来自第1个成员的Paranthropus robustus的手,Swartkrans:对工具行为的化石证据
1Department of Anatomical Sciences, School of Medicine, State University of New York, Stony Brook 11794-8081.
Science (New York, N.Y.)
|May 6, 1988
概括
新的手工化石揭示了Paranthropus robustus拥有精确的抓取能力,这表明在植物加工中使用工具. 这挑战了工具行为影响了强壮血统的灭绝或早期Homo的兴起的想法.
科学领域:
- 古人类学古人类学.
- 灵长类古生物学
- 进化生物学 进化生物学
背景情况:
- 已灭绝的原始人手的形态学为我们提供了关于他们的行为和进化关系的见解.
- 了解Paranthropus robustus的能力对于重建早期人类生活方式和进化动态至关重要.
研究的目的:
- 为了分析来自Swartkrans的新发现的手化石,这些手化石归因于Paranthropus robustus.
- 为了推断Paranthropus robustus的功能能力,特别是抓住能力.
- 重新评估工具行为在巴兰特罗普斯 (Paranthropus) 灭绝和早期人类 (Homo) 成功中的作用.
主要方法:
- 从Swartkrans形成的新人类手化石的挖掘和分析.
- 功能形态分析以评估抓取能力.
- 与现存的灵长类动物和其他化石人类进行比较分析.
主要成果:
- 新发现的手化石,约为180万年前,显示出适应精确抓取.
- 功能形态学表明Paranthropus robustus能够使用工具,可能用于获取和加工植物.
- 这些发现表明,工具行为并不是Paranthropus血统灭绝的主要因素.
结论:
- 帕兰特罗普斯·罗伯斯的手部解剖学支持其完成复杂的手工任务的能力,包括使用工具.
- 早期Homo的出现和成功不仅仅是通过获得使用工具的行为来解释的.
- 这些化石改进了我们对人类多样性的理解,以及Plio-Pleistocene的行为生态.
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