The ichthyosaurs were marine predators that looked like modern dolphins, and could reach a massive size during the Triassic period over 200 million years ago. "Another new ichthyosaur in the golden age of Jurassic discovery." https://animals.howstuffworks.com/.../9-extinct-exotic-sea-creatures.htm The Arthropleura was an ancient millipede-like creature that crawled around on its many legs some 300 million years ago. an aquatic lizard is another scary one on our list of 'Extinct Sea Creatures'. Oct. 23, 2014 (Feb. 8, 2015) http://www.bbc.com/news/science-environment-29743081, South East Travel Fishing Industry Association. Jan. 14, 2015 (Feb. 8, 2015) http://www.setfia.org.au/item/living-fossil-captured.html, University of California Museum of Paleontology. Feb 14, 2017 - 7 Extinct Sea Monsters, Straight Out Of Your Nightmare #megalodon #seamonster #dunkleosteus #pliosaur #Mosasaurus The two rows of sharp teeth on the upper and the lower jaw made sure nothing could escape its bite alive. "Mosasaur: Facts and Information about the Giant Marine Reptile." A large mosasaur i.e. (Feb. 9, 2015) http://www.prehistoric-wildlife.com/species/s/stupendemys.html, Prehistoric Wildlife. "The Kraken." The pilosaur was described as a crocodile on steroids; it could be as long as 59 feet. Kronosaurus is another oneÂ from the extinct pliosaur group. The Lord Geekington. It was bigger than a killer whale. Our Earth is much older than the reign of dinosaurs and there were many such nightmarish creatures who ruled the world. The frilled shark dates back roughly 80 million years and was thought to be extinct until two Australian fisherman accidentally caught one in 2015. The creature has been reimagined in the movie Jurrasic World. Our Earth is much older than the reign of dinosaurs and there were many such nightmarish creatures who ruled the world. De Agostini Picture Library/De Agostini/Getty Images, Nobumichi Tamura/Stocktrek Images/Getty Images, Animal Planet. These scariest extinct sea creatures could gobble up a human like a tea-time snack. Feb. 27, 2013 (Feb. 9, 2015) http://blogs.scientificamerican.com/running-ponies/2013/02/27/prehistoric-ghost-shark-helicoprions-spiral-toothed-jaw-explained/, ESPN. This is an amazing … It measured up to 7.5 feet in length, which is enough to make you stand on a chair despite how many millions of years separate you from this creature. Its muscular jaw could swallow the prey whole. Some scariest sea creatures lost the game of survival and went extinct. Daily Mail. 10. "Dunkleosteus." It was one of the largest (but not the scariest!) Many consider snakes or venomous spiders the most frightening animals alive. Enya Kim, from auctioneers Bonhams & Butterfields' natural history department, stands inside a set of shark jaws from the prehistoric species. The Tanystropheus had a 20-foot neck, which allowed it to pluck fish out the water without getting wet. Scientific American. Carcharodon megalodon was definitely much scarier than any living shark. It belonged to genus mosasaurs and existed during the MaastrichtianÂ. Discover the unknown world of extinct deep sea creatures in this story. These scariest extinct sea creatures could gobble up a human like a tea-time snack. The Guardian. Associated Press. Tap to Read 10 Extinct Sea Creatures As Terrifying As The Dinosaurs. Tylosaurus had a powerful tail and paddle-like limbs. Named after the Maori god Maui, thisÂ was an enormous sea creature which measured about 26 feetÂ in overall length. (Feb. 9, 2015) http://www.bbc.co.uk/nature/life/Pliosaur, Borenstein, Seth. The Tylosaurus usually swallowed its prey whole. Oct. 23, 2014 (Feb. 9, 2015), Rincon, Paul. "Prolacertiformes." (Feb. 9, 2015) http://www.animalplanet.com/tv-shows/other/videos/animal-armageddon-dunkleosteus/, BBC. "Stupendemys: Giant Amongst Mega-Turtles."
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