Wherever you find dinosaurs, chances are that Dimetrodon is close by. The sail-backed creature is a staple of museum displays, boxes of sugar-saurus cookies, and sets of plastic dinosaurs, and I have ...

HOUSTON The discovery is a big deal because Dimetrodons predate ordinary dinosaurs by a mere 200 million years or so. They slowly moved across the earth long before there were dinosaurs, frogs or even ...

Before the dinosaurs Before dinosaurs walked the Earth, there was a meat-loving beast called Dimetrodon, which researchers just determined had the first known serrated "steak knife" teeth. Dimetrodon ...

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 ...

Where's my Dimetrodon hive? It's our damn day. Though Jurassic World: Dominion may have...been what it is, there's one thing the film absolutely nailed. Almost 30 years since Steven Spielberg's ...

Early Permian (295–270 Ma) sphenacodontid synapsids are of importance as they are the first large-bodied (up to 300 kg) apex predators in the evolutionary history of terrestrial amniotes 1. For 25 ...

Like pterosaurs, ichthyosaurs and plesiosaurs, Dimetrodon, while commonly mistaken for a dinosaur, isn’t actually a dinosaur. In fact, unlike pterosaurs, ichthyosaurs and plesiosaurs, Dimetrodon isn’t ...

At first it had no name. The beast was a mammal relative with a heavy skull, a mouth full of fangs, and a tall dorsal sail made of skin stretched over long struts of bone. Sinuous as a crocodile, ...

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 ...

Joshua Rapp Learn is an award-winning D.C.-based science journalist who frequently writes for Discover Magazine, covering topics about archaeology, wildlife, paleontology, space and other topics. View ...

A Dimetrodon milleri lurks in the Harvard Museum of Natural History’s Romer Hall, the museum’s vertebrate paleontology room. About six feet long from tail tip to snout, the dimetrodon resembles a ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The First Church of Christ, Scientist, and we’ve always been transparent about that. The church publishes the ...