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Re: Another Alxasaurus query (was: thanks and ...)
In a message dated 2/2/99 10:10:00 AM EST, firstname.lastname@example.org writes:
<< I agree with George on therizinosauroids about one thing, though: it is
damned hard to make them the sister taxon to ornithomimosaurs (when so many
other maniraptoriforms share more features with them). >>
Take any theropod group that might be considered the sister group of
segnosaurs. Pretend that all their shared characters really are homologies.
Then try to imagine the common ancestor, in which those homologies would be
expressed all together for the first time. Having trouble?