Permian Period.
Permian :)
dimetrodon and edaphosaurus
Dimetrodon was a species of synapsid that roamed the Earth, during the Early Permian era. It had a large sail on it's back that may have been used for regulating body temperature. It was an apex predator and may have preyed on Edaphosaurus.
Dimetrodon live in the Permian period, which was before the dinosaurs.
You could be talking about spinosaurus, which had a large fan shaped portrusion coming out of its back, or you could be talking about the permian early reptiles, dimetrodon and edaphosaurus. Neither of which were dinosaurs.
The Dimetrodon first appeared in the Paleozoic era, which held the Permian period.
All of the Trilobites, Pelycosaurs, Gorgonopsians, Dimetrodon, Edaphosaurus, Pariesaurs, most of the ammonites, amphibians, and jawless fish, plus many more.
dimetrodon was the dominANT SPECIES OF THE permian period
The scientific name for the dimetrodon is Dimetrodon.
Dimetrodon was a mammal-like reptile that lived during the Permian period, which was before the dinosaurs came. It had a large saill on its back, probably to warm its body up. It walked on 4 legs and hd a tail.
Dimetrodon genus (and specially the Dimetrodon limbatus species) went extinct around 40 My before the appearance of the first dinosaur during the Triassic period of the Mesozoicera.Spinosaurusgenus appeared only during the Late Jurassic.There is no possible direct genetic connection between Spinosaurus(a dinosaur therapod) and Dimetrodon (a synapsid mammelian reptil that left no descendents after the «Great Dying», the Permian mass extinction).
but i cant
slow