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 Pseudomonadati (Gibbons and Murray 1978) Oren and Göker 2024
               Phylum Pseudomonadotaᵀ Garrity et al. 2021
                 Class Alphaproteobacteria Garrity et al. 2006
                   Order Rhodobacterales Garrity et al. 2006
                     Family Roseobacteraceae Liang et al. 2021
                       Genus Jannaschia Wagner-Döbler et al. 2003
                         1 Jannaschia aquimarina Park and Yoon 2012
                         2 Jannaschia cystaugens Adachi et al. 2004
                         3 Jannaschia donghaensis Yoon et al. 2007
                         4 Jannaschia faecimaris Jung and Yoon 2014
                         5 Jannaschia helgolandensisᵀ Wagner-Döbler et al. 2003
                         6 Jannaschia pohangensis Kim et al. 2008
                         7 Jannaschia rubra Macián et al. 2005
                         8 Jannaschia seohaensis Yoon et al. 2010
                         9 Jannaschia seosinensis Choi et al. 2006