V. S. GEOLOGICAL SURVEY 



MONOGRAPH 65 PLATE CX 



SKULL REFERRED TO DIPLOCLONUS AMPLUS7 



Nat. Mus. 4710, skull e, Indian Draw, Big Badlands, S. Dak., Chadron formation (in 1901 Mr. Hatcher did not recall the exadl level). One-fourth 

 natural size. (See p. 505.) This skull is provisionally regarded as the female of D. amplus, although its canines seem hardly small enough to support 

 this view. As compared with the type of D. amplus the zygomatic swellings and horns are much less developed 



