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 Bacteroidota Krieg et al. 2021 Class Cytophagia Nakagawa 2012 [monotypic] Order Cytophagalesᵀ Leadbetter 1974 (Approved Lists 1980) Family Spirosomataceae corrig. Larkin and Borrall 1978 (Approved Lists 1980) 01 Genus Aquirufa Pitt et al. 2019 02 Genus Arcicella Nikitin et al. 2004 03 Genus Arcticibacterium Li et al. 2017 04 Genus Arsenicibacter Huang et al. 2017 05 Genus Arundinibacter Szuróczki et al. 2019 06 Genus Dyadobacter Chelius and Triplett 2000 07 Genus Emticicia Saha and Chakrabarti 2006 08 Genus Fibrella Filippini et al. 2011 [monotypic] 09 Genus Fibrisoma Filippini et al. 2011 [monotypic] 10 Genus Flectobacillus Larkin et al. 1977 (Approved Lists 1980) 11 Genus Fluviimonas Sheu et al. 2013 12 Genus Huanghella Jiang et al. 2013 [monotypic] 13 Genus Jiulongibacter Liu et al. 2016 14 Genus Lacihabitans Joung et al. 2014 15 Genus Larkinella Vancanneyt et al. 2006 16 Genus Leadbetterella Weon et al. 2005 [monotypic] 17 Genus Marinilongibacter Zhang et al. 2023 18 Genus Nibrella Kang et al. 2013 19 Genus Persicitalea Yoon et al. 2007 [monotypic] 20 Genus Pseudarcicella Kämpfer et al. 2012 21 Genus Ravibacter Chaudhary et al. 2017 22 Genus Rhabdobacter Dahal and Kim 2016 23 Genus Rudanella Weon et al. 2008 [monotypic] 24 Genus Runella Larkin and Williams 1978 (Approved Lists 1980) 25 Genus Sandaracinomonas Chen et al. 2020 26 Genus Siphonobacter Táncsics et al. 2010 27 Genus Spirosomaᵀ Migula 1894 (Approved Lists 1980) 28 Genus Taeseokella Joung et al. 2015 29 Genus Telluribacter Lee et al. 2017 30 Genus "Fibrivirga" Park et al. 2022 nom. inval. 31 Genus "Salmonirosea" Baek et al. 2024 nom. inval.