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Ten extinct Trolls: fish that can bite Tyrannosaurus Rex (9 meters long and 4 tons heavy)

The earth has existed for 4-4.6 billion years, while human civilization has only existed for seven or eight thousand years. Compared with the long life on the earth, human beings are just a drop in the ocean. Although human beings now regard themselves as the master of biology, in fact, there were many giant monsters on the earth that human beings could not compete with. They once ruled the land at the top of the food chain for tens of millions of years, and then disappeared successively in the Ordovician, Carboniferous and Devonian. Human beings are nothing compared with them. Xiaobian has brought a detailed introduction to the top ten extinct monsters. Let's take a look at those super monsters~

The top ten extinct Monsters: Prehistoric centipede, Shanglong, spiral toothed shark, Deng's fish, MOA, horned gopher, giant feather winged Limulus, mamenxi dragon, long necked camel and sand wild beast. 1. Prehistoric centipede, a three meter centipede

You can't imagine that the centipede with a length of less than ten centimeters that you occasionally see in life can reach nearly three meters in prehistoric times. Fortunately, the prehistoric centipede is now one of the top ten extinct monsters, otherwise it must be a human nightmare. Ancient centipede is one of the earliest invertebrates on the land. It looks ugly and terrible. It mainly lived in the Carboniferous period. At that time, there were almost no natural enemies. Later, it became extinct in the Permian period. 2. Shanglong, up to 15 meters long and 12 tons heavy

Shanglong was once the most ferocious creature on earth. It looks like a crocodile with strong jaws and rectangular teeth. However, it is much larger than a crocodile. Its length can reach 15 meters and its weight can reach 12 tons. Such a huge body is one of the ten extinct monsters worthy of the name. Shanglong lived in the Jurassic and Cretaceous period about 200-145 million years ago. It hunted squid, squid and plesiosaurs for food. It is worth mentioning that Shanglong evolved from plesiosaurs.

The pliosaurus was first discovered in the family pliosaurus, Richard & middot; Owen studied the animal in 1841 and named it Shanglong. Svalbard pliosaurs found on Svalbard island near the Arctic circle are the largest pliosaurs found now. According to fossils, it can be inferred that they are more than ten meters long. In addition, pliosaur fossils have been found in England, Mexico, South America, Australia and other places. 3. Spiral toothed shark, a fish with spiral teeth

Many people think that the spiral toothed shark is unlikely to really exist in the world, because this creature is so incredible that it is unimaginable for a fish with round teeth that can rotate.

It is said that the spiral toothed shark lived 300 million years ago. The helico in the spiral toothed shark (Helicoprion) comes from the Greek 'spiral', and the prion comes from the 'saw', which means' spiral saw '. This is the shape of its teeth. The teeth of the spiral toothed shark are arranged from large to small and curled into circular spiral teeth. However, no one has found a complete skeleton or fossil of the spiral toothed shark. What people can find is its wonderful teeth, which have never appeared in any other animal. 4. Dengshi fish has a biting force comparable to that of Tyrannosaurus Rex

Deng's fish appeared in the late Devonian, with a length of up to eight meters and a weight of more than four tons. They are one of the largest carnivorous bony fish from Cambrian to Devonian, and they are also one of the top ten extinct monsters. Deng's fish is known as the largest marine predator in the Devonian era, and is the prehistoric fish with the greatest bite force. According to research, its bite force can reach 55 MPa, and only Tyrannosaurus Rex can compete with it. 5. MOA, a big bird that can't fly

Although the MOA is called a bird, it can't fly. It was first named after the famous British anatomist Owen. The MOA's consciousness is a frightening big bird. The MOA lived around the 16th century and became extinct around the 1850s. According to DNA restoration research, it is found that there are ten species of MOA, of which the largest is the giant MOA. The giant MOA is larger than the ostrich, with a height of 3 meters and a weight of 250 kg. The smallest is about the size of Turkey.

