👉 Cynodontia is a group of extinct theropod dinosaurs that lived during the Late Cretaceous period, approximately 65 to 70 million years ago. These dinosaurs were known for their large size and powerful jaws, which allowed them to reach high heights and climb steep cliffs. They are often associated with the dinosaur era due to their dominance over other groups of theropods during this time. Cynodontia is named after the Greek word "cynos," meaning "