Fossils are the preserved remains of plants and animals. Fossils are usually found in the earth’s crust in either a frozen form, petrified form, or trapped in a substance like tar or amber. An example of fossils are the bones of dinosaurs that have gone extinct after a massive meteorite impacted the earth at the end of the cretaceous period Mary Anning Free Fossil Discoveries Essays and Papers. Page 1 of 50 - About essays. Satisfactory Essays. Fossil Discoveries in Kansas. Words; 3 Pages; 4 Works Cited; Fossil Discoveries in Kansas. Fossil Discoveries in Kansas Did you know, in the state of Oklahoma it is against the law to either hunt or catch whales? Sounds sort of ridiculous when
Essay on Fossils ( Words)
According to a lay man, fossil essay, a fossil is always thought to be the skeletal remains of a dinosaur or huge reptiles. The naturally preserved remains of any plant or animal that have lived millions of years ago i. in the prehistoric times are called as a Fossil. It can be said that a fossil of an animal is a solid proof that, that particular animal once lived in that region.
Fossils can be in the form of bones, imprint of a plant on a rock, shells, etc, fossil essay. The size of a fossil depends on the size of the animal to which it belongs to. There are 2 types of fossils which are named as Body fossils and Trace fossils, fossil essay. Body fossils consists of the remains of the whole organism or some body parts of the organism whereas trace fossils consist of footprints or tracks of the animal indicating that such type of an fossil essay existed.
The overall study of fossils i. comes under a comprehensive study called as Paleontology. Paleontologists are the people who study fossils to understand the different phases of evolution and to understand how the different species evolved. There are different steps required for a fossil to form, fossil essay. These steps are both lengthy as well as very sensitive to the pressure between the rocks and soil, environmental conditions, also the skin type of the animal, etc, fossil essay.
A proper or detailed fossil is formed in marshy environment where the soil is wet and consists of a lot of minerals. The first step of fossilization will always require a body to be buried into the soil at a certain depth.
This soil should be wet that is the soil present near a river bank or on a coastal land, fossil essay.
The fleshy portion of the body that is the muscle and all fossil essay soft tissue decays over a period of time. The remaining part that is the bones play an important part in fossilization. The sediment or the soil mud settles on the top of the bones of the animal and then forms a hard substance commonly known as a rock. Fossil essay bones which are covered by the soil particles also start decomposing which causes the minerals to seep in it.
These minerals then replace the organic material of the bones and then form a fossil. This formation solidifies over a period of time thus, gaining the shape of the bones, fossil essay. The minerals which replace the bones generally include silica, calcite or pyrite, etc.
This process is called petrification or permineralization. There are different types of fossil forming processes which vary according to the environmental factors. For example, sometimes, some bees or fossil essay get trapped in the sap of a tree. This sap then solidifies along with the organism inside it. This process of accidental solidification is also considered as fossilization, fossil essay.
In this type of process, the organism is preserved in such quality that its DNA can be extracted and species identification fossil essay be done.
Carbonization is another type of fossilization mostly common for plant fossils. When a plant is buried in the soil it is covered with a lot of soil. This plant does not survive and under the excess pressure of the rock the plant gets compressed drastically. It can get compressed to less than one hundredth of its original size. This leads to formation of coal which is very valuable fossil and takes thousands of years to form the good quality coal natural resource.
Another type of fossil forming process involves a mold fossil or cast formation. In this type, an impression is formed on the rock when the organism undergoes decomposition. This mold is then later filled with minerals forming a cast. Once a fossil is discovered, fossil essay, a question about its age arises.
This is done when we have a database of different already discovered fossils. The newly found fossil is then fossil essay with the different categories which are made according to the type of rock, fossil essay, size, etc, fossil essay. Another type of dating technique involves calculating the age of the radioactive minerals present in the fossil rock, fossil essay. This is much more precise than the comparison method. This technique is called as the Radiometric Method.
Linnaeus and Darwin were the two well-known naturalists who wanted to name all the species which were present on the Earth at that time as well as those which had become extinct. They utilized the evidence of fossils to study the evolution and also to characterize each species fossil essay the basis of its genetic hierarchy.
Ever heard about connecting links?? These are a diverse class of animals which are very important to understand how animals evolved. We all know that life originated from organisms present in the aquatic environment. We also know that fish have originated before other classes of animals.
Due to evolution of the science and technological world, fossil essay, now we know that amphibians evolved from fish, fossil essay, reptiles evolved from amphibians, birds evolved from reptiles, etc. but have you ever thought how was this estimation done?? The answer is a connecting link. A connecting link is an animal having intermediate characteristics of two species of animals. The study of connecting links can be done by studying fossils.
For example, there is a fish called as a lung fish. This lung fish consists of intermediate characteristics between fish and amphibians. The lung fish fossil essay a distinguishing factor of having both gills and lungs for the purpose of respiration.
This explains that the amphibians might have developed from the fishes, fossil essay. Another example is of an Fossil essay. This animal has wings like birds and claws like reptiles thus, fossil essay, forming a connecting link. This is also a very good example of how animals might have evolved in a series like fish, fossil essay, amphibians, reptiles and then birds, fossil essay. The human evolution is also better understood with the help of different fossils.
The fossils found in different parts of the world were compared and it was found that they were not same. The role-played by fossils to study the process of evolution and also different connecting links which tell us what animal evolved from which animal is important and unique in its own way.
All we need is a genuine interest to understand the ancestors of all the present-day animals and proper equipment along with a fossil of fossil essay to go back into the prehistoric times.
About Manasi Shewale Manasi Shewale loves to read novels and review them inturn. She is an avid reader of various topics of scientific interest in Chemistry and Biology. Your email address will not be published. Skip to main content Skip to secondary menu Skip to primary sidebar Skip to footer HOME CONTACT US All Essays JEE Main Manasi Shewale loves to read novels and fossil essay them inturn.
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Essay on Fossil Fuels Words | 9 Pages Introduction Fossil Fuels are the most important energy sources in our world today. The overwhelming majority of the huge amount of energy used in the world comes from the burning of three major fossil fuels: coal, petroleum, and natural gas Feb 14, · Essay on Fossils. The naturally preserved remains of any plant or animal that have lived millions of years ago i.e. in the prehistoric times are called as a Fossil. It can be said that a fossil of an animal is a solid proof that, that particular animal once lived in that blogger.comted Reading Time: 6 mins Nowadays the fossil fuel is one of the most important resources in the earth, but its importance generates many problems to the planet. Fossil fuel is one of principal resource in the earth this resource consists in high levels of carbon and includes natural gas, petroleum, and coal. These elements are important to countries because, with them, the countries can create energy, materials, and others
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