cambrian period

简明释义

寒武纪

英英释义

例句

1.The fossils found in the cambrian period 寒武纪 layers are crucial for understanding early life on Earth.

在寒武纪层中发现的化石对于理解地球早期生命至关重要。

2.The cambrian period 寒武纪 is often referred to as the 'Cambrian Explosion' due to the rapid diversification of life.

寒武纪通常被称为“寒武纪大爆发”，因为生命的快速多样化。

3.Studying the geological formations from the cambrian period 寒武纪 helps paleontologists trace evolutionary history.

研究来自寒武纪的地质构造有助于古生物学家追踪进化历史。

4.Many marine animals, such as trilobites, first appeared in the cambrian period 寒武纪.

许多海洋动物，如三叶虫，首次出现在寒武纪。

5.Scientists believe that the explosion of biodiversity during the cambrian period 寒武纪 laid the foundation for modern ecosystems.

科学家们认为，寒武纪期间生物多样性的爆炸性增长为现代生态系统奠定了基础。

作文

The Cambrian Period marks a significant chapter in the history of life on Earth, occurring approximately 541 to 485 million years ago. This era is renowned for the 'Cambrian Explosion,' a remarkable event during which a vast diversity of life forms emerged in the oceans. Prior to the Cambrian Period, the fossil record reveals that most organisms were simple and unicellular. However, as the Cambrian Period unfolded, multicellular life began to flourish, leading to the development of complex ecosystems. This period is characterized by the first appearance of many major groups of animals, including arthropods, mollusks, and early vertebrates.The environmental conditions of the Cambrian Period played a crucial role in this biological diversification. The oceans were rich in nutrients, and the climate was relatively warm, providing an ideal habitat for the proliferation of life. Fossil evidence from this period shows a variety of body plans and structures, indicating a rapid evolutionary experimentation. The emergence of hard shells and exoskeletons during the Cambrian Period allowed for better protection against predators and contributed to the fossilization of these organisms, giving paleontologists invaluable insights into early life on Earth.One of the most famous fossil sites from the Cambrian Period is the Burgess Shale in Canada, where exceptionally well-preserved soft-bodied organisms have been discovered. These fossils offer a glimpse into the complexity and diversity of Cambrian life, revealing creatures with unique anatomical features that challenge our understanding of evolutionary relationships. The study of the Cambrian Period not only enhances our knowledge of the past but also informs us about the processes of evolution and extinction that continue to shape life today.In addition to its biological significance, the Cambrian Period holds geological importance as well. The sedimentary rocks formed during this time provide crucial information about the Earth's ancient environments and the changes that occurred over millions of years. Understanding the geology of the Cambrian Period helps scientists reconstruct past climates and sea levels, offering insights into how our planet has evolved over time.As we explore the Cambrian Period, we are reminded of the interconnectedness of life and the ever-changing nature of our planet. The lessons learned from this period of rapid diversification can be applied to current biodiversity challenges. By studying the factors that contributed to the success of life during the Cambrian Period, we can better appreciate the delicate balance of ecosystems and the importance of conservation efforts today.In conclusion, the Cambrian Period represents a pivotal moment in the history of life on Earth. Its legacy is one of innovation and diversity, laying the foundation for the complex tapestry of life we see today. Through continued research and exploration, we can uncover more secrets of this fascinating period and enhance our understanding of the evolutionary journey that has shaped all living organisms.

Cambrian Period（寒武纪）是地球生命历史中的一个重要篇章，发生在大约5亿4千1百万到4亿8千5百万年前。这个时代以“寒武纪大爆发”而闻名，这是一个生物多样性在海洋中迅速涌现的显著事件。在Cambrian Period之前，化石记录显示大多数生物都是简单的单细胞生物。然而，随着Cambrian Period的发展，多细胞生命开始蓬勃发展，导致复杂生态系统的形成。这个时期的特点是许多主要动物类群的首次出现，包括节肢动物、软体动物和早期脊椎动物。Cambrian Period的环境条件在这种生物多样性中起着至关重要的作用。海洋富含营养物质，气候相对温暖，为生命的繁荣提供了理想的栖息地。来自这一时期的化石证据显示出多种身体结构和形态，表明快速的进化实验。硬壳和外骨骼的出现使得生物能够更好地抵御捕食者，并促进了这些生物的化石化，为古生物学家提供了关于地球早期生命的宝贵见解。加拿大的伯吉斯页岩是Cambrian Period最著名的化石遗址之一，在那里发现了保存极好的软体生物。这些化石为我们提供了寒武纪生命的复杂性和多样性的窗口，揭示了具有独特解剖特征的生物，这挑战了我们对进化关系的理解。对Cambrian Period的研究不仅增强了我们对过去的知识，也为我们提供了关于进化和灭绝过程的见解，这些过程继续塑造着今天的生命。除了生物学上的重要性外，Cambrian Period在地质学上也具有重要意义。在这一时期形成的沉积岩提供了关于地球古代环境和数百万年来发生的变化的重要信息。了解Cambrian Period的地质情况有助于科学家重建过去的气候和海平面，从而提供关于我们星球如何随着时间演变的见解。当我们探索Cambrian Period时，我们被提醒生命的相互联系以及我们星球的不断变化。寒武纪快速多样化所带来的教训可以应用于当前的生物多样性挑战。通过研究促成Cambrian Period生命成功的因素，我们可以更好地欣赏生态系统的微妙平衡以及当今保护努力的重要性。总之，Cambrian Period代表了地球生命历史中的一个关键时刻。它的遗产是创新和多样性的象征，为我们今天看到的复杂生命图谱奠定了基础。通过持续的研究和探索，我们可以揭开这一迷人时期的更多秘密，增强我们对塑造所有生物的进化旅程的理解。