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 Fibrobacteres-Chlorobi-Bacteroidetes (FCB) Gupta 2004 Phylum Bacteroidetes Krieg et al. 2012 Class Sphingobacteriia Kämpfer 2012 [monotypic] Order Sphingobacterialesᵀ Kämpfer 2012 Family Sphingobacteriaceaeᵀ Steyn et al. 1998 Genus Mucilaginibacter Pankratov et al. 2007 Mucilaginibacter sabulilitoris Kang et al. 2013