SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 149, NO. 4 y PLATE 2 



Plate 2. Endocranial casts of Smilodectes gracilis 



Figs. 1. 2. 3. Smilodectes gracilis (Marsh). Endocranial casts: 1 (U.S.N.M. 

 17997), posterior view: 2 (U.S.N.M. 23276), posterior view; 3 (U.S.N.M. 

 23276), ventral view. Twice natural size. Bridger Basin, Wyoming. 



