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 Bacillatiᵀ (Gibbons and Murray 1978) Oren and Göker 2024 Phylum Actinomycetota Goodfellow 2021 Class Actinomycetesᵀ Krassilnikov 1949 (Approved Lists 1980) Order Actinomycetalesᵀ Buchanan 1917 (Approved Lists 1980) Family Actinomycetaceaeᵀ Buchanan 1918 (Approved Lists 1980) 01 Genus Actinobaculum Lawson et al. 1997 02 Genus Actinomycesᵀ Harz 1877 (Approved Lists 1980) 03 Genus Actinotignum Yassin et al. 2015 04 Genus Arcanobacterium Collins et al. 1983 05 Genus Boudabousia Nouioui et al. 2018 06 Genus Bowdeniella corrig. Nouioui et al. 2018 07 Genus Buchananella Nouioui et al. 2018 08 Genus Flaviflexus Du et al. 2013 09 Genus Fudania Zhu et al. 2019 10 Genus Gleimia Nouioui et al. 2018 11 Genus Mobiluncus Spiegel and Roberts 1984 12 Genus Nanchangia Liu et al. 2021 13 Genus Pauljensenia Nouioui et al. 2018 14 Genus Peptidiphaga Beall et al. 2021 15 Genus Schaalia Nouioui et al. 2018 16 Genus Scrofimicrobium Wylensek et al. 2021 17 Genus Trueperella Yassin et al. 2011 18 Genus Varibaculum Hall et al. 2003 [monotypic] 19 Genus Winkia Nouioui et al. 2018 20 Genus "Ancrocorticia" Xu et al. 2019 nom. inval. 21 Genus "Changpingibacter" Jiao et al. 2022 nom. inval. 22 Genus "Neoactinobaculum" Belkacemi et al. 2019 nom. inval.