Family Ursidae Gray 1825 (bear)
Synonym: Subparictidae Clark and Guensburg 1972 [invalid subgroup]
Parent taxon: Arctoidea according to R. M. Hunt 1998
Sister taxa: Mustelida, Musteloidea, Nothocyon, Pinnipedimorpha, Ursida
Subtaxa: Adelpharctos, Agriotheriinae, Amphicynodon, Amphicynodontinae, Dinocyon, Gulonina, Harpaleocyon, Hemicyon, Hemicyoninae, Metarctos, Myadina, Taxina, Thaumastocyon, Tremarctinae, Ursinae, Ursulus
Ecology: ground dwelling herbivore-carnivore