Chasmosaurus was a ceratopsid dinosaur from the Upper Cretaceous Period.

ALERTNESS • ANIMAL HEAD • ANIMAL THEMES • ANIMAL • ANIMALS IN THE WILD • ARBOL • ARTWORK • BEAK • BEAST • BOULDER • CERATOPSIA • CERATOPSID • CHASMOSAURUS • COLOR IMAGE • COLORFUL • COLOUR IMAGE • CONCEPT • CREATURE • CRETACEOUS • DIGITALLY GENERATED IMAGE • DINOSAUR • DINOSAURS • ENVIRONMENT • EVOLUTION • EXISTENCE • EXTINCT • FIERCE • FOREST • FRILL • FULL LENGTH • HERBIVORE • HOOFED MAMMALS • HORIZONTAL • HORNED • ILLUSTRATION • ILLUSTRATIONS • IMAGINATION • LANDSCAPE • LARGE • LATERAL VIEW • LOOKING ON • LOOKING • MEGAFAUNA • MESOZOIC ERA • NATURAL HISTORY • NATURAL SCIENCES • NATURE STUDY • NATURE • NIGHT • NO PEOPLE • ON TOP OF • ONE ANIMAL • ORNITHISCHIA • OUTDOOR • OUTDOORS • OUTSIDE • PALAEONTOLOGY • PALAEOZOOLOGY • PALEOART • PALEONTOLOGY • PALEOZOOLOGY • PAST • POWERFUL • PREHISTORIC ERA • PRIMITIVE • QUADRUPED • ROAMING • ROCK • SCIENCE • SCIENCE: EVOLUTION • SIDE VIEW • SPECIES • SPIKED • STANDING • TOUGHNESS • TREE TRUNKS • TREE • TREES • VERTEBRATE • VIGILANCE • WATCHFULNESS • WATCHING • WILDERNESS • WILDLIFE • WITHOUT PEOPLE • WOODLAND • WOODLANDS • WOODS • ZOOLOGY