atheir study is exceedingly time consuming—some workers have focused 他们的研究是非常为[translate] athe Proterozoic, where the fossil record is now well enough known[translate] ahowever, the fossil record is still largely a mystery. To avoid mistakes,[translate]...
F. Of course, the fossil record is undeniably patchy. Some places and times have left behind more fossil-filled rocks than others. Some have been sampled more thoroughly. And certain kinds of creatures—those with hard parts that lived in oceans, for example–are more likely to leave a reco...
The major task for the Bradshaw Foundation is to promote the discovery, documentation and preservation of rock art around the world, but reference to the fossil record is important because in the realms of archaeology and palaeoanthropology, research reveals many traits of culture in the hominin ...
Fossils, the preserved evidence of past organisms, are crucial for understanding Earth's history. They can be categorized into four types: those in sedimentary rock, amber, trace fossils, and those found in ice or bogs. The fossil record is biased, favoring organisms from sediment-rich habitats...
Consider also that the generally orderly distribution of fossils in the fossil record is also somewhat problematic for those who hold that the geologic column and fossil record developed over many hundreds of millions of years. It seems like the fossil record is simply too neatly sorted. Creatures...
The fossil record is our only empirical sample of past biodiversity, providing a critical resource for understanding macroevolutionary and macroecological processes in deep time1. Numerous abiotic and biological drivers have been proposed to explain apparent patterns of fossil diversity2, but it has lon...
The unique aspect of the fossil record is that it establishes a temporal framework for evolution. It provides a crude dating for individual events, such as the first appearance of particular taxonomic groups or particular anatomical features. It also provides evidence for the patterns and rates of...
But such gloominess is misplaced. The fossil record shows that many species have endured for millions of years—so why shouldn’t we? Take a broader look at our species’ place in the universe, and it becomes clear that we have an excellent chance of surviving for tens, if not hundreds,...
resolution of the fossil record has to be suited to the particular speciation process one is interested in observing, in order for sound inferences to be made.Keywords:punctuated equilibrium;temporal resolution;morphology;rates of speciation;modes of speciation;stasis;species concepts;fossilisation;...
vegetation changes during the past 40,000 years in central china from a long fossil record:近40000年来中部地区植被变化的历史记录 热度: Lesson 73 The record-holder.ppt 热度: Ouspensky, The Fourth Way - A Record of Talks and Answers to Questions based on the Teaching of G.I. Gurdjieff ...