Index Fossil

Examine the image here. Hint: Use the slides to get a better view. Which organism(s) appeared after the trilobites

• Gastropod

• Trilobite

• Crinoid

• Coral

• Ammonite

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Examine the image here. Hint: Use the slides to get a better view. Trilobites appeared on Earth __________ gastropods

• before

• after

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Examine the image here. Hint: Use the slides to get a better view. Gastropods appeared on Earth ____________ ammonites.

• before

• after

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

What is the main reason that Michigan's petosky stone (coral fossil from the Denovian period) is NOT a good index fossil?

• it is no easily recognizable

• it did not became extinct quickly

• it is not globaly widespread

• it is not abundant

According to the law of superposition, which layer is the youngest?

• A

• B

• C

Tags

NGSS.MS-ESS1-4

Index fossils are fossils that help determine the _____ of other fossils and rock that are found in the same sedimentary layer.

• age

• location

• fossil

• origin

Tags

NGSS.MS-ESS1-4

Index fossils must be _____ and easily recognizable.

• old

• new

• alive

• distinctive

Index fossils are _____ widespread.

• never

• globally

• locally

• possibly

Index fossils are limited to a _____ period of geologic time

• long

• extended

• short

• extinct

Index fossils are usually from _____ organisms

• soft-bodied

• hard-bodied

• terrestrial

• bacterial

Tags

NGSS.MS-LS4-1