Class Dinophyceae Pascher (1914)
   Order Peridiniales Haeckel (1894)
     Family Gonyaulacaceae Er. Lindem. (1928)
       Genus Peridiniella Kof. & J.R. Michener (1911), incertae sedis
         1 Peridiniella catenata (Levander) Balech
         2 Peridiniella danica (Paulsen) Okolodkov & Dodge