Didelphodon coyi
Temporal range: Late Cretaceous-Paleocene (Campanian-Danian), 74-65 million years ago

CLASSIFICATIONS
Kingdom: Animal (Animalia)
Subkingdom: Eumetazoa (Eumetazoa)
Phylum: Chordate (Chordata)
Subphylum: Vertebrate (Vertebrata)
Superclass: Tetrapod (Tetrapoda)
Clade: Amniotes (Amniota)
Clade: Synapsid (Synapsida)
Clade: Therapsid (Therapsida)
Clade: Cynodont (Cynodontia)
Clade: Mammaliamorph (Mammaliamorpha)
Clade: Mammaliaformes (Mammaliaformes)
Class: Mammal (Mammalia/Mammalians)
Subclass: Theria (Theria)
Clade: Metatheria (Metatheria)
Clade: Marsupialiformes (Marsupialiformes)
Family: Stagodonts (Stagodontidae)
Genus: Didelphodon (Othinel Charles Marsh, 1889)
Species: Didelphodon coyi (Fox and Naylor, 1986)

BIOLOGICAL INFORMATION
Living: North America (United States and Canada)
Diet: Carnivores, they hunting preying including shellfishes, ray-finned fishes, crustaceans, baby dinosaurs, small preys, dinosaur eggs, scavengers and carrions
Predation: Theropods such as Tyrannosaurus, Dromaeosaurus, Acheroraptor, Dakotaraptor; mosasaurs; pterosaurs such as Quetzalcoatlus; crocodiles such as Deinosuchus, Thoracosaurus, Borealosuchus, Brachychampsa
Size: 20 inches long and 12 lb.