多年来，山顶洞人作为东亚地区更新世晚期人类的代表，在研究东亚地区现代蒙古人种及美洲印第安人起源方面发挥着重要作用。

For decades, as the representative of the late Pleistocene human in east Asia, the Upper Cave skulls have played an important role in research on the origins of modern Mongoloids and American Indians.

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研究人员表示，他们将继续努力，以决定何时美洲印第安人的基因首次在抵达冰岛。

Researchers said they would keep trying to determine when the Amerindian genes first arrived in Iceland.

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他说，古印第安人这样的双重起源对于涉及美洲原住民研究的所有学科都有重大意义。

Such a dual origin for Paleo-Indians has major implications for all disciplines involved in Native American studies, he said.

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