U is for Udanoceratops

This was a large herbivorous dinosaur (estimated at about 4 m / 13 ft) with a parrot-like beak, a small frill on the skull, and no horns over the eyes or nose. It lived about 70-80 million years ago. This species belongs to a group in which it is believed to be the largest, and is known only from a single specimen - an almost complete large skull that measures 60 cm / 24 in.