Oklatheridium
In Depth Oklatheridium is a genus of deltatheroidan mammal that lived in North America during the Cretaceous. Further Reading - Earliest Evidence of Deltatheroida (Mammalia: Metatheria) from the Early Cretaceous of North America. Mammalian Evolutionary Morphology: A Tribute to Frederick S. Szalay 3-24. - B. M. Davis, R. L. Cifelli & Z. Kielan-Jaworowska - 2008.