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Deinonychus

The Columbia Encyclopedia, Sixth Edition | 2008 | Copyright

Deinonychus [Gr.,=terrible claw], swift bipedal carnivorous dinosaur of the early Cretaceous period, approximately 119-93 million years ago. Fossil specimens have been discovered in Montana and Wyoming. Adults were around 10 ft (2.5 m) from head to tail and 1 ft (3 m) high. The second toe of each three-toed foot was modified into a long sickle-shaped claw, and the hands, each finger of which also ended in a claw, were adapted to grabbing prey. Deinonychus is thought to have been a very fast-moving predator. It belongs to the group of saurischian theropods [Gr., = beast feet] that includes Tyrannosaurus , Velociraptor , and living birds.

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Related entries from encyclopedias, dictionaries, and thesauruses

	Deinonychus Book article from: The Columbia Encyclopedia, Sixth Edition Deinonychus [Gr.,=terrible claw], swift bipedal carnivorous dinosaur of the...finger of which also ended in a claw, were adapted to grabbing prey. Deinonychus is thought to have been a very fast-moving predator. It belongs to...
	Velociraptor Book article from: The Columbia Encyclopedia, Sixth Edition ...being approximately 6 ft (1.8 m) long. It was similar to Deinonychus in appearance and, like that dinosaur, had a lethal sickle...thinsp;beast feet] that includes Tyrannosaurus , Deinonychus, and living birds.
	dinosaur Book article from: The Columbia Encyclopedia, Sixth Edition ...group sharing hind feet with only three functional toes (e.g., the carnivorous bipeds Tyrannosaurus , Velociraptor , Deinonychus , and possibly the living birds); others were sauropods [Gr., = lizard feet] with small heads...