The ocean of the Mesozoic Era was ruled by three kinds of sea monsters , which ones are there besid

Canglong: Megalodon? Dozens of successive ocean overlords!

Although there were more large and ferocious creatures on the earth in ancient times, the large creatures on the earth that pose a deadly threat to humans have never been completely extinct, and today's tigers, lions, black bears, cheetahs, hyenas, etc. can pose a deadly threat to humans, and even a wild boar can easily threaten human life. The reason why human beings are not so afraid of the corresponding ferocious creatures is not because the current creatures are not fierce enough, but because after continuous evolution, human beings have essentially surpassed other creatures in intelligence, and human beings can use resources that other creatures cannot understand. Therefore, in front of humans, no matter how ferocious creatures are, they do not have much destructive power.

In fact, if alone"Hand-to-hand combat", we humans are in"One-to-one"The situation is not able to defeat many creatures, maybe even"Erha"None of us can defeat it. But we humans are wise. We use tools to increase our combat effectiveness, we use language to work as a team, we use tactical and strategic choices to increase our chances of winning, and we use our technical abilities to create more lethal **.

So in the face of these abilities, any other creature is very limited in its threat to humanity. Many people may have watched a lot of science fiction movies, such as "Jurassic Park", and thought that if dinosaurs had survived to this day, humans would not have what they are today.

In fact, there is no logical relationship between them. Although dinosaurs and other ancient creatures were massive, this does not prove that they could rule the world and pose a serious threat to humanity. There are many large organisms on Earth today, and in fact, they do not pose much of a threat to humans.

Many ancient creatures were larger because there was more oxygen on Earth at that time, which is different from oxygen on Earth today. To put it bluntly, under the same conditions, we humans can evolve bigger and stronger bodies.

Of course, no matter how strong the body is, it can't be compared"Brain"The evolution. After all, intelligence is the core competitiveness of human beings. In fact, the extinction of these large organisms is also the result of the laws of natural selection.

Although it is impossible to give a completely accurate scientific judgment now, the extinction of any living thing actually has a natural development logic behind it.

There are many giant marine creatures in the 4.6 billion years of life on Earth, but with the vicissitudes of life, the environment has changed dramatically, and these marine creatures have also become extinct.

The main reason is that the movement of the earth's crust has led to the extinction of many giant sea monsters, and there has also been a time when most of the oceans have dried up, and the drying up of the oceans has led to the extinction of sea monsters.

This is because in the process of the earth's evolution, the oceans have become land, and these giant sea monsters cannot adapt to life on land and become extinct.

Newly discovered fossils reveal that Earth's first great predatory monster was a strange large water bug. Almost 500 million years ago, long before the dinosaurs, the dominant large carnivore on Earth was a giant sea scorpion.

The largest and oldest sea scorpion fossil ever discovered has been unearthed in Iowa, USA. Scientists have found that signs of these new prehistoric monsters have been left in all parts of Iowa.

The research team named the newly discovered giant scorpion Diccola (Pentecopterus decorahenis), which refers to the fossil discovery site in Diccola, Iowa, and looks like ancient Greek penteconters.

The giant scorpion is the earliest known member of the extinct family of hermit crabs, spiders, and scorpion-related horseshoe crabs.

At that time, most members of the horseshoe crab were relatively small, only about 2 inches long, but the giant scorpion was an exception. Paleontologists say it's huge, and can grow up to 5 feet 7 inches (meters) long.

The research team, led by James Lamsdell of Yale University in the United States, found more than 150 fossil fragments from at least 30 giant scorpions and published their findings in the journal BMC Evolutionary Biology.

The remains of the giant scorpion exoskeleton are so well preserved that the bristle insertion point is clearly visible.

The pentecopterus giant scorpion is not a vertebrate, it has no bones, it molts several times during its lifetime. It's like a cicada's exoskeleton can be clearly displayed. Giant scorpions have huge spines on their front limbs, which they use to catch their prey.

The posterior part has paddle-like limbs that help with swimming. The middle leg is used to grasp the bottom of the sea. The head and spike tail have more than a dozen claw arms.

