The careful examination of the numerous grooved spearheads found in Alaska and western Canada proved that America's Glacial Migrations were much more complex than they thought.
Heather Smith and Ted Goebel both participated in the study of the First Americans Training Center, part of the Department of Anthropology at Texas A & M. Smith is now an assistant professor at the University of East New Mexico.
Smith and anthropology professor Goebel, who worked on this subject in his doctoral study, believe that findings can change how we see travel patterns and routes of people from 14,000 to 12,000 years ago, when people are placed in various parts of North America.
Using these new methods of digital analysis for the first time in such a study, researchers discovered that, as previously thought, "the first settlers to travel north, not south of Alaska. "Says Goebel.
"In the Late Glacial, there were two possible ways to follow the migrations of the first Americans from the Bering Ground Bridge area to the temperate North America in the south, but now they only seem to have used the Pacific coast road. The inner Canadian route may not have been fully explored until after the millennium. "
"These grooved spear finds provide archaeological evidence supporting new genetic models that explain how people colonize the New Earth."
Traditional interpretations of American colonization of America's colonization anticipated that the first inhabitants migrated from Siberia to Alaska and then followed the slowly opening ice-free corridor in western Canada to reach the Great Plains of the western United States.
However, new genetic studies on early Siberians, Alaska and Americans, and the discovery of new areas of daylight from the beginning of the ice-free corridor south of the Canadian ice layers, show that the first Americans are moving along the Pacific coast
"It is important that these spearheads are related to technology and morphology, and that some of these traits change the shape of a relationship from the line of the ancestors. This shows that the people who carry these tools are also involved, "adds Smith.
"This shows that early people in Canada and Alaska come from the descendants of Clovis (the first settlers in North America) and use the same kind of weapons, especially for the bison or to collect food. It also shows that they come back to the middle of the continent and back to the North Pole. "
These works can be used to document migration patterns of prehistoric peoples.
"The spearheads prove that the peoples of America are much more complex than we believed, and that these early settlers went to many different directions, not just to the south. "
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"This is concrete evidence that there is a link between the Arctic and the people of the North Sea 12,000 years ago, this link may be genetic or social, but ultimately informs about the capabilities and adaptability of early cultures in North America. "
Science Daily. 2 April 2018.
Article : Smith, H. L., & Goebel, T. (2018). Origins and spread of fluted-point technology in the Canadian Ice-Free Corridor and eastern Beringia. Proceedings of the National Academy of Sciences, 201800312.