8 



University of California Publications. [Geology 



The proximal articular and the anterior aspect of tarso-metatarsi 

 described. All figures approximately natural size. 

 Figs, la and lb. Gymnogyps calif or nianus. No. 12161. 

 Figs. 2a and 2b. SarcorJiamphus grypMs, from a specimen obtained from 



the Museo de La Plata. 

 Fig. 3a. Sarcorhamphus clarJci. No. 12588. 

 Fig. 4a. Gathartornis gracilis. No. 12598. 

 Fig. 5a. Pleistogyps rex. No. 12599. 



