Fossils are the preserved remains or traces of animals plants and other organisms from the remote past.
There are different type of fossils:
TRACE FOSSILS: are the remains of trackways, burrows, bioerosion, eggs and eggshells, nests, droppings and other types of impressions.
RESSIN FOSSILS: is a natural polymer found in many types of strata throughout the world, even the artic. PSEUDOFOSSILS: are visual patterns in rocks that are produced by naturally occurring geologic processes rather than biologic processes.
LIVING FOSSILS: is an informal term used for any living species that is apparently identical or closely resembles a species previously known only from fossils that is, it is as if the ancient fossil had “come to life.”