Reference page:
Plate tectonics, John Ericson
http://www.theatlantic.com/technology/archive/2013/09/what-did-the-continents-look-like-millions-of-years-ago/279892/
http://www.thenewstribune.com/2010/05/17/1189349/news-brief-17sttimes.html
http://www.theatlantic.com/technology/archive/2013/09/what-did-the-continents-look-like-millions-of-years-ago/279892/
http://www.thenewstribune.com/2010/05/17/1189349/news-brief-17sttimes.html