The Pachycephalosaurus from the Schleich DINOSAURS theme world is the largest platypus dinosaur ever discovered. It was about 4-5 meters long, weighed 450 kg, and was a bipedal dinosaur. It lived in North America during the late Cretaceous period. Its strongly domed skull was 20-25 cm thick. Scientists suspect it used its skull to ram rivals or to impress them. Pachycephalosaurus means "big-headed lizard." Schleich figures are faithfully reproduced and always to scale. All figures are hand-painted. This ensures that the figures always correspond to reality.