Remarkable window into the lives of dinosaurs at the end of the Cretaceous, but footprints face preservation threats

xToro Toro (Bolivia) Legend once had it that the huge, three-toed footprints scattered across the central highlands of Bolivia came from supernaturally strong monsters capable of sinking their claws even into solid stone.

Then scientists came here in the 1960s and dispelled children’s fears, determining that the strange footprints in fact belonged to gigantic, two-legged dinosaurs that stomped and splashed over 60 million years ago, in the ancient waterways of what is now Toro Toro, a village and popular national park in the Bolivian Andes.

Now, a team of paleontologists, mostly from California’s Loma Linda University, have discovered and meticulously documented 16,600 s

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