as old as you want.
Fossils from the Silurian Period are between 443.7 and 416 million years old.
Fossils have been found with ages from a few tens of thousands of years old to roughly three billion years old.
The oldest known fossils are up to 3.5 billion years old.
Up to 35,000 years old.
Armour,Skull,Helix,Dome,Old Amber and Root Fossils.
The oldest fossils found are considered to be from the late Archean period which ended 2500 million years ago. By contrast, the Earth is believed to be 4500 million years old. So, though both dates are amazingly old, the Earth is definitely older than the fossils.
550 million years old
Africa
50000000
The state of Virginia has a spectacular array of fossils, from 540 million year old burrows to one million year old Mastodon teeth. Most fossils are found in the Piedmont Province and Blue Ridge.
Paleontologists.
Fossils are used to show changes because they are permanent. These fossils are also old and show evolutionary changes in species alive today.