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.
They were named using Latin root words, Primary, Secondary, Tertiary and Quaternary.
However, by itself a fossil has little meaning unless it is placed within some context.
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.
Since that time the system for naming the periods has been constantly changing.
As more information is collected, analyzed, and debated, the divisions created for looking at geologic time changes.