NPS, USGS, dan University of Bournemouth
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Recent research on ancient footprints in White Sands National Park determined that they are the earliest known evidence of humans in North America.
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Nationalgeographic.co.id—“Foot steps it was most likely created in soft soil at the edge of the wetlands, winds probably blew dust to the surface, causing silt deposits,” Bennett told CNN. He is a geologist and foot steps at Bournemouth University in England. According to him, hunter-gatherers would travel more than 10,000 steps a day, which meant at least a few foot steps will stay on record fossil.
“This is the first site to be unequivocal and a good data point to state man arrived in the southwest America around the last glacial maximum,” said Bennett.
In 2018, Bennett is together Daniel Odess, a archaeologist at the National Park Service, and David Bustos, resource manager at White Sands, reports finding traces man and fauna at this site. Under certain conditions of humidity, according to them, foot steps man ancient and traces of extinct megafauna—such as ground sloths and mammoths—would appear around the shores of the now dry lake bottom.
However, no one knows exactly how old this imprint is. Some researchers suspect that at least some of the pairs of megafauna footprints are simply the remains of older tracks that were re-exposed by the wind and then stepped on by the wind. man at a later date.
Dimension analysis foot steps indicates that the imprints were made by children between the ages of 9 and 14—a pattern seen on the site foot steps fossil other. Traces of mammoths, giant ground sloths, monstrous wolves and birds are also on this site.
So far we have assumed that man arrive at America North of Asia via Beringia, a land bridge that once connected the two continents. It happened around the end of the Ice Age or 13,000 to 16,000 years ago.
However, this discovery caused some debate, because these fossils show that man may have been in America North earlier than previously thought.
Currently, researchers studying fossil foot steps man in New Mexico say they have firm evidence that man first set foot in America North at least 23,000 years ago.
Radiocarbon dating was obtained from seeds embedded in foot steps, as reported by The Scientist. The results at the same time confirm that man enter America thousands of years earlier than accepted estimates.
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Dan Odess
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Fossilized human footprints were first discovered by the program manager of White Sands National Park, New Mexico.
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“The ancestry of the American population is one of those classes of people that for many years has been highly debated and many archaeologists have held very firm views,” said Matthew Bennett, a professor and specialist in ancient footprints at Bournemouth University. He is also the author of a study on the new findings published in the journal Science. “One of the problems is that there is very little data at hand,” he added.
Bennett and his colleagues were able to accurately date 61 footprints by radiocarbon dating of the seed layers of aquatic plants that had been preserved above and below them. The tracks, found in the Tularosa Basin in White Sands National Park, date back 21,000 to 23,000 years, the researchers found.
The timing and location of the footprints in southwest North America suggest that humans must have been on the continent much earlier than previously thought, Bennett said. The people who made the footprints—mostly teenagers and children—lived in New Mexico at the height of the late Ice Age.
Also Read: More than Half a Century of Discovery, Footprints on the Roof of the Cave Revealed
CNN
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fossilized human footprints found in North America
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Between 19,000 and 26,000 years ago, a period known as the Last Glacier Maximum, two large ice sheets covered the northern third of the continent and reached as far south as New York City, Cincinnati and Des Moines, Iowa. The icy and cold temperatures would have made travel between Asia and Alaska impossible during that time, meaning the people who made the footprints were most likely to have arrived earlier.
“One hypothesis for this finding is that they have a division of labor system, in which adults engage in skilled tasks while collecting and carrying are assigned to adolescents,” the study noted. “Children accompany the teens, and collectively they leave more of the footprints normally recorded in the fossil record,” Bennett told CNN.
While Odess revealed to The Scientist, “When I was a kid, I liked to walk in the mud… We might see something like that.” Then he added, “We know there are a lot of behaviors that humans do that aren’t necessarily work-related, and whether people are out there walking along the shores of the lake for fun or because their parents said, ‘get some water’, then they left. traces, and that’s what we see.”
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