REGULAR ARTICLES

• Phylogenetic Systematics and Evolution of Primate-Derived Pneumocystis Based on Mitochondrial or Nuclear DNA Sequences Comparison – Jean-Pierre Hugot, Christine Demanche, Véronique Barriel, Eduardo Dei-Cas, and Jacques Guillot
  Hugot et al. Appendices 1,2,3
  
  
  
• Time Flies, A New Molecular Time-Scale for Brachyceran Fly Evolution Without a Clock – Brian M. Wiegmann, David K. Yeates, Jeffrey L. Thorne, and Hirohisa Kishino
  
  
• Systematics of the Lizard Family Pygopodidae with Implications for the Diversification of Australian Temperate Biotas – W. Bryan Jennings, Eric R. Pianka, and Stephen Donnellan
  Jennings et al. AppendixB
  
  
  
• Least and Most Powerful Phylogenetic Tests to Elucidate the Origin of the Seed Plants in Presence of Conflicting Signals under Misspecified Models – Stéphane Aris-Brosou
  
  
• Phylogenetics of Fanged Frogs: Testing Biogeographical Hypotheses at the Interface of the Asian and Australian Faunal Zones – Ben J. Evans, Rafe M. Brown, Jimmy A. McGuire, Jatna Supriatna, Noviar Andayani, Arvin Diesmos, Djoko Iskandar, Don J. Melnick, and David C. Cannatella
  
  
• Reconstructing Ancestral Patterns of Colonization and Dispersal in the Hawaiian Understory Tree Genus Psychotria (Rubiaceae): A Comparison of Parsimony and Likelihood Approaches – Molly Nepokroeff, Kenneth J. Sytsma, Warren L. Wagner, and Elizabeth A. Zimmer
  
  
• Novel versus Unsupported Clades: Assessing the Qualitative Support for Clades in MRP Supertrees – Olaf R. P. Bininda-Emonds
  
  

POINTS OF VIEW

• Branch Lengths and Support: Revisited – David A. Morrison
  
  
• Phylogenetic Methods and Aetosaur Interrelationships: A Rejoinder – Simon R Harris, David J Gower and Mark Wilkinson
  
  
• Are the Dental Data Really at Odds With the Molecular Data? Morphological Evidence for Whale Phylogeny (Re)Reexamined – Maureen A. O'leary, John Gatesy, And Michael J. Novacek
  
  
• Total Evidence Versus Relative Evidence: A Response to O'Leary et al. (2003) – Gavin J. P. Naylor and Dean C. Adams
  
  
• Matrix Representations with Parsimony or with Distances: Two Sides of the Same Coin? – François-Joseph Lapointe, Mark Wilkinson and David Bryant