Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Bacteria Woese et al. 1990 [paraphyletic?] Superphylum Terrabacteria Battistuzzi et al. 2004 Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 - cyanobacteria [Class Hormogoneae Thuret (1875) - filamentous cyanobacteria] see Class Hormogoneae Cavalier-Smith 2002 [Order "Stigonematales" Geitler (1925)] see Order Stigonematales (ex Geitler 1925) Cavalier-Smith 2002 nom. rej. [Family Mastigocladopsidaceae] see Family Nostochopsaceae Geitler (1925)