Mammalian Fauna of the Judith River Formation (Late Cretaceous, Judithian), Northcentral Montana

Approximately 12 million years before the extinction of dinosaurs, a diverse terrestrial fauna inhabited what is now northcentral Montana. This title describes and evaluates the relationships of the large mammalian fauna of this area, which included rodent-like multituberculates, primitive therians, marsupials, and early eutherian mammals.