SMITHSONIAN MISCELLANEOUS COLLECTIONS 

 VOLUME 128, NUMBER 8 



Cfjarlesi ©. anb iHarp "^aux SMHalcott 

 Eessearcf) Jf unb 



A REVIEW OF THE UPPER EOCENE 



ARTIODACTYLA OF NORTH 



AMERICA 



(With 18 Plates) 



By 

 C. LEWIS GAZIN 



Curator, Division of Vertebrate Paleontology 



United States National Museum 

 Smithsonian Institution 



(Publication 4217) 



CITY OF WASHINGTON 

 PUBLISHED BY THE SMITHSONIAN INSTITUTION 



SEPTEMBER 28, 1955 



