Every one living in this earth must have heard of dinosaurs. These are pre-historic animals or creatures that lived in this earth some millions and millions of years ago. It is said to believe that these creatures inhabited this earth and died or destroyed because of catastrophes.


Dinosaur:


It is a a fossil reptile of the Mesozoic era, often reaching an enormous size or a prehistoric thing that is outdated or has become obsolete because of failure to adapt to changing circumstances.

Mesozoic Era:


Denoting the era between the Paleozoic and Cenozoic eras, comprising the Triassic, Jurassic, and Cretaceous periods or the system of rocks deposited during it.The Mesozoic lasted from about 245 million to 65 million years ago. Large reptiles were dominant on land and sea throughout this time; vegetation had become abundant, and the first mammals, birds, and flowering plants appeared.


Some Dinosaur:


1.     pterodactyl:
Snapshot_2009-09-08_18-24-14


Period: Jurassic, and Cretaceous periods

Lived: 213-265 million years ago.


2.   velociraptor:
Snapshot_2009-09-08_18-27-09


Period: Cretaceous period.

Lived: 144-165 million years ago.

3. stegosaurus:

Snapshot_2009-09-08_18-28-50

Period: Jurassic periods.

Lived: 213-144 million years ago.


4. tyrannosaurus:
Snapshot_2009-09-08_18-30-16




5.triceratops and apatosaurus:
Snapshot_2009-09-08_18-32-24





Thank you,
R.Rajkumar.




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