Tobinitai culture
The Tobinitai culture (トビニタイ文化) is an archaeological culture of eastern Hokkaidō. This culture represented a hybridization, blending the influences of both the Okhotsk and Satsumon cultures. Over time, the Satsumon culture, having absorbed elements from the Tobinitai culture, evolved into what is now recognized as the Ainu culture, which spread throughout Hokkaido. The conventional name for this culture is derived from the Tobinitai site in Rausu, Nemuro Subprefecture, whose name in Ainu (tope-ni-tay) means "forest where silver maples gather".