Panthera onca mesembrina is an extinct feline relative of the jaguar. Its body size was approximately 150 to 170 kg.
This carnivore is one that is best represented in the archaeological and paleontological sites of Benítez hill. Probably the caves were an important part of their habitat, where they brought portions of their prey such as mylodons, horses and camels.
Some caves could have also served as breeding burrows.