中国科学家发现侏罗纪草本被子植物化石
文章来源:未知 文章作者:enread 发布时间:2016-03-09 06:29 字体: [ ]  进入论坛
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Paleobotanists have found fossils of perhaps world's earliest herbaceous angiosperm plant from the mid-Jurassic period (more than 164 million years ago) in north China's Inner Mongolia.

中国古植物学家在内蒙古发现了可能是世界上最早的中侏罗纪时期(1.64亿多年前)草本被子植物化石。
 
The finding was published on the latest English edition of Acta Geologica Sinica, an academic journal owned by the Geological Society of China.
 
The plant -- Juraherba bodae -- was found near in the southeast corner of Inner Mongolia by Professor Han Gang of the palaeontological center of Bohai University in Liaoning Province.
 
Less than four centimeters tall, the fossil has root, stem, leaves and fruit well preserved. "The occurrence of fructifications implies that the plant is already mature," Han said. "The small size of this mature plant indicates that Juraherba is a herbaceous seed plant, most likely an angiosperm. The seeds enclosed in the fructifications further confirm angiospermous affinity3." 
 
It could be the earliest record of herbaceous seed plants as well as of herbaceous angiosperms. "Most Western botanists2 believe that angiosperms originated from the early Cretaceous period (about 125 million years ago), but the discovery of Juraherba bodae moves that date back 40 million years," Han said. 
 
Botanist1 Li Bingtao described the finding as a "great discovery."


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1 botanist kRTyL     
n.植物学家
参考例句:
  • The botanist introduced a new species of plant to the region.那位植物学家向该地区引入了一种新植物。
  • I had never talked with a botanist before,and I found him fascinating.我从没有接触过植物学那一类的学者,我觉得他说话极有吸引力。
2 botanists 22548cbfc651e84a87843ff3505735d9     
n.植物学家,研究植物的人( botanist的名词复数 )
参考例句:
  • Botanists had some difficulty categorizing the newly found plant. 植物学家们不大容易确定这种新发现的植物的种类。 来自辞典例句
  • Botanists refer this flower to the rose family. 植物学家将这花归入蔷薇科。 来自辞典例句
3 affinity affinity     
n.亲和力,密切关系
参考例句:
  • I felt a great affinity with the people of the Highlands.我被苏格兰高地人民深深地吸引。
  • It's important that you share an affinity with your husband.和丈夫有共同的爱好是十分重要的。
TAG标签: fossils plant seeds
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