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Dinosaurs mainly inhabited woodlands or open areas on lakeshore plains (or coastal plains).
The distribution characteristics of dinosaur populations are very different from those of mammals. Mammals tend to have small populations but are very widely distributed. During the Cretaceous period, a large number of different populations of dinosaurs lived in a single habitat.
In addition, they have a strong territorial identity. If a population migrates from one habitat to another, it evolves into a completely different population.
Although dinosaur fossils have been on Earth for tens of millions of years, it wasn't until the 19th century that people knew that such a strange animal once existed on Earth.
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1. Dinosaurs lived in the Mesozoic Era. According to scientists, dinosaurs lived in the Mesozoic Era. Dinosaurs have been living on the earth for about 100 million years, and it was not until 65 million years ago that they became extinct on the earth, and they have been breeding on the earth for about 100 million years.
2. Dinosaurs are a general term for a brother and some prehistoric reptile nuclear animals. It first appeared about 230 million years ago, lived in the Triassic, Jurassic and Cretaceous periods, and existed for 150 million years. During the late Cretaceous period, about 65 million years ago, almost all species of dinosaurs became extinct, but there is an opinion that modern birds are related to some dinosaur.
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Dinosaurs were a type of reptile from the Mesozoic era, with sturdy limbs, long tails, and large bodies that portrayed most dinosaurs. It mainly inhabits woodlands or open areas on lakeshore plains.
In 1841, when British scientist Richard Owen studied several fossilized lizard bones, he thought that they were left by some prehistoric animal, and named them dinosaurs, which means "dinosaurs".
The dinosaurs suddenly disappeared at the end of the Cretaceous period 65 million years ago, becoming a mystery in the history of the evolution of life on Earth, which is still unsolved. All of the earth's past creatures are recorded in fossils. In the strata of the Mesozoic era, many dinosaur fossils have been found.
A large number of bones can be seen in various shapes. However, in the Cenozoic strata that followed, there were no fossils of non-avian dinosaurs at all, which suggests that non-avian dinosaurs became extinct together during the Mesozoic Era, and that only birds remain today, and most scientists agree that "birds belong to dinosaurs". There are many types of dinosaurs, and their body shape and habits vary greatly, with the largest fragile dinosaur being more than 50 meters above the striking level, while the smallest hummingbird may be less than 10 centimeters.
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