3 million years ago The massive force of an earthquake causes layers of sediments to tilt and push upward.
	Today Forces of erosion, such as water moving against rock for millions of years, gradually wears away the land surface and a few of the rock layers beneath it. The fossilized bones of the horse, hidden for millions of years, are exposed above the ground.

Scientific Names | Toe Tales | Fossil Gallery | Time Scales | Stratigraphy | Home