NO. I 



LOWER EOCENE MAMMALIAN FAUNAS — GAZIN 



tion within any narrowly restricted area at the railroad station of that 

 name. 



Veatch's revision (1907) of the term "Wasatch," while seemingly 

 a logical arrangement from the information forthcoming at that time, 



Fig. 2. — Chart showing approximate relations of the various stratigraphic units, 

 ages, and faunal horizons of the Wasatch and other early Tertiary formations of 

 southwestern Wyoming. (Modification of a portion of the chart prepared by author 

 for Eocene Subcommittee of the Society of Vertebrate Paleontology Committee on 

 Nomenclature and Correlation of the Continental Cenozoic.) 



involved certain errors that much alter conception of the sequence. 

 The three formations that he proposed as comprising the Wasatch 

 group were, in ascending order, Almy, Fowkes, and Knight. As 

 mentioned above, the Fowkes, consisting in a large measure of gray 

 to white volcanic ash, is now known to be younger than the Knight, 



