The Plesiossa Land-sheller is an interesting gigantic combination of a plesiosaur and a mosasaur with a shell on its back along with two head and twelve eyes. For its gigantic unusual size it feeds highly on giant squids or anything large and not Menagerian in nature. Their shell is both ossified and cartilaginous allowing them to turn completely around and do some things that turtles aren't capable of doing. When these giant sea creatures mate the male will stick with the female until she lays her eggs on the male's shelled back which he will then protect on his back, abnormally the eggs have a odd effect in water and in fresh air. When the eggs are introduced to water they become gelatinous and see through like an amphibian's eggs but in fresh air they become like regular eggs. When the eggs hatch the babies will play amongst each other and learn how to breath and swim mainly due to the tidal pools left on the back of their father. They are native to the Primal and Naturae islands and their seas.