|An artist's impression of Pampaphoneus biccai|
|The skull and reconstruction of Pampaphoneus biccai|
They concluded that it was a new species and gave it the name of Pampaphoneus biccai, after the Brazilian word 'pampas,' meaning open grassland and 'biccai' after the the man who last owned the land they were excavating. Using the basic morphology of other dinocephalians, it was identified as being most closely related to an Australian form called Australosyodon. Radioactive dating gave it an age of 265 million years old, middle Permian, at a time when the dinocephalians were becoming the dominant predators on the planet.
Its close relationship to other South African species as well as Australosyodon has given support to a theory about the shape of Pangaea, as palaeogeographists are in dispute about the super-continent's exact shape. This made Cisneros and Schultz believe Pampaphoneus or its ancestors originated away from South America and then migrated to the continent. Dinocephalians were herd-based animals (on the basis of large clusters of fossil tracks from the same species) which supports the idea that it was a migratory animal.