ammonites
Gashternia Simpson 1935 (marsupial)

Mammalia - Theriiformes

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

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Type: Gashternia ctalehor

Ecology: scansorial omnivore