Rauisuchians were generally large in size - lengths of 13 to 20 feet (4 to 6 meters) were not uncommon,
Rauisuchians were all quadrupedal (walked on four legs), and like Aetosaurs had a pillar-erect limb posture. The erect gait of Rauisuchians is evidence that they were active and agile predators - and their gait was clearly an advantage of many of those of their prey animals which had less advanced locomotion, such as Dicynodonts and Rhynchosaurs.
Rauisuchians were large predators that lived in the Triassic period
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