Paleontologists may have discovered when plant-eating dinosaurs evolved their long necks after a new species of sauropodomorph was found in Argentina. The fossils of the new dinosaur species, named ...

High in the Argentinian Andes, a team of palaeontologists has found a small dinosaur fossil with the first hints of the extended neck that distinguishes sauropod dinosaurs like Diplodocus. Named ...

The world's most unusual dinosaur is even stranger than first realized. Research published in Nature reports that Spicomellus afer had a tail weapon more than 30 million years before any other ...

National Park Service employees may have just uncovered one of the longest dinosaurs on Earth. Crews working on construction at the Dinosaur National Monument’s Utah parking lot last September ...

Add Yahoo as a preferred source to see more of our stories on Google. A reconstruction of a Late Jurassic Dry Mesa Dinosaur Quarry ecosystem around 150 million years ago which shows a diverse array of ...

A dinosaur that roamed modern-day Morocco more than 165 million years ago had a neck covered in three-foot long spikes, a weapon on its tail and bony body armor, according to researchers who unearthed ...

WASHINGTON — It may have been suicidal for a predator to go after a healthy adult Brachiosaurus, a behemoth weighing perhaps 60 tons that was a member of the long-necked group of dinosaurs called ...