n.三叶虫(生活于几百万年前的小型海洋生物，已成化石)

The fossil of the trilobite, an extinct marine arthropod, revealed intricate details of its exoskeleton.
这块三叶虫化石揭示了这种已灭绝海洋节肢动物外骨骼的复杂细节。
Trilobites dominated the oceans for over 270 million years, making them one of the most successful early animals.
三叶虫在超过2亿7千万年的时间里统治着海洋，使它们成为最早的生物之一最成功的种类。
Paleontologists have discovered numerous species of trilobites, each with unique features adapted to their environment.
古生物学家已经发现了许多种三叶虫，每种都有适应其环境的独特特征。
The eyes of some trilobite species were composed of hundreds of individual lenses, providing a wide field of vision.
某些三叶虫物种的眼睛由数百个单独的透镜组成，提供了广阔的视野。
Trilobites are important index fossils, helping scientists to date and correlate rock layers in different parts of the world.
三叶虫是重要的指相化石，帮助科学家们对世界各地不同岩层进行年代确定和相关性分析。
Fossilized trilobite tracks and burrows offer valuable insights into their behavior and habitat preferences.
化石化的三叶虫足迹和洞穴为了解它们的行为习性和栖息地偏好提供了宝贵信息。
Despite being extinct, trilobites continue to captivate both scientists and collectors due to their fascinating anatomy and diversity.
尽管已经灭绝，三叶虫因其迷人的解剖结构和多样性，仍然吸引着科学家和收藏家。
The discovery of a well-preserved trilobite in sedimentary rock can provide a wealth of information about ancient ecosystems.
在沉积岩中发现保存完好的三叶虫可以为了解古代生态系统提供大量信息。
Trilobites ranged in size from a few millimeters to over 70 centimeters, showcasing a remarkable range of body sizes within the group.
三叶虫的大小从几毫米到超过70厘米不等，展示了该群体内显著的体型范围。
Studying trilobite evolution gives researchers clues about how life adapted and diversified during the early stages of Earth's history.
研究三叶虫的进化过程为研究人员提供了关于地球历史早期阶段生命如何适应和多样化的线索。