关于恐龙的资料,要英语的!谢谢!

恐龙dinosaur
Any of various extinct, often gigantic, carnivorous or herbivorous reptiles of the orders Saurischia and Ornithischia that were chiefly terrestrial and existed during the Mesozoic era.
恐龙：一种主要生活在中生代时期的陆栖动物，是庞大的食肉或食草爬行类动物，属龙盘目与鸟盘目，已绝种

The word "dinosaur" comes from the ancient Greek words "deinos" ("terrible") and "sauros" ("lizard"). Strictly speaking, dinosaurs refer to land dwelling creatures that dominated life on earth during the Mesozoic Era (225 million to 65 million years ago). They lived alongside with marine reptiles (such as ichthyosaurs, mosasaurs, plesiosaurs) and flying reptiles. As a group, dinosaurs existed for over 150 million years, occupying every type of environment and climate on Earth. They ranged in size from those as small as a chicken to others over 100 feet long and weighing nearly 100 tons. Dinosaurs did not achieve their great size or domination overnight - they evolved alongsid