Furthermore , as all the world could see , within that four - pound rock from mars were microscopic rodlike objects that seemed to be the fossilized remains of extremely simple bacteria 世所共知,在那四磅重的隕石內(nèi)部有微小的條形物質(zhì),可能是極原始的細(xì)菌化石。
Seoul ( afp ) - the world ' s oldest fossilized webbed footprints of birds , believed to be 110 million years old , have been found on a south korean island 韓國科學(xué)家們最近在該國一個島嶼上找到了世界上最為古老的蹼狀鳥類足跡化石,據(jù)悉這些化石距今已有1 . 1億年之久。
In their place we found intriguing alternations of turquoise - blue , gray and green clays , brown sandstone and fossilized plant matter called lignite 我們發(fā)現(xiàn)取而代之的巖層組成十分有趣,其中包括了藍(lán)綠色、灰色、綠色的黏土、棕色的沙巖,以及稱做褐煤的植物化石。
Previous studies have looked at the movements of birds , the direct descendents of dinosaurs , and fossilized footprints to judge how tyrannosaurus rex would have moved 以往的研究都是去看恐龍的直接后裔鳥類的行動,還有化石腳印,從而判斷出霸王龍暴龍是如何行動。
The ecology of the sea and all water - life is of great concern to sam , as is the question of what will be left to become fossilized from the age we live in 對于山姆來說,海洋生態(tài)和所有的水生物都是重要的,例如山姆會擔(dān)心在我們生活的時代當(dāng)中會留給后世怎樣的化石。
The next year , during paleontological excavations , primitive stone tools came to light , bringing with them the tantalizing possibility that fossilized human remains might eventually follow 第二年,古生物學(xué)家在那里發(fā)掘出原始石器,讓人興起也許還能找到人類化石的希望。
Indeed , the jack hills zircons ? separated by perhaps thousands of kilometers from their source ? were found embedded in a fossilized gravel bar called the jack hills conglomerate 事實上,在杰克丘發(fā)現(xiàn)的鋯石,就是深埋在名為杰克丘礫巖的化石砂礫層里,而它們很可能是從幾千公里遠(yuǎn)的地方被帶到那里的。
Major support for this view comes from the apparent absence of any intact rocks older than four billion years ? and from the first fossilized signs of life , which are much younger still 支持上述論點的主要有兩項觀察與推斷:找不到40億年前就生成的完整巖石,而由化石得到最早的生命跡象,也比地球本身年輕許多。
Learner ' s inter - language fossilized some way short of target language competence while the internalized rule system contained rules that are different from those of the target language system 學(xué)習(xí)者的語際語在未到達目的語言能力時,就發(fā)生了僵化,此時其內(nèi)在化的規(guī)則體系與目的語語言體系所包含的規(guī)則不盡相同。
Millions of brutal years of burial and resurfacing , akin to repeated pressure cooking , permitted very few fossilized cells to survive in rocks accessible at the earth ' s surface today 在漫長且無情的時間之流中,它們被吞入地底又推升上來,就好像在壓力鍋內(nèi)反覆煎熬,使得今日地表的巖石中已很少留有成為化石的細(xì)胞了。