小苹果花苑
恐龙是日本生物学家对英文Dinosauria即“恐怖的蜥蜴”（恐蜴）的翻译，汉语界接受了日文译词，应该知道它不属于汉语的龙类。在1861年发现的始祖鸟化石，与美颌龙化石极度相似，差别在于始祖鸟化石有着羽毛痕迹，这显示恐龙与鸟类可能是近亲。自从1970年代以来，许多研究指出现代鸟类极可能是兽脚亚目恐龙的直系后代。大部分科学家视鸟类为唯一幸存发展至今的恐龙，而少数科学家甚至主张它们应该分类于同一纲之内。鳄鱼则是另一群恐龙的现代近亲，但两者关系较恐龙与鸟类远。恐龙、鸟类、鳄鱼都属于爬行动物的主龙类演化支，该演化支首次出现于二叠纪晚期，并在三叠纪中期成为优势陆栖动物群。所有的恐龙皆为陆地动物。许多史前爬行动物常被一般大众非正式地认定是恐龙，例如：翼手龙、鱼龙、蛇颈龙、沧龙、盘龙类（异齿龙与基龙）等，但从科学角度来看，这些都不是恐龙。ThedinosauristheJapanesebiologistnamely"terriblelizardonEnglishDinosauria"(fearoflizard)translation,theChinesecommunitytoaccepttheJapaneseword,shouldknowthatitdoesnotbelongtotheChinesedragon.In1861discoveredArchaeopteryxfossils,extremelysimilartocompsognathusfossils,thedifferenceisarchaeopteryxfossiltracesofafeather,indicatingthatdinosaursandbirdsmaybethenextofkin.Sincethe1970's,manystudieshavepointedoutthatmodernbirdsmostlikelyTheropodaadirectdescendantofthedinosaurs.Mostscientistsregardastheonlysurvivingspeciessincethedinosaurs,butafewscientistsevenclaimedthattheyshouldbeclassifiedwithinthesameclass.Thecrocodileisthemodernrelativesanothergroupofdinosaurs,buttherelationshipbetweendinosaursandbirdsisfarmore.Thedinosaurs,birds,crocodilesarereptilesofthearchosaurclade,theevolutionofafirstappearedintheLatePermianMiddleTriassic,andbecomethedominantterrestrialanimalgroup.Allthedinosaursareterrestrialanimal.Manyprehistoricreptilesoftenisthegeneralpublicinformallyasdinosaurs,pterosaurs,forexample:ichthyosaurs,plesiosaurs,mosasaurs,(thepelycosaursdimetrodonandedaphosaurus),butfromascientificpointofview,thesearenotthedinosaur.
孙先生孙太太
简要介绍 Brief introduction 所有恐龙已经灭绝，但是恐龙的后代——鸟类存活下来，并繁衍至今。 All dinosaurs extinct, but the dinosaur offspring - birds survival, and grew so far. 恐龙（英文：dinosaur英音['dainəsɔ:]美音['daɪnə,sɔr]）是生活在距今大约2亿3 恐龙 Dinosaurs (English: dinosaur British sound [' dain ə s ɔ:] the beautiful sound [' da ɪ n ə, s ɔ r]) live in is about 2 million dating three dinosaurs 500万年至6595万年前的、能以后肢支撑身体直立行走的一类陆生动物，是群中生代的多样化优势脊椎动物，大多数属于陆生（栖息在陆地上）的爬行动物，但能直立行走，支配全球陆地生态系统超过一亿六千万年之久。 500 million years to 6595 million years ago, to support the body's upright hind legs, is a kind of terrestrial species of Mesozoic diversification of the advantages of vertebrates, most belong to terrestrial (perched on land) reptile, but can walk upright, dominate global terrestrial ecosystems more than 160 millions of years. 说是脊椎动物而不说是爬行动物的原因是，恐龙曾经被归为爬行动物，但是其不符合爬行动物的基本特征之一：匍匐的行走方式，以及现在一直被质疑的冷血动物一说。 Say vertebrates and not saying of reptiles reason is that dinosaurs to be categorized as reptiles, but it does not conform to the reptile one of the basic characteristics: prostrate walking style, and now has been questioned the cold-blooded animal said.
