1 8 THE DESFADO FORMATION OF PATAGONIA 



the various genera of the Santa Cruz; so that I should put 

 the Deseado as far up as possible toward the Santa Cruz. 

 The Santa Cruz is above the Patagonian, and I think that 

 the Deseado should be put just before the Patagonian; 

 that is in the Oligocene, but just what part of the Oligo- 

 cene can only be determined when the other faunas have 

 been further studied. 



