WASHINGTON (Reuters) - Surmising even the physical appearance of a dinosaur - or any extinct animal - based on its fossils is a tricky proposition, with so many uncertainties involved. Assessing a ...

Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type of dinosaur? At first, researchers had only a tyrannosaur skull to ...

The jaw fossil for Tyrannosaurus mcraeensis has key distinctions from T. rex. Paleontologists have discovered a new species of dinosaur that could be the closest-known relative of the famed ...

Two dinosaurs fossilized in combat, originally thought to involve a juvenile Tyrannosaurus rex testing its mettle against a Triceratops, actually feature a separate species frequently confused with ...

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 ...

With studies of fossilized bones, gut contents, eggshells and more, paleontologists revealed new and captivating details ...

Cara Tabachnick is a news editor at CBSNews.com. Cara began her career on the crime beat at Newsday. She has written for Marie Claire, The Washington Post and The Wall Street Journal. She reports on ...

The 67 million-year-old fossils were found in Hell Creek Formation in Montana. Fossils paleontologists initially thought belonged to a juvenile Tyrannosaurus rex actually belong to a new species of ...

Paleontologists confirm that the Tyrannosaurus rex locked in combat with a Triceratops in the famous Dueling Dinosaurs specimen is not a T. rex after all. In November, 2020, we celebrated the news ...