COLUMBUS, Ga. - Paleontologists have identified a new dinosaur species, an early relative of Tyrannosaurus rex that probably roamed what is now the Southeastern United States about 77 million years ago. The scientists made the identification from hundreds of fossilized fragments collected mostly in Montgomery County, Ala., and southwestern Georgia. They named the new dinosaur Appalachiosaurus montgomeriensis, which means "the Appalachian lizard from Montgomery County." The 25-foot-long creature roamed the earth 10 million years before T. rex and was smaller and more primitive, with a narrower snout. David R. Schwimmer of Columbus State University; Thomas Carr of Carthage College of...