Frozen In Time On This Massive Cliff Face Are 5,000 Footprints Of Terrifying Prehistoric Creatures

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Image: Oli Scarff/Getty Images
Image: Oli Scarff/Getty Images

But although some footprints were first discovered in the mid-1980s, serious study of the site did not begin until 1994. Subsequently, researchers realized the full extent of the discovery. And what a discovery it was.

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Image: Gerardo Diego Ontiveros
Image: Gerardo Diego Ontiveros

Yes, at Cal Orcko they found a massive limestone wall almost 4,000 feet in length. Stretching up over 250 feet from the quarry floor, its surface was covered in more than 5,000 prehistoric footsteps.

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