Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Bacteria Woese et al. 2024 Kingdom Bacillatiᵀ (Gibbons and Murray 1978) Oren and Göker 2024 [Phylum Cyanobacteria Garcia-Pichel et al. (2020)] see Phylum Cyanobacteriota Oren et al. 2022 [Class Cyanophyceae Hauck (1885)] see Class Chroococcophyceae Hollerbach et al. 1953 [Order Nostocales Borzì (1914)] see Order Nostocales corrig. Borzì 1914 [Family Microchaetaceae Lemmermann (1907)] see Family Rivulariaceae Frank (1886) 2.0 [Genus "Spirirestris" "Flechtner & J.R.Johans. (2002)", orth. inval.] see Genus Spirirestis Flechtner & J.R.Johans. (2002) 3 [Subfamily Microchaetoideaeᵀ] 4 [Subfamily Tolypotrichoideae Komárek & Anagn. (1989)]