Dinosaurs began to appear on Earth 230 million years ago and evolved a wide variety of species, they are the real rulers of the earth, from the huge brachiosaurus to the petite pterosaurs, they are not only rich in species but also huge in number. Even after several major extinctions, they survived until 65 million years ago, when the dinosaurs suddenly became mostly extinct, largely due to environmental upheavals caused by planetary impacts.
Planetary impacts caused the extinction of the dinosaurs
Today, dinosaurs have become extinct, and their descendants birds have survived in another form, so today we will take a look at some of the famous extinct dinosaurs on Earth.
Brachiosaurus
Brachiosaurus, a herbivorous dinosaur, is the largest dinosaur on the earth, and its juvenile period is easy to be hunted by large carnivorous dragons, so its growth is extremely rapid, and its daily weight gain can reach tens or even hundreds of pounds. Similar in status to elephants on Earth today, adult brachiosaurs were largely invincible, and the only things that could kill them were age and disease.
tyrannosaurus
Tyrannosaurus rex, the most famous dinosaur, is also the most common ultimate overlord in science fiction movies, so it is also called Tyrannosaurus rex, which shows its status in people's hearts, in fact, Tyrannosaurus rex in the carnivorous dinosaur strength only ranks third, but the fame is indeed the largest, Tyrannosaurus rex is living in prehistory more than 65 million ago, the closest dinosaur to us humans, fossil species are also very rich, is the strongest animal on the earth's land at that time.
Velociraptor hunting
Velociraptors, medium-sized hunters, lived in a social position similar to the Hyenas of the African savannah, generally preying on small and medium-sized dinosaurs or scavengering after large carnivorous dragons. Agile and good at ambushing prey, it was the biggest enemy of mammals at that time, and it was precisely because of this hunting of small and medium-sized dinosaurs that mammals did not come out of the ground and dense forests until after the extinction of dinosaurs, ushering in the peak of evolution.
Spinosaurus
Spinosaurus, is the largest carnivorous dinosaur ever seen on earth, larger than the Yongchuan Dragon and Tyrannosaurus Rex, but it often acts alone, behaving in a manner similar to modern tigers, so in terms of overall strength may not be as strong as the Yongchuan Dragon group life or Tyrannosaurus Rex pair life, on the individual strength alone, Spinosaurus is the strongest carnivorous dinosaur on the earth.
Spinosaurus is not only good at hunting on land, but also covets prey in rivers and lakes, often preying on large fish in rivers, and often clashing with large crocodiles that were the overlords of the water at that time.
pterosaur
Pterodactyl, in all parts of the world have found its fossils, in China Zhejiang, the United States Texas and other regions have been found, its species is also very many, the largest aeolus pterosaur, body length of up to 13 meters, quite an airplane general, and the smallest is only equivalent to a swallow, living on the top of the forest. Pterodactyls are good at gliding and are very agile in traveling through dense forests and mountains, thanks to its well-developed cerebellum, which has a ratio of up to 7% of the cerebellum, which is much higher than any modern bird, meaning that its balance ability is very outstanding.
Triceratops
Triceratops, which mainly lived in North America and other regions 65 million years ago, and Tyrannosaurus rex belonged to the same region at the same time as the paleontology, is the strongest herbivorous dinosaur, its head has three sharp long horns, Tyrannosaurus rex does not dare to confront head-on, Triceratops is also the Tyrannosaurus rex caused the most damage to the herbivorous dinosaur. Its status is like that of rhinos and lions in the modern African savannah, and there is a risk of injury when they fight each other.
Whale whiskers
Whale whiskerosaur, amphibian, can hunt on land, can also go to the sea to catch large fish, live in seaside areas, often in shallow sea areas, hunting body floating on the surface, head into the water, catch large sharks and other fish or ancient fish living in the water.
Stegosaurus
Stegosaurus, the body is as big as a modern elephant, but the brain is as small as about 100 grams of walnuts, the brain capacity is very small to determine its behavior mode is relatively single, the temperament is more violent, it is not good at dodging hunters, encountering the predators of tyrannosaurs, etc., the first reaction is to escape, and once it can not escape, it is tough to fight back, like an African honeypot, which belongs to a more reckless type.
Its body structure is the reason why it can survive low-IQ behavior, with a row of sharp sword-like back ridges on its back, and later on the side of the body also produces sword-like spines, like modern porcupines, making it impossible for hunters to hunt easily.
Allosaurus
Allosaurus was the most powerful carnivorous dinosaur living in the late Jurassic period, mainly concentrated in North America and Africa, compared to the large herbivorous dinosaurs, its small size, but large brain volume, according to research, may be the most intelligent dinosaur in the Jurassic period, they have a lifestyle similar to the African lion group, living in groups and will take care of their cubs until adulthood. The hunting method is also based on ambushes, hitting prey with the jaw.
Little Thorn
A feathered dinosaur found in china, this dinosaur is covered with feathers, although it could not fly, and did not even glide like a pterosaur or Archaeopteryx, but other forms already had bird features. The discovery of The Little Raptor has a basis for the claim that birds evolved from dinosaurs, and there are many fossils unearthed by the Little Raptor, compared to the fact that archaeopteryx was found only in the German region 7, and the claim that the Little Raptor is the originator of birds is more convincing.
Yongchuan dragon preys on Mamenxi dragon
Yongchuan dragon is in China's Sichuan region, the upper reaches of the Yangtze River found large carnivorous dinosaurs, which is 30 million or 40 million years earlier than the tyrannosaurus, the size of the tyrannosaurus is larger than the tyrannosaurus, is the history of the first three giant carnivorous dinosaurs, mainly to the large herbivorous dinosaur Mamenxi dragon as food, generally a few live together, form a team hunting, from the perspective of cooperation, its strength is better than spinosaurus and tyrannosaurus, the overall combat effectiveness should be the strongest on the earth's strongest land carnivorous dinosaurs.
Qingdao Dragon
Qingdao dragon is one of the famous dinosaurs found in China's region, in essence, it was not the first to be found in Qingdao, the first to be found was in the Yantai area, but experts conducted research in Qingdao and finally named Qingdao dragon.
Qingdao dragon head department has an antenna general tentacles, its use has not yet been studied, but very cute, like the antenna baby, in the Shandong Peninsula, Qingdao dragon fossils a lot, in a few decades ago, Qingdao has a shaving head often prepared a Qingdao dragon fossil, once the customer kicked the head to hang some powder to stop the bleeding, the effect is very good.