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 Gammaproteobacteriaᵀ Garrity et al. 2005
                   Order Oceanospirillales Garrity et al. 2005
                     01 Genus Marinicellulosiphila Tachioka et al. 2025, incertae sedis
                     02 Genus Salicola Maturrano et al. 2006, incertae sedis
                     03 Genus Spongiispira Kaesler et al. 2008, incertae sedis [monotypic]
                     04 Family Aestuariirhabdaceae Khan et al. 2020 [monotypic]
                     05 Family Alcanivoracaceae corrig. Golyshin et al. 2005
                     06 Family Balneatricaceae corrig. Krishnan et al. 2019
                     07 Family Endozoicomonadaceae Bartz et al. 2018
                     08 Family Gynuellaceae Kevbrin et al. 2020 [monotypic]
                     09 Family Hahellaceae Garrity et al. 2005
                     10 Family Halomonadaceae Franzmann et al. 1989
                     11 Family Kangiellaceae Wang et al. 2015
                     12 Family Litorivicinaceae Deshmukh and Oren 2023
                     13 Family Natronospirillaceae Kevbrin et al. 2020
                     14 Family Oceanospirillaceaeᵀ Garrity et al. 2005
                     15 Family Oleiphilaceae Golyshin et al. 2002 [monotypic]
                     16 Family Saccharospirillaceae Kevbrin et al. 2020
                     17 Family "Zooshikellaceae" Liao et al. 2020 nom. inval.