It would be naive to believe that 10,000 years, all the people red race came to America from Siberia. These tribes lived on the American continent, and forty thousand years ago.
However, the very fact of such burial speaks volumes. First, the observed similarity of the ancient cultures of Siberia and America indicates direct contact representatives of different races living on different continents. Secondly, the Bering Strait did not exist (and maybe it's not important, swim or fly, too, can …) Third, we know that part of Great Tartary in the 18th century was part of the western part of the land of North America. Does it make sense to speak of the more ancient times?