Unlike the modern land scorpion, the animal's tail cannot sting, but is used for balancing and swimming, and half the length of its tail is the tail, which grabs its prey with many clawed arms from its elongated head and pushes it into its mouth, Lamsdell said. "It's obviously a very aggressive animal," Lamsdell said.

Most of the fossil specimens were collected from the Winneshiek Shale within an ancient meteorite impact crater in northeastern Iowa, mainly at the bottom of the Iowa River. Some sections of the river had to be temporarily dampened to allow scientists to collect fossil specimens. Yale scientists believe that this is a new species from 100 million years ago, when Iowa was still under the ocean.

Excavations carried out in 2010 uncovered more than 5,000 fossil specimens dating from the Ordovician period from 100 million to 100 million years. In addition to the pentecopterus fossils, scientists have also found fossilized tooth-shaped spines belonging to arthropods jawless fish and eels, as well as algae and plants.

Between 2.6 million and 15 million years ago, megalodons and Melville whales lived in the Earth's oceans. They are large in size and have a high need for food to survive. As the environment changes, the food chain breaks down, leading to extinction.

A: Between 990 and 890 years ago, there were Melville whales on Earth, and they ruled the deep sea for millions of years. The extinction of some of the giant sea monsters that have appeared on the earth is probably related to the movement of the earth's crust and changes in the living environment.

A species of megalodon once appeared on Earth. They are very large. Because of their huge size, they need a lot of food to survive, and the reason for their extinction is that there is not enough food.

For such a huge sea creature, the daily intake is the only criterion, and if this standard is lowered, or if it is lowered to this standard, the following small part of the area will seriously endanger his life.

I don't know the first one, but the one behind it is the Dun's fish.

Friends who have been to the National Maritime Museum may have noticed that there is a fossil of a "dinosaur in the ocean" on display in the museum, which is actually a fossil of a cangsaurus. The Mesozoic oceans were carnivorous marine reptiles with huge heads, strong jaws and sharp teeth that helped them prey.

1. Compared with some other creatures, the head of the dragon is stronger, because the joints between its jawbones are very tight, so it cannot swallow the whole prey like Neptune, but uses sharp teeth to bite the animal into the right size before swallowing. Canglong's sense of hearing and smell is extremely developed, but its vision is very weak, and it generally uses pressure waves to determine the location of the target. The limbs of the dragon are flippers, and the forelimbs are larger than the hind limbs, the flippers make the dragon more flexible and agile in the water, and its tail is also very strong, the length of the body is half of the body, the swinging tail can allow the dragon to reach extremely high speed in a short time, which helps to quickly capture prey.

2. The discovery of Cangsaurus fossils Cangsaurus lived in the middle and late Cretaceous period, and the Kansas Wasteland in the United States was the place where Canglong lived at that time. The first fossil of a canosaurus was found near the Meuse River in the Netherlands, where scientists at the time classified it among the Caplin crocodiles. Later, more and more Canglong fossils were excavated.

Scientists have come to an astonishing conclusion that this former overlord of the sea actually came from land, and over millions of years, it grew from a small lizard to a body length of more than ten meters.

Cangsaurus evolved from a small lizard, and the official appearance time was in the middle and late Cretaceous period, and it used 100,000 years to prey on its own food or competitors, that is, plesiodontosaurus, lamellaesaurus, etc., making itself the overlord of the sea at that time. But later, with the drastic changes in the environment, the cangosaurus also became extinct along with other dinosaurs, leaving only fossils on the earth for people to explore the scene at that time.

How terrible is the dragon that once dominated the entire ocean?

The overlord of the sea, the Cangsaurus is a carnivorous reptile with a huge head, strong jaws, and sharp teeth.

The dragon is the overlord of the sea, a carnivorous reptile with a large head and sharp teeth. Looks a bit like a crocodile.

They can swim quickly in the water, can make quick U-turns, and are very agile. Moreover, their teeth are barbed, and it is difficult to break free once they bite it. In addition, they can determine the location of their prey by the fluctuations in the water, and then kill them quickly.