Illustration of a prehistoric era Diplocaulus.

AMPHIBIA • AMPHIBIAN • AMPHIBIOUS • ANATOMY: SKULL • ANIMAL TAIL • ANIMAL THEMES • ANIMAL • ARTWORK • CARNIVORE • COLOR IMAGE • COLOUR IMAGE • COPY SPACE • CRANEO • CRANEOS • CRANIUM • CRANIUMS • CREATURE • CUTOUT • DINOSAUR • DINOSAURS • DIPLOCAULUS SALAMANDROIDES • DIPLOCAULUS • EVOLUTION • EXTINCT • HORIZONTAL • ICHTHYOLOGY • ILLUSTRATION TECHNIQUE • ILLUSTRATION • ILLUSTRATIONS • LATERAL VIEW • MORPHOLOGY • NATURAL HISTORY • NATURAL SCIENCES • NATURE STUDY • NO PEOPLE • ONE ANIMAL • PAINTING • PALAEONTOLOGY • PALAEOZOOLOGY • PALEOBIOLOGY • PALEOICHTHYOLOGY • PALEONTOLOGY • PALEOZOIC ERA • PALEOZOOLOGY • PAST • PERMIAN • PISCIVORE • PREHISTORIC ERA • SALAMANDER • SCIENCE: EVOLUTION • SIDE VIEW • SKULL • SKULL, ANATOMY • SKULLS • SPECIES • TETRAPOD • UGLINESS • WHITE BACKGROUND • WILDLIFE • WITHOUT PEOPLE • ZOOLOGY