FA-Index Fossils, Unconformities, and Geologic Columns-Modified

What two layers from column 1 and column 2 are the SAME age?

• Layer A and Layer E

• Layer A and Layer F

Tags

NGSS.MS-ESS1-4

Index fossils serve to identify

• specific layers of rocks anywhere and how old those layers may be.

• how thick a given rock layer should be. 

Tags

NGSS.MS-ESS1-4

An index fossil is most useful if it is a fossil of an organism that existed a brief time over a wide area.

• TRUE

• FALSE

Tags

NGSS.MS-LS4-1

From location W and location Y, which number of fossils are the same?

• 1 and 5

• 1 and 6

Tags

NGSS.MS-LS4-1

From location X and location Y, which number of fossils are the same?

• 4 and 5

• 3 and 5

Tags

NGSS.MS-LS4-1

The best index fossils have which three traits?

• widespread geographically, long lifespan
• abundant, widespread geographically, short lifespan

According to the law of superposition, the oldest fossils are found

• At the top of the rock layers

• Near the bottom of the rock layers

Tags

NGSS.MS-ESS1-4

_{Which rock layer contains the newest fossils?}

• B

• F

Tags

NGSS.MS-ESS1-4

What fossil has lived the longest?

• 
• 

Tags

NGSS.MS-LS4-1

Which fossil is only found in one rock layer?

• 
• 

Tags

NGSS.MS-ESS1-4