Today many ominous creatures live in the oceans – they are sharks-cannibals, huge squids, and mysterious deep-sea fish. But still, the creatures found in the depths of water in their parameters never came close to those giant creatures that lived in the seas of the past.
Then it was possible to meet huge sea lizards, monsters-sharks and even dangerous whales-killers. If today marine life is presented to us mainly as a source of food, then in those days the person would become food. We will tell below about the 10 most terrible monsters that lived in the oceans in prehistoric times.
This creature, obviously, is the most famous in the list. The very name of it translates as “big tooth”. Many will find it difficult to imagine a fossil shark the size of a school bus. Scientifically-popular sources, like the Discovery channel, help with the help of computer technologies to revive the monster. The shark was 22 meters long, and weighed about 50 tons. It was one of the largest predators in the Earth’s lifetime. The bite force per square cm was up to 30 tons. Although it seems that such a creature lived in the age of dinosaurs, megalodons lived on the planet 25-1.5 million years ago. Consequently, giant sharks have missed the last dinosaurs for about 40 million years. By the way, it is quite possible that megalodons managed to meet the first ancestors of people. Megalodons lived in warm oceans, hunting whales. But after the beginning of the glacial period in the Pliocene, the currents, the temperature of the ocean, changed. Under the new conditions, giant predators could no longer exist. Today, their closest relatives are white sharks.
These animals were typical pliosaurs, representatives of the Jurassic period. They were first described on the basis of the only tooth found in France in 1873. At the end of the same century, a skeleton was found. These were creatures long from 6 to 25 meters, with a large narrow head. Scientists believe that it could reach a length of 4 meters! Huge teeth reached half a meter. The creature floated with the help of huge fins, rising to the surface beyond the air. Diving it could for a long time and deeply. Scientists based on the remains modeled the body of lyoprevrodon. It turned out that he was not so fast, how much is very flexible. The dweller of the sea made quick jerks, attacking the prey. There is no doubt that the lyoprevoids were viviparous – such sizes simply did not allow them to crawl ashore to lay eggs.
Despite its unusual appearance, this creature is not at all a reptile. This is a whale, and by no means the most terrible in our list. Basilosaurs are predatory ancestors of the current whales. In length they reached 21 meters, and lived on the planet 45-36 million years ago. In those days the basilosaurs inhabited all the warm seas of the planet, being one of the largest predators. The whale actually looks more like a giant snake, because it had a long, sinuous body. Victims of it were large creatures, including pre-labor. Today, only a fantasy about bathing in the ocean, where the creature of the alligator-snake-whale lives, can kill the interest to water procedures for a long time. The physical data of basilosaurs indicate that they were deprived of the cognitive abilities of modern whales. They did not have echolocation, practically not submerging to great depths. They did not even have any social skills, whales were single. As a result, the monster was quite primitive and could not pursue its victim, if it was chosen on land. Sea Scorpion.
The name of this creature does not sound too scary. Meanwhile, it was one of the largest arthropods of all time. Racoscorpions lived 460-250 million years ago, reaching a length of 2.5 meters. Only their claw was up to half a meter in length. In those days, the oxygen level in the atmosphere was higher, which was the reason for the appearance of giant cockroaches, scorpions.Scorpio remained a marine creature, although many of his relatives at that time began to develop and dry land. These creatures have died out before dinosaurs, now it is not clear even if they were really poisonous. However, the structure of their tail resembles the structure of the same part of the body in scorpions, which makes it possible to assume the attacking function of the tail.
These animals belong to the platypus dinosaurs. They lived on the borders of water and land. Mayazavry could jump into the water, fleeing from predators. In length these creatures reached 7-9 meters, their weight was about 2-3 tons. Mayazhevs lived 80-73 million years ago. A flat wide toothless beak plucked vegetation or collected algae. The neck of the Mayzepra consists of many vertebrae, which implies its flexibility. On the skull was a small crest. The hind legs were strong, maintaining the weight of the body. Mayazavry could defend themselves with the help of their powerful tail. Animals laid eggs, kids about half a meter in length appeared from eggs. Mayajavrs lived in herds, as evidenced by the large number of skeletons found next to each other.
