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Dinosaurs were the earliest reptiles.
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Why don't you look it up online yourself? That's a lot of information! Many!
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The dinosaurs are now gone
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Dinosaurs were once the undisputed masters of the planet, ruling the planet for hundreds of millions of years. During the Triassic (a geological stage dating from 100 million to 100 million years ago), they evolved from primitive reptiles, dominated the Jurassic period, and remained dominant until the end of the Cretaceous period ("dinosaurs" means dreaded lizards).
About 65 million years ago, dinosaurs became extinct along with countless other animals and plants. To date, about 350 genera of dinosaurs have been found in the world. Some dinosaurs were the size of rabbits, while others were more than 45 meters long.
Dinosaurs were land animals (plesiosaurs and pterosaurs lived in the sea and in the air, respectively, they were not dinosaurs) and they had successfully conquered every corner of the planet. The extinction of the dinosaurs, like most of the time they lived on land, was overshadowed by a layer of mystery.
Human understanding of dinosaurs starts with little by little clues. A few broken bones and a few teeth inadvertently lit a glimmer of light in the search for that distant past. In 1822, dinosaur fossils were first discovered in England, and since then there has been a dinosaur craze, and the level of enthusiasm has become such that it has become a fad.
It's hard to say for sure why dinosaurs are so popular, but one thing is for sure, these behemoths inspire endless and beautiful reverie in people's minds.
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1. Studies in recent years have shown that many dinosaurs had feathers on their bodies, but they are almost certainly flightless. Scientists say that two-legged theropod dinosaurs had feathers, in addition, in 2014SiberiaFound beaks of distant relativesDinosaur fossilsIt has also been shown that this dinosaur had feathers.
2. Dinosaurs are longer than blue whales. Argentinosaurus lived between 97 million and 94 million years ago.
It can weigh up to 70 tons, be up to 40 meters long and reach a height of up to 200 meters, while a blue whale can weigh up to 200 tons but is only about 30 meters long.
3. The first recorded dinosaur skeleton fossil was found in 1677 in a quarry in Oxford, England, by the University of Oxford.
Professor Robert Plott. At the time, he thought it might have been one of the dinosaur's limb bones.
4. Usain Bolt.
Faster than a Tyrannosaurus rex. Computer simulations calculated that the Tyrannosaurus rex ran at a speed of 29 kilometers per hour, which is not as fast as a car, but enough to catch up with most humans. However, the famous sprinter Usain Bolt can run at speeds of up to 44 kilometers per hour.
However, the emu-like dragon can run at speeds of up to 60 kilometers per hour.
5. Dinosaurs have experienced two catastrophes. 66 million years ago, an asteroid hit Earth, causing the extinction of 75% of species. However, this is not the first time dinosaurs have suffered extinction. 200 million years ago, the Triassic Jurassic period occurred.
Extinction, many land animals could not survive, but gave the big dinosaurs living space.
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Dinosaurs are a group of saurimorphs that mainly lived in the Mesozoic Era, and the dinosaurs were large in size as a whole, first appearing in the Triassic period about 240 million years ago, and extinct in the Cretaceous mass extinction event at the end of the Mesozoic Era in the Cretaceous period about 65 million years ago.
According to the definition given by the Chinese Paleontological Terminology Examination and Approval Committee, dinosaur refers to all the descendants of the nearest common ancestor of triceratops and modern birds, which have become extinct except for birds.
Dinosaurs were the most diverse and dominant vertebrates of the Mesozoic Era, dominating the Earth's terrestrial ecosystems for more than 100 million years, and the first person to discover dinosaur fossils was Gideon Mantel.
The conjectures of dinosaur extinction include: meteorite impact, climate change, ocean ebb tide, volcanic eruption, orogeny, abrupt change, evolution, change, and so on.
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Summary. Dinosaurs are a class of sauriformes that lived in the Mesozoic Era, and dinosaurs can be divided into avian and non-avian dinosaurs. Among them, non-avian dinosaurs lived only in the Mesozoic era (Triassic, Jurassic and Cretaceous) and were all extinct 65 million years ago.
The muscular limbs, long tails, and large bodies are some of the non-avian dinosaurs that inhabited mainly woodlands or open areas on lakeshore plains (or coastal plains).
In 1841, when British scientist Richard Owen studied several fossilized lizard bones, he believed that they were left by some prehistoric animal and named them dinosaurs, which means "terrifying lizards".
Dinosaurs as a whole were very large, and by the standard of dinosaurs, sauropods were the giants among them. During the long age of dinosaurs, even the smallest sauropods were larger than the other animals in their habitat, and the largest sauropods were several orders larger than any animal that appeared on the surface.
Facts about dinosaurs.
Dinosaurs are a class of sauriformes that lived in the Mesozoic Era, and dinosaurs can be divided into avian and non-avian dinosaurs. Among them, non-avian dinosaurs lived only in the Mesozoic era (Triassic, Jurassic and Cretaceous) and were all extinct 65 million years ago. The muscular limbs, long tails, and large bodies are some of the non-avian dinosaurs that inhabited mainly woodlands or open areas on lakeshore plains (or coastal plains).
In 1841, when British scientist Richard Owen studied several fossilized lizard bones, he believed that they were left by some prehistoric animal and named them dinosaurs, which means "terrifying lizards". Dinosaurs as a whole were very large, and by the standard of dinosaurs, sauropods were the giants among them. During the long age of dinosaurs, even the smallest sauropods were larger than the other animals in their habitat, and the largest sauropods were several orders larger than any animal that appeared on the surface.
Dinosaurs are a group of sauriformes that lived in the Mesozoic Era, named by British scientist Richard Owen, meaning "terrifying lizard", which is the most recent common ancestor of modern birds and Diplodocus and all their descendants. Dinosaurs, with their athletic limbs, long tails, and massive bodies, inhabited mainly woodlands or open areas on lakeshore plains, and they have all become extinct on the earth.
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Dozens of times more flexible because they really can't beat large carnivorous dinosaurs that are several times larger than them, and some of them are inflexible, so they will become smaller, just to protect themselves.
Most dinosaurs have feathers, and there should be very few people who know about this, and I once knew about it by chance.
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