[Taxacom] London - Systematics Association Lecture and AGM, 9thDec

Dr. David Campbell amblema at bama.ua.edu
Mon Dec 7 15:39:11 CST 2009

Quoting Richard Zander <Richard.Zander at mobot.org>:

> My reading supports the idea that there is evidence for both
> gradualism
> and punctuated equilibrium in the fossil record. 

Yes.  Punctuated patterns occur if stabilizing selection is strong most 
of the time.  

Dr. David Campbell
425 Scientific Collections Building
Department of Biological Sciences
Biodiversity and Systematics
University of Alabama, Box 870345
Tuscaloosa AL 35487-0345  USA

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