Fossilised track dates back to period immediately following mass extinction 252m years ago
Footprints believed to have belonged to a crocodile-like prehistoric reptile have been found in the Italian Alps in an extraordinary discovery that scientists say proves there were survivors of a mass extinction 252m years ago.
The well-preserved fossilised track, made up of about 10 footprints, was found at an altitude of 2,200-metres in Altopiano della Gardetta, in the province of Cuneo in the western Alps.
