👉 Ichthyosaurs are a group of sauropod dinosaurs that lived during the late Cretaceous period, around 69 million years ago. They were a type of dinosaur known for their large size and unique features such as powerful jaws, long necks, and four pairs of wings. The ichthyosaurian family included several genera: Ichthosaurus, Pachycephalosaurus, and Chelytrischonidae. These dinosaurs had a distinctive body shape with an
