India, April 16 -- A single footprint left by a cat-sized dinosaur around 100 million years ago has been discovered in China by an international team of palaeontologists.

University of Queensland researcher Dr Anthony Romilio was part of the team that investigated the track, originally found by Associate Professor Lida Xing from the China University of Geosciences (Beijing).

"This footprint was made by a herbivorous, armoured dinosaur known broadly as a stegosaur - the family of dinosaurs that includes the famed stegosaurus," Dr Romilio said.

"Like the stegosaurus, this little dinosaur probably had spikes on its tail and bony plates along its back as an adult.

"With a footprint of less than six centimetres, this is the smallest stegos...