120 



THE DESEADO FORMATION OF PATAGONIA 



tained. The radius is considerably weathered so that 

 measurements of the distal end are only approximate. 



Ulna, length over all 



Ulna, transverse diameter of distal end 



Radius, length over all 



430 mm. 



58 mm. 



310 mm. 



Fig. 76. Right humerus 

 from the posterior side 1/4 

 natural size. 



Fig. 78. Proxi- 

 mal end of right 

 radius — 1/4 natural 

 size. 



Fig. 77. Right ulna from exter- 

 nal side -1/4 natural size. 



