👉 Melinoids are a group of extinct marine reptiles that lived during the Late Cretaceous period, around 256-248 million years ago. They were characterized by their elongated body shape and large eyes, which allowed them to see in low light conditions. Some species, such as the Palaeogene or the Early Jurassic, are known for being found on the shores of continental margins, where they lived alongside other marine reptiles like turtles and crabs.