[Taxacom] Three kinds of bacteria (Negibacteria the oldest)

[Kenneth Kinman]

Dear All,
        I am puzzled why the prokaryotes are still classified as Domains Bacteria and Archaea.  The most fundamental divide should actually be between Negibacteria (which possess the outer negibacterial membrane) on the one hand, and the Posibacteria and Archaebacteria (which have lost that outer membrane).   Cavalier-Smith 1998 proposed the name Unibacteria for Posibacteria + Archaebacteria (since they have only the one membrane, not two).
      Cavalier-Smith, 2006 ("Rooting the tree of life by transition analyses") shows that Negibacteria are the oldest of the three taxa, and Archaebacteria are actually the youngest.   I am pretty sure that is why eubacterial trees are so screwed up, because using Archaebacteria as the outgroup will misroot them (Archaebacteria are actually an ingroup, not an outgroup).
      Anyway, the names Negibacteria and Posibacteria were proposed 30 years ago (Cavalier-Smith, 1987), and they are excellent names which subdivide the Eubacteria into two large and important taxa.  So why aren't they being used in databases like Catalogue of Life and NCBI's Taxonomy Browser, etc. ?  The Three Domain classification of life is outdated and should have been discarded a long time ago.
                    -----------------Ken Kinman
Cavalier-Smith, 2006:
        https://openi.nlm.nih.gov/detailedresult.php?img=PMC1586193_1745-6150-1-19-2&req=4
Evolutionary relationships among the four major kinds o | Open-i<https://openi.nlm.nih.gov/detailedresult.php?img=PMC1586193_1745-6150-1-19-2&req=4>
openi.nlm.nih.gov
Evolutionary relationships among the four major kinds of cell. The horizontal red arrow indicates the position of the universal root as inferred from the first