PLATE CIX. 
OLIGOCENE ENTELODONTS. JAW OF PELONAX 
Nomenclature 
Cope 1880-3 Revised 1915 = 
Elotherium ramosum Pelonax ramosus 
Fias. 1-2. Pelonax ramosus (Cope, 1874). Lower jaw, side and top views, one-third natural 
size. Type specimen, Amer. Mus. No. 6393, Cope Coll. Upper Oreodon or 
Leptauchenia zone, Cedar Creek beds, N.-E. Colorado. 
Fic. 3, unidentified. 

