320 B. T. Hill — Cretaceous Formations of Mexico. 



The Eagle Pass beds which White correlated upon good 

 grounds with the Fox Hills stage have the characteristic aspects 

 of that formation in northern Coahuila that they have in the 

 Rocky Mountain region, and imperceptibly grade into the 

 Laramie phase with its characteristic fauna. The latter, in 



GEOLOGIC OUTLINE Of NORTH LAST ERN MEXICO 

 Shewing .elat.on of Atlantic Coastal Plain. GordiUeran and Great Plains Region 



-ITyTl 



Topography modified from map by Me^ica/i International Railway 



turn, into the Eo-Lignitic beds of the Southern States, the 

 whole having a unity of littoral lithologic features, thus indi- 

 cating that the whole of the Upper Cretaceous and basal 

 Eocene from the Dakota to the Claiborne inclusive, was a con- 

 tinuous epoch of sedimentation without any serious disturb- 



