Utahraptor ostrommaysorum, leg and foot Troodon Didelphodon (meaning "two-womb tooth") is

Didelphodon (meaning "two-womb tooth") is a genus of stagodont metatherians (extinct carnivorous mammalian clade that includes all mammals more closely related to marsupials than to placentals) from the Late Cretaceous of North America

roughly 6–9 feet (1

is described as a cryptodire (a turtle order)

the ancestor of the modern horse

Utahraptor ostrommaysorum, leg and foot Troodon Didelphodon (meaning "two-womb tooth") isScientific Name: Utahraptor ostrommaysorum Location: Grand County, Eastern Utah, USA Formation: Cedar Mountain Age: Early Cretaceous, 125 MYA 12 inches high. Photo by Francois Gohier Shipping Included