Dimetrodon is an extinct genus of synapsid that lived during the Early Permian period, about 295–272 million years ago. It was one of the earliest and most successful of the large predators, and the largest known member of the family Sphenacodont
Dimetrodon is an extinct genus of synapsid that lived during the Early Permian period, about 295–272 million years ago. It was one of the earliest and most successful of the large predators, and the largest known member of the family Sphenacodont