Besides, a number of other groups of organisms also develop diverse. The dinosaurs at this stage grow very diverse and are present almost everywhere in the world. This vegetation is the main food for some herbivorous dinosaurs such as Apatosaurus, Diplodocus, and Brachiosaurus.Ĭretaceous Period (145 to 66 million years ago) These changes lead to a number of large grow plant species such as ferns, and ponytail. During this period, the temperature was cooler due to more rainfall. The more they grow and increase in quantity. The Triassic period is a mass extinction of terrestrial animals.

Jurassic Period (201 to 145 million years ago) With this dry climate, some reptiles have heat-resistant skin, such as the skin of some mammals 'Therapsids', some flying lizards like Pterodactyl, Pteranodon.others Coelophysis that have 'hollow form', Plateosaurus. This is also the environment where dinosaurs first evolved. This is a time when the climate is relatively dry and hot and especially without polar ice as it is today. The first Triassic period (252 to 201 million years ago) And they divide the Mesozoic into three periods: the Triassic, Jurassic, and Cretaceous. Scientists have studied that dinosaurs lived from about 245 to 65.5 million years ago during the Mesozoic Era. By studying these fossils, researchers know that dinosaurs are ancient cousins of some species like crocodiles, snakes, bird, and lizards today.

Their fossils were first discovered in 1800. Scientists have not yet discovered how dinosaurs are extinct. Their diets are also very different, one of them being herbivores while others carnivorous and others an omnivore eats both plants and meat.

They have a variety different of sizes from a chicken to others over weighing nearly 100 tons. The name Dinosaurs means 'terrible lizard' and has many meanings because they were big creature and scariest. , the best place to bring awesome dinosaur games for kids!ĭinosaurs are living creatures on our planet more than 150 million years ago. Physical Features, classification of Dinosaursĥ. So what are dinosaurs? 'And why are they so much concerned? What are the precise definitions of dinosaurs that make dinosaur lovers always want to learn about them?Ģ.1 The first Triassic period (252 to 201 million years ago)Ģ.2 Jurassic Period (201 to 145 million years ago)Ģ.3 Cretaceous Period (145 to 66 million years ago)ģ. And they always learn and finding everything about These prehistoric creatures. You will surprise to see that they can recite all Dinosaur Names and facts about each one through Dinosaur Pictures. There is something about these extinct creatures that attracts and holds the attention of kids. Dinosaurs are a special theme that appeals to most children across the planet.

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