[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
     Class Coscinodiscophyceae Round & R.M. Crawford (1990) - radial centrics
       1 Subclass Thalassiosirophycidae Round & R.M. Crawford (1990) see Class Mediophyceae Medlin & Kaczmarska (2004)
       2 Subclass Coscinodiscophycidae Round & R.M. Crawford (1990)
       3 Subclass Biddulphiophycidaea (Round & Crawford, in Round et al., 1990) see Subclass Biddulphiophycidae Round & R.M. Crawford (1990)
       4 Subclass Lithodesmiophycidae Round & R.M. Crawford (1990) see Class Mediophyceae Medlin & Kaczmarska (2004)
       6 Subclass Rhizosoleniophycidae Round & R.M. Crawford (1990)
       7 Subclass Chaetocerotophycidae Round & R.M. Crawford (1990) see Class Mediophyceae Medlin & Kaczmarska (2004)