†Gashternia Simpson 1935 (marsupial)
Full reference: G. G. Simpson. 1935. Descriptions of the oldest known South American mammals, from the Rio Chico Formation. American Museum Novitates 793:1-25
Parent taxon: Marsupialia according to G. G. Simpson 1935
Sister taxa: Adinodon, Ameridelphia, Archimetatheria, Australidelphia, Bistius, Didelphia, Didelphimorphia, Diprotodonta, Djarthia, Duquettichnus, Groeberiidae, Hatcheritherium, Ideodelphys, Kokopellia, Marsupicarnivora, Nototheriidae, Numbigilgidae, Palangania, Perameloidea, Perrodelphys, Polydolopimorphia, Progarzonia, Vombatoidea, Xenodelphis
Subtaxa: Gashternia ctalehor
Type: Gashternia ctalehor
Ecology: scansorial omnivore