首页> 外文期刊>Nature >A euprimate skull from the early Eocene of China
【24h】

A euprimate skull from the early Eocene of China

机译:中国早期始新世的灵长类动物头骨

获取原文
获取原文并翻译 | 示例
           

摘要

The debut of undoubted euprimates (primates of modern aspect) was in the early Eocene, about 55 Myr ago. Since their first appearance, the earliest euprimates can be distinguished as Cantius, Donrussellia and Teilhardina. Nonetheless, the earliest euprimates are primarily known from isolated teeth or fragmentary jaws. Here we describe a partially preserved euprimate skull with nearly complete upper and lower dentition, which represents a new species of Teilhardina and constitutes the first discovery of the genus in Asia. The new species is from the upper section of Lingcha Formation, Hunan Province, China, with an estimated age of 54.97 Myr ago. Morphology and phylogeny analyses reveal that the new species is the most primitive species of Teilhardina, positioned near the root of euprimate radiation. This discovery of the earliest euprimate skull known to date casts new light on the debate concerning the adaptive origin of euprimates, and suggests that the last common ancestor of euprimates was probably a small, diurnal, visually oriented predator.
机译:毋庸置疑的灵长类动物(现代方面的灵长类动物)是在始祖始于始新世(大约55迈尔)。自首次出现以来,最早的富豪可以分为Cantius,Donrussellia和Teilhardina。尽管如此,最早的富足主要是从孤立的牙齿或不完整的颌骨中得知的。在这里,我们描述了一个部分保存的具有几乎完整的上下牙系的灵长类动物头骨,它代表了一种新的铁线虫属,并构成了亚洲该属的第一个发现。该新物种来自中国湖南省灵查组的上部,估计年龄为54.97 Myr以前。形态学和系统发育分析表明,新物种是Teilhardina的最原始的物种,位于真细菌辐射的根部附近。迄今已知的最早的灵长类动物头骨的发现,为有关灵长类动物适应性起源的争论提供了新的思路,并暗示了灵长类动物的最后共同祖先可能是一个小的,昼夜的,视觉导向的掠食者。

著录项

  • 来源
    《Nature》 |2004年第6969期|p.65-68|共4页
  • 作者单位

    Institute of Vertebrate Paleontology and Paleoanthropalogy, Chinese Academy of Sciences, Beijing 100044, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然科学总论;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号