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Re: Re: A Little Brain Teaser

>> Name one carnivore (extant/extinct) that can be confidently said to 
>> be derived from an herbivorous ancestor.
>  _Orcinus_orca_?  _Balaenoptera_musculus_?

Although the Cetacea is a member of Ungulata, there is nothing in the
dentition of basal members of the more inclusive Cete (such as mesonychids,
etc.) which show that they were strict herbivores.  Instead, mesonychids
retained a more primitive omnivorous-type dention.

Thomas R. Holtz, Jr.
Vertebrate Paleontologist
Dept. of Geology
University of Maryland
College Park, MD  20742
Email:Thomas_R_HOLTZ@umail.umd.edu (th81)
Fax: 301-314-9661