MNOCERATA. 

 Pyramidal and Pisiform of Dinoceras mirabile, Marsh. (Left foot.) 



One-half Natural Size. Paii-e. 



Fig. 1. — ^Pyramidal (or Cuneiform) bone; outer view,- . . .. ]()7 



Fig. 2. — The same; anterior view, .. 107 



Fig. 3. — The same; inner view, showing face adjoiuiny lunar, .. 107 



Fig. 4. — The same; posterior view, .... 107 



Fig. 5 — The same; proximal view, .showing faces for ulna and pisiform, 107 



Fig. G. — The same; distal view, showing faces for unciform and for fifth nietacar])al, 107 



Fig. 7. — Pisiform; anterior view, ._ 100 



Fig. S. — The same; inner view, showing aiticulation with jjyrainidal, _. 109 



Fig. 9. — The same; 2)Osterior view, 100 



Fig. 10. — The same; outer view, , 100 



Fig. 1 1 . — The same ; proximal view, showing articulation with ulna, 109 



Fig. 12.— The same; distal view, 109 



