> I am in the same position as you in this. But long-branch > attraction > seems to me to relate to a more general likelihoodist > argument LBA? One paper: http://hymenoptera.tamu.edu/courses/ento606/Suggested%20Readings/Bergsten_2005.pdf Perhaps two: http://www.biomedcentral.com/1471-2148/5/50 Eike