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Re: Politically Correct Terminology (Was: parthenogenetically derived reptile offspring)
Dawid Mazurek writes:
>> basalness is a relative property
> So is primitiveness, for example - Saturnalia is morphologically a
> primitive taxon (as a sauropodomorf), but still an advanced
> (morfologically) taxon (as a sauropsid, amniote, whatever...).
You're right -- I should have been more explicit. Basalness is
relative to a clade that excludes the taxon in question; whereas
primitiveness (in the sense of few character-state transitions from a
MRCA) is relative to an including clade. So you can call _Jobaria_ a
primitive Neosauropod, but it doesn't make so much sense to call it a
basal Neosauropod (though we go right ahead and do it anyway).
/o ) \/ Mike Taylor <email@example.com> http://www.miketaylor.org.uk
)_v__/\ "Important decisions shouldn't be weighed on how badly your
opponents want something. A compromise isn't always acceptable"
-- Jeffrey Martz.