SMITHSONIAN MISCELLANEOUS COLLECTIONS 

 VOLUME 131, NUMBER 6 



Cftarlesi ©, anb JHarp ^aux SKHalcott 

 3Res!earcf) Jf unb 



PALEOCENE MAMMALIAN FAUNAS OF THE 



BISON BASIN IN SOUTH-CENTRAL 



WYOMING 



(With 16 Plates) 



By 

 C. LEWIS GAZIN 



Curator, Division of Vertebrate Paleontology 



United States National Museum 



Smithsonian Institution 



(Publication 4229) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



FEBRUARY 28, 1956 



