Paleontologists have unearthed a nearly complete fossil of a dimetrodon, a reptile-like predator that roamed the Permian landscape 287 million years ago. This weekend, the team is working to transport ...

Paleontologists have unearthed a nearly complete fossil of a dimetrodon, a reptile-like predator that roamed the Permian landscape 287 million years ago. Subscribe to read this story ad-free Get ...

This is Dimetrodon, the world’s top predator about 270 million years ago. Living before the dawn of the dinosaurs, this striking creature was actual a distant ancestor of mammals like us. Now we’ve ...

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, ...

Whiteside Museum of Natural History director Christopher Flis (lying on the ground), and volunteers Stewart Nolan, son Travis, 13, and Leigh Cook work to unearth a Dimetrodon skeleton for the museum ...

This is the skeleton of Dimetrodon, an ancient relative of mammals. New research suggests that at least some species of Dimetrodon were active at night (nocturnal).

Just outside this small Baylor County, Texas, town, researchers at a new museum are carefully digging away, hoping to unearth a significant discovery. In a place where scientists have been poking ...