| Apart from the Itoshima region where the custom barely remained, it was sporadically seen in a former kamekan burial system distribution range and finally the custom disappeared by the Kofun period. |
糸島地域のみで細々と継続するほかは旧甕棺墓制分布域で散発的に認められるのみとなり、古墳時代までには消滅する。 |