Fossil formed when an outline of the original organism is formed from left-over carbon

Carbon films or carbonaceous fossils are the fossils that are formed when an outline of the original organism is formed from left-over carbon. This usually happens when the oxygen, nitrogen and hydrogen from an organism become exhausted. This leaves just a layer of carbon on the organism which forms a thin layer. This process is known as distillation or carbonation. These fossils can be found in any rocks when organic material becomes compressed.

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