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由于爬行动物非常繁盛,地球历史上的中生代被称为“爬行动物时代”。在此期间,爬行动物的辐射演化异常剧烈,不但产生了种类繁多、形态各异的陆生恐龙类,占据淡水湖泊的水生爬行离龙类、鳄类、龟鳖类,以及栖息于海洋的鱼龙、蛇颈龙及沧
As the reptiles are very prosperous, Mesozoic Earth’s history is known as the “reptile era.” During this period, the evolution of the reptiles was extremely violent, not only produced a variety of different forms of terrestrial dinosaurs, aquatic reptiles occupied freshwater lakes dragon, crocodile, turtles and fish living in the oceans Dragon, Plesiosaurus and Cang