Unearth the nine massive prehistoric animals that lived before dinosaurs ... The Dimetrodon lived during the early Permian Period, and while it looks reptilian, it’s not related to dinosaurs.

Long before dinosaurs ever walked the Earth, a terrifying predator ruled the land – and it was unlike anything alive today. In this video, we journey back to the Permian period to meet Dimetrodon, a ...

and roamed the forests of the Carboniferous period 358-298 million years ago before dying out in the early Permian. But what would happen if there were no constraints on the size of animals ...

Here are seven examples of animals that lived before the dinosaurs. The dimetrodon was a large reptile-like animal that lived during the early Permian period, about 40 million years before the ...

A former South African quarry is opening a window into an important period in the history ... form of a dominant group of animals known as synapsids. In the middle Permian, a type of synapsid ...

Despite Earth's most devastating mass extinction wiping out over 80% of marine life and half of land species, a group of ...

Surprising new fossil evidence undermines the idea that there was ever a mass extinction on land – and may force us to ...

plants and terrestrial and complex creatures such as animals that may have looked like dinosaurs but actually predated the dinosaurs,” he said. “The Permian was the last period of the ...

Therapsids, the ancient relatives of mammals, once roamed Earth in great numbers during the middle to late Permian period ... ranging group of four-legged animals, with only mammals surviving ...

Nobu Tamura/Wikimedia Commons The Triassic Period (252-201 million years ago) began after Earth's worst-ever extinction event devastated life. The Permian-Triassic extinction ... a group of animals ...

Among them were the chordates, to which vertebrates (animals with backbones ... survived until the mega-extinction that ended the Permian period 251 million years ago. A predator of the Cambrian ...

Known as the Great Dying, the mass extinction that ended the Permian geological period was the worst of ... and there weren’t many plants or animals that could do that.” A key reason the ...