Its head was particularly striking

Medidas aproximadas del Edmontosaurus:

particularly in the Alberta region of Canada

Scale 1:72 - 115 mm large

Su cráneo medía hasta 1

Sphenacodon ferox skeleton Its head was particularly strikingSphenacodon 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