ornithopod

简明释义

英[ˌɔrnɪˈθɒpəd]美[ˌɔrnɪˈθɒpəd]

鸟脚亚目恐龙

英英释义

单词用法

同义词

反义词

例句

1.The fossilized remains belonged to the ornithopod ( having legs or feet like those of a bird ) family. said jin liyong, curator of the museum of jilin university.

该恐龙残骸属于鸟脚亚目恐龙（象有腿和脚的鸟一样） ，据吉林大学博物馆馆长金利勇讲。

2.The fossilized remains belonged to the ornithopod ( having legs or feet like those of a bird ) family. said jin liyong, curator of the museum of jilin university.

该恐龙残骸属于鸟脚亚目恐龙（象有腿和脚的鸟一样） ，据吉林大学博物馆馆长金利勇讲。

3.The ornithopod family includes famous dinosaurs like Iguanodon and Parasaurolophus.

鸟脚亚目家族包括著名的恐龙如鸭嘴龙和副栉龙。

4.Paleontologists discovered new fossils of an ornithopod in the desert.

古生物学家在沙漠中发现了新的鸟脚亚目化石。

5.The ornithopod's distinct beak was used for browsing on vegetation.

这个鸟脚亚目独特的喙用于啃食植物。

6.The museum's dinosaur exhibit features a life-sized model of an ornithopod.

博物馆的恐龙展览展示了一个真实大小的鸟脚亚目模型。

7.Children learned about the different types of ornithopods during their field trip.

孩子们在实地考察中学习了不同类型的鸟脚亚目。

作文

The world of dinosaurs is vast and fascinating, filled with an array of species that roamed the Earth millions of years ago. Among these ancient creatures, the group known as ornithopods (鸟臀目) stands out due to their unique characteristics and evolutionary significance. These herbivorous dinosaurs were primarily bipedal, meaning they walked on two legs, although some species could also move on all fours. This adaptability allowed them to thrive in various environments during the Late Jurassic and Cretaceous periods.One of the most remarkable features of ornithopods (鸟臀目) is their dental structure. They possessed a complex arrangement of teeth that enabled them to efficiently process tough plant material. Their teeth were continuously replaced throughout their lives, similar to modern-day reptiles. This adaptation was crucial for survival, as it allowed them to exploit a wide range of vegetation, from ferns to flowering plants. The ability to graze on diverse flora played a significant role in their success as a group.Some of the most well-known ornithopods (鸟臀目) include the Iguanodon and the Hadrosaurus. The Iguanodon is particularly famous for its distinctive thumb spikes, which were likely used for defense against predators or for foraging. Meanwhile, Hadrosaurs, often referred to as 'duck-billed dinosaurs' due to their flat, duck-like snouts, exhibited a variety of adaptations that made them highly successful. They had complex social structures and are believed to have traveled in herds, providing safety in numbers against larger carnivorous dinosaurs.The evolutionary history of ornithopods (鸟臀目) is a testament to the dynamic nature of life on Earth. Fossil evidence suggests that these dinosaurs evolved from earlier, smaller theropod ancestors. Over time, they diversified into numerous species, each adapted to specific ecological niches. This diversification is a prime example of adaptive radiation, where a single lineage evolves into a variety of forms to exploit different resources.Paleontologists have discovered numerous fossils of ornithopods (鸟臀目) around the world, providing valuable insights into their biology and behavior. For instance, some fossils have revealed fossilized footprints, indicating that these dinosaurs were social creatures that moved in groups. Additionally, the discovery of nesting sites has shed light on their reproductive habits. Evidence suggests that ornithopods (鸟臀目) exhibited parental care, as some nests contained both eggs and juvenile specimens, indicating that adults likely protected their young.Understanding ornithopods (鸟臀目) is not only important for paleontology but also for comprehending the evolution of herbivorous dinosaurs as a whole. Their adaptations and ecological roles highlight the intricate relationships between different species and their environments. As we continue to uncover more fossils and improve our understanding of these magnificent creatures, we gain deeper insights into the complexities of prehistoric ecosystems.In conclusion, ornithopods (鸟臀目) represent a significant chapter in the story of dinosaurs. Their unique adaptations, social behaviors, and evolutionary history make them a fascinating subject of study. By exploring their lives, we not only learn about the past but also gain a greater appreciation for the diversity of life that has existed on our planet. As we delve deeper into the fossil record, the legacy of ornithopods (鸟臀目) continues to inspire awe and curiosity about the natural world and its ancient inhabitants.

恐龙的世界广阔而迷人，充满了数百万年前在地球上漫游的各种物种。在这些古老生物中，被称为鸟臀目(ornithopods) 的群体因其独特的特征和进化意义而脱颖而出。这些草食性恐龙主要是双足行走的，这意味着它们用两条腿走路，尽管一些物种也可以四足移动。这种适应性使它们能够在晚侏罗世和白垩纪时期的各种环境中繁荣发展。鸟臀目(ornithopods) 最显著的特征之一是它们的牙齿结构。它们拥有复杂的牙齿排列，使它们能够有效地处理坚韧的植物材料。它们的牙齿在一生中会不断更替，类似于现代的爬行动物。这种适应性对生存至关重要，因为它使它们能够利用从蕨类植物到开花植物的广泛植被。能够在多样的植物上觅食对它们作为一个群体的成功发挥了重要作用。一些最著名的鸟臀目(ornithopods)包括伊瓜纳龙(Iguanodon)和鸭嘴龙(Hadrosaurus)。伊瓜纳龙因其独特的拇指刺而特别著名，这些刺可能用于防御捕食者或觅食。同时，鸭嘴龙由于其扁平的、像鸭子一样的嘴巴而被称为“鸭嘴恐龙”，展现出许多适应性，使它们非常成功。它们具有复杂的社会结构，并被认为成群结队地移动，以便在面对更大的肉食性恐龙时提供数量上的安全。鸟臀目(ornithopods)的进化历史证明了地球生命的动态本质。化石证据表明，这些恐龙是从早期的小型兽脚亚目祖先演化而来的。随着时间的推移，它们分化为众多物种，每种物种都适应特定的生态位。这种多样化是适应性辐射的典范，其中单一谱系演变为多种形式以利用不同的资源。古生物学家在世界各地发现了大量鸟臀目(ornithopods)的化石，为我们提供了关于它们生物学和行为的宝贵见解。例如，一些化石揭示了化石化的足迹，表明这些恐龙是社会性生物，成群移动。此外，巢穴遗址的发现阐明了它们的繁殖习性。证据表明，鸟臀目(ornithopods)表现出父母照顾的行为，因为一些巢穴中包含了卵和幼崽，表明成年恐龙可能会保护它们的幼崽。理解鸟臀目(ornithopods)不仅对古生物学重要，也对理解草食性恐龙整体的进化至关重要。它们的适应性和生态角色突显了不同物种与其环境之间错综复杂的关系。随着我们继续发现更多化石并改善对这些宏伟生物的理解，我们对史前生态系统的复杂性有了更深入的认识。总之，鸟臀目(ornithopods)代表了恐龙故事中的重要一章。它们独特的适应性、社会行为和进化历史使它们成为一个引人入胜的研究对象。通过探索它们的生活，我们不仅了解过去，还对我们星球上曾经存在的生命多样性有了更深的欣赏。随着我们深入化石记录，鸟臀目(ornithopods)的遗产继续激发对自然世界及其古代居民的敬畏和好奇。