Science2013-10-18 10:33 PM

A Complete Skull from Dmanisi, Georgia, and the Evolutionary Biology of Early Homo 格鲁吉亚Dmanisi 地区发现的完整人类头骨以及早期智人的进化生物学

Abstract
The site of Dmanisi, Georgia, has yielded an impressive sample of hominid cranial and postcranial remains, documenting the presence of Homo outside Africa around 1.8 million years ago. Here we report on a new cranium from Dmanisi (D4500) that, together with its mandible (D2600), represents the world's first completely preserved adult hominid skull from the early Pleistocene. D4500/D2600 combines a small braincase (546 cubic centimeters) with a large prognathic face and exhibits close morphological affinities with the earliest known Homo fossils from Africa. The Dmanisi sample, which now comprises five crania, provides direct evidence for wide morphological variation within and among early Homo paleodemes. This implies the existence of a single evolving lineage of early Homo, with phylogeographic continuity across continents.
论文摘要
格鲁吉亚的Dmanisi地区发现的让人印象深刻的原始人的颅骨和颅后遗骸样本,证明了在180万年前的非洲之外地区早期智人的存在。 我们在这里报告一个新的从Dmanisi(D4500)发现的头盖骨, 连同它的下颚骨(D2600),它代表了世界上第一个来自早期更新世的完整保存的人类头骨。 D4500/D2600 结合了一个较小的大脑头骨(546立方厘米)以及一个较大的小额前突的脸部。 从形状上来说非常接近早前我们在非洲发现的智人头骨。 这个出自Dmanisi的样本,和现有的其他4块头骨,直接证明了早期智人(不同时间,不同地域)在很长一段历史时间内形态具有演变和进化。 这暗示不同大陆之间的智人都有同一种智人血统维系着。

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