PLATE XLI. 



Jurassic Dinosaurs. — Sauropoda. 



Pleuroccelid.e. 



Page. 

 Fig. 1. Metacarpal of Pleuroccclus nanus Marsh ; front view 185 



a, proximal end of same; ]>, distal end. 



Fig. 2. The same bone ; side view 185 



Fig. 3. Metatarsal of same; front view 185 



a, proximal end ; b, distal end. 



Fig. 4. The same bone ; side view 185 



Fig. 5. Ungual phalanx of same ; outer view 185 



Fig. 6. The same phalanx; front view 185 



6a, proximal end of same. 

 Fig. 7. The same bone; inner view 185 



All the figures are one-half natural size. 



Potomac formation, Maryland. 

 326 



