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Top 15 Prehistoric Sea Monsters And Dinosaurs

           Prehistoric sea monsters and dinosaurs interest us till today, and who wouldn’t want to know about horrifying prehistoric sea monsters and dinosaurs? Well as long as they don’t jump out of the screen and attack us, right? Here is a list of prehistoric sea monsters and dinosaurs that are bound to make you quiver a little.

1) Megalodon

                 Megalodon that means “Big Tooth”, was one of the most terrifying creatures of the sea. It is the largest predator and the largest shark ever recorded, growing up to 65 ft. long. They were considered the top of the food chain at their time, with a jaw that was 6.5 ft. wide, allowing it to consume a T-Rex’s as a whole. It had one of the strongest bites, with a bite force up to 108,500 – 182,200 newtons, enabling it to grab its prey and break its bones. They would most probably bite into the chest cavity, puncturing the heart and lungs of the prey with merely one bite. They were said to hunt whales during its lifetime along with other large predators.

2) Livyatan Melvillei

                Livyatan Melvillei is the biggest prehistoric whale that ever lived. It had a 10 ft. long skull, with a length of 50 ft. and weighing 50 tons. It had one of the longest teeth, which were even bigger than that of the Megalodon. It consumes hundred pounds of food per day to maintain its bulk along with fueling its warm-blooded metabolism. It preyed on other whales, fishes, squids and other sea creatures that crossed its path. They are said to have a bigger brain than that of other plus-sized sharks or fishes. The Livyatan Melvillei and the Megalodon were said to be arch enemies and might have crossed paths in the water.

3) Liopleurodon

               Liopleurodon means “Smooth Sided Teeth”, but that doesn’t mean it wasn’t ferocious. It would ambush its prey by pouncing on it, which was easy as it was a propulsive swimmer. This sea creature weighed 150 tons, measuring 25 m in length making it one of the largest and most powerful carnivore to ever live. It had two separate chambers in its nose, allowing it to have an exceptional, directional sense of smell. Each of its 4 flippers were 3 m long enabling it to guide its huge bulk effortlessly through the water.

4) Spinosaurus

                Spinosaurus means “Spine Lizard”, it was given this name due to its 5 ft. tall spines of its vertebrae, that created a fin which ran down the length of its spine. It was one of the largest carnivorous dinosaurs, maybe even bigger than the T-Rex or the Gigantasurous, that was amphibious i.e. prayed both on land and in water. It measured 60 feet long and could weigh up to 20 tons, whose skull is long and narrow similar to a crocodile. However, it is said that the Spinosaurus did not swim, but floated on the water, lunging at its prey with the help of its giant jaws, or stood on its hind legs in streams and lakes, attacking its prey from above using its claws that were about a foot long, situated on each of its fingers.

5) Giganotosaurus

            The name Giganotosaurus is a Greek word that means giant southern lizard. It was bigger than the T-Rex. Giganotosaurus weighted about 40 tons, with a 40-43 ft. length. They are said to have attacked in groups making it easy for them to prey on the Argentinosurous, being one of the biggest meat eaters of South America. Giganotosaurus’ bones have been studied to find that they were faster than the T-Rex, they were even able to sprint at 20 mph or even more while chasing fleet-footed prey. This gigantic creature’s skeleton was discovered by Ruben Carolina, which was only 70% complete and till date, the complete skeleton has not been discovered.However, with the skeleton findings, researchers have discovered that the brain of this gigantic creature was smaller compared to that of the T-Rex, approximately the shape, and weight of a banana fruit. However, it was capable of swallowing a human as a whole, along with possessing a short temper which could agitate it easily. Don’t want to get on the wrong side of this creature.

6) T-Rex

            The most famous dinosaur, the Tyrannosaurus Rex (T-Rex), whose name means “King Lizard”. This dinosaur had a length of 39.4 ft; a height of 13 ft. and weight 6 – 8 tons, with a 5 ft. long skull. It had teeth that measured 25 inches from the outside, while being 30 inches long from its roots. Its jaw could exert about 3 -5 tons of pressure on its prey, which was enough to tear flesh and bone. However, paleontologists could not identify its true speed but have estimated a speed of about 34 miles per hour. The T-Rex is a famous and impressive dinosaur but is only the fourth largest.

7) Quetzalcoatlus

               The Quetzalcoatlus was named after a mythical serpent god named ‘Quetzalcoatl’. This huge flying reptile had a wingspan of 36 ft. and was the largest creature to ever fly. The Quetzalcoatlus had a length of 18 ft. and weighed around 200 – 300 pounds. The most interesting fact about the Quetzalcoatlus would be that paleontologists believed that it couldn’t fly, having no other option than to launch itself off the side of cliffs and glide. Since they were unable to fly and glided instead, they have been said to obtain an altitude of about 10,000 ft. with a speed of 100 miles per hour. However, few people still seem to believe that they could fly, and fed on fishes.

