Ken Kinman writes:
Well I'll agree that Ungulata is probably polyphyletic. But who has put zhelestids outside of Placentalia?
This is a huge surprise to me too! David, please, what is your source?
I am rather skeptical of this, and I don't know how you can say there are no crown-group placentals known from the Cretaceous. Are you also saying that Kennalestids, Cimolestids, and Leptictids are are not crown-group placentals??
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