That last awnser sucked...There are 6 diffrent types they are: Trace, Petrified, Mold, Cast, Whole Animal (i.e a bug encased in amber) and Carbon...film or something.
This is the best means of preservation of ancient materials. It happens only rarely. The animal must be continually frozen from the time of death until discovery. That limits the possibilities to...
the places in which fossils can be formed in incorporated sediments and rocks in the bottom of the sea.this shows the formation of petroleum from rock sediments under the sea,because this decay is a...