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 Elusimicrobiota Geissinger et al. 2021
                 Class Endomicrobiia corrig. Zheng et al. 2018 [monotypic]
                   Order Endomicrobialesᵀ Zheng et al. 2018
                     Family Endomicrobiaceaeᵀ Zheng et al. 2018
                       1 Genus Endomicrobiumᵀ Zheng et al. 2018
                       2 Genus "Candidatus Endomicrobium" Stingl et al. 2020 nom. pro-illeg.
                       3 Genus "Candidatus Ectomicrobium" Mies and Brune 2024 nom. pro-inval.
                       4 Genus "Candidatus Parendomicrobium" Mies and Brune 2024 nom. pro-inval.
                       5 Genus "Candidatus Praeruminimicrobium" Mies and Brune 2024 nom. pro-inval.
                       6 Genus "Candidatus Proendomicrobium" Mies and Brune 2024 nom. pro-inval.
                       7 Genus "Candidatus Proruminimicrobium" Mies and Brune 2024 nom. pro-inval.
                       8 Genus "Candidatus Ruminimicrobiellum" Mies and Brune 2024 nom. pro-inval.
                       9 Genus "Candidatus Ruminimicrobium" Mies and Brune 2024 nom. pro-inval.