Niebla antiqua is an extinct species of abelisaurid theropod dinosaurs from the Late Cretaceous of Río Negro province, Argentina. Niebla antiqua is the only species in the genus Niebla, known from a p

Quilmesaurus is a genus of carnivorous theropod dinosaur from the Upper Cretaceous Allen Formation of Argentina. It was a member of Abelisauridae, closely related to genera such as Carnotaurus. The on