Williamsia Kämpfer et al. 1999 Williamsia muralis Kämpfer et al. 1999 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Actinobacteria (sic) Goodfellow 2021 non Actinobacteria Stackebrandt et al. 1997 Actinomycetota corrig. Goodfellow 2021 Actinobacteriota corrig. Goodfellow 2021 Actinomycetes Krasil'nikov 1949 (Approved Lists 1980) Corynebacteriales Goodfellow and Jones 2015 emend. Nouioui et al. 2018 Nocardiaceae Castellani and Chalmers 1919 (Approved Lists 1980) emend. Nouioui et al. 2018 Williamsia Kämpfer et al. 1999 Nocardiaceae Castellani and Chalmers 1919 (Approved Lists 1980) emend. Nouioui et al. 2018 Rhodococcus Zopf 1891 (Approved Lists 1980) Nocardia Trevisan 1889 emend. McClung 1974 (Approved Lists 1980) Smaragdicoccus Adachi et al. 2007 Gordona (sic) (ex Tsukamura 1971) Stackebrandt et al. 1989 Gordonia corrig. (ex Tsukamura 1971) Stackebrandt et al. 1989 Millisia Soddell et al. 2006 Skermania Chun et al. 1997 Tomitella Katayama et al. 2010 Jongsikchunia Nouioui et al. 2018 Aldersonia Nouioui et al. 2018 Antrihabitans Lee et al. 2020 Spelaeibacter Kim et al. 2022 Williamsia marianensis Pathom-aree et al. 2006 Williamsia maris Stach et al. 2004 emend. Nouioui et al. 2018 Williamsia serinedens Yassin et al. 2007 emend. Nouioui et al. 2018 Williamsia muralis Kämpfer et al. 1999 Williamsia faeni Jones et al. 2010 Williamsia sterculiae Fang et al. 2013 emend. Nouioui et al. 2018 Williamsia deligens Yassin and Hupfer 2006 emend. Nouioui et al. 2018 Williamsia herbipolensis Kämpfer et al. 2016 Williamsia phyllosphaerae Kämpfer et al. 2011 Williamsia limnetica Sazak and Sahin 2012 Williamsia spongiae Afonso de Menezes et al. 2017 Williamsia aurantiaca corrig. Afonso de Menezes et al. 2020 Williamsia aurantiacus (sic) Afonso de Menezes et al. 2020 Williamsia soli Zhang et al. 2022 Pathom-aree W. Nogi Y. Sutcliffe I.C. Ward A.C. Horikoshi K. Bull A.T. Goodfellow M. Williamsia marianensis sp. nov., a novel actinomycete isolated from the Mariana Trench. 2006 56 5 1123 1126 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.64132-0 16627665 Kämpfer P. Busse H.-J. Horn H. Abdelmohsen U.R. Hentschel U. Glaeser S.P. Williamsia herbipolensis nov., isolated from the phyllosphere of Arabidopsis thaliana 2016 66 11 4609 4613 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.001398 2750333 Afonso de Menezes C.B. Afonso R.S. Souza W.R. Parma M. Melo I.S. Zucchi T.D. Fantinatti-Garboggini F. Williamsia spongiae sp. nov. an actinomycete isolated from the marine sponge Amphimedon viridis 2017 67 5 1260 1265 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.001796 28100308 Sazak A. Sahin N. Williamsia limnetica sp. nov., isolated from a limnetic lake sediment 2012 62 6 1414 1418 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.032474-0 21841009 Afonso de Menezes C.B. Afonso R.S. de Souza W.R. Parma M.M. de Melo I.S. Fugita F.L.S. Moraes L.A.B. Zucchi T.D. Fantinatti-Garboggini F. Williamsia aurantiacus sp. nov. a novel actinobacterium producer of antimicrobial compounds isolated from the marine sponge. 2019 201 5 691 698 Archives of Microbiology Arch Microbiol 0302-8933 1432-072X 10.1007/s00203-019-01633-z 30799528 Zhi X.Y. Li W.J. Stackebrandt E. An update of the structure and 16S rRNA gene sequence-based definition of higher ranks of the class Actinobacteria, with the proposal of two new suborders and four new families and emended descriptions of the existing higher taxa. 2009 59 3 589 608 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.65780-0 19244447 Yassin A.F. Hupfer H. Williamsia deligens sp. nov., isolated from human blood 2006 56 1 193 197 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.63856-0 16403886 Stach J.E.M. Maldonado L.A. Ward A.C. Bull A.T. Goodfellow M. Williamsia maris sp. nov., a novel actinomycete isolated from the Sea of Japan. 2004 54 1 191 194 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.02767-0 14742479 Jones A.L. Payne G.D. Goodfellow M. Williamsia faeni sp. nov., an actinomycete isolated from a hay meadow 2010 60 11 2548 2551 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.015826-0 20008113 Zhang M.-J. Li X.-H. Peng L.-Y. Yun S.-T. Liu Z.-C. Zhou Y.-X. Williamsia soli sp. nov., an actinobacterium isolated from soil at a thermal power plant in Yantai, China. 2021 204 1 102 102 Archives of Microbiology Arch Microbiol 0302-8933 1432-072X 10.1007/s00203-021-02714-8 34966962 Garrity G.M. Holt J.G. Garrity G.M. Boone D.R. Castenholz R.W. Taxonomic Outline of the Archaea and Bacteria. 2001 1 2 155 166 Bergey's Manual of Systematic Bacteriology Springer New York Kämpfer P. Andersson M.A. Rainey F.A. Kroppenstedt R.M. Salkinoja-Salonen M. Williamsia muralis gen. nov., sp. nov., isolated from the indoor environment of a children's day care centre. 1999 49 2 681 687 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-49-2-681 10319491 Kämpfer P. Wellner S. Lohse K. Lodders N. Martin K. Williamsia phyllosphaerae sp. nov., isolated from the surface of Trifolium repens leaves 2011 61 11 2702 2705 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.029322-0 21169464 Yassin A.F. Young C.C. Lai W.A. Hupfer H. Arun A.B. Shen F.T. Rekha P.D. Ho M.J. Williamsia serinedens sp. nov., isolated from an oil-contaminated soil 2007 57 3 558 561 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.64691-0 17329784 Fang X.-M. Su J. Wang H. Wei Y.-Z. Zhang T. Zhao L.-L. Liu H.-Y. Ma B.-P. Klenk H.-P. Zhang Y.-Q. Yu L.-Y. Williamsia sterculiae sp. nov., isolated from a Chinese medicinal plant 2013 63 11 4158 4162 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.052688-0 23771621