The earliest known dinosaurs, lizard-hipped dinosaurs first appeared in the mid Triassic. As well as these first dinosaurs, the order includes all the carnivorous dinosaurs and one group of herbivores - the sauropods and their close relatives. The name 'lizard-hipped' comes from the shape of their pelvis, in which the pubis points towards the front of the animal. Birds are descended from this group of dinosaurs.
Scientific name: Saurischia
Rank: Order
Common names: Lizard-hipped
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