According to the International Commission on Stratgraphy, the Jurassic period lasted from 199.6 million to 145.5 million years ago. It is the middle period of the Mesozoic ("middle life") Era. This is the period when the dinosaurs were predominantly present on the face of earth, various species of the same were present everywhere. But an unexplainable event turn things around.
The universe has existed for more than 14 billion years, the sun for more than 4 billion years - both well over 3 million years.
The dinosaurs, those giant lizard creatures, dominated the face of Earth for about 165 million years. This period of time is called Mesozoic Era, and during this time the planet suffered several violent changes.
Never - its not alive. But it has existed for many billions of years, almost 13.
Where DID trilobites live? In the ocean, between 530 million and 250 million years ago.
One million years.
It is called Pangaea, about 245 million years ago
1 million (1000000)
The duration of One Million Years B.C. is 1.67 hours.
The southern continent that existed 200 million years ago was called Gondwana.
One Million Years B.C. was created on 1966-12-30.
One hundred and fifty million years.
One million is one thousand thousands. Three million is then three thousand thousands.
One thousand million of anything is a billion of it.
one millon years
The supercontinent 225 million years ago was called Pangaea. It consisted of almost all of Earth's landmasses connected together as one large landmass.
If by Myr you mean megayear then "mega" is the SI prefix that represents a factor of one million. Therefore a megayear is one million years.