[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: 13c;41o;74f;125g;446s;53v
   Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
  Count: 12c;39o;71f;118g;441s;53v
     Class Bacillariophyceae Haeckel (1878) - pennates
    Count: 8o;13f;20g;55s
       Subclass Bacillariophycidae D.G.Mann (1990) - raphid diatoms
      Count: 8o;13f;20g;55s
         Order Naviculales Bessey (1907)
        Count: 2f;3g;19s
           Suborder Neidiineae D.G.Mann (1990)
          Count: 2f;3g;19s
             Family Pleurosigmataceae Mereschk. (1903)
            Count: 2g;13s
               Genus Gyrosigma Hassall (1845)
              Count: 6s
                 1 Gyrosigma attenuatum (Kützing) Rabenh.
                Count: -
                 2 Gyrosigma balticum (Ehrenberg) Rabenh. (1853)
                Count: -
                 3 Gyrosigma fasciola (Ehrenberg) J.W.Griff. & Henfr. (1856)
                Count: -
                 4 Gyrosigma hippocampus (Ehrenberg) Hassall (1845)
                Count: -
                 5 Gyrosigma spenceri (J.W. Bailey ex Quekett) Griffith & Henfr.
                Count: -
                 6 Gyrosigma tenuissimum (W.Sm.) J.W.Griff. & Henfr. (1856)
                Count: -