What Ruled the Oceans During the Age of Dinosaurs?

What ruled the oceans during the age of dinosaurs? In this prehistoric ocean documentary, we explore Mosasaurus, Tylosaurus, Elasmosaurus, Kronosaurus, Liopleurodon, Shonisaurus, Archelon, Cretoxyrhina, ichthyosaurs, plesiosaurs, pliosaurs, mosasaurs, giant sea turtles, ancient sharks, and the sea monsters that dominated the Cretaceous oceans. When people think of the age of dinosaurs, they usually imagine T. rex, Triceratops, sauropods, Velociraptor, and giant predators on land. But while dinosaurs ruled the land, the prehistoric oceans were filled with their own terrifying giants. During the Cretaceous Period, warm shallow seas covered huge parts of Earth. North America was split in half by the Western Interior Seaway, Europe was broken into island chains, and the oceans were incredibly productive. That meant more food, bigger predators, and some of the most extreme marine reptiles in Earth’s history. This video explores the prehistoric ocean animals that lived alongside dinosaurs, including: Mosasaurus — the giant marine lizard that became one of the most dominant predators in the Cretaceous ocean. Tylosaurus — an aggressive mosasaur built like a living torpedo, with a reinforced snout possibly used to ram prey. Elasmosaurus — the long-necked plesiosaur with a neck longer than its body, often linked to the Loch Ness Monster legend. Kronosaurus — a powerful pliosaur with a huge skull, massive jaws, and four flippers built for hunting large prey. Liopleurodon — the famous pliosaur from Walking with Dinosaurs, often shown much larger than the fossil evidence supports. Shonisaurus — one of the biggest ichthyosaurs ever found, a dolphin-shaped marine reptile that lived long before the final age of dinosaurs. Archelon — the biggest sea turtle ever, a peaceful giant trying to survive in a sea full of predators. Cretoxyrhina — the Ginsu shark, a fast, aggressive ancient shark from the Western Interior Seaway. These animals were not dinosaurs. Mosasaurus was