New fossil material ready for extraction. Extracting species profiled. Homeless effortless sported a thick flat skull, which was used to headbutt others of its genus in competition and would have helped to protect it from predators. Extracting species profiled. Nijosaurus, a large herbivore dinosaur that had a flat vacuum-shaped mouth packed with hundreds of teeth and comically wide jaws. Extracting species profiled. Dryosaurus was a swift and agile plant-eating dinosaur with an elongated neck, slender but powerful back legs, and a long stiff tail to balance its body.