Dimetrodon, an apex predator during the Early Permian period of time.

AMNIOTE • ANIMAL SCALE • ANIMAL TAIL • ANIMAL TEETH • ANIMAL THEMES • ANIMAL • APEX PREDATOR • ARTWORK • BACKBONE • BEAST • CARNASSIAL • CARNIVORE • COG • COLOR IMAGE • COLOUR IMAGE • CREATURE • DAY • DENTITION • DENTURE • DIMETRODON • DINOSAUR • DINOSAURS • EVOLUTION • EXTINCT • FANG • FIERCE • HORIZONTAL • ILLUSTRATION TECHNIQUE • ILLUSTRATION • ILLUSTRATIONS • LATERAL VIEW • LIFE • NATURAL HISTORY • NATURAL SCIENCES • NATURE STUDY • NO PEOPLE • ONE ANIMAL • OUTDOOR • OUTDOORS • OUTSIDE • PAINTING • PALAEONTOLOGY • PALAEOZOOLOGY • PALEONTOLOGY • PALEOZOIC ERA • PALEOZOOLOGY • PAST • PELYCOSAUR • PERMIAN • PREDATOR • PREHISTORIC ERA • PRIMITIVE • PRONG • REPTIL • REPTILE • REPTILES • SCIENCE • SCIENCE: EVOLUTION • SCISSOR TOOTH • SECTORIAL • SET OF TEETH • SIDE VIEW • SPECIES • SPINE • SYNAPSID • TEETH • TOOTH • TOUGHNESS • VERTEBRAE • WHITE BACKGROUND • WILDLIFE • WITHOUT PEOPLE • ZOOLOGY