This is an article by Andrew Campbell from The University of Chicago Magazine, December 1995. The article is about the Chicago's Paleogeographic Atlas Project, an effort Alfred Ziegler began in 1975 to chart Earth's changing face, from more than 500 million years ago to the present. The article contains four maps from the project: A Permian Supercontinent, Computers Rebuild Climates of the Paleozoic, Birth of an Ocean, and The Aging of the Appalachians. Each of the maps is accompanied by a paragraph describing them in detail.
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