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 Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980) Class Bacilli Ludwig et al. 2010 Order Lactobacillales Ludwig et al. 2010 Family Streptococcaceae Deibel and Seeley 1974 (Approved Lists 1980) Genus Streptococcusᵀ Rosenbach 1884 (Approved Lists 1980) Streptococcus australis Willcox et al. 2001