[dinosaur] Did Mapusaurus packs hunt adult Argentinosaurs?

Good day,



I would like to know your opinion about this hypothesis. Since they were 
contemporanious, could packs of very large carcharodontosaurids (_M. roseae_
) specialize in active hunt of large (even adult?) _A. huinculensis_? What 
would be their chance to kill such a large prey animal? Thank you in 
advance! Tom