The Tenontosaurus was a large ornithopod that walked on four legs and roamed during the Early Cretaceous period, around 110 to 120 million years ago. Believe it or not, the dinosaur wasn't officially ...

Add Yahoo as a preferred source to see more of our stories on Google. Fossil quarry hall at Dinosaur National Monument in Utah, July 6, 2013. (David Fulmer via Flickr CC 2.0) Construction crews have ...

Ever heard of Spicomellus afer? It has been described as one of the more unusual dinosaurs, and new research has only further confirmed this. Recently discovered fossils have revealed that its entire ...

A group of paleontologists unearthed the most complete fossil of a new species of a famed dome-headed dinosaur to date during a dig in Mongolia. The team found the pristine skeleton in the Khuren Dukh ...

The hills of Transylvania hold a story that feels almost impossible to fit into the palm of your hand. In a muddy streambed of the Hațeg Basin in western Romania, paleontologists have uncovered a ...

Paleontologists at the North Carolina Museum of Natural Sciences have discovered a new species of dinosaur called nanotyrannus lancensis. The discovery came after studying a fossil called "Dueling ...

Scientists have announced the discovery of damaged hemoglobin in the hollow, blood vessel–like structures of dinosaur fossils. The researchers used a novel technique they hope may put an enduring ...

Getting your Trinity Audio player ready... Parking lot construction at Colorado’s Dinosaur National Monument unearthed new fossils last fall, the first discovery at the monument in more than 100 years ...

Jason W. Ricketts, Ph.D., associate professor in The University of Texas at El Paso’s Department of Earth, Environmental and Resource Sciences, discovered fossils – identified as belonging to the ...

In the age of dinosaurs—before whales, great whites or the bus-sized megalodon—a monstrous shark prowled the waters off what's now northern Australia, among the sea monsters of the Cretaceous period.