The Fossil RecordOf, SurveyInsects, SocialFossil, I N T H EBurnham, B Y Laurie
As we think about the fossil record, we want to be clear that the fossil record needs to be interpreted. And that's because we're going to say the fossil record is biased. And by that, we just mean that certain organisms are more or less likely to be represented in that fossil recor...
In contrast, the fossil record is a very serendipitous sample of past life, and it is extremely unlikely, indeed virtually impossible, that the fossil record would sample the initial appearance of a distinct clade with a precise date. Rather, fossil divergences should appear after the real ...
The preservation of embryos and juveniles is a rare occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers (食腐动物) weathering before they can be fossilized. Ichthyosaurs (鱼龙) had a higher chance of being preserved than did terrestrial creatures ...
Is the fossil record adequate?doi:10.1038/nature28134Andrew SmithNatureSmith, A.B. (ed.) 1998. Is the fossil record adequate?
Every so often in the fossil record, large numbers of plants and animals disappear abruptly.Such mass extinctions were usually the result of massive volcanic eruptions, ice ages, asteroid impacts or other sudden environmental changes.3. The underlined word“abruptly” probably means? A. probably B...
Global diversity patterns in the fossil record comprise a mosaic of regional trends, underpinned by spatially non-random drivers and distorted by variation in sampling intensity through time and across space. Sampling-corrected diversity estimates from s
the fossil record托福综合写作 the fossil record托福综合写作 The fossil record shows that members of the group of dinosaurs known as lambeosaurs had large bony crests on top of their heads.The shape of the crests varied from species to species,but all lambeosaur crests contained extended hollow...
The preservation of embryos and juveniles is a () occurrence in the fossil record. A. scarce B. lack C. rare D. short 相关知识点: 试题来源: 解析 C scarce稀少的,不足的,指一般有用而又不足的东西,常用作表语;lack“缺乏的,缺少的,短缺的(of)”;rare“稀少的,稀薄的,极好的,珍奇的”,常用来...
Why is the fossil record incomplete?Fossil Record:The ground beneath our feet contains a hugely valuable record of the history of evolution on our planet. While the most popular fossils are the dinosaurs, all life in the past billion years can be cataloged and studied, from individual plant ...