来自中国南部江山洞的MIS 3-2的现代人类牙遗骸
Shengnan Yu1, Clément Zanolli2, Ping Lai3
1Institute of Cultural Heritage, Shandong University, Qingdao, China.
American journal of biological anthropology
|October 6, 2025
概括
来自建山洞的化石牙,可追溯到33.5-19.5千年前,证实了中国南部早期现代人类 (智人) 的存在. 这些发现有助于理解人类进化和在晚期普莱斯托纪时期的分散.
科学领域:
- 古人类学古人类学.
- 人类进化人类进化
- 考古学的考古学
背景情况:
- 由于化石稀缺和日期不清楚,中国南部的普世后期人类进化不太清楚.
- 山洞为这个时期提供了新的化石证据.
研究的目的:
- 分析来自江山洞的两个人类牙,以确定它们的分类学亲和关系.
- 为了建立化石的时间框架.
- 为了测试牙是否比其他晚期普莱斯托时代的原始人更符合智人.
主要方法:
- 放射性碳 (AMS 14C),光学刺激发光 (OSL) 和系列约会被用于时间限制.
- 进行了传统的形态和尺度分析.
- 采用了质 - 牙结形状的不同形状的表面匹配.
主要成果:
- 江山的牙可以追溯到33.5到19.5千年前.
- 形态和3D分析证实牙属于智人.
- 与其他区域化石相比,牙显示出差异,表明了形态多样性.
结论:
- 江山洞是一个重要的古人类学遗址,提供了在海洋同位素阶段 (MIS) 3-2期间在中国南部现代人类进化的证据.
- 这些发现表明,现代人类在该地区可能发生多次分散事件.
- 为了更详细的解释,需要进一步研究精确的约会.
更多相关视频
06:18Optimized Bone Sampling Protocols for the Retrieval of Ancient DNA from Archaeological Remains
Published on: November 30, 2021
5.0K
10:23Author Spotlight: Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
Published on: September 8, 2023
3.6K
相关概念视频
01:21Tooth Anatomy
2.0K
The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
2.0K
01:15Teeth
1.6K
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
1.6K
01:27Cranial Bones: Lateral View
4.3K
The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
4.3K