The Ankylosaurus meaning 'stiff lizard' was an armoured dinosaur from the Late Cretaceous period (around 74-67 million years ago). Ankylosaurus were 7 metres in length and weighed 4,000 kg. They were herbivores and had grinding teeth with a horny beak at the front. Hand-painted dinosaur toy. Designed by experts, CollectA dinosaur models are factually accurate and true to life.