据中国科学院南京地质古生物研究所近日消息，一支由科研团队组成的科学家们在华北燕山地区发现了一批距今约16.3亿年的多细胞真核生物化石。这一发现是自2016年在燕山地区发现15.6亿年前全球最早的宏体多细胞真核生物化石之后的又一重要突破，将多细胞真核生物出现的时间进一步提前了7千万年。
这些化石是单列细胞组成的无分枝的丝状体，丝状体直径从20-194微米不等，最长的可达860微米，它们无外鞘。尽管由于保存不完整，完整的丝状体长度未知，但它们的出现对理解地球早期生命的演化具有重要意义。
据了解，这些化石的发现是由哈佛大学教授Andrew Knoll和中国科学院深海科学与工程研究所研究员屈原皋参与的。 Andrew Knoll教授表示，这是一项具有重大科学价值的研究，它揭示了多细胞真核生物出现的可能比 previously thought要早。
此次发现得到了国家重点研发计划、国家自然科学基金和中国科学院创新交叉团队的联合资助。此次发现为我国科学界的重要突破，也为人类对地球早期生命演化的理解提供了新的视角和工具。
英语如下：
Headline: Chinese scientists unearth world’s earliest multicellular eukaryote fossils in Inner Mongolia
Keywords: earliest multicellular eukaryote fossil, evolution of multicellular eukaryotes, significant life evolution event discovered by Chinese scientists
Content: According to a recent message from the Nanjing Geological Museum and Institute ofsedIMPORTANTance
These fossils, composed of filamentous structures with single cells, were found in the North China region, some 1.63 billion years ago. The discovery is another important breakthrough after the discovery of the world’s earliest macroscopic multicellular eukaryote fossil in Yanshan region in 2016, and it further advanced the age of the appearance of multicellular eukaryotes by 7 million years.
These fossils are composed of filamentous structures with no branches, and their diameters vary from 20 to 194 microns. Although the longest ones can reach 860 microns in length, they have no外套. Although the complete structure of these filaments is unknown due to incomplete preservation, their appearance is of great significance for understanding the evolution of early life on Earth.
According to Andrew Knoll, a professor at Harvard University and a researcher at the Institute of Deep Sea Science and Technology of the Chinese Academy of Sciences, this is a research with significant scientific value that reveals that multicellular eukaryotes may have appeared earlier than previously thought.
It is reported that the discovery was jointly funded by the National Key R&D Program, the National Natural Science Foundation, and the Innovative Cross-disciplinary Research Team of the Chinese Academy of Sciences. This discovery is an important breakthrough in the Chinese scientific community and provides new perspectives and tools for understanding the evolution of early life on Earth.
【来源】https://www.ithome.com/0/747/619.htm
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