Fossilization (noun)

1. The process of turning organic matter into fossils.
2. The state of being turned into a fossil.

Origin:

From the 16th century, from fossil + -ization.

Examples:

1. The fossilization process can take millions of years.
2. The discovery of the fossilized remains of the extinct species was a significant find for the paleontologist.
3. The fossilization of the plant was so well preserved that scientists were able to study the ancient organisms in great detail.
4. The amber preserved the insects so well that it was almost like a time capsule of the past, showing the insects in their original state of fossilization.
5. The fossilization of the dinosaur bones made them harder than rock, but still fragile and vulnerable to erosion.