👉 The term "callisaurus" is a genus of dinosaur that lived during the Late Cretaceous period (about 68 to 67 million years ago) in what is now Japan. The name "callisaurus" means "calf-like" or "bald head" in Japanese, which suggests that this dinosaur had a distinctive characteristic of having a long, narrow neck and a short, rounded head. The most famous member of the genus called "Callisaurus" is
