actinomycetia actinomycetia the actinomycetia are a class of bacteria. actinomycetia scanning electron micrograph of actinomyces israelii. scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia(stackebrandt et al. 1997) salam et al. 2020 type genus actinomycesharz 1877 (approved lists 1980) orders see text synonyms actinobacteria stackebrandt et al. 1997 actinomycetes krassilnikov 1949 (approved lists 1980) arabobacteria cavalier-smith 2002 arthrobacteria cavalier-smith 2002 mycobacteria pribram 1929 streptomycetes cavalier-smith 2002 taxonomy the currently accepted taxonomy is based on the list of prokaryotic names with standing in nomenclature (lpsn) and national center for biotechnology information (ncbi). acidothermales sen et al. 2014 actinomycetales buchanan 1917 (approved lists 1980) actinopolysporales goodfellow and trujillo 2015 bifidobacteriales stackebrandt et al. 1997 catenulisporales donadio et al. 2015 cryptosporangiales nouioui et al. 2018 frankiales sen et al. 2014 geodermatophilales sen et al. 2014 glycomycetales labeda 2015 jatrophihabitantales salam et al. 2020 jiangellales tang et al. 2015 kineosporiales kämpfer 2015 micrococcales prévot 1940 (approved lists 1980) micromonosporales genilloud 2015 mycobacteriales janke 1924 (approved lists 1980) nakamurellales sen et al. 2014 propionibacteriales (rainey et al. 1997) patrick and mcdowell 2015 pseudonocardiales labeda and goodfellow 2015 sporichthyales nouioui et al. 2018 streptomycetales cavalier-smith 2002 streptosporangiales goodfellow 2015 phylogeny whole-genome based phylogeny 16s rrna based ltp_12_2021 gtdb 07-rs207 by genome taxonomy database nitriliruptoria actinomycetia acidothermales sporichthyales catenulisporales streptomycetales streptosporangiales jiangellales propionibacteriales frankiales cryptosporangiales glycomycetales micromonosporales jatrophihabitantales geodermatophilales nakamurellales mycobacteriales actinopolysporales pseudonocardiales bifidobacteriales actinomycetales kineosporiales micrococcales acidimicrobiia acidimicrobiales nitriliruptoria egicoccales nitriliruptorales egibacterales euzebyales actinomycetia carbonactinosporaceae acidothermales jatrophihabitantales frankiales geodermatophilales cryptosporangiales sporichthyales nakamurellales kineosporiales actinomycetales catenulisporales motilibacterales streptomycetales streptosporangiales propionibacteriales jiangellales glycomycetales micromonosporales mycobacteriales pseudonocardiales actinomycetia nitriliruptoridae euzebyales (incl. egibacterales) nitriliruptorales (incl. egicoccales) actinobacteridae actinomycetales "polyseptineae" (incl. aquipuribacterales; dermatophilales) kineosporineae (incl. kineosporiales) actinomycetineae (incl. beutenbergiales; bifidobacteriales; bogoriellales; cellulomonadales; demequinales; dermabacterales; ruaniales) micrococcineae (incl. brevibacteriales; microbacteriales; micrococcales) "nanopelagicales" jiangellales propionibacteriales acidothermales streptosporangiales mycobacteriales frankineae (incl. frankiales) micromonosporineae (incl. actinocatenisporales; actinoplanales; cryptosporangiales; glycomycetales; micromonosporales; phytomonosporales) corynebacterineae (incl. actinopolysporales; antricoccales; corynebacteriales; geodermatophilales; jatrophihabitantales; nakamurellales; pseudonocardiales) sporichthyales motilibacterales streptomycetales (incl. carbonactinosporaceae; catenulisporales)