A new dinosaur has been identified in Argentina- a huge T-Rex-like carnosaur that hunted in packs and probably liked to munch on Argentinosaurus. Actually it's an old dinosaur- Mapusaurus roseae was found in a 90 million-year-old stratum, making it older than T-Rex by about 30 million years. My alma mater's own Dr. Philip Currie helped excavate and name it.
Here's a picture of its skull. Thanks to Papa Bear for the heads-up.