Discover the City of Chengdu
By Zac Healy. All countries were in fact joined together to form a supercontinent, also known as Pangaea which was formed approximately 250 million.
Objectives
Objectives Describe the geologic time scale. The Geologic Time Scale Distinguish among the following geologic time scale divisions: eon, era, period,
WILL DINOSAURS RETURN?
Dinosaur Physiology
