The Grandfather of All Birds?

"Tyrannosaurus rex, meet the chicken – your third cousin more than 100 million years removed. A new family tree based on protein sequences recovered from dinosaur fossils firms up the dinosaur's avian lineage.
"Palaeontologists have known this overall connection."

http://www.newscientist.com/article/dn13772-t-rex-confirmed-as-great-granddaddy-of-all-birds-.html