ARK'S New GIANT UNDERWATER CREATURE REVEAL! - Shastasaurus and more - YouTube
Ark: Survival Evolved Gets New Update (v256) Adding New Creatures, Underwater Bases, Aquatic Creature Breeding and Many More! With a Trailer & Screenshots – The Hidden Levels
First Look: Leedsichthys - Largest Underwater Creature! - ARK: Survival Evolved - Patch 256 - YouTube
Ark: Survival Evolved Dossiers: Plesiosaur by DJDinoJosh on DeviantArt