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Ten prehistoric deep-sea monsters
Ten prehistoric deep-sea monsters: Dungeonfish, Synodon, Megalodon, Giant Stingray, Crosaurus, Rhineland Iecher horseshoe crab, Longwang whale, Maureen whale, Melville whale, Tailu shark.

1, Dungeon fish

Dungeon fish, which existed in the Paleozoic Devonian period (about 360 million to 430 million years ago), is a large paleontology, with a length of 1 1 m and a weight of 6 tons, showing its large size.

Dungeon fish is regarded as the largest predator in the ocean during Devonian period, and also the largest carnivorous bony fish from Cambrian to Devonian period. Its main prey is fish and invertebrates protected by hard shells, and it was the top predatory animal at that time.

2, smooth tooth dragon

Atherosaur is a carnivorous marine reptile, which existed in the middle and late Jurassic period,1.600 million-1.55 million years ago. As a marine reptile, in the late Jurassic, its stout figure wandered around driven by four paddles of equal size, and it was cruel by nature. Atherosaur is a medium-sized marine creature, weighing about 2.5 tons, and its maximum length is 6.6 meters. The name time of the sauropod was 1873.

3. Megalodon shark

Megalodon, perhaps the most powerful creature ever found in the history of the earth, has more biting power in its mouth than Tyrannosaurus Rex. It existed in the late Oligocene from15 million years ago to the early Pleistocene from 2.6 million years ago.

It was the top marine predator at that time, and it was also called the most powerful creature in the history of the earth by many paleontologists. Megalodon is about 17 meters long and weighs 70 tons. Because sharks are cartilaginous fish, it is difficult to leave fossils on bones.

4. Giant stingray

The giant freshwater stingray is one of the largest freshwater fishes in the world. This kind of fish lived millions of years ago, but it still exists in this world.

American biologist Zab Hogan caught a giant stingray 4.27 meters long in the Mekong River in Cambodia. According to the measurement results, this big guy is actually the largest freshwater fish in the world.

5. Crotalon

Crosaurus is a kind of marine reptile, belonging to the suborder plesiosaur, which is characterized by a short and thick neck. Crosaurus got its name from Titan in Greek mythology, the ruler of the universe, kronos. Crosaurus lived 120 million years ago (early Cretaceous) and was a plesiosaur with a short neck (pictured). The neck bone is only 12, and the body length is 9- 10 meter. Its mouth is almost as long as its head!

6, Rhine Iecher horseshoe crab.

Iecher horseshoe crab (horseshoe crab) in Rhine is the largest horseshoe crab in history (horseshoe crab is a creature that existed at the beginning of the earth's gestation and just after the birth of fish, and it has hardly changed its appearance for 400 million years, and it is a veritable living fossil), with a total length of 2.5 meters, and it lived in the Early Devonian 390 million years ago.

From the fossils found, it can be seen that it has a hard shell skeleton, jointed limbs and segmented bodies, just like arthropods such as insects, spiders and crabs. It is said that these animals will prey on other arthropods and even some fish.

7. Dragon King Whale

Longwang whale is an extinct ancient marine mammal, which lived in the late Eocene 39 million to 34 million years ago. The most striking feature of the Longwang whale is its slender body. The length of Longwang whale is about 15 meters for females and 18 meters for males, and it can reach 2 1 meter at most, and it has a more slender body than modern whales.

The dragon king whale, also known as the mechanical toothed whale, was first discovered in Louisiana, USA. Archaeologists later found and preserved numerous other species in the fayum sediment in Egypt.

8. Mao Yilong

Maoyilong is a large plesiosaur, which existed in New Zealand in the late Cretaceous. Even the largest marine reptile in New Zealand waters about 65 million years ago, only a few fossils have been found so far. Mao Yilong is 12 meters long and has two large flippers. Maoyilong is a carnivorous animal, whose sharp, serrated teeth in their mouths can bite fish or squid tightly.

9. Melville whale

Leviathan meyeri is the largest species of Leviathan, an extinct toothed whale found in South America in Miocene. Scientists speculate that Melville whales are 17 meters long and weigh 65 tons.

At present, the largest tooth is 35cm, but a burnt whale tooth as long as 40cm was found in 20 13 years, so this Melville whale may be more than 17 meters. Melville whales are also known as top predators. Even prey on behemoths bigger than their own bodies. Melville whale, also known as Leviathan Maxwell whale, has few fossil samples at present.

10, Tailu shark

Continental sharks should live in the early Permian to the middle Permian, and they are carnivores in deep water. Tailu shark looks strange, with about 180 teeth in its lower jaw, which is simply a tooth monster. The most obvious difference between Tailu shark and other whales is that even if Tailu shark grows new teeth, its old teeth will not fall off but remain.