Sphenacodon ferox sexta_extincion The scene consists of Tylosaurus

The scene consists of Tylosaurus and three Pteranodons

Medidas aproximadas del Sarcosuchus:

Snout-tail length 275 mm

Snout-tail length 585mm

Spinosaurus had robust forelimbs with large claws

Sphenacodon ferox sexta_extincion The scene consists of TylosaurusSphenacodon ferox : A primitive predator on the path of mammals During the Early Permian, some 300 million years ago, terrestrial ecosystems were dominated by a diverse and constantly evolving fauna. Among the most prominent predators of that time was Sphenacodon ferox , a carnivorous synapsid that inhabited the regions that now constitute the southwestern United States. This animal, although extinct for hundreds of millions of years, represents a key