BIGGEST Prehistoric Sea Reptiles That EVER Lived!

Check out the BIGGEST Prehistoric Sea Reptiles That EVER Lived! From the largest extinct sea monsters to some of the biggest prehistoric ocean animals, this top 10 list of prehistoric ocean creatures will amaze you! Subscribe For New Videos! http://goo.gl/UIzLeB Watch our "REAL Mermaid Sightings Around The World!" video here: https://youtu.be/ChM0CBRmVsM Watch our "10 Sea Monsters ATTACKING A Boat!" video here: https://youtu.be/0XROvoPCDNc Watch our "STRANGEST Animals People Keep As Pets!" video here: https://youtu.be/OMa96nPqz-Y 10. Ophthalmosaurus (16 feet) Ophthalmosauruses lived during the late Jurassic era about 165 to 150 million years ago and were present in oceans worldwide. Its name, which means ‘eye lizard' comes from the fact that it had very large eyes, which were up to 9 inches in diameter (22.8 cm)! They looked particularly big compared to the size of the rest of its body! 9. Platypterygius (23 feet) Some of you helped me out the other day when I asked for advice with the pronunciation so thank you! I'm finally going for it!! The Platypterygius was a dolphin-like Ichthyosaur that was around during the early Cretaceous period, about 100 million years ago. Growing up to 23 feet, they would have been the dominant predators of the Eromanga sea in inland Australia where they lived. 8. Thalattoarchon (28 feet) The Thalattoarchon was one of the first Ichthyosaurs and lived around 245 million years ago. Unlike others, their teeth were unusual. Rather than the conical shape, they were about 4 inches tall and blade-like with two cutting surfaces. Armed with such deadly weaponry, the Thalattoarchon is seen as the original oceanic macropredator- one that targets animals of a similar size to itself, as well as those that are smaller. 7. Plotosaurus (30 feet) The Plotosaurus, whose name literally means ‘swimmer lizard', lived around 70 million years ago in what is now California. They typically grew to around 30 feet long and were similar to other mosasaurs in that they had large powerful tails for propulsion, and narrow flippers, but were more streamlined than other species. Plotosaurus is thought to have been particularly fast, and also had much larger eyes than others, which would have given them a huge advantage in spotting prey, and predators. 6. Temnodontosaurus (39 feet) The Temnodontosaurus was a species of ichthyosaur that lived during the early Jurassic, between about 200 and 175 million years ago. They hunted for food in the deeper parts of the ocean, and remains have been found across Europe. Their name means ‘cutting tooth lizard', and it's clear to see why. 5. Tylosaurus (45 feet) The 45-foot long Tylosaurus proriger swam the planet's oceans around 85 million years ago during the Cretaceous… while T-Rex's walked the land. It was a species of mosasaur and is believed to have been one of the deadliest oceanic hunters of the time- feeding on fish, birds, sharks, and other aquatic reptiles. 4. Prognathodon (46 feet) Prognathodons were huge mosasaurs that could grow to up to 46 feet in length. They lived around 80 million years ago, and specimens have been found around the world, particularly in Europe and North America. Unlike other similar species, Prognathodon had a different way of hunting, adapted better for preying on tough shelled animals like shellfish, ammonites, and turtles. 3. Shonisaurus (49 feet) The Shonisaurus lived towards the end of the Triassic period, around 215 million years ago, and evidence has been found of them swimming in oceans around the world. Fun fact: 37 fossil specimens alone have been found in the Luning Formation of Nevada and is the official fossil of the state. 2. Mosasaurus (56 feet) The Mosasaurus is probably the most famous of the Mosasaurs…. If you think the name sounds familiar, it’s the one that was kept in the lake in the Jurassic World movie. They were one of the last, and one of the largest species of Mosasaurs, and lived between 70 and 66 million years ago. Remains have been found in Europe and North America, but it’s thought that they were present the whole world over. 1. Shastasaurus (60 feet) The Shastasaurus was an Ichthyosaur that lived in the Pacific Ocean during the Late Triassic period, around 215 million years ago, and was the largest marine reptile to have ever existed. They grew to around 60 feet long and weighed around 75 tons, which is a comparable size to a sperm whale, and almost the same weight as a blue whale. Origins Explained is the place to be to find all the answers to your questions, from mysterious events and unsolved mysteries to everything there is to know about the world and its amazing animals!