†subfamily Deltatheridiinae Gregory and Simpson 1926 (eutherian)
Mammalia - Proteutheria - Palaeoryctidae
Parent taxon: Palaeoryctidae according to L. Van Valen 1967
Sister taxa: Aaptoryctes, Aceroryctes, Didelphodontinae, Eoryctes, Jarveia, Lainoryctes, Nuryctes, Ottoryctes, Palaeoryctes, Palaeoryctinae, Pararyctes, Pinoryctes, Voltaia
Subtaxa: Hyotheridium
Ecology: scansorial insectivore
Distribution: found only at Ukhaa Tolgod (AMNH) (Cretaceous of Mongolia)