One thing that still blows my mind about dinosaurs is the massive timeline. Relevant to this question are the time periods:
- Triassic Period (252.17 to 201.3 million years ago)
- Cretaceous Period (145 – 66 million years ago)
Triassic-period dinosaur fossils are 50+ million years older than Cretaceous-period dinosaur fossils. I would thus predict a massive difference in fossil quality. However, I'm unsure because perhaps any fossil that's able to last say 1 million years can just as easily last say 100 million years.
Question: Is there a massive drop in quality of Cretaceous vs. Triassic dinosaur fossils?