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TITANOTHERES OF ANCIENT WYOMING, DAKOTA, AND NEBRASKA 



Figure 173. — Type (holotype) skull of Brontotherium {=Menodus) ingens 

 Yale Mus. 2010. After Marsh, 1S74. About one-sixth natural size. 



Figure 174. — Type (lectotype) of Symborodon {= Brontotherium) hypoceras 

 Am. Mus. 6361. One-half natural size. Fragment of right horn core: A', front view; A^, rear view; A', top view. 



