目前接受的分類法基於原核生物標準命名列表(LPSN)[1] 和美國國家生物技術信息中心(NCBI) 。[4]
| 基於16S rRNA LTP_10_2024[5][6][7]
 | 
基於120種標記蛋白質 GTDB 09-RS220[8][9][10]
 | 
| "Bacillia" s.s.
 | 
|  
 | 
 |  
|  
 |  
|  
 | 
|  
 | 
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
 Novibacillaceae
 
 |  
|  
 |  
|  
 | 
|  
 | 
| Caldalkalibacillales
 | 
 Caldalkalibacillaceae
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
| "Caldibacillales"
 | 
 Caldibacillaceae
 
 |  
|  
 |  
| Calditerricolales
 | 
 Calditerricolaceae
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
|  
 | 
 Microaerobacter
 
 |  
|  
 |  
|  
 | 
| Desulfuribacillales
 | 
 Desulfuribacillaceae
 
 |  
|  
 |  
| Tepidibacillales
 | 
 Tepidibacillaceae
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
 Oxalophagaceae [incl. "Ammoniphilaceae"]
 
 |  
|  
 |  
|  
 | 
| Aneurinibacillales
 | 
 Aneurinibacillaeae
 
 |  
|  
 |  
| Brevibacillales
 | 
 Brevibacillaceae
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
 "Bacillus thermozeamaize"
 
 |  
|  
 |  
|  
 | 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 | 
| "Bacillia" s.s.
 | 
|  
 | 
| "Pasteuriales"
 | 
 Pasteuriaceae
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
 |  
|  
 |  
|  
 | 
| Tumebacillales
 | 
|  
 | 
|  
 | 
 Collibacillus {BOQE01}
 
 |  
|  
 |  
|  
 | 
 Effusibacillaceae
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
 Tumebacillaceae
 
 |  
|  
 |   
 |  
|  
 |  
| Alicyclobacillales
 | 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
| Desulfuribacillales
 | 
 Desulfuribacillaceae
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
| Calditerricolales
 | 
 Calditerricolaceae
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
| Bacillales_F
 | 
 "Bacillus thermozeamaize" {Bacillaceae_M}
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
| Thermicanales
 | 
 Thermicanaceae
 
 |  
|  
 |  
| "Brockiales"
 | 
 "Brockiaceae"
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
| Thermoactinomycetales
 | 
|  
 | 
 Novibacillaceae
 
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
|  
 | 
 "Polycladomycesaceae"
 
 |  
|  
 |  
|  
 | 
 "Planifilaceae"
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
 "Desmosporaceae"
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
| Paenibacillales
 | 
|  
 | 
 "Reconcilibacillaceae"
 
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
 "Xylanibacillaceae"
 
 |  
|  
 |  
|  
 | 
|  
 | 
 Insulibacter {DA-C8}
 
 |  
|  
 |  
|  
 | 
 "Longirhabdaceae"
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
| DSM‑22679
 | 
 Microaerobacter {DSM-22679}
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
| Aneurinibacillales
 | 
|  
 | 
 "Ammoniphilaceae"
 
 |  
|  
 |  
|  
 | 
 Aneurinibacillaceae
 
 |  
|  
 |   
 |  
|  
 |  
| Brevibacillales
 | 
 Brevibacillaceae
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
| Tepidibacillales
 | 
 Tepidibacillaceae
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
| "Rubeoparvulales"
 | 
 "Rubeoparvulaceae"
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
 |  
|  
 |  
|  
 | 
|  
 | 
| Exiguobacteriales
 | 
 Exiguobacteriaceae
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
| "Harrysmithimonadales"
 | 
 "Harrysmithimonadaceae"
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
| "Bacillidae"
 | 
|  
 | 
| "Caldibacillales"
 | 
|  
 | 
|  
 | 
 Bacillus_CG & BF {JC228}
 
 |  
|  
 |  
|  
 | 
 Caldibacillaceae
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
 Heyndrickxiaceae
 
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
 Bacillus smithii {DSM-4216}
 
 |  
|  
 |  
|  
 | 
|  
 | 
 Oikeobacillus {DSM-23947}
 
 |  
|  
 |  
|  
 | 
 Domibacillaceae
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
 Falsibacillaceae
 
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
 Mangrovibacillus {R1DC41}
 
 |  
|  
 |  
|  
 | 
|  
 | 
 Bacillus coahuilensis {Bacillaceae_K}
 
 |  
|  
 |  
|  
 | 
 Jeotgalibacillaceae
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
 Rossellomoreaceae
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
 |  
|  
 |   
 |  
|  
 |   
 |  
| Bacillales_B
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
| Bacillales s.s.
 | 
|  
 | 
 |  
|  
 |  
|  
 | 
|  
 | 
 Priestia {Bacillaceae_H}
 
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
 Bacillaceae_L
 
 |  
|  
 |  
|  
 | 
 Anoxybacillaceae
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
 Sutcliffiellaceae
 
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
 Bacillus carboniphilus {JAIVKR01}
 
 |  
|  
 |  
|  
 | 
 Aeribacillaceae
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
 Bacillaceae
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
| Bacillales_C
 | 
|  
 | 
 Bacillus solimangrovi {Bacillaceae_N}
 
 |  
|  
 |  
|  
 | 
 Schinkiaceae
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
|  
 | 
| Bacillales_E
 | 
|  
 | 
 Lottiidibacillaceae
 
 |  
|  
 |  
|  
 | 
 "Massilibacteriaceae"
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
| Bacillales_K
 | 
 Sporolactobacillaceae
 
 |  
|  
 |  
| Bacillales_G
 | 
|  
 | 
|  
 | 
 "Maribacillaceae"
 
 |  
|  
 |  
|  
 | 
 Pseudalkalibacillus species-group 2 {HB172195}
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
 Fictibacillaceae
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
| Bacillales_H
 | 
|  
 | 
|  
 | 
 Marinococcaceae
 
 |  
|  
 |  
|  
 | 
 Salisediminibacteriaceae
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
 Anaerobacillaceae
 
 |  
|  
 |  
|  
 | 
|  
 | 
 "Desertibacillaceae"
 
 |  
|  
 |  
|  
 | 
|  
 | 
 Alkalihalobacterium {Bacillaceae_F}
 
 |  
|  
 |  
|  
 | 
 Bacillaceae_D
 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
|  
 | 
|  
 | 
| Bacillales_I
 | 
 Bacillus marinisedimentorum {Bacillaceae_O}
 
 |  
|  
 |  
| DSM‑28697
 | 
 Aureibacillaceae
 
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |  
|  
 | 
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |  
|  
 |   
 |