†Hydotherium Gregory and Simpson 1926 (mammal)
Mammalia - Deltatheroida - Deltatheridiidae
Full reference: W. K. Gregory and G. G. Simpson. 1926. Cretaceous mammal skulls from Mongolia. American Museum Novitates 225:1-20
Parent taxon: Deltatheridiidae according to W. K. Gregory and G. G. Simpson 1926
Sister taxa: Atokatheridium, Oklatheridium, Sulestes, Sulestinae
Subtaxa: Hydotherium dobsoni
Ecology: scansorial carnivore-durophage