爱吃肉的饭团
恐龙简介恐龙是出现于二亿四千五百万年前，并繁荣于六千五百万年前结束的中生代爬行动物。或为恐龙和与它同一时代的蛇颈龙、翼龙等的模糊总称。恐龙在在6500万年前白垩纪结束的时候突然全部消失，成为地球生物进化史上的一个谜，这个谜至今仍无人能解。地球过去的生物，均被记录在化石之中。中生代的地层中，即曾发现许多恐龙的化石。其中可以见到大量或呈现各式各样形状的骨骼。但是，在紧接着的新生代地层中，却完全看不到恐龙的化石。由此推知恐龙在中生代时一起灭绝了。恐龙种类多，体形和习性相差也大。其中个子大的，可以有几十头大象加起来那么大；小的，却跟一只鸡差不多。就食性来说，有温顺的 草食者和凶暴的肉食者，还有荤素都吃的杂食性恐龙。Dinosaur ProfileDinosaurs appeared in two hundred forty-five million years ago, and prosperity at the end of the Mesozoic reptiles 65 million years ago. , Or dinosaurs, and with it the same era plesiosaurs, pterosaurs and other fuzzy generic term. Dinosaurs in the Cretaceous period ended 65 million years ago when all of a sudden disappeared, a mystery of the evolutionary history of life on Earth, is still without a person who can answer this mystery. Creatures of the Earth in the past, are being recorded in the fossil. Mesozoic strata, that many dinosaur fossils have been found. Where you can see the bones of large or presents a wide range of shapes. However, in the following Cenozoic strata, but completely see less than the fossils of dinosaurs. We concluded that with the extinction of the dinosaurs in the Mesozoic.Many kinds of dinosaurs, body shape and habits also big difference. Large sub then dozens of elephants together; small, but with almost a chicken. Docile herbivorous, feeding habits,The meat eaters and violent, as well as meat and vegetables to eat omnivorous dinosaur.
甜蜜到腻
恐龙的英文介绍是：
1、英文介绍：
Dinosaur refers to the recent common ancestor and all descendants of Triceratops, modern birds and Lianglong. For the convenience of research, dinosaurs can be divided into birds and non birds dinosaurs.
Among them, non bird dinosaurs only lived in the Mesozoic and became extinct 65 million years ago. This entry mainly introduces non bird dinosaurs.
Vigorous limbs, long tail and huge body are the portrayal of some non bird dinosaurs. They mainly inhabit in the forest or open areas of the lake shore plain.
2、中文翻译：
恐龙，是指三角龙，现代鸟类和梁龙最近的共同祖先及其所有后代。为方便研究，恐龙可分为鸟类和非鸟恐龙。其中，非鸟恐龙只生活在中生代，已于6500万年前全部灭绝。
而本词条主要介绍非鸟恐龙。矫健的四肢、长长的尾巴和庞大的身躯是部分非鸟恐龙的写照。它们主要栖息于湖岸平原的森林地或开阔地带。
外形特征：
大部分的恐龙要比大型蜥脚类恐龙还小得多。现有的证据表明，恐龙的平均大小在三叠纪、早侏罗纪、晚侏罗纪和白垩纪都不断变化。
大部分兽脚类恐龙的体重在100到1000公斤之间，而全新世的掠食性肉食动物则多半在10到100公斤之间。恐龙的体重估计值，大多介于1到10吨之间。伦敦国立自然历史博物馆的一个研究指出恐龙的体重平均值约在100公斤左右，而新生代的哺乳类体重平均值多在2到5公斤之间。
以上内容参考 百度百科—恐龙
zhuliangli
The DinosauriaDinosaurs, one of the most successful groups of animals (in terms of longevity) that have ever lived, evolved into many diverse sizes and shapes, with many equally diverse modes of living. The term "Dinosauria" was invented by Sir Richard Owen in 1842 to describe these "fearfully great reptiles," specifically Megalosaurus, Iguanodon, and Hylaeosaurus, the only three dinosaurs known at the time. The creatures that we normally think of as dinosaurs lived during the Mesozoic Era, from late in the Triassic period (about 225 million years ago) until the end of the Cretaceous (about 65 million years ago). But we now know that they actually live on today as the birds.
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