👉 The term "Chlamydosaurus" refers to a genus of prehistoric reptile that lived during the Late Cretaceous period (about 68-66 million years ago) in North America. This group included a wide variety of species, including several large and powerful dinosaurs such as Triceratops and Giganotosaurus. Chlamydosaurus was associated with the Late Cretaceous period due to its large size, presence in the late stage of the Permian