For years, the "dueling dinosaurs" in a North Carolina museum were believed to be a Triceratops and Tyrannosaurus rex. However, an article published on October 30 in the journal Nature has a different ...

While hiking through the fossil-rich terrain of North Dakota, three children made a discovery that paleontologists are calling one of the rarest in recent memory — the skeleton of an adolescent ...

(CNN) — Scientists have identified a previously unknown 86 million-year-old dinosaur species that fills an early gap in the fossil record of tyrannosaurs, revealing how they evolved to become massive ...

For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of ...

When you look at a fossil on display, you may envision the world 66 million years ago. You might feel the earth shake beneath you as a large predator stalks the ancient floodplain. It has long, sharp ...

Researchers now identify the "dueling dinosaur" tyrannosaur as an adult Nanotyrannus, not T. rex. "This fossil...flips decades of T. rex research on its head," says Lindsay Zanno. Study reveals ...

While Tarbosaurus, an ancestor of T. rex, clocked in at between 3,000 and 6,000 kilograms (6,613 pounds and 13,227 pounds), the fleet-footed Khankhuuluu mongoliensis likely weighed only around 750 ...

For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of ...