“…To determine which of the skeletons from this site were those of the Okhotsk culture, the one of us (M.Y.) undertook the radiocarbon dating of the Moyoro series using NIES-TERRA, the accelerator facility of the Institute of Environmental Studies located in Tsukuba City, Japan (Yoneda et al, 2005;Matsumura et al, 2006 The comparative samples used in this study consist of the following 19 groups: Jomon, Hokkaido Ainu, Sakhalin Ainu, Yayoi, modern main-island Japanese, Kumejima, Northern Chinese, Aleut, Neolithic Baikalian, Buryat, Chukchi, Ekven (Iron Age), Asian Eskimo, Kazakh, Mongolian, Amur (Nanay, Negidal, Oroch, and Ulch), Nivkh, Russian, and Tagar (Iron Age, southern Siberia). The Jomon from the middle to latest periods (c. 5300-2300 BP) were mainly from the main Japanese islands of Hokkaido and Honshu.…”