trilobite

简明释义

英[ˈtraɪləʊbaɪt]美[ˈtraɪləbaɪt]

n. [古生] 三叶虫

英英释义

单词用法

同义词

反义词

例句

1.Even the simple trilobite has an eye (complete with its double lens system) that's considered an optical miracle by today's standards.

按照今天的标准，即使是简单的三叶虫，它的眼睛(完美的双镜头系统)也是一个光学奇迹。

2.Two others of these trilobite fossils have been found in the same area.

在同一地区还发现了另外两块这些三叶虫化石。

3.The Trilobite scuttles around homes emitting ultrasound signals to create maps of rooms, which are remembered for future cleaning.

三叶虫在房屋周围飞来飞去，发出超声波信号，绘制出房间的地图，以备日后清洁时使用。

4.Thee trilobite can clean a room on its own, using sound waves to feel its way around.

三叶虫可以利用声波探路，从而自己打扫房间。

5.In that study, each of eight different trilobite species was observed to undergo a gradual change in the number of segments.

在这项研究中，观察到八种不同的三叶虫，每一种都经历了身体节数的逐渐变化。

6.Therefore the deficiency of pre-Cambrian fossil and the sudden emergence of Cambrian trilobite are like a double edged sword posing threat for the very foundation of Darwin evolutionism.

因而前寒武纪化石的缺失和寒武纪三叶虫等突发式出现，好象一把双刃剑，对达尔文演化学说的塔基构成了威胁。

7.This approach is exemplified by vacuuming robots such as the Electrolux Trilobite.

伊莱克斯三叶虫等吸尘机器人，就是很好的例子。

8.Therefore the deficiency of pre-Cambrian fossil and the sudden emergence of Cambrian trilobite are like a double edged sword posing threat for the very foundation of Darwin evolutionism.

因而前寒武纪化石的缺失和寒武纪三叶虫等突发式出现，好象一把双刃剑，对达尔文演化学说的塔基构成了威胁。

9.Scientists study trilobites 三叶虫 to understand ancient marine ecosystems.

科学家研究三叶虫以了解古代海洋生态系统。

10.Many children are fascinated by the unique shape of a trilobite 三叶虫 shell.

许多孩子对三叶虫壳的独特形状感到着迷。

11.The fossil of a trilobite 三叶虫 was discovered in the sedimentary rock.

在沉积岩中发现了一只三叶虫的化石。

12.In paleontology, trilobites 三叶虫 are often used as index fossils.

在古生物学中，三叶虫通常用作指示化石。

13.The trilobite 三叶虫 is one of the earliest known arthropods.

三叶虫是已知最早的节肢动物之一。

作文

The world of paleontology is filled with fascinating creatures that once roamed the Earth, and among them, the trilobite stands out as one of the most intriguing. This ancient marine arthropod existed for over 270 million years, thriving during the Paleozoic Era before becoming extinct around 252 million years ago. The name trilobite comes from the Greek words 'tri' meaning three and 'lobos' meaning lobe, which refers to the three-lobed body structure that characterizes these remarkable organisms. Their unique anatomy, including a hard exoskeleton and segmented body, allowed them to adapt to various marine environments, making them one of the most successful groups of early animals.The fossil record reveals that there were over 20,000 species of trilobites, showcasing a remarkable diversity in size, shape, and ecological niche. Some were small, measuring just a few millimeters, while others grew up to 70 centimeters in length. Their bodies were divided into three main parts: the cephalon (head), the thorax (body), and the pygidium (tail). This segmentation not only provided flexibility but also protection against predators. The eyes of trilobites were particularly notable; many had compound eyes similar to those of modern insects, allowing them to see their surroundings effectively.The importance of trilobites in understanding the history of life on Earth cannot be overstated. They serve as excellent index fossils, helping geologists and paleontologists date the rocks in which they are found. Because different species of trilobites appeared and disappeared at specific times, their presence in a rock layer can indicate the age of that layer. This has made trilobites crucial for reconstructing the geological timeline and understanding the evolution of marine ecosystems.Moreover, the extinction of trilobites at the end of the Permian period, known as the Great Dying, marked one of the most significant mass extinctions in Earth's history. Approximately 90% of marine species disappeared during this event, and the loss of trilobites was a clear indicator of the drastic changes occurring in the planet's environment. Studying these extinctions provides valuable insights into the resilience and adaptability of life, as well as the factors that can lead to widespread biodiversity loss.Today, trilobites continue to captivate scientists and enthusiasts alike. Fossilized remains can be found on every continent, and many collectors seek out these ancient relics as a hobby. Museums often feature trilobite exhibits, highlighting their significance in the history of life. Additionally, advancements in technology have allowed researchers to study trilobite fossils in greater detail, revealing new information about their biology and behavior.In conclusion, the trilobite is not just a relic of the past; it is a symbol of the complexity and diversity of life on Earth. Its enduring legacy reminds us of the intricate web of life that has evolved over millions of years. By studying trilobites, we gain a deeper appreciation for the history of our planet and the myriad forms of life that have inhabited it. As we continue to explore and uncover the secrets of the past, the trilobite will undoubtedly remain a key piece of the puzzle, offering insights into both the ancient world and the ongoing story of evolution.

