Division Bacillariophyta Engl. & Gilg (1919) see Phylum Bacillariophyta Engl. & Gilg (1919)
Count: 3c;45o;91f;291g;308s
   Class Fragilariophyceae Round (1990) - araphid, pennate diatoms see Class Bacillariophyceae Haeckel (1878)
  Count: 12o;14f;54g;8s
     Subclass Fragilariophycidae Round (1990) - core araphid diatoms
    Count: [f] 12o;14f;54g;8s
       Order Thalassionematales Round (1990)
      Count: [f] 1f;3g
         Family Thalassionemataceae Round (1990)
        Count: 3g
           Genus Thalassionemaᵀ (Grunow ex H. Perag. & Perag.) Perag. (1921)
          Count: -