†family Idiornithidae Brodkorb 1965 (bird)
Parent taxon: Cariamae according to R. L. Carroll 1988
Sister taxa: Brontornithidae, Cariamides, Cunampaiidae, Gradiornis, Itaboravis, Otides, Palaeociconiidae, Psilopteridae, Lavocatavis
Subtaxa: Gypsornis, Idiornis, Oblitavis, Occitaniavis, Propelargus
Ecology: ground dwelling carnivore