Mammalia - Deltatheroida - Deltatheridiidae

Full reference: B. M. Davis, R. L. Cifelli, and Z. Kielan-Jaworowska. 2008. 1. Earliest Evidence of Deltatheroida (Mammalia: Metatheria) from the Early Cretaceous of North America. Mammalian Evolutionary Morphology: A Tribute to Frederick S. Szalay 3-24

Parent taxon: Deltatheridiidae according to B. M. Davis and R. L. Cifelli 2011

Sister taxa: Atokatheridium, Hydotherium, Sulestes, Sulestinae

Subtaxa: Oklatheridium minax, Oklatheridium szalayi

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Type: Oklatheridium szalayi

Ecology: scansorial carnivore-durophage