Rotating detachable head harpoon

...In addition to the shell and bone mounds, a large number of marine mammal bones, including whales, fur seals, and seals, as well as fish bones and fragments of sea urchin shells, have been excavated. Stone tools for hunting and fishing, such as stone arrowheads, stone spears, and stone weights, as well as a wide variety of bone and horn tools, such as rotating detachable head harpoons and combination fish hooks, have also been discovered, indicating that the bearers of this culture were marine mammal hunters and fishermen adapted to living in coastal areas. However, pig bones have also been excavated, indicating that they were pig breeders, and the discovery of bone hoes suggests that they were simple vegetable gardeners.

*Some of the terminology explanations that refer to the "rotating detachable head harpoon" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…また貝塚，骨塚をともない，クジラ，オットセイ，アザラシなどの海獣骨や魚骨，ウニ殻片などを多量に出土する。石鏃，石槍，石錘といった狩猟･漁労具としての石器類や，回転離頭銛や組合せ釣針などの多種類の骨角器も発見され，この文化の担い手たちは沿岸域に適応した海獣狩猟･漁労民的性格をもっていたことが知られる。しかし同時に，豚の骨も出土し，豚飼育民でもあり，骨鍬などの出土から簡単な菜園耕作民であったことも推測されている。…

※「回転離頭銛」について言及している用語解説の一部を掲載しています。

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