U. S. NATIONAL MUSEUM 



BULLETIN 169 PLATE 7 



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Fort Union Primates. 

 1, Palaechthonalticusph Gidley, part of right lower jaw with P2-M2, type (U.S.N.M. no. 9532), external 

 ^rf c'x?.. ^ Quarry; 2, Pawmoviys maturus Gidley, part of right lower jaw with P^-Ms, paratype 

 (U b.N.M. no. 9.545), e.xternal view, Gidley Quarry; 2a, same, crown view; 3, P. maturus, part of 

 right lower jaw with P4-M3, type (U.S.N.M. no. 9473), external view, Gidlev Quarrv Zn, same 

 crown view. (All figures about four times natural size; after Gidley.) 



