2020-07-23

How big is the largest animal in history? Dinosaurs are nothing

By yqqlm yqqlm

In the animal world where the weak and the strong eat the flesh, as long as the animal has a tall body, it means more chances of survival. Therefore, different geological periods in the history of the earth have produced some huge animals.

The Cambrian period is 542 million to 485 million years ago. During this period, there were no animals on land. Odd Shrimp was the overlord of the Cambrian ocean. The largest strange shrimp fossil found so far is 2.3 meters long. There are a pair of big claws on the head, two ping pong ball eyes are very delicate, and the mouth is the size of a bowl.

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We may think that the strange shrimp is not big, but if we put it in the Cambrian ocean, this is an out-and-out terrorist. Top predator. Because the strange shrimp is thousands of times larger than the body size of most animals. Later, because of the emergence of larger animals, the strange shrimp lost its size advantage and gradually became extinct.

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The straight-shelled nautilus was the top predator in the ocean during the Ordovician period (480 million years ago to 440 million years ago). Their bodies are very large, the longest straight-shelled Nautilus can reach 6 to 10 meters in length. In front of it, the huge strange shrimp can only be its delicious food.

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I have read relevant information on Caiye.com before, Deng’s fish It is the most ferocious fish of the Devonian period (about 360 million to 415 million years ago). Deng’s fish is 10 meters long, weighs 4 tons, and has a bite force of 3 tons per square centimeter. It was the top predator in the earth’s oceans at that time. Deng’s fish finally became extinct in the Devonian extinction event.

While dinosaurs ruled the land, their relatives also occupied the ocean. Although both plesiosaurs and mosasaurs can reach large sizes, only ichthyosaurs can win the crown of the largest reptile ever. The largest known ichthyosaur is Shastasaurus sikanniensis, 21 meters in length and 50 to 60 tons in weight. This ichthyosaur lived in the Late Triassic and was previously incorrectly revised as a member of the genus Shonisaurus.

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Fishes are difficult to compete with sea beasts and sea climbers. The largest existing fish, whale shark, can reach 18 meters and forty to fifty tons. The famous prehistoric predatory shark Megalodon (Megalodon) has a maximum length of 20 meters and 70 or 80 tons. It has existed on earth so far. The largest fish. The largest bony fish is the Jurassic Leedsichthys Problematicus (Leedsichthys Problematicus), which can exceed 16 meters. This behemoth, like blue whales and whale sharks, is a harmless filter feeder for humans and animals and feeds on plankton.