Oldest Human Footprints Found In North America

North America's oldest human footprints, found in White Sands National Park in New Mexico

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The group’s latest work appeared in a recent edition of Quaternary Research

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Last September, researchers from the U.S. Geological Survey radiocarbon dated Ruppia cirrhosa seeds

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Their results implied the footprints were left between 22,800 to 21,130 years ago

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Previously, the earliest-known human beings in North America were dated between 14,000 and 16,000 years ago

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The team published its findings in Science last year. “This is a bombshell,”

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