Dinosaur bones are like trees—every year is represented by a new ring, and paleontologists can count those concentric circles ...

Paleontologists have found a massive dinosaur footprint, measuring a full 92 centimeters (roughly 35 inches) across. This colossal footprint hints at the existence of a truly gigantic dinosaur – ...

Spinosaurus was unlike any other carnivorous dinosaur ever discovered. Larger than Tyrannosaurus rex, it hunted in rivers and wetlands across ancient North Africa. Its long snout, conical teeth, and ...

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Using polarised light, the team identified previously unknown growth marks that had gone undetected in earlier studies. These ...

A study of fossil bones shows Tyrannosaurus rex kept growing until around age 40, challenging long-held ideas about dinosaur ...

There is no question that Tyrannosaurus rex got big. In fact, this fearsome dinosaur may have been Earth's most massive land ...

“The snout bone was hollow rather than solid, and the bones around the eye didn’t have all the horns and bumps seen in T. rex or other tyrannosaurs.” Khankhuuluu mongoliensis, or a closely related ...

(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 ...