ATHENS, Ohio (May 21, 2013)—The mighty T. rex may have thrashed its massive head from side to side to dismember prey, but a new study shows that its smaller cousin Allosaurus was a more dexterous ...

Allosaurus was among the earliest dinosaur discoveries, and fossils are plentiful, making it a darling of paleontologists, as well as amateur dinosaur observers. Fossils possibly belonging to ...

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 ...

Fossils found covered with ancient bite marks suggest at least one type of large dinosaur was in such dire straits, it began dining on members of its own species. A remarkable 29 percent of 2,368 ...

(CN) – Scientists have discovered a new species of allosaurus in northeast Utah – only the second of its kind known to have roamed what is now North America in the Jurassic period. In a study ...