There have been many huge creatures in the history of the Earth, including a glorious creature of modern -day blue whales, elephants and ancient times. But when it comes to the most influential and mysterious creatures, the name of dinosaurs is first taken. These huge reptiles are not only known for their grand shape, but also strength, diversity and rule for millions of years.
The study of dinosaurs for scientists and researchers remains a very exciting subject even today. The cause of their extinction, whether meteorite is a conflict or climate change, but their impact still exists among us in the form of fossils and modern birds.
In this article we will know in detail the reasons for the origin, size, diversity and their extinction of dinosaurs.
The golden era of dinosaurs of dinosaurs
Dinosaurs originated about 23 million years ago in the triassic era and became completely extinct from the Earth about 6.5 million years ago. During this time, many small and huge creatures developed, some of which were highly huge and powerful, such as:
- Tirenosaurus Rex (T-Rex)-One of the most dangerous hunter dinosaurs
- Argentinosaurus – The biggest known dinosaur ever
- Spinosaurus – capable of hunting both water and land
Dinosaurs were not only of large size, but many types of adaptation were also seen in them. Some were extremely fast hunters, while some were giant vegetarian creatures, who could swallow the entire vegetation.
Size variations in dinosaurs
Dinosaurs were found in various sizes and weight. Some were as small as chicken, some were as high as multi -storey buildings.
1. Small Dinosaur
- Compsognathus-The chicken shaped and weighs only 2-3 kg.
- Microraptor – Little hunter dinosaur with winged, which was capable of flying.
2. Medium sized dinosaurs
- Velociraptor-About 2-3 meters long and weight was 15–20 kg. It was very fast and clever hunter.
- Iguanodon – A large vegetarian dinosaur, which used to be up to 10 meters in length.
3. The largest dinosaur
- Brachiosaurus-the length was 25 meters and weighs 80–100 tonnes.
- Argentinosaurus – The heaviest dinosaur ever had a length of 40 meters and weighs more than 100 tonnes.
- Dreadnoughus – It was a giant vegetarian dinosaur, which had a height of two -storey building.
The vast size of these dinosaurs was to protect them from natural predators, but their existence required too much food and large area.
Fossil Evidence of Dinosaus
Information about dinosaurs gives us from fossils. So far, more than 500 dynasties of dinosaurs and more than 1,000 species have been discovered. Their existence is found on every continent of the Earth, which proves that they could live in all kinds of environment.
Scientists believe that modern birds developed from Theropod dinosaurs. This is why some birds resemble dinosaurs, such as hawk and ostrich.
Diversity in diversity in dinosaurs
Dinosaurs are divided into several categories based on their food and physical structure.
1. Herbivorous Dinosaus
- Brachiosaurus – long -necked vegetarian
- Triceratops – Powerful vegetarian with three horns
- Iguanodon – Vegetarian with big teeth and strong bodies
2. Carnivorous Dinosaus
- Tirenosaurus Rex (T-Rex)-The most dangerous hunter
- Velociraptor – clever and fast hunter
- Spinosaurus – capable of hunting on water and ground
Evolution and Extinction of Dinosaus
The golden era of dinosaurs was in the Meesozoic era, including the Trichic, Jurassic and Cretaceous era.
But 6.5 million years ago, a huge meteoroid hit the Earth, causing heavy havoc.
The main causes of extinction:
- Meteorite collision – Sunlight disrupted, which ended the vegetation.
- Volcanic eruption – Earth’s temperature changed, which ended life.
- Climate Change – The food of vegetarian dinosaurs ended, which destroyed the entire ecosystem.
Discovery and modern relevance of dinosaurs (discovery and modern)
Scientists have discovered fossils of dinosaurs in many places, including:
- America-Fossils of T-Rexes and Trichretops
- China – flying dinosaurs and winged creatures
- Argentina – Remains of the world’s largest dinosaur
- India – Fossils of eggs of many dinosaurs in Gujarat and Madhya Pradesh
Modern popularity of dinosaurs (Modern Popularity of Dinosaus)
They have remained the center of attraction worldwide since the discovery of dinosaurs in the 19th century. Films like ‘Jurassic Park’ have made him even more popular.
Even today scientists are looking for new fossils, which is getting new information on the lives of dinosaurs and the reasons for their extinction.
