They appeared in New Mexico. They present the oldest evidence of human presence in America. 21000 -year fingerprints were found in America.
Chronology revolutionizes the understanding of anthropologists about the development of cultures in North America. The footprints are 10,000 years older than the remains found 90 years ago in a deposit near Clovis, New Mexico. It was the oldest known in North America.
Overwhelming tests
The clay of the new finding has between 20,700 and 22,400 years old. It correlates with the original finding that the footprints are between 21,000 and 23,000 years old. The new study marks the third type of material (mud, in addition to seeds and pollen) used to date the footprints. They have done three different laboratories. Two independent research groups now have a total of 55 radiocarbon datations consistent.
"It is a remarkably consistent record," he says in a release The author of the research Vance Holliday. He is an emeritus professor at the School of Anthropology and the Department of Geosciences. He studied the settlement of the Americas for almost 50 years, focusing mainly on the big plains and southwest.
Milenios ago, White Sands was a series of lakes that finally dried. Wind erosion stacked the plaster forming the dunes that define the area today. The 21000 -year footprints in America were excavated in the bed of a stream that led to one of those old lakes. «Wind erosion destroyed part of history, so that part simply disappeared. The rest is buried under the largest pile of gypsum sand in the world ».
Other indications
A question bothered researchers. Why are there no indications of artifacts or settlements left by those who left the traces? Some of the traces discovered for the 2021 study were part of traces that would have traveled in just a few seconds. It is perfectly reasonable, they said, assuming that hunters-gatherers would be careful not to leave any resource behind in such a short time.
«These people live from their artifacts and were far from where they can get replacement material. They are not simply dropping at random artifacts, ”he said.
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