and Phil Currie erected a subfamily of Carcharodontosauridae, the Giganotosaurinae, to contain the most advanced South American species, which they found...

a new monophyletic taxon based on this relationship, the subfamily Giganotosaurinae, defined as all carcharodontosaurids closer to Giganotosaurus and Mapusaurus...

Giganotosaurus and Mapusaurus in the carcharodontosaurid subfamily Giganotosaurinae based on shared features of the femur, such as a weak fourth trochanter...