Index Fossils

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

• True
• False

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Which rock layer most likely contains fossils of the most recently evolved organisms?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

The Law of Superposition helps scientists to determine what?

• The absolute age of rock layers
• The age of fossils
• The relative age of rock layers
• the super powers of rocks

Tags

NGSS.MS-ESS1-4

Index fossils help determine relative age through correlating rock layers.

• True
• False

Tags

NGSS.MS-ESS1-4

Does the picture represent relative or absolute dating?

• relative
• absolute

Tags

NGSS.MS-ESS1-4

What is the best reason that fossil #4 is NOT a good index fossil?

• It is not widespread

• it is not short-lived (in numerous layers)

• It is in half of the outcrops

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

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

• True
• False

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1