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 "Actinobacteria" Garrity and Holt 2001
                 Class Actinobacteriaᵀ Stackebrandt et al. 1997
                   Order Actinomycetalesᵀ Buchanan 1917 (Approved Lists 1980)
                     Suborder Streptosporangineae Ward-Rainey et al. 1997
                       Family Streptosporangiaceaeᵀ Goodfellow et al. 1990
                         Genus Thermoactinospora Zhou et al. 2012
                         Genus Thermocatellispora Zhou et al. 2012
                         01.1 Genus Streptosporangiumᵀ Couch 1955 (Approved Lists 1980)
                         01.2 Genus Sphaerisporangium corrig. Ara and Kudo 2007
                         02 Genus Acrocarpospora Tamura et al. 2000
                         03 Genus Herbidospora Kudo et al. 1993
                         04 Genus Microbispora Nonomura and Ohara 1957 (Approved Lists 1980)
                         05 Genus Microtetraspora Thiemann et al. 1968 (Approved Lists 1980)
                         06 Genus Nonomuraea corrig. Zhang et al. 1998
                         07 Genus Planobispora Thiemann and Beretta 1968 (Approved Lists 1980)
                         08 Genus Planomonospora Thiemann et al. 1967 (Approved Lists 1980)
                         09 Genus Planotetraspora Runmao et al. 1993
                         10 Genus Thermopolyspora (ex Krasil'nikov and Agre 1964) Goodfellow et al. 2005 [monotypic]