World's largest dinosaur footprints discovered in Western Australia

Newly-discovered prints left by gigantic herbivores are part of a rich collection of tracks belonging to an estimated 21 different types of dinosaur

The largest known dinosaur footprints have been discovered in Western Australia, including 1.7 metre prints left by gigantic herbivores.

Until now, the biggest known dinosaur footprint was a 106cm track discovered in the Mongolian desert and reported last year.