Kingdom Protoctista Hogg, 1860
Count: [p] 36p;91c;87o;183f;507g;35s;2v
   Phylum Bacillariophyta Engl. & Gilg (1919) - diatoms see [unranked] Diatomea Kütz. (1844)
  Count: [f] 4c;41o;83f;204g
     Class Bacillariophyceae Haeckel (1878) - pennates
    Count: 11o;37f;84g
       Subclass Eunotiophycidae D.G.Mann (1990) see Subclass Bacillariophycidae D.G.Mann (1990)
      Count: [f] 1o;2f;5g
         Order Eunotiales P.C.Silva (1962)
        Count: [f] 2f;5g
           Family Eunotiaceae Kütz. (1844)
          Count: 4g
             1 Genus Eunotia Ehrenb. (1837)
            Count: -
             2 Genus Actinella F.W. Lewis (1864), nom. cons.
            Count: -
             3 Genus Desmogonium Ehrenb. (1848)
            Count: -
             4 Genus Semiorbis R.M. Patrick (1966)
            Count: -