[dhughes]

Or an actual 68 million year old T. rex leg bone with blood vessels, still soft: http://www.smithsonianmag.com/science-nature/dinosaur.html

[chc]

But AFAIK nobody really believes you'll find readable DNA in there. It just doesn't last more than a couple of million years no matter how carefully you preserve it.

[andrewflnr]

I don't remember which source it was, but I remember they did claim to have (partially) sequenced it, and found that it's nearest living relative was chickens.