8) Dunkleosteus

                The Dunkleosteus was about 30 ft. long, with a guillotine shaped mouth, and a highly muscular body that was needed by it to propel itself through the water when it attacked prey. its skull was made of several pieces of thick bone, giving it an armored plating that was difficult for other creatures to break through. They didn’t exactly have teeth but jagged extensions of their jawbone. These bones continuously grew and remained sharp, since the fish used them to bite their prey. Their teeth were thick and fang-like in the front, which were capable of chopping a large victim in half, whereas the teeth at the back were wide and a little smoother like molars, which were used for grinding food. The Dunkleosteus had their eyes socketed inside four pieces of thick bone that formed a circular shield to protect their eyes from predators. When it sees its prey, it turns its body around in pursuit of the meal, closing its jawbones together not only ripping a part of its flesh out but it severs its prey in half. Sounds scary enough, doesn’t it?

9) Pliosaurus

                   Pliosaurus was also known as predator X as it was one of the biggest carnivorous sea creatures, with a length of 49.2 ft. and weighed 45 tons. Though it looked like a simple yet stunning fish, it was twice as big and more ferociously than any other sea predator during the Jurassic period. It had a 10 ft. long jaw equipped with 12 inch long teeth fit to catch fish, squid and other marine reptiles. Its bite exerted a pressure that was 10 times stronger than that of a T-Rex, with a skull that was twice as bigger as the same. They were also well equipped to prey on a Plesiosaurus.

10) Shastasaurus

                     Shastasaurus’ looked similar to dolphins that swim in our oceans today but weren’t as friendly. They could grow up to 65 ft. in length, making them one of the longest fishes in the sea of the Triassic period. They were suction feeders that ate mostly fish.

11) Carnotaurus

                     Being 29.5 ft. long and weighing more than a ton, this dinosaur lived at the Cretaceous period in South America. The feature that stood out were the horns at the top of the Carnotaurus’ head, which added to its terrifying look, along with shaping its name. Paleontologists determined that it had a good sense of smell, ran at a great speed and it had scales on its back similar to those of a crocodile. It used its horn against those of the same or similar species and had small eyes, making their eyes less likely to be subjected easily to damage during a combat.  

12)Troodon

  Troodon is Greek for “Wounding Tooth”, which was due to the serrations on their teeth. The name, however, was derived after discovering the very first tooth in 1856. The Troodon had large eyes that glowed at night, which made spying on their prey easy in the day and night. They had a coat of feathers and were highly venomous which would slow their prey down with one attack. They were said to have an unusually larger brain which was heftier than its own body. They had a large sickle-shaped claw on each of its feet, which were believed to be used by it while trying to catch its prey. Even though the Troodon was 2.4 m in length and weighed 50 kg; being one of the smallest dinosaurs on this list, but yet being highly aggressive.

13) Ankylosaurus

  Ankylosaurus is a heavily armored, herbivorous dinosaur. Its back was covered in boney plates that were fused together, hence its name that means “Fused Lizard” or “Armored Lizard”. It had a heavy club-shaped tail, which it swung around to wound its attacker. Its tail was enough to break a T-Rex’s leg and injure it badly, being able to be swung at 45 degrees in either direction. It could grow up to 5 ft. high, 5 ft. wide and 20 feet tall, weighing about 6 tons. 

14) Deinonychus

   A Deinonychus is faster and more aggressive than a Velociraptor. Being 3 meters long, the Deinonychus was a highly skilled predator, who possessed a deadly sickle claw, and a bite force that was greater than any living carnivorous mammal. Small but highly dangerous.  A fun fact being that the producer of the Jurassic Park, based their oversized Velociraptor on the Deinonychus, as they were bigger and better.

15) Daeodon

Daeodon is Greek for “Terrible Pig”. Like the name suggests this creature was pig-like but was more aggressive than pigs are. The 3 m long, about 1.8m wide at the shoulders, a 90cm long skull, with a mass of 600 – 1000 kg, this creature like mentioned above resembled a gigantic, monstrous pig or a warthog. The Daeodon was closely related to the omnivorous Entelodon, also known as the killer pig, both being huge and opportunistic. The Daeodon that was native to North America, possessed a huge jaw, with prominent tusks and flaring cheekbones. This hyena-like scavenger had splayed nostrils that helped it smell already dead animal carcasses, but unlike wolves, when the Daeodon would arrive, the animal would leave its prey allowing the Daeodon to consume the remains. However, when hungry, they would attack any animal in its’ path, which would be possible due to its heavy, bone-crushing canids, allowing it to cause some major damage.

                            These pre-historic dinosaurs were very dangerous but each of them were one of a kind with their own features, advantages, and disadvantages, all of them giving an equally ferocious feel. Guess we wouldn’t want to live in the prehistoric ages after all.

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