古老的有喙乌龟填补进化空白
文章来源:未知 文章作者:enread 发布时间:2018-08-23 08:44 字体: [ ]  进入论坛
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A fossilized skeleton of a turtle, dating back about 228 million years to the dawn of the dinosaur1 era, has been found in China, shedding new light on the earliest evolution of turtles.
 
一具可追溯到大约2.28亿年前恐龙时代开始之时的乌龟化石骨架在中国被发现,解释了最初的乌龟是怎么进化的。
 
 
This is the oldest turtle ever discovered with a toothless beak2. The turtle, more than 2 meters long, with a short trunk, had no shell on its back and abdomen3, said Li Chun, a researcher at the Institute of Vertebrate Paleontology and Paleoanthropology of the Chinese Academy of Sciences.
 
Found from the late Triassic deposits in Guanling County in southwest China's Guizhou Province, it has been named Eorhynchochelys, meaning "first turtle with a beak", and featured in the latest issue of the academic journal Nature.
 
"We are familiar with modern turtles, but the evolution of turtle remains4 one of the biggest mysteries in paleontology," said Li, the lead researcher.


点击收听单词发音收听单词发音  

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 beak 8y1zGA     
n.鸟嘴,茶壶嘴,钩形鼻
参考例句:
  • The bird had a worm in its beak.鸟儿嘴里叼着一条虫。
  • This bird employs its beak as a weapon.这种鸟用嘴作武器。
3 abdomen MfXym     
n.腹,下腹(胸部到腿部的部分)
参考例句:
  • How to know to there is ascarid inside abdomen?怎样知道肚子里面有蛔虫?
  • He was anxious about an off-and-on pain the abdomen.他因时隐时现的腹痛而焦虑。
4 remains 1kMzTy     
n.剩余物,残留物;遗体,遗迹
参考例句:
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
TAG标签: evolution beak turtle
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