Lower Cretaceous
Scotese, C. R., 1997. Paleogeographic Atlas, PALEOMAP Progress Report 90-0497,
Department of Geology, University of Texas at Arlington, Arlington, Texas, 37 pp
© 1997, PALEOMAP Project

Web References

Be sure to visit Dr. Ron Blakey's website on the stratigraphy of the Southwestern US. His page on Cretaceous Paleogeography, Southwestern US will give you a taste of the contents.