Remains

 

Remains

What are fossils?

Fossils are the preserved remnants of plants and animals. They are usually found in rocks. They are several years old. They may be the remains of living things like bones, shells, eggs, seeds and so on. Or, they may footprint or scratch marks left long ago.

Different fossils

There are different ways in which things once alive can be fossilized.

What are stromatolites?

The oldest fossils are 'Stromatolites'. They are formed by bacteria such as cyanobacteria. Some of these date back to over 3 billion years!

How does formation of fossil take place?

Most fossils form when the dead remains of animals or plants get buried in the mud. They remain buried for years and eventually turn to stone.

How can a fossil's age be found?

Scientists fell a fossil's age from the rock it is found in. They know how Ola rocks are relative to each other because layers of rock form on top of each other, so the lowest layers are the oldest. Measuring the fossil's radioactivity gives a more precise date.

Iguanodon dinosaur

In the 1820 s, fossil hunter Gideon Mantell found the fossil or the Iguanodon dinosaur. He found a fossilized claw of the Iguanodon. It was similar to that of a modern iguana (a type of lizard)only twenty times bigger!

How is it known that dinosaurs existed?

Dinosaurs existed because they left behind a huge number of their fossilized remains. For a long time, no one knew what they were. The Chinese thought they belonged to dragons. Finally, in the 1820 s, an English naturalist called William Buckland recognized them. Till date, hundreds of species of dinosaurs have been identified from fossils. Recently, a clutch of dinosaur eggs Was discovered With the babies inside.

What is the need for the geologists to study fossils?

To know the age of a rock, geologists study the fossils it contains. Many Species only lived are certain times during Earth's history. So, it a rock contains a species that dates from a certain time that dates must have formed at that time too.

What are index fossils?

Useful fossil species for dating are called index fossils. These index fossils include certain ancient kinds of shellfish called trilobites, graptolites, brachiopods, crinoids, ammonites and belemnites.

Which were the biggest dinosaurs of all?

The biggest dinosaurs were the plant-eating sauropods. They had long necks and are leaves from tall frees. Of them, biggest dinosaur may have been brachiosaurus. If was at least

What information do fossils give us?

The study of fossils tells us how plants and animals evolved on Earth. If was found that most species only lived for a short time, before being superseded by another better adapted to the conditions of the time.

 

 

 

 Thank you  guys please read and watch all my post and comment in my post. I will post important contain about today science and  useful contain in our life. Thank you so much all of you

'Best of luck'