Until now, estimating how old a dinosaur was when it died has been a fairly simple process — just count up the growth rings in its fossilized bones. "We always thought that those rings were formed ...

Spinosaurus was one of the largest and most mysterious predatory dinosaurs ever discovered, a gigantic sail-backed hunter ...

Paleontologists in Argentina have discovered a new predatory dinosaur -- the fossils of which contained a crocodile bone within the dinosaur's mouth. The new species, dubbed Joaquinraptor casali, is ...

Researchers in Australia have confirmed that a crocodile that lived 93 million years ago ate a juvenile dinosaur as its last meal. Fossils of the crocodile Confractosuchus sauroktonos, which means ...