Meaning - Dimetrodon means “Two measures tooth”
Length - 11.5 feet (3.5 m) long
|WHEN IT LIVED||
Permian period, about 280-245 million years ago (long before the dinosaurs appeared).
|WHERE IT LIVED||
Fossils have been found in Texas and Oklahoma in the USA, North America. Trackways (fossilized footprints) of Dimetrodon have been found in Nova Scotia, Canada.
Dimetrodon is known from many fossils and some footprints.
Dimetrodon had a large sail-like flap of skin along its back, dense with blood vessels. The sail was supported by long, bony spines, each of which grew out of a separate spinal vertebra (a bone in the back). The sail may have been a thermoregulatory structure, used to absorb and release heat. The sail may have also been used for mating and dominance rituals, and/or for making it look much larger to predators. Dimetrodon had sharp teeth and clawed feet.