†Diadiaphorus Ameghino 1887 (placental mammal)
Mammalia - Litopterna - Proterotheriidae
Parent taxon: Proterotheriidae according to R. Lydekker 1894
Sister taxa: Anisolambda, Caliphrium, Deuterotherium, Diplasiotherium, Eoauchenia, Eoproterotherium, Epecuenia, Epitherium, Guilielmofloweria, Heptaconus, Heteroglyphis, Lambdaconus, Licaphrium, Licaphrops, Megadolodinae, Phoradiadius, Picturotherium, Polyacrodon, Polymorphis, Prolicaphrium, Proterotheriinae, Proterotherium, Prothoatherium, Ricardolydekkeria, Tetramerorhinus, Thoatherium, Tichodon, Xesmodon
Subtaxa: Diadiaphorus caniadensis, Diadiaphorus diplinthius, Diadiaphorus majusculus, Diadiaphorus robustus, Diadiaphorus sanctaecrucis, Diadiaphorus velox
Ecology: scansorial herbivore