Age range 3 to 8With its two big horns and a small horn on its face, Triceratops is one of most well known dinosaurs. Meet this plant eating dinosaur and a range of other fascinating dinosaurs Coelophysis, with a hollow body that allowed it to be a swift hunter; Giganotosaurus, who had one of the biggest frames out of all the carnivorous dinosaurs; Maiasaura, who would take care of its eggs like no other dinosaur; Alamosaurus, a bulky long necked dinosaur that lived in herds and Pachycephalosaurus, a head butting dinosaur with a thick skull.