†subfamily Phorusrhacinae Ameghino 1899 (terror bird)
Reptilia - Gruiformes - Phorusrhacidae
Parent taxon: Phorusrhacidae according to S. Bertelli et al. 2007
Sister taxa: Ameghinornis, Kelenken, Mesembriornithinae, Patagornithinae
Subtaxa: Devincenzia, Phorusrhacos, Titanis
Ecology: ground dwelling carnivore