WASHINGTON — A dinosaur fossil at the Smithsonian's National Museum of Natural History is celebrating a big achievement for one of its fossils. Its fossilized skeleton of the Jurassic dinosaur ...

A remarkable new species of meat-eating dinosaur has been unveiled at the Natural History Museum of Utah. Paleontologists unearthed the first specimen in early 1990s in Dinosaur National Monument in ...

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The Smithsonian National History Museum’s fossil specimen of Allosaurus fragilis is perched like a nesting bird guarding a clutch of fossilized eggs. (Courtesy USNM V 4734, Department of Paleobiology, ...

SALT LAKE CITY, Utah — Allosaurus was a fierce predator at the top of the dinosaur food chain millions of years before Tyrannosaurus rex claimed its “king of the dinosaurs” title and researchers have ...

The early cousin of Tyrannosaurus rex had a much weaker bite than the most fearsome predator ever to roam Earth, so it may have relied on the sharpness of its teeth and a tough but lightweight skull ...

Being referred to as thickheaded isn’t exactly a compliment. Depending on your lifestyle, however, you just might need a skull that can occasionally take a good smack. Consider a carnivorous dinosaur ...

Allosaurus was a fierce predator at the top of the dinosaur food chain millions of years before Tyrannosaurus rex claimed its “king of the dinosaurs” title and researchers have now discovered the ...