New findings in ①Florida (to Coastal Migration Theory) and in ②Amazon estuary (the oldest pottery in new American continents reminds of Jomon) indicate not only Siberian hunters, but Proto-Japanese Sojin, predecessor of Jomon, not Ainu should be paid more attention to.
DNA affinity ③among Jomon Japan ― Onge Andaman Is ― Amazon old tribes in South America indicates interesting triangle relation. ④Coastal Migration theory supports seafarer Proto-Japanese Izu Sojin (38,000 BP~) and its descendant Doto Sojin (before 30,000 BP in eastern Hokkaido) who seems to have continued migration up north to Beringia and down west coast all along Kelp Highway.