Psittacosaurus is an extinct genus of small, herbivorous dinosaurs that lived during the Early Cretaceous period, approximately 120 million years ago. It was one of the earliest and most primitive members of the Ceratopsia, a group of plant-
Psittacosaurus is an extinct genus of small, herbivorous dinosaurs that lived during the Early Cretaceous period, approximately 120 million years ago. It was one of the earliest and most primitive members of the Ceratopsia, a group of plant-