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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >A new Late Miocene great ape from Kenya and its implications for the origins of African great apes and humans
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A new Late Miocene great ape from Kenya and its implications for the origins of African great apes and humans

机译：肯尼亚的新中新世大猿及其对非洲大猿和人类起源的影响

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摘要

Extant African great apes and humans are thought to have diverged from each other in the Late Miocene. However, few hominoid fossils are known from Africa during this period. Here we describe a new genus of great ape (Nakalipithecus nakayamai gen. et sp. nov.) recently discovered from the early Late Miocene of Nakali, Kenya. The new genus resembles Ouranopithecus mace-doniensis (9.6-8.7 Ma, Greece) in size and some features but retains less specialized characters, such as less inflated cusps and better-developed cingula on cheek teeth, and it was recovered from a slightly older age (9.9-9.8 Ma). Although the affinity of Ouranopithecus to the extant African apes and humans has often been inferred, the former is known only from southeastern Europe. The discovery of N. nakayamai in East Africa, therefore, provides new evidence on the origins of African great apes and humans. N. nakayamai could be close to the last common ancestor of the extant African apes and humans. In addition, the associated primate fauna from Nakali shows that hominoids and other non-cercopithecoid catarrhines retained higher diversity into the early Late Miocene in East Africa than previously recognized.
机译：在中新世晚期，现存的非洲大猩猩和人类彼此分开。但是，在此期间，从非洲知道的类人化石很少。在这里，我们描述了最近从肯尼亚纳卡里的中新世晚期发现的一种新的大猿猴属（Nakalipithecus nakayamai gen。et。nov。）。该新属在大小上和特征上类似于Ouranopithecus mace-doniensis（9.6-8.7 Ma，希腊），但保留了较少的特殊性状，例如，较少的膨大的牙尖和颊齿上的改良的扣毛，并从稍大的年龄中恢复了过来。 （9.9-9.8马）。尽管经常推断出天龙猿对现存的非洲猿类和人类的亲和力，但前者仅在东南欧才知道。因此，东非中山猪笼草的发现为非洲大猿猴和人类的起源提供了新的证据。中山猪笼草可能接近现存非洲猿猴和人类的最后祖先。此外，来自纳卡利的相关灵长类动物区系显示，类人动物和其他非二十足类拟南芥卡他汀类药物在东非的中新世晚期保留了比以前公认的更高的多样性。

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