Suborder: Theropoda Superfamily: Tyrannosauroidea Family: Dryptosauridae Marsh , 1890 Genus: Dryptosaurus Marsh, 1877 Species D. aquilunguis ( Cope , 1866) ( type ) Dryptosaurus (from Greek Drypto , "tear" and Sauros , "lizard" ) was a genus of primitive tyrannosaur that lived in Eastern North America during the Maastrichtian stage of