元谋小河-竹棚与雷老地点古猿牙齿特征的对比分析

针对学术界持有不同看法的在元谋盆地发现的古猿化石是否代表着两个种的争议 ,本文把迄今在元谋发现的全部古猿牙齿化石按地点分为小河 -竹棚和雷老两组 ,从牙齿形态特征、测量数据分析及犬齿形态指数三方面对出自元谋不同地点的古猿在牙齿特征上的相似及差异程度进行了对比。结果显示在本文所对比的牙齿特征中 ,不同地点的古猿牙齿在形态特征、牙齿大小及犬齿形态比例的表现非常相似 ,未发现它们彼此之间在这些特征上存在任何明显的差别。作者认为本研究不支持在元谋不同地点发现的古猿之间存在不同种类的观点。

THE COMPARISONS OF YUANMOU HOMINOID TOOTH TRAITS BETWEEN THE SAMPLES FROM XIAOHE-ZHUPENG AND LEILAO SITES

For the long-term debate whether the hominoids found from the Yunamou basin represented two species, the present study divided the Yuanmou hominoid teeth into two groups of Xiaohe-Zhupeng and Leilao according to their geographical distribution. Further comparisons of dental morphology, metric data and canine shape indices between the two groups were carried out. Our results indicate that the teeth of Yuanmou hominoid from different sites are very similar in all the comparisons of present study. No marked differences were found between the two groups. The authors believe that our study does not support the opinion that there are different species of Yuanmou hominoid living in Xiaohe, Zhupeng and Leilao sites.