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Re: archaic ungulates survive boundary events

I showed the Science paper to a couple of mammal specialists who were neither 
impressed nor convinced. It's only part of a single tooth that they say is not 
very distinctive. 

At 10:39 AM -0800 11/21/07, T. Michael Keesey wrote:
>On Nov 21, 2007 10:19 AM, evelyn sobielski <koreke77@yahoo.de> wrote:
>> Ungulates polyphyletic - not necessarily so, if you
>> include cetaceans. Neither hypothesis (Ferungulata vs
>> Ungulata - basically, horses closer to carnivores vs
>> horses closer to cows and whales) is exactly robustly
>> supported and the material evidence is all but
>> nonexistent.
>Well, yes, but then you also have to exclude the afrothere ungulates.
>And where are notoungulates coming out these days? I have no idea.
>"Ungulate" is really more of an ecomorph than anything else, it seems
>to me. And if some "condylarths" are stem-placentals (as Tom Holtz
>mentioned), then that's yet another case of this ecomorph arising
>I've gotten the paper from a couple of people now -- thanks!

Jeff Hecht, science & technology writer
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