Class Dinophyceae Pascher (1914)
   Order Noctilucales Haeckel (1894)
     Family Leptodiscaceae Kof. (1905)
       43 Genus Cachonodinium A.R. Loebl. (1980)
       44 Genus Craspedotella Kof. (1905)
       45 Genus Leptodiscus Hertwig (1877)
       46 Genus Leptophyllus Cachon & Cachon-Enj. (1964), nom. rej. see Genus Abedinium Loebl. & A.R. Loebl. (1966)
       47 Genus Petalodinium Cachon & Cachon-Enj. (1969)
       48 Genus Scaphodinium Margalef (1963)