Researchers long considered a fossilized jawbone housed at the Academy of Natural Sciences of Drexel University to contain a specimen of a unique reptilian from the Permian Age. But a new discovery ...

Dimetrodon had a mouth full of novelty. Most conspicuous were several different tooth types in the sail-backed protomammal’s jaws – incisor-like teeth for gripping, stabbing canines, recurved rear ...

When most people think of ferocious, blade-like teeth on prehistoric creatures they picture Smilodon, better known as the saber-toothed tiger. But in the world of dinosaurs, theropods are well known ...

Dimetrodon, one of the most recognisable of the pre-dinosaur predators, is due a makeover. For more than a century, it has been depicted as a sluggish, belly-dragging beast with sprawling legs – but ...

Dimetrodon was the largest predator of its time, preying on giant amphibians nearly 300 million years ago during the Early Permian period. “They were eating basically whatever they wanted,” says ...

Take a close look and you might see a little bit of yourself. With its lizard-like appearance and that distinctive sail on it back, Dimetrodon is practically the mascot of the Palaeozoic Era, a time ...