Write any two method for identification of fossils?

Fossil identification can be a challenging proposition. Often a small detail is all that seperates one species from another. Still overall classification system is not so difficult to understand.
Fossils of animals are classified, as are living specimens, by observing the body structures and functions. While there are a few unique challenges in classifying fossils, the basic scheme of organization is the same. Going one step at a time can make fossil identification possible for anyone.