The MOA is a herbivore with degenerated upper limbs. Its movement mainly depends on strong thighs. Each foot has three toes. It runs slowly. Its whole body is covered with black and yellow feathers, and its belly hair is yellow. 6. Horned gophers with horns on their noses

Horned gophers are mice with horns on their noses. According to scientists, they are the ancestors of voles. They became extinct 5 million years ago. Some people may think that the size of the horned hamster is too small compared with the other animals in the extinct ten giants, but as a rodent, the size of the horned hamster 1 is enough to be called huge.

As for the use of the special horn of the horned gopher, some people think it is mainly used as a tool for showing off or fighting in the process of courtship. However, this speculation was overturned by more in-depth research on horned hamsters. The optic foramen of horned hamsters are very small, which means that female horned hamsters are unlikely to be able to directly identify the males who show off or fight for victory in the process of courtship. Another speculation about the horned hamster's horn is that it can be used as a defense tool against predators, which is more reliable. 7. Giant feather winged Limulus, 2.5 meters long, looks like a scorpion

Giant feather winged Limulus Limulus lived 450 million years ago. It is an amphibian. They usually live on the seabed, but occasionally move on land. It's just that their actions on land are much more clumsy than in water. The giant feather winged Limulus looks like a scorpion, but it is much larger than the scorpion. It is one of the top ten extinct monsters. The giant feather winged Limulus can be up to 2.5 meters long, with a pair of large pliers and a solid shell covering the spine and claws. It walks on six legs.

Giant feather winged Tachypleus Limulus feeds on trilobites and other animals living in sand and mud, and occasionally eats its own kind, but these foods will not make it grow. Only shelling again and again can make it grow up. When just shelling, giant feather winged Tachypleus Limulus often gather together in groups to ensure safety. 8. Mamenxi dragon, a 22 meter long lizard

The fossil of mamenxi dinosaur was found in MaMingXi ferry, Yibin City. It is one of the largest sauropod dinosaurs found in China. The shape of mamenxi dragon is very similar to Thunder Dragon, but its neck is much longer than Thunder Dragon. Mamenxi dragon likes to live in lakes and swamps. In this way, it can lift its heavy body with the help of water buoyancy.

Mamenxi dragon belongs to the sauropod suborder, with a body length of 22 meters, a height of 7 meters and a maximum neck length of 14 meters. Through the identification of mamenxi dragon fossils by scientists, it is found that this dinosaur has a small skull, thin teeth and a very long neck. When straightened, it looks like a crane. Its spine is thick and heavy, and the joint surface of limb bones is rough. It lived 150 million years ago. Interestingly, although mamenxi dragon is one of the top ten extinct monsters, it is a herbivore. 9. Long necked camel, weighing 500 kilograms, looks like a camel

Long necked camel, also known as sliding distance animal, is a long necked hoofed animal living in South America. It lived about 20000 years ago. They are three meters long and weigh up to 500 kilograms. They have long limbs and three toes on each limb. The appearance of the long necked camel is like a camel with a short elephant trunk without a hump, but different from the small size of the camel, the long necked camel is fat, so it moves very slowly and is easy to be hunted by predators.

At present, long necked camel fossils are only found in South America. The oldest long necked camel fossils were produced about 7 million years ago, and the fossil records were lost in the late Pleistocene about 1 million years ago. Therefore, it can be judged that the long necked camel probably died out at this time. 10. Sand rugged beast, walking with finger joints

Sand wild beasts are very large and have a strange way of action. They have long and curved claws on their front claws, which means that they can't put their front claws flat on the ground. They can only support their body with short and powerful hind legs and walk by retreating and metatarsal joints. Sand wild animals are very picky eaters. They use their long arms to pull down high branches and choose the freshest branches and leaves to eat. However, although sand wild beasts are one of the top ten extinct monsters, they are only huge in size and very weak in combat effectiveness. The only defense means is to rely on their huge size and forelimb claws to resist the attack of predators.

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The animals mentioned above have been extinct for many years, and many of them only leave fossils. But don't think that animal extinction can only be found in prehistoric times. In fact, new animal species will be extinct on earth every year. Interested friends can continue to read the inventory of the top ten rare animals extinct in recent years compiled by Wang Xiaobian.