Thousands of dinosaur footprints, estimated to be 210 million years old, have been identified within a national park in northern Italy. The discovery provides significant insight into ancient faunal activity in the region. These tracks date back to the Triassic period.
The footprints, some reaching 40 centimeters (15 inches) in diameter, are arranged in parallel rows. Many exhibit distinct impressions of toes and claws. Researchers hypothesize these tracks were left by prosauropods, which were herbivorous dinosaurs characterized by long necks, small heads, and sharp claws. Evidence suggests these dinosaurs could attain lengths of up to 10 meters (33 feet) and primarily walked on two legs, though some imprints indicate occasional use of forelimbs for resting.
The discovery occurred last September when a photographer observed the footprints extending over hundreds of meters on a vertical mountain wall within the Stelvio national park, located northeast of Milan.
During the Triassic period, approximately 250 to 201 million years ago, the geological formation now constituting the mountain wall was a tidal flat. This area subsequently became integrated into the Alpine chain. Paleontologist Cristiano Dal Sasso noted the abundance of dinosaur traces at the site.
Observations of the tracks suggest coordinated movement among herds. Additionally, more complex behaviors are indicated, such as groups of animals congregating in a circular formation, a pattern consistent with potential defensive actions.