The Native Americans Before the Native Americans

[Judi Lynn]

RAZIB KHAN FEBRUARY 1, 2024



National Park Service/Scientists working to uncover footprints at White Sands National Park field site


In 2021, scientists radiocarbon-dated pollen found in human footprints at the White Sands National Park in New Mexico and came back with dates of greater than 20,000 years. Critics demanded more evidence, and in 2023, using new data and more advanced methods seems to have confirmed the date. Though there are still skeptics, the White Sands discovery is not the only site that dates to the Last Glacial Maximum between 20-26,000 years ago.

For decades, paleoanthropologists believed the ancestors of American natives were a Siberian tribe that came over from Asia to North America just 13,500 years ago, crossing over Beringia, a landmass exposed by sharply reduced sea levels during the last Ice Age. They called these people the Clovis Culture based on distinct spear points first discovered next to the remains of mammoths at a site in New Mexico. The paradigm posited that over 300 years these big game hunters spread across the New World, driving megafauna into extinction and eventually diversifying into the people we know today as Native Americans.

Yet, already 25 years ago, the evidence contradicting this paradigm became quite strong. There were too many sites that predated Clovis by centuries. Monte Verde in Chile, where archaeologists have been excavating since 1977, is extensively documented and is over 1000 years older than Clovis. In Mexico, Chiquihuite Cave has yielded 1900 stone artifacts, and dates were returned as early as 31-33,000 years ago, long before the Last Glacial Maximum. Being more conservative, the researchers at this site are convinced that humans were claiming it 20,000 years ago at the latest. These dates imply that this population, presumably part of the same group that was leaving footprints at White Sands National Park, arrived much earlier because the expansion of the ice sheets beginning 26,000 years ago definitively blocked the interior migration path and would have made a sea-borne route along the western periphery very difficult as glaciers pushed to the edge of the Pacific.

In 2014, geneticists discovered and sequenced the 24,000-year-old remains of a boy who died on the shores of Lake Baikal and concluded that people related to him contributed 10-15% of the ancestry of modern Europeans and 40% of the ancestry of Native Americans. In one fell swoop, earlier anthropological and genetic suspicions of connections between the two populations were explained. Then, in 2015, the same group of geneticists found that some tribes in the Amazon had ancestry which tied them more closely to Australian Aboriginals and Papuans than to Siberians! This seemed to be a crazy result, but follow-up work not only confirms its correctness, but shows that this exotic ancestry is found across the central band of South America, from the coast into the Amazon.

More:
https://www.palladiummag.com/2024/02/01/the-native-americans-before-the-native-americans/