All the knowledge about fossils

Fossils include trilobites, plants, shells, footprints, dinosaurs, fish and so on.

Fossil preservation conditions: organic matter has hard parts, and organisms must be avoided from being destroyed after death, and organisms must be quickly buried by things that can hinder decomposition. Fossil preservation types: solid fossils, die-casting fossils, trace fossils and chemical fossils.

In the long geological age, countless creatures lived on the earth, and many of their dead bodies or traces left by life were buried by the sediment at that time. In the following years, the organic matter in these biological remains was completely decomposed, and the hard parts such as shells, bones, branches and leaves were petrified into stones together with the surrounding sediments, but their original shapes and structures (even some subtle internal structures) still existed.