That’s no footprint, it’s got no toes

A favorite spot among paleontologists and paleotourists, the rock formations near Isona, Spain, are famous for fossils of large bones and eggs. However, the sign that tells tourists about dinosaur footprints in one area may need updating.

At the site in question, thousands of oval depressions currently identified as prints dot the sandstone landscape, says Jordi Martinell, a paleontologist at the University of Barcelona.