古生物学的世界充满了曾经在地球上游荡的迷人生物，其中三叶虫作为最引人入胜的生物之一而脱颖而出。这种古老的海洋节肢动物存在了超过2.7亿年，在古生代繁荣生长，直到大约2.52亿年前灭绝。三叶虫这个名字来源于希腊语，'tri'意为三，'lobos'意为叶，指的是这些非凡生物特有的三叶体结构。它们独特的解剖结构，包括坚硬的外骨骼和分段的身体，使它们能够适应各种海洋环境，使其成为早期动物中最成功的群体之一。化石记录显示，曾经存在超过20000种三叶虫，展示了在大小、形状和生态位方面的惊人多样性。有些体型较小，仅几毫米，而其他的则可以长到70厘米。它们的身体分为三个主要部分：头部（cephalon）、身体（thorax）和尾部（pygidium）。这种分段不仅提供了灵活性，还保护了它们免受捕食者的攻击。三叶虫的眼睛特别显著；许多具有类似现代昆虫的复眼，使它们能够有效地观察周围环境。三叶虫在理解地球生命历史中的重要性不容小觑。它们作为优秀的指标化石，帮助地质学家和古生物学家确定它们所发现的岩石的年代。由于不同种类的三叶虫在特定时期出现和消失，因此它们在岩层中的存在可以指示该岩层的年龄。这使得三叶虫对重建地质时间表和理解海洋生态系统的演变至关重要。此外，三叶虫在二叠纪末期的灭绝，即伟大的死亡，标志着地球历史上最重要的大规模灭绝事件之一。在这一事件中，约90%的海洋物种消失，而三叶虫的消失清楚地表明了地球环境发生的剧烈变化。研究这些灭绝现象为我们提供了有关生命的韧性和适应能力的宝贵见解，以及导致广泛生物多样性丧失的因素。今天，三叶虫仍然吸引着科学家和爱好者。化石遗骸可以在每个大洲找到，许多收藏家将这些古老的遗物视为一种爱好。博物馆通常会展示三叶虫的展览，强调它们在生命历史中的重要性。此外，技术的进步使研究人员能够更详细地研究三叶虫化石，揭示有关其生物学和行为的新信息。总之，三叶虫不仅是过去的遗物；它是地球生命复杂性和多样性的象征。它持久的遗产提醒我们，数百万年来，生命的错综复杂的网络不断演化。通过研究三叶虫，我们更加深刻地理解了我们星球的历史以及曾经栖息于此的无数生命形式。随着我们继续探索和揭示过去的秘密，三叶虫无疑将仍然是拼图的关键部分，为我们提供关于古代世界和持续演变故事的深刻见解。