Ophiothrix
Animalia | Echinodermata | Ophiuroidea | Ophiurida | Ophiotrichidae | Ophiothrix | Ophiothrix suensoni
Cyanophiothrix
Biota | Bacteria | Negibacteria | Cyanobacteria | Cyanophyceae | Nostocophycidae | Nostocales | Scytonemataceae | Cyanophiothrix
|  | Cavalier-Smith, 2002 | Stanier ex Cavalier-Smith, 2002 | Schaffner, 1909 | Hoffmann, Komárek & Kastovsky, 2005 | Borzì, 1914 | Rabenhorst ex Bornet & Flahault, 1886 | Molinari & Guiry, 2021