Division Bacillariophyta Engl. & Gilg (1919) see Phylum Bacillariophyta Engl. & Gilg (1919)
Count: 3c;45o;91f;291g;308s
   Class Bacillariophyceae Haeckel (1878) - pennates
  Count: 11o;37f;115g;299s
     Subclass Bacillariophycidae D.G.Mann (1990) - raphid diatoms
    Count: [f] 10o;35f;110g;299s
       Order Lyrellales D.G.Mann (1990)
      Count: [f] 1f;2g;66s
         Family Lyrellaceae D.G.Mann (1990)
        Count: 2g;66s
           Genus Lyrellaᵀ Karaeva (1978)
          Count: 53s
             Lyrella schaarschmidtii (Pant.) D.G.Mann (1990)
            Count: -