Thousands of dinosaur footprints dating back 210 million years have been found in a national park in northern Italy.
The footprints - some of which are up to 40cm (15in) in diameter - are aligned in parallel rows, and many show clear traces of toes and claws.
It is thought the dinosaurs were prosauropods - herbivores with long necks, small heads and sharp claws.
"I never would have imagined I'd come across such a spectacular discovery in the region where I live," said Milan-based paleontologist Cristiano Dal Sasso.
Last September a photographer spotted the footprints stretching hundreds of metres on a vertical mountain wall in the Stelvio national park, north-east of Milan.
