This animation shows the fossilization by permineralization of a living organism (the example used is a trilobite). The time scale is consistent with the dimensions of the principle stages in the transformation of a fossil to rock.
Decomposition of organic (soft) parts
Burial of the carapace (exoskeleton) by sediments
Permineralization of the exoskeleton
Erosion bringing the buried fossil to the surface
To illustrate the basic processes involved in the fossilization process.
To become aware of the vastness of the Geological Time Scale.