The dimetron, was not a dinosaur but looked very similar. In fact it is closer to the first mammals to reptiles.
This ancestor of mammals was the dominant predator of its time, during the Permian period of the Paleozoic era, made between 280 and 260 million years.
Could reach 3 meters long and had a long tail. A short legs and an elongated body provided them with a motion similar to those of the current monitors.
Another feature is its teeth Dimetrón two different types of teeth: a Shredder and a very sharp cuspids heartbreaking.
But the most distinctive feature is the spectacular dimetrodonte sail on its back. The candle used it, probably, to regulate body temperature because their large surface area allowed to warm up or cool efficiently. The flap was supported by the neural spines, each one sprang from an individual vertebra. You may also wear the dorsal fin in the courtship of mating or to ward off other predators.
The Dimetrón was a fierce predator that used two pairs of sharp pointed canines for tearing the skin of their victims. With the jaws closed, the Dimetrodon appeared to be smiling, but when he opened and showed his wide mouth, his appearance was not friendly at all. His jaws were so large that probably could devour animals of the same size.