Superfamily Giraffoidea Gray 1821 (ruminant)
Parent taxon: Ruminantia according to W. Anyonge 1991
Sister taxa: Agriochoeridae, Amphimoschus, Bovoidea, Camelopardalis, Hispanomerycidae, Hypertragulidae, Krabitherium, Merycotherium, Palaeohypsodontus, Pecora, Thandaungia, Tragulidae, Tragulina, Traguloidea, Xiphodon
Subtaxa: Canthumerycidae, Climacoceratidae
Ecology: ground dwelling grazer-browser