Coelurosauria (order Saurischia, suborder Theropoda) An infra-order of carnivorous, bipedal dinosaurs that had small skulls, sharp, serrated teeth, long necks and tails, and hands with long, grasping fingers. They were the most persistent of the infra-ordinal dinosaur groups, extending from Triassic to Cretaceous times. The largest measured about 3 m long, although the great majority of these rather slender, agile dinosaurs were much smaller; Coelophysis, from the Late Jurassic of N. America, was less than 2 m long and weighed about 23 kg.
Coelurosauria (coelurosaurs; order Saurischia, suborder Theropoda) Infraorder of carnivorous, bipedal dinosaurs, which were the most persistent of the infraordinal dinosaur groups, extending from Triassic to Cretaceous times. The largest measured about 3m long, although the great majority of these rather slender, agile dinosaurs were much smaller.
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