It had a two meter high sail on its back like Dimetrodon.

The genus Dimetrodon survived until about 270 million years ago.

Although some Dimetrodon species could grow very large, many juvenile specimens are known.

Some, such as Dimetrodon, had large sails that may have helped raise their body temperature.

Dimetrodon was a carnivore, probably the top predator in its environment.

Smaller Dimetrodon species may have had different ecological roles.

Many, like 'Dimetrodon', had large sails that may have helped thermoregulation.

The pelvis is nearly identical to that of Dimetrodon.

It was not until 1927 that a largely complete tail of Dimetrodon was described.

Great big and fearsome Dimetrodon, a species of dinosaur, was the most powerful creature.

It may have been possible for this species to outpace and escape large predators such as Dimetrodon.

The limbs and tail are incompletely known but probably resembled those of Dimetrodon as well.

It was a herbivorous relative of the well-known Dimetrodon.

'Dimetrodon' was not a dinosaur, despite being popularly grouped with them.

The serrations of Dimetrodon teeth were so fine that they resembled tiny cracks.

Texas was also home to the pelycosaurs Dimetrodon and Edaphosaurus.

Thriving also were the early ancestors to mammals, the synapsida, which included some large members such as Dimetrodon.

In evolutionary terms, Dimetrodon was a synapsid, a line of land animals which eventually gave rise to the mammals.

Dimetrodon belonged to the most primitive ecosystem, which developed from aquatic food webs.

As in many other early synapsids, the teeth of most Dimetrodon species are serrated at their edges.

He based this classification on its similarity with sail-backed pelycosaurs like Dimetrodon.

It may have been preyed upon by the large sphenacodont pelycosaur Dimetrodon.

However, the species Dimetrodon occidentalis is found in New Mexico.

Creatures such as Dimetrodon and Edaphosaurus ruled the new continent.

A Sphenacodontid, it was a close relative of Dimetrodon.