†Stegomastodon Pohlig 1912 (gomphothere)
Mammalia - Proboscidea - Gomphotheriidae
Synonym: Rhabdobunus Hay 1914
Parent taxon: Gomphotheriidae according to W. D. Lambert and J. Shoshani 1998
Sister taxa: Amahuacatherium, Amebelodon, Amebelodontinae, Anancinae, Choerolophodontinae, Cuvieroniinae, Cuvieronius, Eubelodon, Gnathabelodon, Gomphotheriinae, Gomphotherium, Megabelodon, Morrillia, Pediolophodon, Pentalophodon, Platybelodon, Rhynchotheriinae, Rhynchotherium, Serbelodon, Sinomastodon, Synconolophus, Tetralophodon, Torynobelodon
Subtaxa: Stegomastodon aftoniae, Stegomastodon mirificus, Stegomastodon nebrascensis, Stegomastodon platensis, Stegomastodon primitivus, Stegomastodon waringi
Ecology: ground dwelling grazer