Palaeontological evidence, Science

Assignment Help:

Palaeontological Evidence:

Palaeontology  is a branch of  earth sciences, which is essentially a study of plant and animal life in the past geological periods, millions of years ago. It deals with  the successive plants and animals which have inhabited the earth since the earliest times, Evidence of  their existence is left in the form of  skeletons and bones buried in the rocks. These are known as fossils. Crucial evidence of  human evolution is provided by the study of  these fossils. 

Sometimes,  the buried body and the skeleton of  an animal disintegrate  entirely. If the surrounding material is sufficiently firm, a cavity may remain, having the exact outlines of the structures that disappeared. Such a cavity is called mold, Similar to molds are the impressions. These are left by extinct objects or parts of  the body upon the surrounding  material. The impression is made while the surrounding material is soft, like footprints in clay or lava.  Footprints of extinct animals are also impressions affording  valuable information about the animals that made them. 

It  is important to mention here, that early human fossils that have been found are generally fragmentary and incomplete. This is because only during the last 50,000 years or so, man started burying his dead. These later fossils are better preserved and, therefore, give us more information. For the earlier period, parts of bones are often the basis of imagining the re-construction of  the whole skeleton. The finding of fossils deposits  is both a matter of chance and of  deliberate excavation in certain regions of the earth.  


Related Discussions:- Palaeontological evidence

Law of the sea convention in respect to fishing, Question: The Law of t...

Question: The Law of the Sea Convention came into force in 1994. Art.56(1)provides the coastal state with sovereign rights for the purpose of exploring and exploiting, conservi

Explain modulating process of ageing, Explain Modulating Process of Ageing ...

Explain Modulating Process of Ageing Despite various researches, ageing becomes an inevitable process. The only option is to have good control measures. These are highlighted h

Dietary requirement during fever and infection, Dietary Requirement during ...

Dietary Requirement during Fever and Infection: During fever, there is a break down of tissue proteins, and water and salts are  lost. The BMR increases with the rise of ever

Microbes, advantages and disadvantages of proroza

advantages and disadvantages of proroza

Define the uses of buffer method, Define the uses of buffer method The ...

Define the uses of buffer method The buffer method of Shoemaker and coworkers for determining lime requirement is being widely used in India. In this method 5g of soil is added

Space, Will we ever go beyond The Milky Way?

Will we ever go beyond The Milky Way?

Experiment to make soap, How to make soap Soap can be made from waste f...

How to make soap Soap can be made from waste fat. Secure some waste fats and melt in a dish. Strain the fat by several layers of cloth. Weigh the fat and then weigh out about o

Nervous tissue, types of neuron according to function

types of neuron according to function

Which type of rock is critical for the formation of geysers, Which type of ...

Which type of rock is critical for the formation of geysers? Liquid rock is required for geysers to type in the form of what is known as magma - which is the geological name fo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd