Sphenacodon ferox sexta_extincion with an estimated length of

with an estimated length of between 9 and 10 meters and a weight that could reach 5 tons

Spinosaurus had robust forelimbs with large claws

Medidas aproximadas del Sarcosuchus:

Este entorno habría ofrecido recursos alimentarios ricos y variados para un herbívoro de gran tamaño como Gobiatherium

Sphenacodon ferox sexta_extincion with an estimated length ofSphenacodon 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