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Description
Didelphodon vorax
Named by Othniel Charles Marsh, 1889
Diet: Carnivore/Piscivore (Prey included clams and other shelled invertebrates; fish; crustaceans; baby dinosaurs and other small prey; eggs from dinosaurs; carrion)
Type: Metatherian (Stagodontid) mammal
Size: 19 inches (50 centimeters) long and 11 lb.
Region: North America (Montana and Wyoming USA; Alberta Canada)
Age: Late Cretaceous (68 to 66 million BC; Late Maastrichtian)
Enemies: Various predatory theropod dinosaurs such as Tyrannosaurus (especially juveniles), Acheroraptor, and Pectinodon; Quetzalcoatlus, a giant azhdarchid pterosaur; in the water, crocodilians such as Brachychampsa and Borealosuchus, sharks such as the wobbegong-like Restesia americana and hybodont Lonchidion selachos, and mosasaurs such as Mosasaurus.
Episode: Death of a Dynasty
Info: One of the largest mammals of the Mesozoic era, Didelphodon was a marsupial relative the size of a badger and would've been a voracious predator that fed on baby dinosaurs and other small vertebrates with its strong jaws and teeth with an estimate bite force more powerful than a hyena's when adjusted for body size . Its body resembles a modern-day otter and for that reason, its believed to have a similar lifestyle and niche as modern otters (as well as the docodont mammal Castorocauda from Mid-Late Jurassic China), hunting fish and other aquatic prey, using its strong jaws and teeth to crush hard-shelled prey.

Note: Based on the one from Saurian video game and skeletal replica, while coloration based on mixture of North American and Eurasian otter.

Sadly, this mammal didn't make it through the infamous K-Pg (Cretaceous-Paleogene) Mass Extinction event as metatherians (marsupial relatives) disappear from North America during the event, 66 million years ago!

Requested by

Walking with Dinosaurs is owned by BBC

Description
Didelphodon vorax
Named by Othniel Charles Marsh, 1889
Diet: Carnivore/Piscivore (Prey included clams and other shelled invertebrates; fish; crustaceans; baby dinosaurs and other small prey; eggs from dinosaurs; carrion)
Type: Metatherian (Stagodontid) mammal
Size: 19 inches (50 centimeters) long and 11 lb.
Region: North America (Montana and Wyoming USA; Alberta Canada)
Age: Late Cretaceous (68 to 66 million BC; Late Maastrichtian)
Enemies: Various predatory theropod dinosaurs such as Tyrannosaurus (especially juveniles), Acheroraptor, and Pectinodon; Quetzalcoatlus, a giant azhdarchid pterosaur; in the water, crocodilians such as Brachychampsa and Borealosuchus, sharks such as the wobbegong-like Restesia americana and hybodont Lonchidion selachos, and mosasaurs such as Mosasaurus.
Episode: Death of a Dynasty
Info: One of the largest mammals of the Mesozoic era, Didelphodon was a marsupial relative the size of a badger and would've been a voracious predator that fed on baby dinosaurs and other small vertebrates with its strong jaws and teeth with an estimate bite force more powerful than a hyena's when adjusted for body size . Its body resembles a modern-day otter and for that reason, its believed to have a similar lifestyle and niche as modern otters (as well as the docodont mammal Castorocauda from Mid-Late Jurassic China), hunting fish and other aquatic prey, using its strong jaws and teeth to crush hard-shelled prey.

Note: Based on the one from Saurian video game and skeletal replica, while coloration based on mixture of North American and Eurasian otter.

Sadly, this mammal didn't make it through the infamous K-Pg (Cretaceous-Paleogene) Mass Extinction event as metatherians (marsupial relatives) disappear from North America during the event, 66 million years ago!

Requested by

Walking with Dinosaurs is owned by BBC