萨赫兰索普斯 (Sahelanthropus tchadensis) 的分类学从一个测的角度来看
Walter Neves1, Gabriel Rocha1, Maria H Senger1
1Universidade de São Paulo, Instituto de Estudos Avançados, Rua da Praça do Relógio, 109, 05508-050 São Paulo, SP, Brazil.
Anais da Academia Brasileira de Ciencias
|July 10, 2024
概括
最早的原始人,萨赫兰索普斯 (Sahelanthropus tchadensis),表现出与原始人,而不是猿类的强烈头骨亲缘关系. 这一发现支持它作为人类血统的早期成员或密切相关的祖先群体的地位.
科学领域:
- 古人类学古人类学.
- 灵长类动物学 灵长类动物学
- 人类进化人类进化
背景情况:
- 关于将 *Sahelanthropus tchadensis* 归类为最早的人类动物一直存在争议.
- 它的遗传位置和习惯性行为,特别是运动,由于其祖先和衍生特征的混合,仍然存在争议.
研究的目的:
- 为了研究 *Sahelanthropus tchadensis* 的头骨形态.
- 为了比较它的形态与大猿和其他人类来澄清它的进化关系.
主要方法:
- 用16个线性测量测量分析了*Sahelanthropus tchadensis*的形状.
- 使用主要成分分析 (PCA),考虑尺寸和形状,仅仅是形状,与化石大猿和原始人进行比较.
主要成果:
- *萨赫兰索普斯·查丹西斯 (Sahelanthropus tchadensis) *与人类类人猿相比,与人类类人猿有更强烈的形态亲缘关系.
- 这种模式适用于包括尺寸信息在内的分析和仅评估形状的分析.
- 特定的化石TM 266-01-060-1与研究中的其他原始人具有显著的形态相似性.
结论:
- 萨赫兰索普斯 (Sahelanthropus tchadensis) 的头骨形态支持其在人类血统中的分类.
- 结果表明,它要么是早期的原始人标本,要么是与原始人密切相关的基底血统,而不是帕尼尼部落 (黑猩猩和红猩猩).
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