Christopher Scotese's Paleomap Project: http://www.scotese.com/ may have
what you need (or may be able to produce it for you). The site has maps
and animations for both the past and a peek into the future.
David Lee Smith, Ph.D.
Director of Academic Operations
Institute for Advancement of Mathematics and Science Teaching
Associate Professor of Geology, Environmental Science, and Physics
La Salle University, 1900 W. Olney Avenue, Philadelphia, PA 19141