👉 The term "ophthalmosaurus" is a genus of dinosaur that lived during the Late Cretaceous period, around 105 to 98 million years ago. It was one of the most famous dinosaurs and played an important role in the evolution of the mammalian lineage. Ophthalmosaurus had a long neck with powerful jaws, which allowed it to hunt large prey such as birds, reptiles, and mammals. Its body structure was similar to that of other members of its