| 单词 | 白垩纪 |
| 释义 | 〔triceratops〕A herbivorous dinosaur of the genusTriceratops, of the Cretaceous Period, having a bony plate covering the neck, a large horn above either eye, and a smaller horn on the nose. 三角龙：一种白垩纪的 属的食草性恐龙，有一骨质兜生在颈上，头骨上有两支大角生在眼上，中部一只较小的角生在鼻上 〔sauropod〕Any of various large semiaquatic dinosaurs of the suborder Sauropoda, of the Jurassic and Cretaceous periods.蜥脚类动物：侏罗纪和白垩纪的蜥脚亚目大型半水生恐龙〔stegosaur〕Any of several herbivorous dinosaurs of the suborderStegosauria of the Jurassic to the Cretaceous, having a double row of upright bony plates along the back, long hind legs, a short neck, and a relatively small head. 剑龙：任一种生存于侏罗纪到白垩纪剑龙 亚目的食草恐龙，背上有两排直立骨板，后腿长，脖子短，有相对小的头 〔pterodactyl〕Any of various small, mostly tailless, extinct flying reptiles of the order Pterosauria that existed during the Jurassic and Cretaceous periods.翼手龙：任一种小型已灭绝的翼龙目的飞行爬行动物，它们绝大多数都没有尾巴，生活在侏罗纪和白垩纪之间的那段时期〔Cretaceous〕Of, belonging to, or designating the geologic time, system of rocks, and sedimentary deposits of the third and last period of the Mesozoic Era, characterized by the development of flowering plants and the disappearance of dinosaurs. See table at geologic time 白垩纪的：属于或表明地质时期岩石体系以及中生代的第三和最后一个纪的沉积物的，此纪以有花植物的进化和恐龙的灭绝为特征 参见 geologic time〔tyrannosaur〕A large carnivorous dinosaur of the Upper Cretaceous Period of North America, characterized by small forelimbs and a large head.霸王龙：上白垩纪北美洲的一种大型食肉恐龙，前肢小且头大〔titanosaur〕Any of various plant-eating, amphibious sauropod dinosaurs of the genusTitanosaurus, common during the Cretaceous Period especially in South America. 雷龙：一种泰坦龙 ，食草的水陆两栖蜥脚类恐龙，在白垩纪的南美尤为常见 〔allosaur〕Any of various carnivorous dinosaurs of the late Jurassic and early Cretaceous Periods, similar to but smaller than the tyrannosaur.跃龙，异龙：侏罗纪晚期和白垩纪早期任一种食肉恐龙，形似霸王龙但体型较小〔iguanodon〕Any of various large dinosaurs of the genusIguanodon, of the Jurassic Period and Cretaceous Period. 禽龙：属于侏罗纪和白垩纪的禽龙属 中的任意一种大型恐龙 〔pachycephalosaur〕Any of various medium-sized herbivorous dinosaurs of the genusPachycephalosaurus of the late Cretaceous period of North America, having a beaked mouth, rows of bumps on the head, and a domed skull up to ten inches (25.4 cm) thick. 厚头龙：白垩纪晚期厚头龙 属几种中型食草恐龙，嘴部似鸟啄，头部有几排肿块，穹顶状头骨约10英寸（25.4公厘）厚 〔theropod〕Any of various carnivorous dinosaurs of the suborder Theropoda, of the Jurassic and Cretaceous periods, characterized by short forelimbs.兽角类：生活于侏罗纪和白垩纪且以其短的前肢为特征的兽角亚目食肉性恐龙〔Mesozoic〕Of, relating to, or being the third era of geologic time, including the Triassic Period, the Jurassic Period, and the Cretaceous Period and characterized by the development of flying reptiles, birds, and flowering plants and the appearance and extinction of dinosaurs. See table at geologic time 中生代的：包括三叠纪、侏罗纪和白垩纪在内的地质史上第三个时代的，它以飞行的爬虫类、鸟类及开花植物类的发展和恐龙的出现与灭绝为特征，或关于这个时代的 参见 geologic time〔ichthyosaur〕Any of various extinct fishlike marine reptiles of the order Ichthyosauria of the Triassic Period to the Cretaceous Period, having a porpoiselike head and an elongated, toothed snout.鱼龙：三叠纪至白垩纪间的属于鱼龙目的水生爬行动物中的任一种，现已绝迹，该动物头象海豚，喙长，有牙〔brachiosaur〕Any of various massive, herbivorous sauropod dinosaurs of the genus Brachiosaurus of the Jurassic and Cretaceous Periods, having a long flexible neck, nostrils above the eyes, and forelegs that were much longer than the hind legs. 鳃恐龙：侏罗纪和白垩纪时期鳃恐龙属 的几种巨大蜥脚类食草恐龙，具有灵活的长颈、鼻孔在眼睛上方、前腿比后腿长很多 〔ceratodus〕Any of various extinct lungfishes of the genusCeratodus, of the Triassic and Cretaceous periods. 澳洲肺鱼，角齿鱼：三叠纪和白垩纪的一种已灭绝的角齿鱼属 肺鱼 〔pterosaur〕Any of various extinct flying reptiles of the order Pterosauria, including the pterodactyls, of the Jurassic and Cretaceous periods, characterized by wings consisting of a flap of skin supported by the very long fourth digit on each forelimb.翼龙：任一种已灭绝的翼龙目能飞行的爬行动物，包括翼手龙，它们生活在侏罗纪和白垩纪之间的那段时期，翅膀由一块由每个前肢中非常长的脚趾支撑的皮构成〔pteranodon〕Any of several large pterosaurs of the genusPteranodon of the Cretaceous Period, having a long pointed head, a scooplike beak, no teeth, and a wingspan upwards of 6 meters (20 feet). 无齿翼龙：各种白垩纪时期无齿翼龙 属的大型翼龙，有大型尖头、勺子状的嘴，没有牙齿，并拥有超过6米（20英尺）以上的大翼展 〔ankylosaur〕A large herbivorous dinosaur of the Cretaceous Period, having a squat, heavily armored body and a clubbed tail.甲龙：白垩纪时期的大型食草恐龙，具有蹲坐的笨重披甲身体和棒状的尾巴〔ichthyornis〕Any of various extinct, toothed birds of the genusIchthyornis that existed during the Cretaceous Period. 鱼鸟：生存于白垩纪，现已灭绝的有牙齿的鱼鸟 属动物 |
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