cladism's greatest weakness

Curtis Clark jcclark at CSUPOMONA.EDU
Thu Sep 16 23:32:06 CDT 1999

At 07:22 PM 9/16/99 -0700, Ken Kinman wrote:
>     Excellent point.  This speciation process is called "budding" and is
>quite common.   It is probably the true Achilles heel of cladism, even
>though I doubt most cladists realize this weakness.

Even my undergraduates understand that the paraphyly of the protists and
reptilia is of a different nature than the paraphyly of a species that
gives rise to peripheral isolates.

I think the vocal cladists (and I would include myself) are in the minority
because all the rest of them are actually spending their time doing
research and learning things about evolutionary relationships among

Curtis Clark        
Biological Sciences Department             Voice: (909) 869-4062
California State Polytechnic University      FAX: (909) 869-4078
Pomona CA 91768-4032  USA                  jcclark at

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