yea and from my understanding it's only ~500 years or so. So a 160 million years is how old the article says that amber is. So that means what ever amount of dna would have been gone through it's half life over 300,000 times. Just thinking about that makes me absolutely certain that we would not even find an intact base-pair, and a single base pair is not even useful for cloning.
It's not happening unless there is some natural mechanism that increase that half life of DNA quite a bit, and is stable for millions of years. Otherwise we would need the DNA to leave some byproduct that we can detect.