In article <Pine.3.89.9406061819.A5695-0100000 at extro> paddy at EXTRO.UCC.SU.OZ.AU ("David J. Patterson") writes:
>Mark
>>What is a cladistic point of view.
>>I have taught many courses on protozoa at many levels, and in many
>contexts. all depends on how many lectures you have.
>>Most courses don't allow more than about 4 or 5, and at that level, I
>usually provide an evolutionary overview emphasizing the cytological
>innovations
>>then revert to adaptive 'types'
>>and then give a talk on each type with a small number of examples
>>david patterson
By cladistic point of view, I should have said a cladistic
point of view on higher level taxonomy... i.e., that only
monophyletic taxa deserve a formal name. And by monphyletic, I mean
those that comprise ALL descendants (to avoid the monophyly holophyly
paraphyly business). The ancestor of all protozoa is also an ancestor
of elephants.
Mark
--
Mark E. Siddall "I don't mind a parasite...
mes at vims.edu I object to a cut-rate one"
Virginia Inst. Marine Sci. - Rick
Gloucester Point, VA, 23062
