1. The most suitable places for fossilisation are in seas and lakes where sedimentary deposits like sandstones and limestones are slowly accumulating.

2. Fossilisation does not preserve a dinosaur's muscles, but educated guesses about how they worked can be made by studying animals alive today, such as ostriches.

3. In such conditions, animal bones of any kind degrade very fast, and no fossilisation occurs.

4. Even so, very few of these perished in the exact physical and chemical conditions necessary for fossilisation.

5. Climate change studies are dependant on the understanding of how changes have occurred during the fossilisation process to the organo- mineral architecture.