†superfamily Pediomyoidea Simpson 1927 (marsupial)

Mammalia - Didelphimorphia

Parent taxon: Didelphimorphia according to B. M. Davis 2007

Sister taxa: Aenigmadelphys, Alphadontidae, Apistodon, Didelphidae, Didelphoidea, Ghamidtherium, Iqualadelphis, Pedimanes, Peradectoidea, Sparassocynidae, Stagodontidae, Varalphadon

Subtaxa: Aquiladelphidae Glasbiidae

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Ecology: scansorial omnivore

Distribution:

• Oligocene of Argentina (1 collection)

• Eocene of Argentina (1)

• Cretaceous of Canada (4: Alberta, Saskatchewan), United States (27: Montana, New Mexico, North Dakota, Utah, Wyoming)

Total: 33 collections including 39 occurrences

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