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Further evidence points to footprints in New Mexico being the oldest sign of humans in Americas

Posted by Otto Knotzer on October 12, 2023 - 5:19am
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Further evidence points to footprints in New Mexico being the oldest sign of humans in Americas

This Oct. 2023 photo made available by the National Park Service shows Human footprints infilled with white gypsum sand. at the White Sands National Park in New Mexico. Fossil human footprints discovered in White Sands, New Mexico likely date back to between 21,000 and 23,000 years ago, according to two lines of scientific evidence published Thursday, Oct. 5, 2023. (NPS via AP)1 of 3 | 

This Oct. 2023 photo made available by the National Park Service shows Human footprints infilled with white gypsum sand. at the White Sands National Park in New Mexico. Fossil human footprints discovered in White Sands, New Mexico likely date back to between 21,000 and 23,000 years ago, according to two lines of scientific evidence published Thursday, Oct. 5, 2023. (NPS via AP)

Read MoreThis Oct. 2023 photo made available by the National Park Service shows White Sands National Park Resource Program Manager, David Bustos at the White Sands National Park in New Mexico. Fossil human footprints discovered in White Sands, New Mexico likely date back to between 21,000 and 23,000 years ago, according to two lines of scientific evidence published Thursday, Oct. 5, 2023. (NPS via AP)2 of 3 | 

This Oct. 2023 photo made available by the National Park Service shows White Sands National Park Resource Program Manager, David Bustos at the White Sands National Park in New Mexico. Fossil human footprints discovered in White Sands, New Mexico likely date back to between 21,000 and 23,000 years ago, according to two lines of scientific evidence published Thursday, Oct. 5, 2023. (NPS via AP)

Read MoreThis undated photo made available by the National Park Service in September 2021 shows fossilized human fossilized footprints at the White Sands National Park in New Mexico. Fossil human footprints discovered in White Sands, New Mexico likely date back to between 21,000 and 23,000 years ago, according to two lines of scientific evidence published Thursday, Oct. 5, 2023. (NPS via AP)3 of 3 | 

This undated photo made available by the National Park Service in September 2021 shows fossilized human fossilized footprints at the White Sands National Park in New Mexico. Fossil human footprints discovered in White Sands, New Mexico likely date back to between 21,000 and 23,000 years ago, according to two lines of scientific evidence published Thursday, Oct. 5, 2023. (NPS via AP)

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BY CHRISTINA LARSON

Updated 8:03 PM MESZ, October 5, 2023

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New research confirms that fossil human footprints in New Mexico are likely the oldest direct evidence of human presence in the Americas, a finding that upends what many archaeologists thought they knew about when our ancestors arrived in the New World.

The footprints were discovered at the edge of an ancient lakebed in White Sands National Park and date back to between 21,000 and 23,000 years ago, according to research published Thursday in the journal Science.

The estimated age of the footprints was first reported in Science in 2021, but some researchers raised concerns about the dates. Questions focused on whether seeds of aquatic plants used for the original dating may have absorbed ancient carbon from the lake — which could, in theory, throw off radiocarbon dating by thousands of years.

© Markethive Inc.