How old are the oldest fossils?

Related questions

1. What did the T Rex evolve from?
2. Are Raptors smarter than dolphins?
3. When did the last dinosaur die?
4. What were the smartest dinosaurs?
5. Why do Trex have arms?
6. What kind of raptor was in Jurassic Park?
7. Where did the T Rex come from?
8. How long did Utahraptor live?
9. What dinosaur can kill at Rex?
10. What is the difference between a velociraptor and a Utahraptor?

Tags

1. #earth
2. #billion
3. #years
4. #forms
5. #dates
6. #undisputed
7. #least
8. #informs
9. #fossil
10. #origin
11. #about
12. #earliest
13. #evidence
14. #studies