A new look at the "Dueling Dinosaurs" fossil reveals that Tyrannosaurus rex was not the only tyrannosaur roaming the land.

Nanotyrannus lethaeus was a fast, agile predator distinct from T. rex, with longer legs, stronger arms and a body built for ...

The new species is called Nanotyrannus. Compared to the well known tyrannosaurus rex, a nanotyrannus was more speedy and ...

What if everything we know about T. rex growth is wrong? A complete tyrannosaur skeleton has just ended one of paleontology's ...

Fossils paleontologists initially thought belonged to a juvenile Tyrannosaurus rex actually belong to a new species of ...

A new dome-headed dinosaur species was discovered in Montana, a study released this month shows. Researchers discovered the ...

A dinosaur fossil discovery by a researcher from The University of Texas at El Paso may expand the known range of a species ...

Argentine scientists reveal Chucarosaurus diripienda, a giant 30-meter titanosaur found in Patagonia that challenges ...

A pair of Edmontosaurus specimens found in a Wyoming dig help researchers to understand the process that led them to be ...

A new study sheds light on how these reptiles become “mummies” and paints a picture of what these ancient animals looked like ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, ...

Paleontologists spotted injuries on the tails of duck-billed dinosaur fossils that might have occurred during mating.