

A second specimen (MUCPv-95), 8% larger, has also been recovered. The holotype specimen's (MUCPv-Ch1) skeleton was about 70% complete and included the skull, pelvis, leg bones and most of the backbone. It was published by Rodolfo Coria and Leonardo Salgado in the journal Nature in 1995. Giganotosaurus carolinii was named for Ruben Carolini, an amateur fossil hunter, who discovered the fossils in the deposits of the Rio Limay Formation of Patagonia, southern Argentina, in 1993.
