fossil record


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fossil record

the remains of organisms, or traces of their existence (such as footprints), present in the rock strata and forming a history of the development of life from its origins on earth. The record is very largely incomplete due to the comparative rarity with which fossils are formed, but provides evidence of evolution having taken place, particularly where long series of a particular form, such as the horse, can be traced over an extended period of time.
References in periodicals archive ?
We know this, at least in part, through the fossil record of marine invertebrates left behind since the Cambrian period.
He could only suggest that, for reasons then unclear to him, the earliest record of animal life on Earth was not represented in the fossil record.
Fossil records from New Zealand, Japan, Europe and North America, all showed evidence of mass deforestation.
AFRICA OVERLOOKEDThe first is that while Africa is widely acknowledged as the birthplace of humankind, its incredibly varied fossil record is often overlooked.And secondly, how can the continent hope to produce world-class scientists in the future if students aren't learning about their own heritage.
But until now, the fossil record went back no further.
The cetacean fossil record is detailed in chapter 2, and it includes a brief history of exploration and some of the key early figures involved in studying whale fossils.
Examination of fossil records by scientists from the University of Bath determined that the asteroid's impact had been much more severe than previously thought.
"Our model provides an explanation for why the fossil record looks the way it does, with many Cambrian fossil groups on some continents but few on others," notes study coauthor Tim Raub, a lecturer at Scotland's University of St.
The team, including researchers from the Natural History Museum in London, quantified the anatomical and genetic differences between living animals, and established a timeframe over which those differences accumulated with the help of the fossil record and intricate mathematical models.
In many cases, that critique still holds true: Researchers have yet to discover fossils of a creature that fits in the gap between bats--which seem to appear suddenly in the fossil record about 54 million years ago--and their mammalian predecessors (SN: 5/14/2005, p.
Predator-prey interactions and their evolutionary consequences have been documented extensively in the fossil record (Dietl & Kelley 2001, Kelley et al.
From noticeably broad gaps in the fossil record (which Darwin himself commented on) to questions of extreme improbability with regard to genetic mutations (nearly all mutations are harmful, and most others are useless--a strike against the idea that drastic evolutionary changes could be brought about by mutations), Reclaiming Science From Darwinism dares to present the case against macroevolution on purely scientific grounds, not theological or spiritual grounds.