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Types of fossilization

Types of fossilization

Depending on how fossils are grasped they can come be differentiated into various forms. Fossils of forms of life which lived in specific geological ages, were widely distributed and were highly populated in addition to evolving at a fast rate represented specific geological ages. These fossils are called index fossils. Also, if forms of life which cover a long period of time and are sensitive to environmental change become fossils then it is possible to determine the environment it lived in. These fossils are called facies fossils. Also, depending on the size of the fossil they can also be categorized into microfossils. Macrofossils are evident to the naked eye and these are skeleton fossils or fossils of dinosaur footprints. Microfossils cannot be observed by the naked eye but with a microscope. These include diatomaceous, pollen and foraminifera fossils.

Also depending on which parts of forms of life are remaining these are categorized into body fossil, trace fossil and chemical fossil. Body fossils are forms of life with ashes remaining which get preserved into fossils. Trace fossils are fossils from forms of life which get their traces while living preserved and chemical fossils are forms of life which do not have ashes remaining but chemical elements which proof that the form of life once lived remains in the sediment.