A team of palaeontologists discovered a single footprint left by a cat-sized stegosaur around 100 million years ago in China.
University of Queensland researcher Dr. Anthony Romilio said the footprint suggests the tiny dinosaur may have walked on two legs.
Associate Professor Xing said a complete set of tracks of the tiny footprints would provide the answer to this question. However, finding more of the six-centimetre tracks on the crowded site will prove difficult.