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 Bacillalesᵀ Prévot 1953 (Approved Lists 1980) Family Thermoactinomycetaceae Matsuo et al. 2006 Genus Seinonella Yoon et al. 2005 [monotypic] 1 Seinonella peptonophilaᵀ (Nonomura and Ohara 1971) Yoon et al. 2005