Thursday, November 19, 2009

Dinosaur Periods

There are 3 dinosaur periods the Triassic, Jurassic, and Cretaceous.


The Triassic

In the Triassic period all the continents were in one big land mass. It was hot and there was lots of desert.


The Jurassic
North America drifted away from Eurasia. It was warm .

The Cretaceous
Land started to separate and it was very tropical. Some of the plants that started appear were conifer, water lilies, and magnolias.




I am making the Cretaceous Period.



This is the America during the Cretaceous Period.

No comments:

Post a Comment