65 plus million years old DNA remnants and nucleotide debris, *maybe*. If you're very, very lucky, you might still find *A* base pair that was still connected.
I did the math. Generously given:
• 65 m/y (Some dinosaurs were 2/3 times older.)
• 50 Billion tons; the total DNA of the biomass on Earth now. (Maybe less in prehistoric time.)
• A 521 year half life.
Now, this is the point in the conversation where I say, "Yes, I'm a fucking riot at parties," because this is the point in which I say we need to invest in mathematics, engineering and particle physics so we can just build a damned time machine.
I did the math. Generously given:
• 65 m/y (Some dinosaurs were 2/3 times older.)
• 50 Billion tons; the total DNA of the biomass on Earth now. (Maybe less in prehistoric time.)
• A 521 year half life.
All of the DNA would have disintegrated. ALL of it. All 50 Billion tons.
https://en.m.wikipedia.org/wiki/DNA
http://www.softschools.com/formulas/chemistry/radioactive_halflife_formula/113/
Now, this is the point in the conversation where I say, "Yes, I'm a fucking riot at parties," because this is the point in which I say we need to invest in mathematics, engineering and particle physics so we can just build a damned time machine.