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Why is Precambrian history more difficult to study than more recent geological history?
no fossils of organisms with hard parts. the few soft body part fossils found rarely fossilize well.
Why is the precambrian time period segmented into very few parts because?
The Precambrian time period is segmented into very few parts because the fossil record is scarce.
Why did James Hutton and others infer that earth had to be much older than a few thousand years?
The reason James Hutton and others inferred that earth had to be much older than a few thousand years was because of all the fossils that were found.
Why fossils are rarely found in metamorphic and igneous rocks?
This is because igneous and metamorphic rocks are created under extreme heat and pressure, and very few fossils would survive those conditions. The most common forms of fossils are those found in sedimentary rocks.
What is the main reason that earths fossil record is incomplete?
New fossils are developing all the time and soon we will be fossils too. Plus the fact that there were billions of species that died out and aren't even fully fossilized yet because it was barely a few thousand years since they were neatly wiped off the face of the Earth. Some fossils are buried too far deep underground for us to uncover now. Also the fact is it takes sedimentary Rock to fossilize organisms and to tell you the truth, that crap can't just be bought at home depot.
Why is Precambrian history more difficult to study than more recent geological history?
no fossils of organisms with hard parts. the few soft body part fossils found rarely fossilize well.
Why are there few fossils from the precambrian era?
Actually, it isn't really true! We now know (unlike Darwin who would have rejoiced to know what we now know!) that fossils in the PreCambrian are numerous and spread world-wide. But many are very small and not easily recognised or exist in specialised geologically circumstance, often preserved in relatively little-known places. Much PreCambrian rock is igneous, products of vulcanism, and obviously do not preserve fossils. But where suitable conditions prevailed, unusual fossils can be found are a the subject of a great deal of study. Many of the best preserved are where fine volcanic ash settled over the ancient seabed preserving the soft-bodied forms which were around 500-600ma ago. Precambrian fossils may be found at several localities in UK (notably Charnwood Forest in Leicestershire), in Canada, Namibia, Russia, China and especially in Australia.
The longest era with the least information available?
The Precambrian Era is the longest era with the least amount of scientific information available. This is because so few fossils have been discovered.
Why is the Precambrian time period segmented into very few parts?
The Precambrian time period is segmented into very few parts because:
Why is the precambrian time period segmented into very few parts because?
The Precambrian time period is segmented into very few parts because the fossil record is scarce.
Which parts of North America have NOT been added to the continent since the Precambrian?
a few.
How long did the PreCambrian era last?
The Precambrian Era. The name means: "before the Cambrian period." This old, but still common term was originally used to refer to the whole period of earth's history before the formation of the oldest rocks with recognizable fossils in them. In the last few decades, however, geologists have found that there are some hard-to-discern fossils in some Precambrian rocks, so this period is now also known as the Cryptozoic or "obscure life" Eon (from the words "crypt" = "hidden," and "zoon" = "life"). The Precambrian covers almost 90% of the entire history of the Earth. It has been divided into three eras: the Hadean, the Archean and the Proterozoic. Source: Unknown The Precambrian Era comprises all of geologic time prior to 600 million years ago. The Precambrian was originally defined as the era that predated the emergence of life in the Cambrian Period. It is now known, however, that life on Earth began by the early Archean and that fossilized organisms became more and more abundant throughout Precambrian time. The two major subdivisions of the last part of the Precambrian are the Archean (oldest) and the Proterozoic. Rocks younger than 600 Ma are considered part of the Phanerozoic.
How many fossils are there in emerald?
A few
Why were so few fossils found from the precambrian period?
There are many fossils from the Pre-Cambrian but most are microscopic, single celled organisms. Later life forms became larger but were soft bodied which did not fossilise except under certain conditions.
Why are there so few frog fossils?
The reason frog fossils are hard to come by is because of the softness of their bones.When the earth, soil and rocks move underground, their bones are easily destroyed. Which means fossils cannot form as easily.But saying that, one of the most famous fossils ever recovered is one of a frog, as you can see its facial features, which is rare for a fossil in general, let alone a frog fossil. More about that on the national Geographic website (click here).
Why did James Hutton and others infer that earth had to be much older than a few thousand years?
The reason James Hutton and others inferred that earth had to be much older than a few thousand years was because of all the fossils that were found.
Why are there few fossils of certain groups of protist?
because they're old
