Chrono Zoom

This is a great tool for visualizing time.

Chrono:

Thanks to Lee Allison for finding this.


Harry Allen

Ron Blakey 's home page

Ron Blakey's home page is a great source of the information and paleogeographic maps he has made and compiled. It is the best compilation of the geologic literature ever!


Ron Blakey, Colorado Plateau Stratigraphy and Geology and Global and Regional Paleogeography:

Harry Allen