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 Bacillotaᵀ Gibbons and Murray 2021 Class Bacilliᵀ Ludwig et al. 2010 Order Caryophanalesᵀ Peshkoff 1939 (Approved Lists 1980) Family Bacillaceae Fischer 1895 (Approved Lists 1980) 001 Genus Aciduricibacillus Liu et al. 2025 002 Genus Aeribacillus Miñana-Galbis et al. 2010 [monotypic] 003 Genus Aidingibacillus Wang et al. 2021 004 Genus Aliibacillus Xu et al. 2019 005 Genus Alkalibacillus Jeon et al. 2005 006 Genus Alkalicoccobacillus Joshi et al. 2022 007 Genus Alkalicoccus Zhao et al. 2017 008 Genus Alkalihalobacillus Patel and Gupta 2020 009 Genus Alkalihalobacterium Joshi et al. 2022 010 Genus Alkalihalophilus Joshi et al. 2022 011 Genus Alkalilactibacillus Schmidt et al. 2016 012 Genus Allobacillus Sheu et al. 2011 [monotypic] 013 Genus Alteribacillus Didari et al. 2012 014 Genus Alteribacter Gupta et al. 2020 015 Genus Amphibacillus Niimura et al. 1990 016 Genus Anaerobacillus Zavarzina et al. 2010 017 Genus Anoxybacillus Pikuta et al. 2000 018 Genus Anoxybacteroides Patel et al. 2024 019 Genus Aquibacillus Amoozegar et al. 2014 020 Genus Aquisalibacillus Márquez et al. 2008 [monotypic] 021 Genus Aureibacillus Liu et al. 2015 022 Genus Bacillusᵀ Cohn 1872 (Approved Lists 1980) 023 Genus Calculibacillus Min et al. 2021 024 Genus Caldalkalibacillus Xue et al. 2006 025 Genus Caldibacillus Coorevits et al. 2012 [monotypic] 026 Genus Calditerricola Moriya et al. 2011 027 Genus Calidifontibacillus Adiguzel et al. 2020 028 Genus Camelliibacillus Lin et al. 2018 029 Genus Cerasibacillus Nakamura et al. 2004 [monotypic] 030 Genus Compostibacillus Yu et al. 2015 031 Genus Desertibacillus Bhatt et al. 2017 032 Genus Domibacillus Seiler et al. 2013 033 Genus Ectobacillus Gupta et al. 2020 034 Genus Evansella Gupta et al. 2020 035 Genus Exiguobacterium Collins et al. 1984 036 Genus Falsibacillus Zhou et al. 2009 [monotypic] 037 Genus Ferdinandcohnia corrig. Gupta et al. 2020 038 Genus Fermentibacillus Hirota et al. 2016 039 Genus Fervidibacillus Yang et al. 2023 040 Genus Fictibacillus Glaeser et al. 2013 041 Genus Filobacillus Schlesner et al. 2001 [monotypic] 042 Genus Geobacillus Nazina et al. 2001 043 Genus Geomicrobium Echigo et al. 2010 044 Genus Gottfriedia Gupta et al. 2020 045 Genus Gracilibacillus Wainø et al. 1999 046 Genus Halalkalibacillus Echigo et al. 2007 [monotypic] 047 Genus Halalkalibacter Joshi et al. 2022 048 Genus Halalkalibacterium Joshi et al. 2022 049 Genus Halobacillus Spring et al. 1996 050 Genus Halolactibacillus Ishikawa et al. 2005 051 Genus Heyndrickxia Gupta et al. 2020 052 Genus Hydrogenibacillus Kämpfer et al. 2013 [monotypic] 053 Genus Lederbergia Gupta et al. 2020 054 Genus Lentibacillus Yoon et al. 2002 055 Genus Litchfieldia Gupta et al. 2020 056 Genus Litoribacterium Mahmoud et al. 2021 057 Genus Lottiidibacillus Liu et al. 2020 058 Genus Mangrovibacillus Sefrji et al. 2023 059 Genus Marinococcus Hao et al. 1985 060 Genus Melghiribacillus Addou et al. 2015 061 Genus Metabacillus Patel and Gupta 2020 