Reptilia - Gruiformes

Alternative spelling: Phororhacidae

Synonyms: Darwinornithidae Moreno and Mercerat 1891, Devincenziidae Kraglievich 1932, Mesembriorniidae Kraglievich 1932, Phororhacosidae Ameghino 1889

Parent taxon: Cariamoidea according to B. C. Livezey and R. L. Zusi 2007

Sister taxa: Bathornithidae, Cariamidae

Subtaxa: Ameghinornis, Kelenken, Mesembriornithinae, Patagornithinae, Phorusrhacinae

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Ecology: ground dwelling carnivore