Tooth of Didelphodon, a Late Cretaceous Marsupial

Didelphodon sp

Class Mammalia, Infraclass Metatheria, Family Stagodontidaee

Geologic Time: Late Cretaceous

Size (25.4 mm = 1 inch): Fossil is 20 mm long, 4 mm across (maximum measurements)

Fossil Site: Hell Creek Formation, Perkins County, Montana

Code: HCF16

Price: Sold

Didelphodon Fossil ToothDescription: Coming from the twilight of the dinosaurs, the Hell Creek Formation, this is an incisor from the Late Cretaceous marsupial mammal known as Didelphodon. DidelphodonRoughly the size of a modern-day Opossum (Didelphis), it was fairly large for a mammal of the time. Recently discovered articulated material shows it to have an otter-like body. Indeed it is thought to have been aquatic, feeding on mollusks much like the modern-day sea otter.

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