Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 2024
             Kingdom Fusobacteriati Battistuzzi and Hedges 2024 [monotypic]
               Phylum Fusobacteriotaᵀ Garrity and Holt 2021 [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) nom. cons.
                         1 Leptotrichia buccalisᵀ (Robin 1853) Trevisan 1879 (Approved Lists 1980)
                         2 Leptotrichia goodfellowii Eribe et al. 2004
                         3 Leptotrichia hofstadii Eribe et al. 2004
                         4 Leptotrichia hongkongensis Woo et al. 2011
                         5 Leptotrichia shahii Eribe et al. 2004
                         6 Leptotrichia trevisanii Tee et al. 2002
                         7 Leptotrichia wadei Eribe et al. 2004