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 Actinomycineaeᵀ Stackebrandt et al. 1997 [monotypic] Family Actinomycetaceaeᵀ Buchanan 1918 (Approved Lists 1980) [Genus "Actinobacterium"] see Genus Actinomyces Harz 1877 (Approved Lists 1980) 1 ["Actinobacterium bifidum" (Tissier 1900) Puntoni 1937] 2 ["Actinobacterium israeli" (Kruse 1896) Sampietro 1908] see Actinomyces israelii (Kruse 1896) Lachner-Sandoval 1898 (Approved Lists 1980) 3 ["Actinobacterium meyeri" Prévot 1938] see Actinomyces meyeri (ex Prévot 1938) Cato et al. 1984