| 词汇 | fossil-record |
| 释义 | fossil record noun[ C or S ] uk /ˌfɒs.əl ˈrek.ɔːd/ us /ˌfɑː.səl ˈrek.ɚd/ the fossils in a particular group of rocks that give information about how and when those rocks formed, or the set of all fossils together that can be used to tell the history of the earth化石记录 Palaeontology & fossils ammonite ammonoid biozone carbon dating fossil fossilization fossilize fossilized index fossil microfossil missing link palaeontologist palaeontology petrifaction petrify radiocarbon dating unfossiliferous Our only reason for supposing the evolution of life, made plain by fossil records, to have taken place very slowly is that geologists have stated that the deposition of the strata took place very slowly. This fossil record has given us our best knowledge of the course by which the present living world has been brought into its existing condition. fossil record | American Dictionaryfossil record noun[ C/U ] us/ˈfɑs·əl ˌrek·ərd/ earth science the fossils in a particular group of rocks that give information about how and when those rocks formed earth science The fossil record is also the set of all fossils together that can be used to tell the history of the earth. Examples of fossil recordfossil record Biases in the fossilrecord can be due to features or mechanisms predating or postdating the collecting or during the collection process itself. Nobody is pretending from this latter perspective that the fossilrecord is perfect, but it is argued it is good enough to derive a history. However, despite the abundance of sequence data from genomes of organisms, molecular time estimates rely on accurate calibrations, usually from the fossilrecord. This is unlikely to be available, as there is not likely a fossilrecord of pain faces. But there are other data from the fossilrecord, which are surely relevant to the evolution of a less narrowly defined object of study. The fossilrecord also reveals that anatomical changes that broadened and shortened the pelvis and reshaped the birth canal began occurring well before this exodus. The passage times through an arm are simple multiples of published results on impact and fossilrecord periodicity and galactic plane half-periods. The latter have a chitinous exoskeleton like insects and are often associated with them in the fossilrecord. This is consistent with rare examples of soft tissue evidence from the body fossilrecord. As a corollary, the fossilrecord was implicitly and rhetorically (though not practically) substituted with the molecular record. As with vegetative tissue, it is not possible to assess the desiccation response of early seeds from the fossilrecord. In contrast, the terrestrial fossilrecord is sparse and incomplete. How far back in time can the fossilrecord of eukaryotes be extended? Their analysis provides the mathematical foundation necessary for understanding the data of the fossilrecord. Taeniosomus lampridiforms are poorly represented in the fossilrecord. See all examples of fossil record These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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