the seperation of continents

 As you know , as of now the world looks like  this. but imagine the map of the world a million years before . It was not the same ,in the cretaceous it looked like this    And in the jurrassic it looked like this
 And in the triassic it looked like this.
So basically as your keen mind observed that the continents are breaking down into pieces , they can be made into a puzzle so join all the continents and create your own world!