062 Genus Microaerobacter Khelifi et al. 2011 [monotypic] 063 Genus Natribacillus Echigo et al. 2012 [monotypic] 064 Genus Natronobacillus Sorokin et al. 2009 [monotypic] 065 Genus Oceanobacillus Lu et al. 2002 066 Genus Oikeobacillus Narsing Rao et al. 2023 067 Genus Ornithinibacillus Mayr et al. 2006 068 Genus Paenalkalicoccus Xu et al. 2022 069 Genus Parageobacillus Aliyu et al. 2019 070 Genus Paraliobacillus Ishikawa et al. 2003 071 Genus Paralkalibacillus Hirota et al. 2017 072 Genus Paranoxybacillus Patel et al. 2024 073 Genus Paucisalibacillus Nunes et al. 2006 [monotypic] 074 Genus Pelagirhabdus Sultanpuram et al. 2016 075 Genus Peribacillus Patel and Gupta 2020 076 Genus Piscibacillus Tanasupawat et al. 2007 077 Genus Polygonibacillus Hirota et al. 2016 078 Genus Pontibacillus Lim et al. 2005 079 Genus Pradoshia Saha et al. 2019 080 Genus Priestia Gupta et al. 2020 081 Genus Pseudalkalibacillus Joshi et al. 2022 082 Genus Pseudobacillus Verma et al. 2024 083 Genus Pseudogracilibacillus Glaeser et al. 2014 084 Genus Pueribacillus Wang et al. 2018 085 Genus Radiobacillus Li et al. 2020 086 Genus Rossellomorea Gupta et al. 2020 087 Genus Saccharococcus Nystrand 1984 [monotypic] 088 Genus Salibacterium Reddy et al. 2015 089 Genus Salicibibacter Jang et al. 2021 090 Genus Salimicrobium Yoon et al. 2007 091 Genus Salinibacillus Ren and Zhou 2005 092 Genus Salipaludibacillus Sultanpuram and Mothe 2016 093 Genus Salirhabdus Albuquerque et al. 2007 [monotypic] 094 Genus Salisediminibacterium Jiang et al. 2012 095 Genus Saliterribacillus Amoozegar et al. 2013 096 Genus Salsuginibacillus Carrasco et al. 2007 [monotypic] 097 Genus Schinkia Gupta et al. 2020 098 Genus Sediminibacillus Carrasco et al. 2008 [monotypic] 099 Genus Shouchella Joshi et al. 2022 100 Genus Siminovitchia Gupta et al. 2020 101 Genus Sinibacillus Yang and Zhou 2014 102 Genus Sinobaca Li et al. 2008 [monotypic] 103 Genus Streptohalobacillus Wang et al. 2011 104 Genus Sutcliffiella Gupta et al. 2020 105 Genus Swionibacillus Li et al. 2017 106 Genus Tenuibacillus Ren and Zhou 2005 [monotypic] 107 Genus Tepidibacillus Slobodkina et al. 2014 108 Genus Terribacillus An et al. 2007 109 Genus Terrihalobacillus Galisteo et al. 2023 110 Genus Terrilactibacillus Prasirtsak et al. 2016 111 Genus Texcoconibacillus Ruiz-Romero et al. 2013 112 Genus Thalassobacillus García et al. 2005 [monotypic] 113 Genus Thalassorhabdus Sultanpuram and Mothe 2018 114 Genus Thermolongibacillus Cihan et al. 2014 115 Genus Tigheibacillus Miliotis et al. 2024 116 Genus Virgibacillus Heyndrickx et al. 1998 117 Genus Viridibacillus Albert et al. 2007 118 Genus Vulcanibacillus L'Haridon et al. 2006 [monotypic] 119 Genus "Jilinibacillus" Liu et al. 2015 nom. inval. 120 Genus "Massilibacterium" Tidjani Alou et al. 2016 nom. inval. 121 Genus "Nanhaiella" Ge et al. 2025 nom. inval. 122 Genus "Numidum" Tidjani Alou et al. 2016 nom. inval. 123 Genus "Rubeoparvulum" Tidjani Alou et al. 2017 nom. inval. 124 Genus "Candidatus Avamphibacillus" Gilroy et al. 2022