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Submitted by on Apr 20, 2020

Paleontology is the science that studies fossils and the remains of the organism. Fossils are the things that preserve the remains, traces or impressions of animals or plants under the earth’s crust. In simple words, fossils are evidence of life forms from ancient times. Nearly ninety-nine percent of the species that have never existed on earth are extinct today. Their extinction took away our chance to look at these magnificent animals, but their extinction was like a blessing for other species. These species of animals and plants have grown and flourished, which would not have been possible otherwise due to the presence of certain monsters.

But thanks to the formation of fossils which allows us to imagine and visualize these wonderful and giant creatures of ancient times.

How Did the Fossils Form?

A series of events is responsible for the formation of the fossils and even if a single event is missed, we could not see the fossil. The fossil formation process is very rare and involves several fortunate and important stages.

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The first and most important thing in the process of fossil formation is death. The dying animal or plant must fall where sufficient water is present. This is due to the fact that the water acts as an insulator which isolates the remains of the element, otherwise it will decompose.

The second stage of fossil formation involves sedimentation. Over time, the exoskeleton is buried by sediment. Land and mudslides are perfect for this process; river deltas are also perfect for the rapid accumulation of sediment.

Sedimentation has a great influence on the quality of the fossil; Of course, the sediments do not allow more details to be shown while very fine-grained particles such as clay also help to show the smallest details.

The chemical presence also plays a very important role in the formation of fossils. The presence of iron is responsible for the reddish color of the fossils while phosphate darkens the appearance of the rock from gray to black.

The third step necessary for effective fossilization is known as permineralization. It is a process in which minerals are deposited in the internal casts of the organism, which makes it firm and solid. It is one of the best methods of conserving fossils by nature. As the pressurized sediment turns to rock and if the mineral-containing water percolates into the sediment, our ancient animal is very well preserved.

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