212 



HENRY F. OSBORN 



PRELIMINARY CORRELATION 



EUROPE 



PLIOCENE 



Upper 

 Middle 



Sicilian 



ASTIAN 



Lower Plaisancian 



Upper PoNTiAN 



Lower Burdigalian 



Upper 

 OLIGOCENE (^ Middle 



EOCENE 



I Basal 



CRETACEOUS Upper- 

 most 



Aquitanian 



Stampian 



ASIA 



Siwaliks 

 Siwaliks 



Siwaliks 



Manchhar 



MIOCENE \ Middle Vindobonian Manchhar 



AFRICA 



Lower Sannoisian Fayum 



Upper LUDIAN Fayum 



Middle Bartonian 

 Lutetian 

 Upper Ypresian 



Lower Lower Ypresian 



Sparnacian 

 (Upper Lande- 

 nian of Belgium) 



Upper Thanetian 

 ( = Cernaysian) 

 (Lower Lande- 

 nian of Belgium) 



Lower Thanetian 



D anian = Maestrichtian 

 (Terrestrial) (Marine) 



NORTH AMERICA 



"Loup River" 

 Blanco 



Thousand Creek 

 Rattlesnake and 

 Republican River 



"Loup Fork" 

 Madison Valley 

 Clarendon 



( Deep River 

 •] Pawnee Buttes 

 ( Mascall 



Arikaree 



"Upper Harrison" 



Rosebud 



Harrison (Lower) 

 John Day 



White River( Upper) 

 White River (Middle) 

 Brule Clays 

 WTiite River (Base) 

 Cypress Hills 

 Pipestone Creek 

 Chadron 



Uinta (Upper and 



Middle) 

 Washakie (Upper) 



Uinta (Lower) 

 Washakie (Lower) 

 Bridger (Upper) 



Bridger (Lower) 

 Huerfano (Upper) 



Bridger (Lower) 

 Huerfano (Upper) 

 Green River 



Huerfano (Lower) 

 Wind River 

 Wasatch (Upper) 



Wasatch (Lower) 



Torrejon 

 Fort Union 



Puerco 

 Fort Union 



Hell Creek 



