化石

• Tow factors are favorable for the preservation of organisms as fossils .
  有两个因素对生物化石的保存是有利的。
• The fauna in the joli fou consists of bivalves and arenaceous forams .
  乔里富组内的化石主要是双壳类和砂壳有孔虫。
• Sedimentary rocks are thus tagged by the fossils which they contain .
  沉积岩就这样以它们所含的化石作为鉴别的标记。
• Two others of these trilobite fossils have been found in the same area .
  在同一地区还发现了另外两块这些三叶虫化石。
• The answers may lie in a close reexamination of the fossil evidence .
  通过对化石证据的仔细反复的研究是可以得出答案的。
• He first searched for remains of early man in jehol, then in thailand .
  他先在热河省，后来又在泰国寻找早期人类的化石遗存。
• About 90 per cent of the energy used in the united states is derived from the fossil fuels .
  美国使用的能量，大约90来源于化石燃料。
• Dart christened the fossil australopithecus africanus, meaning the "southern african ape" .
  达特给化石命名为非洲南猿，意即“南非类人猿”。
• The age equivalence of fossils found in the sandstone and the shale is thus demonstrated .
  发现于砂岩和页岩中化石的等时性就这样得到证明了。
• Now and then he would turn over a likely-looking flint with the end of his ashplant .
  有时他停下来用木棍尖端翻过一块看上去像是化石的石头看看。