中国发现一种新的长羽毛的恐龙化石
文章来源:未知 文章作者:enread 发布时间:2017-05-05 06:35 字体: [ ]  进入论坛
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A team of Chinese and Canadian researchers have discovered a new species of troodontid, a dinosaur1 species which had feathers.
 
一组来自中国和加拿大的研究人员发现了一种新恐龙,一种有羽毛的伤齿龙。
 
 
In a paper published in the respected journal Nature Communications, the palaeontologists describe the dinosaur as a giant chicken with teeth.
 
They also say they believe the species is far older than the specimen2 they found.
 
The fossil is of a new kind of troodontid dinosaur, Jianianhualong tengi genus et species nova, from the Lower Cretaceous period, between 146 and 100 million years ago.
 
It was found in the Yixian Formation of Baicai Gou, Yixian County, northeast China's western Liaoning province.
 
It measures about one metre (3.3ft) long and is well-preserved, and it’s believed it lived in a temperate3 environment.
 
The researchers say it had asymmetric4 tail feathers, which means it could have been able to fly, making it one of the earliest ancestors of birds.
 
The find is being seen being of great significance in reconstructing both the skeletal and internal evolution of troodontids, and bird-like dinosaurs5, or paravians, in general.


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1 dinosaur xuSxp     
n.恐龙
参考例句:
  • Are you trying to tell me that David was attacked by a dinosaur?你是想要告诉我大卫被一支恐龙所攻击?
  • He stared at the faithful miniature of the dinosaur.他凝视著精确的恐龙缩小模型。
2 specimen Xvtwm     
n.样本,标本
参考例句:
  • You'll need tweezers to hold up the specimen.你要用镊子来夹这标本。
  • This specimen is richly variegated in colour.这件标本上有很多颜色。
3 temperate tIhzd     
adj.温和的,温带的,自我克制的,不过分的
参考例句:
  • Asia extends across the frigid,temperate and tropical zones.亚洲地跨寒、温、热三带。
  • Great Britain has a temperate climate.英国气候温和。
4 asymmetric OOZyf     
a.不对称的
参考例句:
  • Most people's faces are asymmetric. 大多数人的脸不对称。
  • We have made no reference to asymmetric carbon atoms. 我们未曾涉及不对称碳原子。
5 dinosaurs 87f9c39b9e3f358174d58a584c2727b4     
n.恐龙( dinosaur的名词复数 );守旧落伍的人,过时落后的东西
参考例句:
  • The brontosaurus was one of the largest of all dinosaurs. 雷龙是所有恐龙中最大的一种。 来自《简明英汉词典》
  • Dinosaurs have been extinct for millions of years. 恐龙绝种已有几百万年了。 来自《简明英汉词典》
TAG标签: species dinosaur fossil
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