Physical Characteristics

All theropods were bipedal, meaning that they stood upright and ran or walked on their two hind limbs. Their legs were long and muscular; in many species, the tibia, or shin bone, was longer than the femur, or thigh bone. Theropods had fairly short arms that ended in grasping hands armed with two or three clawed fingers, depending upon the species. In all theropods, however, the fourth and fifth fingers were greatly reduced in size,…

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Taxonomic Relationships