Examples of magatama from the Jōmon period have been discovered in large numbers at the Kamegaoka site in Tsugaru, Aomori Prefecture.
Stone and clay magatama and magatama-like beads have also been discovered at the Amataki site, Ninohe, Iwate Prefecture, Osagata site, Ibaraki Prefecture, and the Kou site, Fujiidera, Osaka Prefecture [REF].