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?] Phylum Fusobacteria Garrity and Holt 2012 [monotypic] Class Fusobacteriiaᵀ Staley and Whitman 2012 [monotypic] Order Fusobacterialesᵀ Staley and Whitman 2012 Family Leptotrichiaceae Staley and Whitman 2012 Genus Leptotrichiaᵀ Trevisan 1879 (Approved Lists 1980) Leptotrichia shahii Eribe et al. 2004