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 430 mm. 
Ulna, transverse diameter of distal end 58 mm. 
Radius, length over all 310 mm. 
Fig. 78. Proxi- 
mal end of right 
radius—1/4 natural 
size. 
Fig. 76. Right humerus 
from the posterior side—1/4 
natural size. 
Fig. 77. Right ulna from exter- 
nal side—1/4 natural size. 
