[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Bacteria Woese et al. 1990 Phylum "Cyanobacteria" (ex Stanier 1974) Cavalier-Smith 2002 - cyanobacteria Class "Cyanobacteria" Cavalier-Smith, 2002 Family Family 4.1 nom. inval. Genus "Nostoc" Vaucher ex Bornet and Flahault 1886 nom. inval. see Genus Nostoc Vaucher ex Bornet & Flahault (1888) "Nostoc" Vaucher, 1888, Ex Bornet & Flahaul