Please forgive me if this topic has been discussed already, but does anybody know if any scientist has attempted at recovering DNA from dinosaur fossils, and compared them with living specimens (like birds, lizard, mammels, etc) to attempt at detecting their closest living relative. And have they used a molecular clock to estimate when their family tress diverged?

It may have been tried, but dinosaur bones would be so old that it is extremely unlikely you could find intact DNA.

http://www.scienceforums.net/forums/showthread.php?t=5474

thank you admiral

I'm pretty much sure that this method does not work, since you'll never find a complete DNA-strang or chromosome package in fossils by any chance. That's why jurassic park is complete nonsense(see other thread).