U.'S. NATIONAL MUSEUM 



BULLETIN 169 PLATE 8 



Fort Union primates. 



1, Pronothodectes matthewi Gidley, part of left lower jaw with P4-M3, paratype (U.S.N.M. no. 9531), external 

 view, Gidley Quarry; 2, Paromomys maturus Gidley, part of right lower jaw with Pj-Ms, paratype 

 (U.S.N.M. no. 9475), external view, Gidley Quarry; 2a, same, crown view; 3, P. maturus, part of 

 left lower jaw with P4-M3, paratype (U.S.N.M. no. 9337), external view, Gidley Quarry. (All 

 figures about four times natural size; after Gidley.) 



