Mere feet away is the star of the show – a psittacosaurus, literally "parrot-lizard". This sweet little beaked herbivore and close relative of the triceratops is thought to have padded through the forests of what is now Asia around 133-120 million years ago. The specimen I"m looking at is world-famous – not for its skin, which is so intact you can still make out the streaky pattern on its body, or for its tail, which includes a distinctive spiky fringe of feathers. No, this dinosaur is best-known as the one that left its bottom behind for future generations to study (More on that later.)