Fossilized footprints have been discovered in various locations, with some findings potentially rewriting the story of humans in america and others revealing dinosaur activity. The age and origin of the footprints vary, with reports of 2,000-year-old, 23,000-year-old, and even million-year-old prints. The discoveries have been made in different parts of the world, including north america, south america, and europe, with some findings being quickly erased by natural forces.