The Ancient Globe is an incredible application where you can see the Earth at different stages that you chose. You can select age of Earth, when first animals walked, when plants developed, and even where your town would be located millions of years ago.
Austin, Texas 240 million years ago.
The Ancient Globe was created by Ian Webster, while working for Asterank (database of 600K asteroids). Plate tectonic and paleogeographic maps were produced by C.R. Scotese, PALEOMAP Project
To keep the Globe public, he hosts it on his dinosaur website at:
http://www.dinosaurpictures.org/ancient-earth/. He developed this globe so that children could visualize the changes they talk of in geology and ecology.
If you have children in school and unless you know all about the Triassic, Jurassic and the Cretaceous periods as well as where the Pangea or Pannotia super continents were located, you should bookmark this: http://www.dinosaurpictures.org/ancient-earth/.