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          1. 科學家在緬甸發現一塊化石鳥琥珀
            文章來源:未知 文章作者:enread 發布時間:2020-02-11 01:46 字體: [ ]  進入論壇
            An international team led by a Chinese paleontologist in Myanmar discovered a large ancient bird from the Cretaceous period and preserved in amber1, the team announced on Monday.
            The amber fossil, which lived some 99 million years ago during the early stages of late Cretaceous period, was discovered in Hukawng Valley, Kachin, located in the northernmost state of Myanmar, according to a statement from team leader Xing Lida, a paleontologist with Beijing-based China University of Geosciences, sent to the Global Times on Monday.
            The fossilized bird was acquired by a Beijing-based amber collector in 2012 and handed over to Xing and his research team.
            The specimen2 is 5.3 centimeters long, weighs 79.5 grams. Some of the right wing bones had been preserved, the statement said.
            Based on the bone characteristics, Xing's team classified the bird in the enantiornithes group which populated the Cretaceous period and had teeth.
            The wing's skin and feathers were also preserved, which will help scientists restore the wing's colors and patterns. The statement also noted3 that the bird preserved in the amber has mainly deep brown colored feathers, some lighter4 stripes and spots, making it different from other specimens5 found in the same area.
            The most attractive feature is its size, as the longest feather is about 37 millimeters long.
            The specimen could have been 10 centimeters long from the back edges of its skull6 to the pubic bone, the statement said. This could further indicate the bird was a more mature entity7 compared with previous discoveries, or it could be a larger enantiornithes never before seen. 
            Either way, the amber discovery has expanded scientific knowledge on the size of ancient bird group in the region, the statement said.


            1 amber LzazBn     
            • Would you like an amber necklace for your birthday?你過生日想要一條琥珀項鏈嗎?
            • This is a piece of little amber stones.這是一塊小小的琥珀化石。
            2 specimen Xvtwm     
            • You'll need tweezers to hold up the specimen.你要用鑷子來夾這標本。
            • This specimen is richly variegated in colour.這件標本上有很多顏色。
            3 noted 5n4zXc     
            • The local hotel is noted for its good table.當地的那家酒店以餐食精美而著稱。
            • Jim is noted for arriving late for work.吉姆上班遲到出了名。
            4 lighter 5pPzPR     
            • The portrait was touched up so as to make it lighter.這張畫經過潤色,色調明朗了一些。
            • The lighter works off the car battery.引燃器利用汽車蓄電池打火。
            5 specimens 91fc365099a256001af897127174fcce     
            n.樣品( specimen的名詞復數 );范例;(化驗的)抽樣;某種類型的人
            • Astronauts have brought back specimens of rock from the moon. 宇航員從月球帶回了巖石標本。
            • The traveler brought back some specimens of the rocks from the mountains. 那位旅行者從山上帶回了一些巖石標本。 來自《簡明英漢詞典》
            6 skull CETyO     
            • The skull bones fuse between the ages of fifteen and twenty-five.頭骨在15至25歲之間長合。
            • He fell out of the window and cracked his skull.他從窗子摔了出去,跌裂了顱骨。
            7 entity vo8xl     
            • The country is no longer one political entity.這個國家不再是一個統一的政治實體了。
            • As a separate legal entity,the corporation must pay taxes.作為一個獨立的法律實體,公司必須納稅。
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            TAG標簽: bird fossil amber