The fossil is the accumulation of dead organisms or traces of organisms in the living earth. Primitive age. This is a record of historical evidence and geology of when animals and plants mentioned that fell down and over time. The fragile and weak of the body will decay, decomposing, will have the solid part of the body, such as bone, shell or shell, etc. These remains are preserved as fossils, with two processes: precipitation over reclamation, onto the carcass. And the solution of minerals to replace dead fast. The bacteria can"t grow. When curing becomes a fossil. Most of the remains of organisms are preserved well in the river, lake, and sea. Because that area with sediment granule accumulation. The environment relatively calm remains are destroyed, broken. When the fossil was preserved in the rock was eroded by the when decay, such as water, the wind, or the rain will appear naturally. In addition, when the earthquake. Or the movements of the earth"s crust various styles to make rock tilt pour and sometimes rocks, the upper being washed away. The fossils that appear to see clearly.