The Break-Up of Pangaea was conceived as a gratis promotional item, to be distributed by Harper & Row salesman to potential users of the parent book, Physical Geology, by the same authors. The flip drawings were also printed into the present textbook.
The Break-Up of Pangaea is a flip book containing forty illustrations that animate the break-up of the single landmass called Pangaea (starting with 200 million years ago) into the map of the world as we know it today.