Paradigm has been changing by coastal route theory, from the established one of Siberian mammoth hunter. Who in Northeast Asia were ancestor of Footprints people X in White Sands? X≒α‘of SA? ≒ A or Abc admixed or BC?
Chart bottom Mystery of Harvard Medical School’s DNA research on Southeast Asia and indigenous Amazon tribes. Tribes of Ami and Cabecar in chart are important position of evidence on this matter and Peopling of America seems probable by coastal route initially. Footprints 23,000 BP were found in New Mexico and have changed paradigm. Who reached the south coast of Beringia and got down to South America? Was it really Siberian mammoth hunter?
Chart above Hokkaido Sojin, proto-Japanese in northern island, had initially migrated up to northern part of Kyusyu, western Island of Japanese archipelago, from southern Asia. They shed the light on this matter now as the First Americans had migrated by coastal route, not by Ice Free Corridor (IFC), in recent main theory. https://www.sunda-wind.net/?p=12922
Established theory has been overturned since Footprints found in New Mexico and coastal route or Kelp Highway migration theory has come into discussion mainstream.
Proto-Japanese “Sojin”(before Jomon) seems to have reached from South in circa 40,000 BP and spread all over Japanese archipelago. Hokkaido Sojin from Aomori seems to have continued migration up North to Chishima/Kril Islands without any denial factor. So, Hokkaido Sojin sheds the light on the Footprints now.
Terminology for ancient people in Japan expressed as Corobocle named after coexsited tribe with Ainu in their forlklore by Dr. Tsuboi. People (Routon tribe) in North Chishima islands has previously thought as Corobocle at that time and a field worker Torii Ryuzo had surveyed about them and their ancient historical sites in 1899. He had finally authorized “Routon”-North Chishima people as Corobocle after 10 to15 years later, but Corobocle had changed meaning as a quite different character in fairy tales and continued upto now.
They were not fairy nor mischief, but important prehistoric terminology Corobocle named by Dr. Tsuboi and real tribe of Corobocle of their historical site surveyed by Torii actually, though misunderstood 100 years since by people.
Hokkaido, Chishima, Corobocle to world classroom nowーRGaPJ