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 Actinomycetota Goodfellow 2021
                 Class Actinomycetesᵀ Krassilnikov 1949 (Approved Lists 1980)
                   Order Streptosporangiales Goodfellow 2015
                     Family Streptosporangiaceaeᵀ Goodfellow et al. 1990
                       Genus Sphaerisporangium corrig. Ara and Kudo 2007
                         1 Sphaerisporangium cinnabarinum corrig. Ara and Kudo 2007
                         2 Sphaerisporangium melleumᵀ corrig. Ara and Kudo 2007
                         3 Sphaerisporangium rubeum corrig. Ara and Kudo 2007
                         4 Sphaerisporangium viridialbum corrig. (Nonomura and Ohara 1960) Ara and Kudo 2007