Dinosaur | Definition, Types, Pictures, Videos, & Facts
Dinosaurs are animals that lived 100 million years ago. Some dinosaurs looked more like reptiles while others looked more like birds. Although many creatures are sometimes referred to as dinosaurs, dinosaurs did not fly or live in the ocean.
Highlights of Dinosaur:
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Reptilia |
| Superorder | Dinosauria |
What did Dinosaurs eat?
Most dinosaurs lived on plants, but some were carnivorous and carnivorous. The carnivore became famous in movies like Jurassic Park. T-Rex and Velociraptor are two of the fearsome carnivores.
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How do we know about dinosaurs?
We know about dinosaurs from fossils found in the ground. From the fossils, scientists were able to reconstruct the entire dinosaur skeleton and determine the dinosaur’s shape. Some of these fossils and skeletons can be seen in museums. Dinosaur fossils have been discovered on every continent in the world. Fossils of the same dinosaur have also been found on different continents.
Were Dinosaurs all big?
Dinosaurs, in general, were huge. It is believed that some dinosaurs were 40 feet or more tall. It’s twice the size of the tallest giraffe of all time. There were also smaller dinosaurs that were only a foot or more tall. There were many types of dinosaurs, from giant herbivores that walked on four legs to fast and dangerous carnivores that could run on two legs.
Why did Dinosaurs disappear?
Well, scientists are not 100% sure, but many believe that dinosaurs went extinct when a huge meteorite hit the Earth. When the meteorite collided, it threw dust into the sky, obscuring the sun for a very long time. This caused all the plants to die, and soon the dinosaurs died as well.
Biggest, Fastest, Tallest Dinosaurs
There is a lot of debate about which dinosaur is the biggest, smallest, smartest, etc. We don’t know for sure, but we can make an accurate guess using the latest information from paleontologists.
Largest – The largest dinosaur we currently know is Argentinosaurus. Paleontologists estimate it weighed up to 100 tons and was 120 feet long.
Smallest – Microraptor is probably the smallest dinosaur of all time. It was only about 16 inches long, about the size of a pigeon.
Largest Carnivore – Very large dinosaurs were all herbivores, but the largest carnivore was Spinosaurus. It weighs about 8 tons. The T-rex is also one of the largest carnivores.
Smartest – We don’t really know how smart dinosaurs were, but the best guess is that they weren’t very smart. The most intelligent, however, is probably Troodon. It is believed that the T-Rex is also quite intelligent for a dinosaur.
Dumbest – Stegosaurus is probably one of the dumbest dinosaurs. It was a giant animal with a brain the size of a ping pong ball.
Fastest – Ornithomimus was probably a very fast dinosaur. It looks a lot like an ostrich and can run as fast, if not faster, than an ostrich at 40 to 50 miles per hour.