Late Miocene teeth from Middle Awash, Ethiopia, and early hominid dental evolution
Late Miocene teeth from Middle Awash, Ethiopia, and early hominid dental evolution
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DOI：
10.1126/science.1092978
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发表时间：
2004-03-05
期刊：
影响因子：
56.9
通讯作者：
White, TD
中科院分区：
文献类型：
--
作者：
Haile-Selassie, Y;Suwa, G;White, TD
在埃塞俄比亚中阿瓦什发现的晚中新世原始人牙齿化石被认为是Ardipithecus kadabba。其原始形态和磨损模式表明A. kadabba不同于Ardipithecus ramidus。这些化石表明，猿类和人类最后的共同祖先有一个功能性的犬齿-第三前磨牙复合体。与另外两个中新世晚期人科属萨赫勒人属和原林人属的牙齿比较，表明这些推定的分类群与A.卡达巴。因此，根据现有的样本来研究广泛的晚中新世人科动物多样性还为时过早。
Late Miocene fossil hominid teeth recovered from Ethiopia's Middle Awash are assigned to Ardipithecus kadabba. Their primitive morphology and wear pattern demonstrate that A. kadabba is distinct from Ardipithecus ramidus. These fossils suggest that the last common ancestor of apes and humans had a functionally honing canine-third premolar complex. Comparison with teeth of Sahelanthropus and Orrorin, the two other named late Miocene hominid genera, implies that these putative taxa are very similar to A. kadabba. It is therefore premature to posit extensive late Miocene hominid diversity on the basis of currently available samples.