部遗骸支持澳大利亚类动物 (Australopithecus sediba) 的分类学有效性
Darryl J de Ruiter1, Thomas J DeWitt, Keely B Carlson
1Department of Anthropology, Texas A&M University, College Station, TX 77843, USA. deruiter@tamu.edu
Science (New York, N.Y.)
|April 13, 2013
概括
马拉帕化石,澳大利亚白座 (Australopithecus sediba) 是一个独特的物种,不仅仅是澳大利亚白座 (Australopithecus africanus) 的变异. 骨分析证实了独特的尺寸,形状和生长模式,使这些早期人类祖先有所区别.
科学领域:
- 古人类学古人类学.
- 人类进化人类进化
- 灵长类动物学 灵长类动物学
背景情况:
- 在马拉帕遗址发现的Australopithecus sediba的分类仍在争论中.
- 关键问题涉及到Au. 塞迪巴 (Sediba) 代表了澳大利亚白 (Australopithecus africanus) 内部的一个独特的物种或物种内变异.
- 时间和地理上的邻近性Au. 塞迪巴到奥. 非洲人需要详细的比较分析.
研究的目的:
- 为了调查澳大利亚白座 (Australopithecus sediba) 的分类学地位.
- 为了确定是否下形态的Au. sediba支持将其归类为与Au. Au. 独立的物种. 非洲人.非洲人.
- 分析Au的尺寸,形状和本体遗传轨迹. 西迪巴下的残骸.
主要方法:
- 对新发现的Au. mandibular化石进行了形态分析. 这是Sedibá.
- 对下骨遗骸的比较分析来自Au. 塞迪巴和澳大利亚. 非洲的低矮人.
- 对AU的面,牙和后证据的检查. 这是Sedibá.
主要成果:
- 澳大利亚的下形态. 塞迪巴与Au.Sediba是不同的. 非洲人.非洲人.
- 在. Au. 在. 塞迪巴在下中表现出独特的尺寸和形状特征.
- Au. 的本体遗传生长轨迹. 塞迪巴下与Au的不同. 非洲人.非洲人.
结论:
- 下的证据支持将奥斯拉罗皮塞克斯·塞迪巴 (Australopithecus sediba) 作为一个有效和独特的分类.
- 澳大利亚白座 (Australopithecus sediba) 不仅仅是澳大利亚白座 (Australopithecus africanus) 的晚期存活的形态.
- 明显的下部特征,以及其他骨证据,巩固了Au. 塞迪巴独特的进化地位.
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