ancient life called?

• Half-life
• Fossil
• Unconformity
• Uniformitarianism

"The present is the key to the past" is a way to describe which of the following principles?

• Uniformitarianism
• Superposition
• Succession
• Uncomformity

Which rock layers contained the same index fossils at Zion and the Grand Canyon?

• Kaibab Formation and Z1
• Supai Group and Z1
• Toroweap and Z2
• Supai Group and Z7

Which of the following is the youngest rock layer in the "Index Fossil Correlation?"

• Hermit Shale
• Z4
• Z6
• B6

Which of the following is the oldest rock layer?

• Toroweap
• Z2
• B1
• B9