The Carnegie Museum's Tyrannosaurus rex specimen -- the first of its kind found -- served as the basis for the original description of the species. Discovered in 1902, ...

The Tyrannosaurus rex specimen at the Carnegie Museum of Natural History is the holotype, or the specimen used to scientifically name and describe the species. (Image credit: ...

The Carnegie Museum of Natural History in Pittsburgh, home to the Tyrannosaurus rex holotype and a famous Diplodocus, will benefit from Carole and Daniel Kamin’s donation.

And the Carnegie T. rex is a big one. The complete femur of the dinosaur is about 4.2 feet long, and the latest analysis of the whole animal estimates that it was just over 39 feet long and ...

And Carnegie's Lamanna can put the last bone back into the first T. rex, which Lamanna says is staying put in Pittsburgh. "This is the type specimen of the Tyrannosaurus rex ," he says. "I mean ...

Researchers at the Carnegie Museum of Natural History on Thursday unveiled what they say is the most complete Tyrannosaurus rex skull ever discovered. Nicknamed "Samson," the skull may challenge ...

PITTSBURGH, May 14 (UPI) -- Paleontologists at the Carnegie Museum of Natural History in Pittsburgh Friday unveiled the most complete Tyrannosaurus rex skull ever found. Named "Samson" for its ...

The first Tyrannosaurus rex I ever met was horribly out of date. Propped upright in the Cretaceous dinosaur hall at the American Museum of Natural History, the snarling tyrant held the same tail ...

Tyrannosaurus Rex, king of the dinosaurs 08:11. The Tyrannosaurus rex is often shown baring massive, sharp teeth, like the ferocious creature in "Jurassic Park." ...

A reexamination of fossils found in Mongolia has revealed a previously unknown “missing link” species that led to dinosaurs ...

A mere 2.9 miles per hour is actually slower than most adult humans walk, so while it could have bit you in half if it wanted to, chances are you would beat the Tyrannosaurus rex in a walking race.