262 



HENRY F. OSBORN 



PRELIMINARY CORRELATION 



EUROPE 



PLIOCENE 



Upper 

 Middle 



Sicilian 



ASTIAN 



Lower Plaisancian 



Upper PoNTiAN 



EOCENE 



Lower Burdigalian 



Upper 

 OLIGOCENE /Middle 



Upper 



^ Basal 



CRETACEOUS Upper- 

 most 



Aqxhtanian 

 Stampian 



Lower Sannoisian 



LUDIAN 



ASIA 



Siwaliks 

 Siwaliks 



Siwaliks 



Manchhar 



MIOCENE V Middle Vindobonian Manchhar 



AFRICA 



Fayum 



Fa\-um 



Middle Bartonian 

 Lutetian 

 Upper Ypresian 



Lower Lower Ypresian 



Sparnacian 

 (Upper Lande- 

 nian of Belgium) 



Upper Thanetian 

 ( =Cernaysian) 

 (Lower Lande- 

 nian of Belgium) 



Lower Thanetian 



Dani AN = Maestrichtian 

 (Terrestrial) (Marine) 



NORTH AMERICA 



"Loup River" 



Blanco 

 I Thousand Creek 

 ■] Rattlesnake and 

 ( Republican River 



( "Loup Fork" 

 ] Madison Valley 

 ( Clarendon 



i Deep River 

 •j Pawnee Buttes 

 ( Mascall 



( Arikaree 



\ "Upper Harrison" 



( Rosebud 



( Harrison (Lower) 



\ John Day 



( White River( Upper) 



( Wliite River (Middle) 



\ Brule Clays 



/ White River (Base) 



) Cypress Hills 



) Pipestone Creek 



\ Chadron 



( Uinta (Upper and 



j Middle) 



( Washakie (Upper) 



( Uinta (Lower) 

 •] Washakie (Lower) 

 ( Bridger (Upper) 



( Bridger (Lower) 

 \ Huerfano (Upper) 



i Bridger (Lower) 

 Huerfano (Upper) 

 Green River 



i Huerfano (Lower) 

 Wind River 

 Wasatch (Upper) 



Wasatch (Lower) 



Torrejon 

 Fort Union 



Puerco 

 Fort Union 



Hell Creek 



