Suppr超能文献

以及赤道以南非洲的更新世古人类进化。

and Pleistocene hominin evolution in subequatorial Africa.

作者信息

Berger Lee R, Hawks John, Dirks Paul Hgm, Elliott Marina, Roberts Eric M

机构信息

Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg, South Africa.

Department of Anthropology, University of Wisconsin, Madison, United States.

出版信息

Elife. 2017 May 9;6:e24234. doi: 10.7554/eLife.24234.

Abstract

New discoveries and dating of fossil remains from the Rising Star cave system, Cradle of Humankind, South Africa, have strong implications for our understanding of Pleistocene human evolution in Africa. Direct dating of fossils from the Dinaledi Chamber (Berger et al., 2015) shows that they were deposited between about 236 ka and 335 ka (Dirks et al., 2017), placing in the later Middle Pleistocene. Hawks and colleagues (Hawks et al., 2017) report the discovery of a second chamber within the Rising Star system (Dirks et al., 2015) that contains remains. Previously, only large-brained modern humans or their close relatives had been demonstrated to exist at this late time in Africa, but the fossil evidence for any hominins in subequatorial Africa was very sparse. It is now evident that a diversity of hominin lineages existed in this region, with some divergent lineages contributing DNA to living humans and at least representing a survivor from the earliest stages of diversification within . The existence of a diverse array of hominins in subequatorial comports with our present knowledge of diversity across other savanna-adapted species, as well as with palaeoclimate and paleoenvironmental data. casts the fossil and archaeological records into a new light, as we cannot exclude that this lineage was responsible for the production of Acheulean or Middle Stone Age tool industries.

摘要

来自南非人类摇篮——新星洞穴系统的化石遗迹的新发现和年代测定,对我们理解非洲更新世人类进化具有重要意义。对迪纳莱迪洞穴(伯杰等人,2015年)化石的直接测年表明,它们的沉积时间约在23.6万年至33.5万年之间(德克斯等人,2017年),处于中更新世晚期。霍克斯及其同事(霍克斯等人,2017年)报告在新星洞穴系统(德克斯等人,2015年)内发现了第二个洞穴,其中含有化石遗迹。此前,只有大脑袋的现代人类或其近亲被证明在非洲这个时期存在,但赤道以南非洲任何古人类的化石证据都非常稀少。现在很明显,该地区存在多种古人类谱系,一些不同的谱系为现代人类贡献了DNA,至少代表了该谱系内最早分化阶段的幸存者。赤道以南地区存在各种各样的古人类,这与我们目前对其他适应稀树草原物种多样性的了解以及古气候和古环境数据相符。这使化石和考古记录有了新的解读,因为我们不能排除这个谱系是阿舍利文化或中石器时代工具工业的创造者。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9b0d/5423770/12b00a5dde9a/elife-24234-fig1.jpg

文献检索

告别复杂PubMed语法,用中文像聊天一样搜索,搜遍4000万医学文献。AI智能推荐,让科研检索更轻松。

立即免费搜索

文件翻译

保留排版,准确专业,支持PDF/Word/PPT等文件格式,支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述,25分钟生成高质量综述,智能提取关键信息,辅助科研写作。

立即免费体验