[JimRed]

An educated guess would be that we could recover DNA that is two million years old, and possibly go even as far back as 2.6 million. Before that, there was no permafrost where ancient DNA could have been preserved,” says Anders Götherström, a professor in molecular archaeology and joint research leader at the Centre for Palaeogenetics.

No permafrost? Global warming from Fred Flintstone's SUV, no doubt!

[Red Badger]

I thought that the Erf went thru many cycles of freeze then fry during those millions of years..................