遗址还出土了据认为是全新世早期(Early Holocene)的贝壳制鱼钩(shell fish hooks)，由Trochus niloticus贝壳制成，年代测定为距今9741+/-60年。
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Early Holocene Climate Oscillations 早全新世气候振荡
the early holocene 早全新世
Early Holocene epoch 早全新世
Early Holocene soft clay 早全新世软粘土
early and middle Holocene 全新世早中期
During the early Holocene, it was transgressed and reduced into a part of Lixahe bay.
早全新世因受海侵影响，本区是里下河浅水海湾的一部分；
Heituhu formation is gray and gray-black silty clay with limnological facies in early and middle period of Holocene, and bearing lots of spiral case;
黑土湖组为全新世早—中期湖沼相沉积的灰—灰黑色粘土类粉砂质粘土，含大量淡水螺蚌介壳；
The bog in upper stream formed early, and had begun in early Middle Holocene;
上游形成时间较早，始于中全新世前期；
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