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 Nostocaceaeᵀ Eichler (1886)] see Family Nostocaceae Eichler 1886
                       [Genus "Coleospermopsis" Hauer et al. (2014), nom. inval.] see Genus Coleospermopsis Hauer et al. 2014 nom. inval.
                       [Genus Isocystis Borzì ex Bornet & Flahault (1886)] see Genus Isocystis Borzì ex Bornet and Flahault 1886
                       [Genus "Spelaea" Miscoe et al. (2014), nom. inval.] see Genus Spelaea Miscoe et al. 2014 nom. inval.
                       [Genus "Sphaerozyga" Agardh (1827), nom. inval.] see Genus Sphaerozyga Agardh ex Frank 1886
                       [Genus "Tolypothrichopsis" Hauer et al. (2014), nom. inval.] see Genus Tolypothrichopsis Hauer et al. 2014 nom. inval.
                       0 [Subfamily Nostocoideaeᵀ] see Family Nostocaceae Eichler (1886)
                       01 ?[Genus Heterocyanococcus H. Kufferath (1929)] see Genus Heterocyanococcus Kufferath 1929
                       02 [Genus Compactonostoc Fangfang Cai & Ren H.Li (2019)] see Genus Compactonostoc Cai and Li 2019
                       03 [Genus Desmonostoc P.Hrouzek & S.Ventura (2013)] see Genus Desmonostoc Hrouzek and Ventura 2013
                       04 [Genus Dendronalium D.O. Alvarenga, A.P.D. Andreote, L.H.Z. Branco, E. Delbaje, R.B. Cruz, A.M. Varani & M.F. Fiore (2021)] see Genus Dendronalium Alvarenga et al. 2021
                       05 [Genus Komarekiella G.S. Hentschke, J.R.Johans. & C.L. Sant'Anna (2017)] see Genus Komarekiella Hentschke et al. 2017
                       06 [Genus Mojavia Řeháková & Johansen (2007)] see Genus Mojavia Řeháková and Johansen 2007
                       07 [Genus Nostocᵀ Vaucher ex Bornet & Flahault (1886)] see Genus Nostoc Vaucher ex Bornet and Flahault 1886
                       08 [Genus Parakomarekiella F.Soares, V.Ramos & A.Portugal (2020)] see Genus Parakomarekiella Soares et al. 2020
                       09 [Genus Roholtiella Bohunická, Pietrasiak & J.R.Johans. (2015)] see Genus Roholtiella Bohunická et al. 2015
                       10 [Genus Violetonostoc Fangfang Cai & Ren H.Li (2020)] see Genus Violetonostoc Cai and Li 2020
                       x [Subfamily Anabaenoideae O. Kirchner (1900)] see Family Nostocaceae Eichler (1886)
                       x Genus "Coleospermum" Kirchner (1878), nom. inval.
                       x [Genus "Goleter" Miscoe et al. (2014), nom. ined.] see Genus Goleter L.H. Miscoe & J.R.Johans. (2016)