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Tooth size in Chinese Oroqen ethnic minority of Inner Mongolia Autonomous Region

机译:内蒙古自治区鄂伦春族的牙齿大小

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The Oroqen are Tungusic hunters of the Amur River basin. We analyzed dental crown measurements from their dental impression models for anthropological characteristics. Sex difference was comparatively larger in the mesiodistal diameters. To examine the Mongoloids' distribution in the Northeast Asia, the data were compared with the results from the previous studies on other Northeast Asian races, using deviation diagrams, cluster analysis, and Multidimensional Scaling from Q-mode correlation coefficients. The Oroqen dentition is classified as Sinodont by the large surface area of their crowns. In the deviation diagram, the Oroqen beared an inverse proportion to the Aleutian Islanders, while showing little difference from the Okhotsk culture people, which suggested a close relation between the two races. The Q-mode correlation coefficients clustered the Oroqen into the Central Asian group with the Buriats and Mongolians. In the analysis of the distances transformed from Q-mode correlation coefficients, the Oroqen was delineated in the neighboring cluster to the Epi-Jomon/Satsumon and the Okhotsk people. It is inferred that the Central Asian group, spreading from Lake Baikal to the Amur basin have gradually mixed with the Baikal group, which later moved into the Amur region from the south. The mixing of the two groups could have been influenced by the geographical features of this area. It would be valuable to gather more data on the groups around the lower Amur region and to evaluate the distribution of the Mongoloids in Eastern Asia.
机译:鄂伦春是阿穆尔河盆地的通古斯猎人。我们从他们的牙齿印模中分析了牙冠测量的人类学特征。在近中生直径上,性别差异相对较大。为了检查蒙古人种在东北亚的分布,使用偏差图,聚类分析和基于Q模式相关系数的多维标度,将数据与先前对其他东北亚种族的研究结果进行了比较。鄂伦春族的牙列因其冠的大表面积而被归类为西顿氏菌。在偏差图中,鄂伦春人与阿留申群岛人的比例成反比,与鄂霍次克文化的人几乎没有区别,这暗示着两个种族之间的密切关系。 Q型相关系数将鄂伦春族与布里亚特人和蒙古人聚为中亚群体。在对从Q模式相关系数转换的距离进行分析时,将Oroqen划定为邻近群中的Epi-Jomon / Satsumon和Okhotsk人。据推测,从贝加尔湖扩展到阿穆尔盆地的中亚集团与贝加尔集团逐渐融合在一起,贝加尔集团后来从南部进入阿穆尔地区。两组的混合可能已受到该地区地理特征的影响。收集有关阿穆尔河下游地区的更多数据并评估东亚蒙古人种的分布将很有价值。

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