from what i know I'd say the oldest fossil is Dimetrodon,a giant carnivorous lizard with a sail on it's back. PROBABLY an ancestor of the gecko (gecko's don't have sails on there backs)
Stromatolites.
The oldest known fossils are prokaryotic. These fossils, dating back over 3.5 billion years, are believed to be ancient bacteria and archaea. Eukaryotic cells are thought to have evolved later.
The fossils of the oldest life forms can be found in the Precambrian period of the fossil record.
The oldest humanoid fossils were all found in Africa.
The oldest fossils are significant because they provide clues about the earliest forms of life on Earth, helping scientists understand the evolution and diversity of life over billions of years. These fossils offer insights into the conditions of the ancient Earth and the processes that shaped life as we know it today.
The oldest micro fossils are comprised of carbon. This is because they have been in the ground a very long time and it compresses the materials into carbon.
The oldest known fossils are up to 3.5 billion years old.
Africa
The 4th layer of soil >.<
3.5 billion years
a dinosaurs tooth
fish with no jaw........novanet