Izumi Shell Mound

Japanese: 出水貝塚 - いずみかいづか

A Jomon period shell mound in Kamijishi, Izumi City, Kagoshima Prefecture. It is located on a tongue-shaped plateau where the end of the Hirara River alluvial fan in the Izumi Plain overlooks the Yonezu River. It was excavated in 1920 by Kyoto University (Hamada Kosaku), and in 1954 by Kawaguchi Sadanori and Yamauchi Kiyoo. The shell mound is an inland bay shell mound that is mainly composed of oysters, but also contains shellfish such as clams, ostriches, and sea snails. In addition to the bones of wild boars, deer, and dogs, the remains of a horse believed to be a dwarf horse were discovered, drawing attention. Excavated pottery includes mold-patterned pottery (early Jomon) from below the Akahoya layer, Namiki-style, Ataka-style (middle), and Nanpukuji-style (late) pottery from below the shell layer, and mainly Izumi-style pottery (late) with a patterned band on the thickened rim made by short sunken lines from within the shell layer.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

鹿児島県出水市上知識にある縄文時代の貝塚。出水平野平良川扇状地の扇端部が米津川にのぞむ小舌状台地上に存在する。1920年京都大学(浜田耕作)，54年河口貞徳･山内清男によって発掘されている。貝塚はカキを主体とし，ハマグリ，オキシジミ，ウミニナ等の貝種を含む内湾性貝塚である。猪，鹿，犬等の獣骨のほか，矮小馬とされる馬の遺存骨が検出され注目された。出土土器は，アカホヤ層下より押型文土器(縄文早期)，貝層下より並木式と阿高式(中期)，南福寺式(後期)が出土，貝層中よりは主として，肥厚した口縁部に短沈線による口縁部文様帯を持つ出水式土器(後期)が出土する。

出典　株式会社平凡社世界大百科事典第２版について　情報

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