Deinonychus

Deinonychus is a rapid dinosaur that lived during Early Cretaceous (115-108 million years ago). First discovered by the scientist John Harold Ostrom in Montana formation, USA. It is found commonly in Ntlers formation. The first fossils were its teeth, but full skeletons were discovered very fast. Deinonychus' name means terrible claw. It is separated only in one specie Deinonychus antirrhopus and belongs to the Dromesaurid family known for their speed and smartness. Its nearest cousin was Velociraptor, located in China.Deinonychus was a small carnivore with a length of 3,3 meters and a weight of 60 kilos. It had sharp claws and in his foot one claw was bigger than the others that it used as a weapon against its preys. Deinonychus hunted in big packs so they were terrible hunters for their time. Probably it fed with hadrosaurids, but if they were big in number they could hunt even sauropods. But mostly, they could eat whatever they found: from small mammals to giant sauropods. It had three fingers in a hand with sharp claws. Deinonychus was a small killing machine. We think Deinonychus had feathers covering, but it couldn't fly.