Carnotaurus is a derived member of the Abelisauridae , a group of large theropods that occupied the large predatorial niche in the southern Landmasses of Gondwana during the late Cretaceous .
Carnotaurus is a derived member of the Abelisauridae , a group of large theropods that occupied the large predatorial niche in the southern landmasses of Gondwana in the later Cretaceous .