副栉龙(属名:Parasaurolophus),又名副龙栉龙,意为“几乎有冠饰的蜥蜴”,是鸭嘴龙科的一属,生存于晚白垩纪的北美洲,约7,600万年到7,300万年前。目前已有三个被承认种:模式种沃克氏副栉龙(P. walkeri)、P. tubicen、以及短冠饰的P. cyrtocristatus。副栉龙的化石发现于亚伯达省、新墨西哥州、犹他州。副栉龙是种草食性恐龙,可以二足或四足方式行走。
副栉龙的冠饰可能由于蛋白质而富于颜色,但它还有另一个用处,那就是音频部件。
The crest of Parasaurolophus would likely have been brightly colored by these proteins, but it had another use too... as an audio component.
用CT扫描副栉龙的冠饰,我们会发现这种动物会发出低频音,可以传向浓密的丛林深处。
CT scans of Parasaurolophus' crest reveals the animal likely trumpeted low-frequency sounds that traveled well within a dense forest environment.
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