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The statistics refer to the public database after the last refresh (2026-03-10). Note that the internal database can be significantly larger at a given time point because as yet not all entries underwent the final quality check. More information on type-strain deposits in Biological Resource Centres (BRCs) is found on the culture collection page. Information on the International Code of Nomenclature of Prokaryotes (ICNP) is provided on the nomenclature page. Validly published names of Cyanobacteria are mostly validly published under International Code of Nomenclature for algae, fungi, and plants (ICNafp).
For the approximate number of taxonomic proposals per country see the page on corresponding authors. For the number of species per genus, see the page on the largest genera. There is also a page on the number of taxon names per year.
Category species: 27442
Category genus: 4480
Category family: 926
Category subspecies: 854
Category order: 385
Category class: 186
Category phylum: 57
Category suborder: 24
Category tribe: 24
Category subgenus: 12
Category kingdom: 8
Category subclass: 7
Category division: 2
Category domain: 2
Category species: 22153
Category genus: 3959
Category family: 665
Category subspecies: 569
Category order: 255
Category class: 123
Category phylum: 46
Category tribe: 24
Category suborder: 23
Category subgenus: 12
Category kingdom: 8
Category subclass: 7
Category division: 2
Category domain: 2
Category species: 3048
Category genus: 1258
Category family: 312
Category order: 233
Category phylum: 212
Category class: 159
Category subspecies: 16
Category superphylum: 2
Category subclass: 1
Category suborder: 1
Category species: 6980
Category genus: 954
Category subspecies: 286
Category family: 172
Category phylum: 142
Category class: 84
Category variety: 82
Category order: 73
Category form: 46
Category subphylum: 27
Category kingdom: 18
Category subclass: 17
Category division: 15
Category uncategorized: 14
Category superphylum: 13
Category domain: 10
Category infrakingdom: 10
Category infraphylum: 9
Category subdivision: 9
Category subkingdom: 9
Category superclass: 9
Category pathovar: 8
Category subgenus: 8
Category suborder: 6
Category section: 4
Category subdomain: 3
Category superdivision: 3
Category series: 2
Category superdomain: 1
Category superkingdom: 1
Category species: 7215
Category variety: 1025
Category genus: 819
Category form: 531
Category family: 169
Category order: 50
Category subgenus: 21
Category class: 17
Category subfamily: 12
Category section: 11
Category tribe: 5
Category subspecies: 4
Category phylum: 3
Category subclass: 2
Category kingdom: 1
Category subdivision: 1
Category subsection: 1
Pseudomonadota: 8281
Actinomycetota: 4802
Bacillota: 3811
Bacteroidota: 2879
Methanobacteriota: 694
Mycoplasmatota: 229
Spirochaetota: 207
Deinococcota: 141
Planctomycetota: 134
Acidobacteriota: 83
Thermoproteota: 83
Chloroflexota: 60
Thermotogota: 53
Fusobacteriota: 52
Aquificota: 33
Synergistota: 31
Balneolota: 27
Chlorobiota: 22
Chlamydiota: 20
Rhodothermota: 19
Deferribacterota: 14
Nitrospirota: 12
Microcaldota: 1
Nanobdellota: 1
Nitrospinota: 1
Words: 105655
Grammar specifiers: 105503
Explanations: 102683
Syllabifications: 56085
Explanations, nonredundant: 40298
Words, nonredundant: 33116
Syllabifications, nonredundant: 27158
Grammar specifiers, nonredundant: 303
Taxonomic notes: 164320
Type-strain deposits: 108454
Type-strain deposits in BRCs: 82591
Type-strain deposits in active BRCs: 76086
Type-strain deposits in linked BRCs: 75827
Publications: 31644
16S rRNA gene accession numbers: 25848
Emendations: 5377
Last covered IJSEM issue: 76/02 (February 2026), number of IJSEM lists: 1
LPSN (collected by new production system): 38316
LPSN (imported from pre-DSMZ version of LPSN): 16757
PNU (Prokaryotic Nomenclature Up-to-date): 5503