from plains to forest areas

the large long-necked dinosaurs

Medidas aproximadas del Edmontosaurus:

pointed beak

brevirostris) is an extinct genus of mammal that lived during the Miocene of the Neogen period

Sphenacodon ferox skeleton from plains to forest areasSphenacodon 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