Kingdom Protoctista Hogg, 1860
   Phylum Bacillariophyta Engl. & Gilg (1919) - diatoms see [unranked] Diatomea Kütz. (1844)
     Class Fragilariophyceae Round (1990) - araphid, pennate diatoms see Class Bacillariophyceae Haeckel (1878)
       Subclass Fragilariophycidae Round (1990) - core araphid diatoms
         Order Rhaphoneidales Round (1990)
           Family Rhaphoneidaceae Forti (1912)
             1 Genus Rhaphoneis Ehrenb. (1844)
             2 Genus Diplomenora K.L. Blazé (1984)
             3 Genus Delphineis G.W. Andrews (1977)
             4 Genus Neodelphineis
             5 Genus Perissonoe see Genus Perissonoë G.W. Andrews & Stoelzel (1984)
             6 Genus Sceptroneis Ehrenb. (1844)