This creature can be called a real carnivorous tank. The ferocious predator reached a length of 10 meters, and his body was covered with plates that played the role of armor. There is an explanation for this – dunkleostei hunted for both their fellow humans and other predators. They did not have bones in the usual sense, their role was played by sharp bony ridges, like the tortoise. But the bite force was 8000 pounds per square inch, which is comparable to the bite of a crocodile. The skull of the predator was equipped with a powerful musculature, it allowed to tighten the food inside, like a vacuum cleaner, in a split second. The advantage of dunkleosteans was that the jaws were powerful and fast. Hunter at high speed opened his deadly mouth, seizing prey with great force. Virtually none of the inhabitants of the ocean at that time had no chance to escape. Dunkleostey – the most dangerous monster in the ocean at that time. These shellfish lived 415-360 million years ago.
This pliosaur is one of the most famous public and the largest in this family. For a long time there was debate about the true size of this inhabitant of the depths. As a result, scientists have proved that the crocusaur reached a length of 10 meters. However, only the skull reached 3 meters. In the massive mouth were abundantly placed teeth, up to 11 inches in length. Kronosaur became famous as the “king of the ancient seas” and even “t-rex of the ocean”. It is no accident that the name of the predator was given in honor of Kronos, the king of the Greek Titans. There lived a kronosaur in the southern polar seas, which could be quite cold in those times. The remains of the animal were first found in Australia. The fins of the animal are somewhat like tortoises. Perhaps the crozosaurs crawled ashore to lay their eggs. You can be sure that no one has dug their nests, so as not to anger a formidable predator. The cronosaur lived about 120-100 million years ago.
The length of these sharks reached 9-12 meters. At the same time, their uniqueness lies in the possession of a dental spiral on the lower jaw. Such an education could reach a diameter of 90 centimeters. The cross between a circular saw and a shark was a real sea horror. The teeth of the animal were jagged, which implies her carnivore. It is not clear only where the spiral was located – in front of the mouth, or deeper. The latter option implies a different diet, softer (jellyfish). The structure of the body remained unknown. But the fact that the Helicopryon was a fairly clever creature, is beyond doubt. The predator was able to survive the Triassic extinction, possibly due to its habitat in the deep layers of the ocean.
This ancient predator was something average between the current killer whale and the common sperm whale. In 2008, they found the remains of a whale that hunted other whales. His teeth were the largest for eating among all animals.Although the elephant’s tusks are larger, but they are not meant for this. The diameter of the teeth was 12 centimeters, and their length was 36. The body of the ancient sperm whale was in length up to 17.5 meters. It is interesting that the sperm whale lived about 13 million years ago, and therefore competed in the ocean for production with megalodone. The head of the predatory whale was 3 meters long, there are signs that it contained echolocation organs, as well as in modern toothed whales. Consequently, in turbid water conditions, the leviathan could effectively navigate. The animal was named in the fourth Leviathan, a biblical sea monster, and also in honor of Herman Melville, the author of the novel “Moby Dick” (it was attended by a giant sperm whale).
In the diameter, this fish has reached 5 meters, besides it is poisonous. The ram is strong enough to carry a boat with people. In this case it is a prehistoric super-fish, whose descendants are still hidden in the fresh and brackish waters of the Mekong River and in northern Australia. Here, no one is surprised by two-meter stingrays with a weight of three centners. Pisces is already several million years old, the structure of their body allowed them to stay alive. Giant fish could survive even the ice age. For its size and unusual appearance, the slope was called the “sea devil”. In front of the body are small eyes, followed by gills and a toothy mouth. It is interesting, but on the skin around the mouth and nose there is a sensitive zone, which allows the ramp to catch the electric and magnetic fields of other living things. This greatly facilitates the search for food. The freshwater predator has a terrible weapon – just 2 powerful and sharp spikes on the tail. The largest of them performs the role of harpoon, entering easily into the victim and being held inside by notches. The force of the impact is so great that even the bottom of the boat can not stand before it. The length of the spine reaches 38 centimeters. The second spike is smaller, it is designed to inject poison. This substance is deadly to humans. The stingray feeds on fish, shellfish and invertebrates. Female skate viviparous.