1. To which geologic eon do the Devonian, Mississippian, Pennsylvanian, and Jurassic periods belong?

2. Arrange the Devonian, Mississippian, Pennsylvanian, and Jurassic periods in order from oldest to most recent.

3. Are the youngest rocks in Michigan’s Lower Peninsula located at the center or the outside edges of the state?

4. Did the last Ice Age take place before or after these shales, limestones, and sandstones were deposited? How do we know?

5.   identify the geologic age of the bedrock that makes up Bois Blanc Island.