Difference between revisions of "Deinonychus"
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[[Image:deinonychus.jpg|thumb|right|300px|A fossilized ''Deinonychus antirrhopus'' skeleton.]] | [[Image:deinonychus.jpg|thumb|right|300px|A fossilized ''Deinonychus antirrhopus'' skeleton.]] | ||
| − | '''Deinonychus''' was a small, [[bipedal]], [[carnivore|carnivorous]] [[dinosaur]]. It | + | '''Deinonychus''' was a small, [[bipedal]], [[carnivore|carnivorous]] [[dinosaur]]. It existed about 110-100 million years ago during the [[Cretaceous]]. It had a long, [[sickle]]-like [[claw]] on the end of its big toe. ''Deinonychus'' [[fossils]] were first discovered in 1931 by [[Barnum Brown]] in southern [[Montana]]. In 1964 the fossils were designated ''Deinonychus antirrhopus'' by [[John Ostrom]] and [[Grant Meyer]]. Several Deinonychus were found surrounding a Tenontosaurus (a large, herbivorous dinosaur), suggesting that the animal was a pack hunter. |
| − | Deinonychus are believed | + | Deinonychus are believed to have been [[feather|feathered]], because their close relatives, such as Microraptor and Siornithosaurus have been discovered with downy coats. |
==References== | ==References== | ||
Revision as of 12:53, June 12, 2007
Deinonychus was a small, bipedal, carnivorous dinosaur. It existed about 110-100 million years ago during the Cretaceous. It had a long, sickle-like claw on the end of its big toe. Deinonychus fossils were first discovered in 1931 by Barnum Brown in southern Montana. In 1964 the fossils were designated Deinonychus antirrhopus by John Ostrom and Grant Meyer. Several Deinonychus were found surrounding a Tenontosaurus (a large, herbivorous dinosaur), suggesting that the animal was a pack hunter.
Deinonychus are believed to have been feathered, because their close relatives, such as Microraptor and Siornithosaurus have been discovered with downy coats.