Triceratops skull with early mammals.

ANATOMY: BONES • ANATOMY: SKULL • ANCIENT • ANIMAL BODY PARTS • ANIMAL BODY • ANIMAL BONES • ANIMAL HEAD • ANIMAL REPRESENTATION • ANIMAL SKELETON • ANIMAL SKULL • ANIMAL THEMES • ANIMAL • ANIMALS IN THE WILD • ARTIFACTS • ARTWORK • BONE • BURIED • CENOZOIC ERA • CERATOPSIA • CERATOPSID • CLAY ARTEFACTS • CLOUD • CLOUDS • COLOR IMAGE • COLOUR IMAGE • CRANEO • CRANEOS • CRANIUM • CRANIUMS • CRETACEOUS • CURIOSITY • DAY • DEATH • DIDELPHID • DINOSAUR • DINOSAURS • DISCOVERY • ENVIRONMENT • EODELPHIS • EVOLUTION • EXTINCT • FOSSIL SITE • FOSSIL • GOBICONODON • GOUACHE • GROUND • HERBIVORE • HORNED • ILLUSTRATION TECHNIQUE • ILLUSTRATION • ILLUSTRATIONS • ILUSTRATION • INSECTIVORE • MAMMAL • MEDIUM GROUP OF ANIMALS • MESOZOIC ERA • MYSTERY • NATURAL HISTORY • NATURAL SCIENCES • NATURE STUDY • NEOZOIC ERA • NO PEOPLE • NOSINESS • OPOSSUM • ORNITHISCHIA • OSTRACON = OSTRAKON • OSTRACON • OSTRAKON • OUTDOOR • OUTDOORS • OUTSIDE • PAINTING • PALAEONTOLOGY • PALAEOZOOLOGY • PALEOART • PALEOBIOLOGY • PALEOCENE • PALEONTOLOGY • PALEOZOOLOGY • POTSHERD • PREHISTORIC ERA • PTILODUS • RAYS OF LIGHT • REMAINS • RODENT • RODENTS • SCIENCE: EVOLUTION • SKELETON • SKULL • SKULL, ANATOMY • SKULLS • SMALL • SPECIES • TINY • TRICERATOP • TRICERATOPS • VERTICAL LINES • VERTICAL • WATERCOLOR PAINTING • WILDLIFE • WITHOUT PEOPLE • ZOOLOGY