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Sea dragons : diapsid reptiles of the prehistoric oceans
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Sea dragons : diapsid reptiles of the prehistoric oceans
水中蛟龍 : 史前水棲爬行動物
Language:  Chinese,Latin name
Author:  Cheng Yannian
Pub. Date:  2009-01 Weight:   kg ISBN:  9789860216769
Format:  Hardcover Pages:  210 pages
Subject:  Paleontology > Vertebrate
Series:   Size:  
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本書介紹中生代的水棲爬行動物,包括鱷類、蜥鰭類、魚龍類、海龍類及滄龍類五大類群。它們是生活在遠古海洋或湖泊河流環境中的脊椎動物,其中絕大多數都已先後從地球上消失,僅留下化石,只有鱷類等極少數種屬殘存下來活到今天。脊椎動物主要經歷了從水生到陸生而後到空中的演化過程。爬行動物是首先完全能在陸地上生活的脊椎動物。而本書中所?述的各類水中蛟龍,都是由陸地生活的不同種類的爬行動物重新回到水中生活後演化來的,是當時陸上殘酷的生存競爭,令這些水生「龍們」的祖先遠離「紛爭的塵世」,開闢蹊徑重新來適應水生環境的。它們大多出現於中生代,並且銷聲匿跡於中生代結束之時。在中生代海洋環境中,它們根據各自的形態特徵,佔據著不同的生態環境,主宰著沿海、近海、淺海、深海和遠洋的不同棲境。






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