†family Alphadontidae Marshall et al. 1990 (marsupial)

Mammalia - Didelphimorphia - Alphadontidae

Alternative spelling: Alphadontinae

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

See also Johanson 1995 and Kielan-Jaworowska et al. 2004

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

Subtaxa: Albertatherium Alphadon Eoalphadon Turgidodon

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Ecology: scansorial omnivore

Distribution:

• Eocene of Algeria (1 collection)

• Paleocene of United States (1: Montana)

• Cretaceous of Canada (28: Alberta, Saskatchewan), Portugal (1), United States (120: Montana, New Mexico, North Dakota, South Dakota, Texas, Utah, Wyoming)

Total: 151 collections including 204 occurrences

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